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oldlinux-files/docs/interrupts/inter61/INTERRUP.B
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Interrupt List, part 2 of 18
Copyright (c) 1989-1999,2000 Ralf Brown
--------V-10BF--CX0000-----------------------
INT 10 - Athena Digital HGCIBM.COM - INSTALLATION CHECK
AH = BFh
CX = 0000h (???)
Return: CX = 0202h
DL = ??? (internal data, possibly version number)
--------b-10BF00-----------------------------
INT 10 - VIDEO - Compaq Extensions - SELECT EXTERNAL MONITOR
AX = BF00h
Return: nothing
Desc: specify that the external monitor become the active monitor
Note: all registers preserved and the internal monitor is blanked
SeeAlso: AX=BF01h,AX=BF12h,AH=12h/BL=35h
--------b-10BF01-----------------------------
INT 10 - VIDEO - Compaq Extensions - SELECT INTERNAL MONITOR
AX = BF01h
Return: nothing
Desc: specify that the internal monitor become the active monitor
Note: all registers preserved and the external monitor is blanked
SeeAlso: AX=BF00h,AX=BF12h,AH=12h/BL=35h
--------b-10BF02-----------------------------
INT 10 - VIDEO - Compaq Extensions - SET MASTER MODE OF CURRENT CONTROLLER
AX = BF02h
BH = master mode
04h CGA
05h EGA
07h MDA
Return: nothing
SeeAlso: AX=BF03h
--------b-10BF03BX0000-----------------------
INT 10 - VIDEO - Compaq Extensions - GET ENVIRONMENT
AX = BF03h
BX = 0000h
Return: BH = active monitor
(00h = external, 01h = internal, 03h both, 04h neither)
BL = master mode (see #00211)
CH = ASIC type and version
00h (reserved, very early Compaq VGCs)
31h if QVision VGA
CL = switchable VDU modes supported (see #00212)
DH = internal monitor type (see #00213)
DL = external monitor type (see #00213)
SeeAlso: AX=1A00h,AX=BF00h,AX=BF01h,AX=BF02h,AX=BF11h
(Table 00211)
Values for Compaq video master mode:
00h switchable VDU not present
04h CGA
05h EGA
07h MDA
08h switchable LCD controller present
09h plasma VGA
0Ah TFT (active-matrix) VGA
Bitfields for Compaq switchable VDU modes support:
Bit(s) Description (Table 00212)
0 CGA supported
1,2 reserved (1)
3 MDA supported
4 BitBLT engine available
5 132-column support availble
6 640x480x256 mode available
7 8-bit DAC mode available
(Table 00213)
Values for Compaq monitor type:
00h none
01h dual-mode monitor
02h 5153 RGB monitor (RGBI 16-color)
03h Compaq Color monitor
04h 640x400 flat panel (Plasma CGA)
05h VGC monochrome
06h VGC color
07h 8-level mono LCD VGA (internal)
1024x768 mono VGA (external)
08h 16-level mono plasma VGA (internal)
1024x768 color VGA (external)
09h 4-level mono LCD CGA
0Ah 16-level mono LCD VGA
0Bh active-matrix color VGA
0Ch active-matrix mono VGA
0Dh STN color VGA
--------b-10BF04-----------------------------
INT 10 - VIDEO - Compaq Extensions - SET MODE SWITCH DELAY
AX = BF04h
BH = new state of delay (00h enabled, 01h disabled)
Return: nothing
Note: the 1993/04/08 sytem ROM appears to use BL instead of BH; a future
version of the list will provide more definite information
SeeAlso: AX=BF05h
--------b-10BF05-----------------------------
INT 10 - VIDEO - Compaq Extensions - ENABLE/DISABLE DISPLAY
AX = BF05h
BH = new state of video
00h off
01h on
Return: nothing
Note: the 1993/04/08 sytem ROM appears to use BL instead of BH; a future
version of the list will provide more definite information
SeeAlso: AH=12h/BL=36h,AX=BF04h
--------b-10BF06-----------------------------
INT 10 - VIDEO - Compaq SLT/286 - READ GRAY SCALE TABLE
AX = BF06h
CL = address to be read from gray scale table
Return: AL = bit 3-0 - Value read from gray scale table
CL = address to be read from gray scale table
SeeAlso: AH=12h/BL=33h,AX=BF07h
--------b-10BF07-----------------------------
INT 10 - VIDEO - Compaq SLT/286 - WRITE GRAY SCALE TABLE
AX = BF07h
CH = value to write to gray scale table
CL = address to be written to gray scale table
Return: nothing
SeeAlso: AX=BF06h,AX=BF08h
--------b-10BF08-----------------------------
INT 10 - VIDEO - Compaq SLT/286 - WRITE COLOR MIX REGISTERS
AX = BF08h
CH = bits 7-4 green weight
bits 3-0 blue weight
CL = bits 7-4 unused
bits 3-0 red weight
Return: nothing
SeeAlso: AH=12h/BL=33h,AX=BF07h
--------b-10BF09-----------------------------
INT 10 - VIDEO - Compaq Extensions - TURN ON REVERSE VIDEO
AX = BF09h
Return: CF clear
Notes: sets bit 6 of port 03CEh index 81h; in some cases also sets index 84h
to 6Fh and index 83h to 04h
supported by at least the QVision board and the LTE Lite ROM BIOS
SeeAlso: AX=BF0Ah,AX=BF0Bh
--------b-10BF0A-----------------------------
INT 10 - VIDEO - Compaq Extensions - TURN OFF REVERSE VIDEO
AX = BF0Ah
Return: CF clear
Notes: clears bit 6 of port 03CEh index 81h; in some cases also sets index 84h
to 80h and index 83h to FBh
supported by at least the QVision board and the LTE Lite ROM BIOS
SeeAlso: AX=BF09h,AX=BF0Bh
--------b-10BF0B-----------------------------
INT 10 - VIDEO - Compaq Extensions - CHECK WHETHER VIDEO REVERSED
AX = BF0Bh
Return: CF clear
AX = state (0000h normal video, 0001h reverse video)
Note: supported by at least the QVision board and the LTE Lite ROM BIOS
SeeAlso: AX=BF09h,AX=BF0Ah
--------b-10BF0C-----------------------------
INT 10 - VIDEO - Compaq Extensions - SET DAC 6-BIT MODE
AX = BF0Ch
Return: CF clear
Desc: specify that video DAC registers use only six bits of color info
Note: supported by at least the QVision board and the SystemPro XL ROM BIOS
SeeAlso: AX=BF0Dh,AX=BF0Eh
--------b-10BF0D-----------------------------
INT 10 - VIDEO - Compaq Extensions - SET DAC 8-BIT MODE
AX = BF0Dh
Return: CF clear
Desc: specify that video DAC registers use all eight bits of color info
Note: supported by at least the QVision board and the SystemPro XL ROM BIOS
SeeAlso: AX=BF0Ch,AX=BF0Eh
--------b-10BF0E-----------------------------
INT 10 - VIDEO - Compaq Extensions - CHECK DAC 6-BIT/8-BIT mode
AX = BF0Eh
Return: CF clear
AL = DAC mode
00h in 6-bit mode
01h in 8-bit mode
Note: supported by at least the QVision board and the SystemPro XL ROM BIOS
SeeAlso: AX=BF0Ch,AX=BF0Dh
--------b-10BF0F-----------------------------
INT 10 - VIDEO - Compaq Extensions - SET HIGH ADRESS MAP REGISTER
AX = BF0Fh
BX = high address map location in megabytes, or
0000h to disable high address map, or
FFFFh to let ROM configure high address map
Return: CF clear
AX = previous value of high address map register
Notes: supported by at least the QVision board and the SystemPro XL and LTE
Lite ROM BIOSes
SeeAlso: AX=BF10h
--------b-10BF10-----------------------------
INT 10 - VIDEO - Compaq Extensions - GET HIGH ADDRESS MAP REGISTER
AX = BF10h
Return: CF clear
AX = current value of high address map register
Notes: supported by at least the QVision board and the SystemPro XL and LTE
Lite ROM BIOSes
the Compaq QVision documentation (October 1993) says the value is
returned in BX, but this appears to be one of many typos
SeeAlso: AX=BF0Fh
--------b-10BF11-----------------------------
INT 10 - VIDEO - Compaq Extensions - GET EXTENDED ENVIRONMENT
AX = BF11h
Return: AL = BFh if supported
CF clear
ES:DI -> ASCII signature "COMPAQ"
ES:SI -> advanced functionality table (see #00214)
Note: supported by at least the QVision board and the LTE Lite and ProSignia
ROM BIOSes
SeeAlso: AX=1A00h,AX=BF03h
Bitfields for Compaq advanced video functionality:
Bit(s) Description (Table 00214)
31 future graphics extensions (reserved, set to 0)
30-16 reserved
15-12 available video memory in 256K blocks, less one (0000 = 256K, etc.)
11-8 reserved
7 QVision modes supported
6 Advanced VGA modes supported
5 Accelerated VGA modes supported
4 standard VGA modes supported
3-2 reserved
1 132-column modes supported
0 reserved
--------b-10BF12-----------------------------
INT 10 - VIDEO - Compaq Extensions - NEW ACTIVE MONITOR
AX = BF12h
BH reserved
BL = function mask (see #00215)
Return: CF clear
Notes: this function is a NOP if the VGA subsystem is inactive or the current
Display Combination Code is 10h or higher
supported by at least the QVision board and the LTE Lite and ProSignia
ROM BIOSes
SeeAlso: AX=BF01h,AX=BF02h,#00733
Bitfields for function mask:
Bit(s) Description (Table 00215)
7 command mode
if set, bits 1 and 0 make the monitor active when set
if clear, bits 1 and 0 toggle the monitor's state when set
6-2 reserved
1 internal monitor
0 external monitor
--------b-10BF13-----------------------------
INT 10 - VIDEO - Compaq QVision - GAMMA CORRECTION
AX = BF13h
BL = subfunction
00h load gamma correction table for true-color mode
DS = BIOS data segment
01h set palette RAM bypass
BH = 00h
Return: nothing
Note: these functions must be called after a video mode set, and are in
effect only for the current video mode
SeeAlso: #00733
--------V-10BFA0BXADAD-----------------------
INT 10 - VIDEO - Compaq ADAPT.COM - INSTALLATION CHECK
AX = BFA0h
BX = ADADh
Return: AX = BDBDh if newer ADAPT.COM installed
BX = BCD version (BH = major, BL = minor)
CL = ???
CH = ???
DL = ???
AX = ADADh if older version of ADAPT.COM installed
Program: ADAPT is Compaq's Advanced Display Attribute Programming Tool, an
optionally-resident utility for setting display colors and cursor
size; when resident, it also includes a screen blanker
SeeAlso: AX=BFA1h,AX=BFA2h,AX=DFA5h
Index: screen saver;ADAPT
--------V-10BFA1-----------------------------
INT 10 - VIDEO - Compaq ADAPT.COM - GET ???
AX = BFA1h
Return: AX = BDBEh if supported
CH = current value of ???
DL = current value of ???
SeeAlso: AX=BFA0h,AX=BFA2h
--------V-10BFA2-----------------------------
INT 10 - VIDEO - Compaq ADAPT.COM - SET ???
AX = BFA2h
CH = new value for ???
DL = new value for ???
Return: AX = BDBEh if supported
SeeAlso: AX=BFA0h,AX=BFA1h
--------A-10C0-------------------------------
INT 10 - CU Writer v1.4 - GO TO TEXT ROW AND COLUMN
AH = C0h
???
Return: ???
SeeAlso: AH=B1h,AH=C1h,AH=C2h,AH=C3h,AH=C4h
--------V-10C000-----------------------------
INT 10 - S3 SpeedUp v3.00+ - INSTALLATION CHECK
AX = C000h
Return: AX = FFFFh if installed
DX = version number (binary, DH=major, DL=minor)
BX = resident code segment
Program: S3SPDUP is a freeware TSR by Dietmar Meschede to improve the speed
of chained video modes (both VESA and VGA Mode 13) on S3-chipset
video cards
SeeAlso: AX=C001h,AX=C002h,AX=C003h,AX=D000h"S3VBE"
--------V-10C001-----------------------------
INT 10 - S3 SpeedUp v3.00+ - GET ACTIVE OPTIONS
AX = C001h
Return: AX = FFFFh if function supported
BX = currently active options (see #00216)
SeeAlso: AX=C000h,AX=C002h,AX=C003h
Bitfields for S3SpeedUp options:
Bit(s) Description (Table 00216)
0 speed up banked VESA modes
1 speed up 320x200 VGA mode 13
SeeAlso: #00222
--------V-10C002-----------------------------
INT 10 - S3 SpeedUp v3.00+ - SET ACTIVE OPTIONS
AX = C002h
BX = new value for active options (see #00216)
Return: AX = FFFFh if function supported
SeeAlso: AX=C000h,AX=C001h,AX=C003h,AX=D003h"S3VBE"
--------V-10C003-----------------------------
INT 10 - S3 SpeedUp v3.10+ - GET FLAGS
AX = C003h
Return: AX = FFFFh if function supported
BX = flags
bit 0: SpeedUp is active
bit 1: Windows run after SpeedUp
SeeAlso: AX=C000h,AX=C001h,AX=C002h,AX=D005h"S3VBE"
--------V-10C004-----------------------------
INT 10 - S3 SpeedUp v3.10+ - RESERVED FUNCTIONS
AX = C004h-C0FFh
Return: AX = 5555h
SeeAlso: AX=C000h
--------A-10C1-------------------------------
INT 10 - CU Writer v1.4 - OUTPUT TEXT
AH = C1h
???
Return: ???
SeeAlso: AH=C0h,AH=C2h,AH=C3h,AH=C4h
--------A-10C2-------------------------------
INT 10 - CU Writer v1.4 - REVERSE TEXT
AH = C2h
???
Return: ???
SeeAlso: AH=C0h,AH=C1h,AH=C3h,AH=C4h
--------A-10C3-------------------------------
INT 10 - CU Writer v1.4 - TEXT BAR
AH = C3h
???
Return: ???
SeeAlso: AH=C0h,AH=C1h,AH=C4h
--------A-10C4-------------------------------
INT 10 - CU Writer v1.4 - TEXT MENU
AH = C4h
???
Return: ???
SeeAlso: AH=C0h,AH=C1h,AH=C3h,AH=D0h
--------V-10CB00-----------------------------
INT 10 - UNCHAIN - SAVE CURRENT VGA REGISTERS
AX = CB00h
Note: combined with AX=CB06h, this function permits the use of video mode
13h together with the VGA's unchained mode
SeeAlso: AX=CB06h,AX=CBFFh
--------V-10CB01-----------------------------
INT 10 - UNCHAIN - UPDATE PAGE 1 OFFSET
AX = CB01h
BX = offset of page 1
Return: nothing
Desc: inform UNCHAIN of the location of video page 1 in video memory; the
default is 0000h
SeeAlso: AX=CB02h,AX=CB03h,AX=CB04h,AX=CBFFh
--------V-10CB02-----------------------------
INT 10 - UNCHAIN - UPDATE PAGE 2 OFFSET
AX = CB02h
BX = offset of page 2
Return: nothing
Desc: inform UNCHAIN of the location of video page 2 in video memory; the
default is 3E80h (16000, for 320x200)
SeeAlso: AX=CB00h,AX=CB01h,AX=CB03h,AX=CB04h
--------V-10CB03-----------------------------
INT 10 - UNCHAIN - UPDATE PAGE 3 OFFSET
AX = CB03h
BX = offset of page 3
Return: nothing
Desc: inform UNCHAIN of the location of video page 3 in video memory; the
default is 7D00h (32000, for 320x200)
SeeAlso: AX=CB01h,AX=CB02h,AX=CB04h
--------V-10CB04-----------------------------
INT 10 - UNCHAIN - UPDATE PAGE 4 OFFSET
AX = CB04h
BX = offset of page 4
Return: nothing
Desc: inform UNCHAIN of the location of video page 4 in video memory; the
default is BB80h (48000, for 320x200)
SeeAlso: AX=CB01h,AX=CB02h,AX=CB03h,AX=CB05h
--------V-10CB05-----------------------------
INT 10 - UNCHAIN - SAVE PALETTE
AX = CB05h
Return: nothing
SeeAlso: AX=CB00h,AX=CB06h
--------V-10CB06-----------------------------
INT 10 - UNCHAIN - RESTORE VGA REGISTERS
AX = CB06h
Return: nothing
SeeAlso: AX=CB00h,AX=CB05h,AX=CBFFh
--------V-10CBFF-----------------------------
INT 10 - UNCHAIN - INSTALLATION CHECK
AX = CBFFh
Return: AX = CCBBh if installed
Program: UNCHAIN is a TSR by Colin Buckley which permits use of Borland
development tools with Mode X video in the absence of a second
monitor
SeeAlso: AX=CB00h,AX=CB01h,AX=CB06h
--------V-10CC00-----------------------------
INT 10 - VIDEO - UltraVision - GET STATUS (INSTALLATION CHECK)
AX = CC00h
SI = magic value 0000h (if checking version)
Return: CX = product signature
ABCDh UltraVision
5546h ('UF') UltraFont
AL = Ultravision extensions
00h enabled
FFh disabled
AH = card designator
BX:00F0h -> palette values (for compatibility with NEWFONT)
DX = support for high resolution modes
00h not active
01h active
SI = UltraVision version number (v1.2+), high byte=major,low byte=minor
unchanged for versions <1.2
Note: UltraFont is a simplified version of UltraVision for Toshiba;
only the signature in CX and the status in AL will be returned
SeeAlso: AX=CC01h,AX=CC02h
--------V-10CC01-----------------------------
INT 10 - VIDEO - UltraVision - DISABLE EXTENSIONS
AX = CC01h
Return: nothing
Notes: subsequent BIOS calls will be passed through to previous handler
should be followed immediately by mode set to restore normal EGA/VGA
state
SeeAlso: AX=CC02h
--------V-10CC02-----------------------------
INT 10 - VIDEO - UltraVision - ENABLE EXTENSIONS
AX = CC02h
Return: nothing
Note: should be followed immediately by mode set to restore previous
UltraVision state
SeeAlso: AX=CC01h
--------U-10CCAB-----------------------------
INT 10 - HiFont - INSTALLATION CHECK
AX = CCABh
Return: AX = ABCCh
Program: HiFont is a 8x19 font driver for standard VGA by Solar Designer
--------V-10CD00-----------------------------
INT 10 - VIDEO - UltraVision - LOAD ULTRAVISION PALETTE (color EGA,VGA)
AX = CD00h
CL = palette table number (01h-07h for v1.x, 01h-0Fh for v2+)
DS:DX -> 16-byte palette register list (colors for registers 00h-0Fh)
Return: nothing
Notes: if palette locking is in effect for the current mode, the new colors
will be displayed immediately; otherwise, the system reverts to the
default palette
palette table 0 is reserved for the default palette and cannot be set
UltraVision always sets the border color to black
SeeAlso: AX=CD01h,AX=CD02h
--------V-10CD01-----------------------------
INT 10 - VIDEO - UltraVision - SET PALETTE LOCKING STATUS (color EGA,VGA)
AX = CD01h
CL = palette locking value
00h none
01h text modes only (02h,03h)
FFh all modes (all standard color text and graphics modes)
Return: nothing
Notes: intended for video modes with 16 or fewer colors
SeeAlso: AX=1000h,AX=1002h,AX=CD00h,AX=CD03h
--------V-10CD02-----------------------------
INT 10 - VIDEO - UltraVision - GET ULTRAVISION PALETTE (EGA,VGA)
AX = CD02h
Return: CL = palette table number
DS:DX -> 17-byte palette register list (see #00217)
DS:SI -> current font names table (see #00218,#00219)
Note: only the font names are valid on monochrome EGA systems
SeeAlso: AX=1009h,AX=CD00h
Format of UltraVision palette register list:
Offset Size Description (Table 00217)
00h 16 BYTEs colors for palette registers 00h through 0Fh
10h BYTE border color
Format of UltraVision v2+ current font names table:
Offset Size standard EGA HiRes EGA VGA (Table 00218)
00h 8 BYTEs N/A F19 font F20 font
08h 8 BYTEs F14 font F14 font F14 font
10h 8 BYTEs N/A F11 font F10 font
18h 8 BYTEs F8 font F8 font F8 font
Format of UltraVision v1.x current font names table:
Offset Size HiRes EGA (Table 00219)
00h 8 BYTEs F19/F14 font
08h 8 BYTEs F11/F8 font
--------V-10CD03-----------------------------
INT 10 - VIDEO - UltraVision - GET PALETTE LOCKING STATUS (color EGA,VGA)
AX = CD03h
Return: CL = palette locking value
00h none
01h text modes only
FFh all modes
SeeAlso: AX=CD01h
--------V-10CD04-----------------------------
INT 10 - VIDEO - UltraVision - GET UltraVision TEXT MODE (EGA,VGA)
AX = CD04h
Return: AL = mode number (see #00220)
SeeAlso: AH=0Fh,AX=CC00h,AH=CDh
(Table 00220)
Values for UltraVision video mode number:
11h 80x25
12h 80x43, 80x50
13h 80x34, 80x36
14h 80x60, 80x63
19h 94x25
1Ah 94x43, 94x50
1Bh 94x36
1Ch 94x63
21h 108x25
22h 108x43, 108x50
23h 107x34, 108x36
24h 108x60, 108x63
31h 120x25
32h 120x43, 120x50
33h 132x25
34h 132x44, 132x50
39h 120x36
3Ah 120x63
3Bh 132x36
3Ch 132x60
Index: video modes;UltraVision
--------V-10CD05-----------------------------
INT 10 - VIDEO - UltraVision - SET CURSOR TYPE (EGA,VGA)
AX = CD05h
CL = type
00h line cursor
FFh box cursor
Return: nothing
Note: sets default cursor type for text-based programs
SeeAlso: AH=01h,AX=CD06h
--------V-10CD06-----------------------------
INT 10 - VIDEO - UltraVision - GET CURSOR TYPE (EGA,VGA)
AX = CD06h
Return: CL = type
00h line cursor
FFh box cursor
SeeAlso: AH=03h,AX=CD05h
--------V-10CD07-----------------------------
INT 10 - VIDEO - UltraVision v1.2+ - SET UNDERLINE STATUS (EGA,VGA)
AX = CD07h
CL = hardware underline status (see #00221)
BL = foreground color for normal text (FFh = current)
BH = foreground color for bright text (FFh = current)
Return: CL = hardware underline status
BL = current foreground color for normal text
BH = current foreground color for bright text
Notes: when underline or strikeout is enabled in color text modes, the
specified colors will be assigned temporarily to colors 01h and 09h,
allowing affected text to match non-underlined text. The color
remapping uses values from the current onscreen palette regardless
of the palette locking status (see AX=CD01h)
specify the standard colors (BL=01h,BH=09h) to enable underline or
strikeout without color remapping
SeeAlso: AX=CD08h
(Table 00221)
Values for hardware underline status:
00h off (color systems only)
01h underline below characters
02h strike through characters
--------V-10CD08-----------------------------
INT 10 - VIDEO - UltraVision v1.2+ - GET UNDERLINE STATUS (EGA,VGA)
AX = CD08h
Return: CL = hardware underline status (see #00221)
BL = foreground color for normal text
BH = foreground color for bright text
Note: only CL is valid on monochrome EGA systems
SeeAlso: AX=CD07h
--------V-10CD0F-----------------------------
INT 10 - VIDEO - UltraVision - GET POINTER TO ??? (EGA,VGA)
AX = CD0Fh
Return: DS:DI -> pointer to ???
Note: This gets called by DR DOS "Panther" SECURITY. SECURITY also issues a
number of calls to the other UltraVision functions in the AH=CCh and
AH=CDh range, and carefully checks signatures.
SeeAlso: AX=1100h,AX=1103h
--------V-10CD10-----------------------------
INT 10 - VIDEO - UltraVision - LOAD USER FONT (EGA,VGA)
AX = CD10h
BH = bytes per character (08h,0Ah,0Bh,0Eh,13h,14h)
CX = ABCDh load 9xN alternate font (v2+)
else number of characters to load
DX = character offset into font table
DS:SI -> 8-byte ASCII font name
ES:BP -> font definitions
Return: AX = FFFFh if invalid font parameters
Notes: loads the designated characters into UltraVision's resident font area
should be followed by a video mode set to reload character generator
SeeAlso: AX=1100h,AX=1103h
--------V-10CD-------------------------------
INT 10 - VIDEO - UltraVision - SET ULTRAVISION TEXT MODE (EGA,VGA)
AH = CDh
AL = text mode number (see #00220)
Return: AX = CDCDh if invalid mode
SeeAlso: AX=CD04h
--------A-10D0-------------------------------
INT 10 - CU Writer v1.4 - LOAD PICTURE
AH = D0h
???
Return: ???
SeeAlso: AH=B0h"CU Writer",AH=C4h
--------V-10D0-------------------------------
INT 10 U - VIDEO - HP 100LX/200LX - SET ZOOM MODE
AH = D0h
AL = zoom mode
02h 80x25 mono
03h 80x25 color
80h 64x18 mono
81h 64x18 color
82h 40x25 mono
83h 40x25 color
84h 40x16 mono
85h 40x16 color
Return: nothing
Note: zoom mode can only be changed within zoom modes of the same color
scheme; if needed, set to mono/color with AH=00h,AL=02h/03h; with
mono video modes AL=07h or AL=21h only 80x25 and 40x16 will work
the current zoom mode is stored in the BIOS data area at 0040h:009Fh
SeeAlso: AH=D1h,AH=D4h
--------V-10D000-----------------------------
INT 10 - S3VBE/Core2.0 v3.00+ - INSTALLATION CHECK
AX = D000h
Return: AX = FFFFh if installed
BX = resident code segment
DX = version (binary, DH = major, DL = minor)
Program: S3VBE/Core2.0 is a freeware TSR by Dietmar Meschede to provide
VESA 2.0 services on S3-based video cards with VESA 1.2 BIOS
SeeAlso: AX=D001h"S3VBE",AX=D002h"S3VBE",AX=D003h"S3VBE",AX=D005h"S3VBE"
--------V-10D001-----------------------------
INT 10 - S3VBE/Core2.0 v3.00+ - GET ACTIVE OPTIONS
AX = D001h
Return: AX = FFFFh if supported
BX = currently active options (see #00222)
SeeAlso: AX=D000h"S3VBE",AX=D002h"S3VBE"
Bitfields for S3VBE options:
Bit(s) Description (Table 00222)
0 VESA VBE v2.0 extensions enabled
1 linear frame buffer enabled
2 low-resolution video mode support enabled
8 never clear video memory during VBE mode set (v3.10+)
---debug options---
12 report VBE version 1.2 (v3.10+)
13 always fail AX=4F0Ah (v3.10+)
14 don't copy video mode list (v3.12+)
SeeAlso: #00216
--------V-10D002-----------------------------
INT 10 - S3VBE/Core2.0 v3.00+ - SET ACTIVE OPTIONS
AX = D002h
BX = new active options (see #00222)
Return: AX = FFFFh if supported
SeeAlso: AX=D000h"S3VBE",AX=D001h"S3VBE"
--------V-10D003-----------------------------
INT 10 U - S3VBE/Core2.0 v3.10+ - GET VBE/Core CAPABILITIES
AX = D003h
Return: AX = FFFFh if supported
BX = capabilities
bit 0: SpeedUp = activate/deactivate linear addressing at
A0000h for VBE functions 04h/05h
SeeAlso: AX=D000h"S3VBE",AX=D001h"S3VBE",AX=D004h"S3VBE",AX=D005h"S3VBE"
--------V-10D004-----------------------------
INT 10 U - S3VBE/Core2.0 v3.10+ - ACTIVATE SPEED-UP
AX = D004h
Return: AX = FFFFh if supported
BX = status
0000h SpeedUp activated
0001h SpeedUp not possible (wrong memory organization for mode)
0002h SpeedUp not possible (linear frame buffer active)
Note: called by S3 SpeedUp (see AX=C000h)
SeeAlso: AX=C000h"SpeedUp",AX=D000h"S3VBE",AX=D003h"S3VBE",AX=D005h"S3VBE"
--------V-10D005-----------------------------
INT 10 U - S3VBE/Core2.0 v3.10+ - DEACTIVATE SPEED-UP
AX = D005h
Return: AX = FFFFh if supported
BX = status
0000h SpeedUp deactivated
0001h SpeedUp not possible (wrong memory organization for mode)
0002h SpeedUp not possible (linear frame buffer active)
Notes: called by S3 SpeedUp (see AX=C000h)
functions 06h-FFh (e.g. AX=D006h-D0FFh) are considered reserved by
v3.10+ and return AX=5555h
SeeAlso: AX=C000h"SpeedUp",AX=D000h"S3VBE",AX=D003h"S3VBE",AX=D004h"S3VBE"
--------V-10D1-------------------------------
INT 10 U - VIDEO - HP 100LX/200LX - INTERNAL - ???
AH = D1h
AL = 01h
Return: ???
Note: called by AH=D0h
SeeAlso: AH=D0h,AH=D4h
--------V-10D4-------------------------------
INT 10 U - VIDEO - HP 100LX/200LX - INTERNAL - ???
AH = D4h
AL = 29h
Return: ???
Note: called by AH=D0h
SeeAlso: AH=D0h,AH=D1h
--------V-10D5-------------------------------
INT 10 - Netroom SCRNCLK - ???
AH = D5h
???
Return: ???
Program: SCRNCLK is a "cloaked" screen accelerator included with Netroom
--------t-10DAAD-----------------------------
INT 10 - TSRUNIT v1.10 - INSTALLATION CHECK
AX = DAADh
BX = check signature (different for each TSR)
CX = 0000h
Return: CX = return signature (nonzero) if installed
ES = program segment prefix
Program: TSRUNIT is a Turbo Pascal unit for creating TSRs by Nir Sofer
--------V-10DFA5-----------------------------
INT 10 U - VIDEO - Compaq ADAPT.COM - GET ??? DATA AREA
AX = DFA5h
Return: AX = BDBFh if supported
ES:DI -> ??? data area
BX = ES
SeeAlso: AX=BFA0h
--------V-10EE-------------------------------
INT 10 - VIDEO - IBM "Private" Function
AH = EEh
SeeAlso: INT 13/AH=FFh"IBM"
--------V-10EF-------------------------------
INT 10 - VIDEO - MSHERC.COM - GET VIDEO ADAPTER TYPE AND MODE
AH = EFh
Return: DL = video adapter type
00h original Hercules
01h Hercules Plus (port 03BAh reads x001xxxxx)
02h Hercules InColor (port 03BAh reads x101xxxxx)
FFh not a Hercules-compatible card (port 03BAh bit 7 not pulsing)
DH = memory mode byte
00h "half" mode
01h "full" mode
FFh not a Hercules-compatible card
Program: MSHERC.COM/QBHERC.COM is a support program for the Microsoft Quick
languages which makes their graphics libraries compatible with a
Hercules card by adding video modes 08h and 88h, and supporting
text in the new graphics modes.
Notes: while in mode 08h or 88h, INT 10 supports the Hercules card much like
a CGA.
MSHERC performs an installation check by setting DL=FFh and testing
whether it has been changed on return, which causes it to reinstall
itself when no HGC is present (or HGC emulation has temporarily been
disabled); a better installation check would be to use DX=80FFh and
check whether DX has been changed
reportedly returns DH=00h on some not-entirely-Hercules-compatible
cards
Index: installation check;MSHERC
--------V-10F0-------------------------------
INT 10 - EGA Register Interface Library - READ ONE REGISTER
AH = F0h
BL = register number
BH = 00h
DX = group index (see #00223)
Return: BL = data
Note: the RIL is provided by EGA.SYS, the Microsoft Mouse driver, the OS/2
compatibility box, and others; it is used for software virtualization
of write-only registers on an EGA video adapter, so that multiple
programs may peacefully coexist without clobbering each other's
display settings
SeeAlso: AH=F1h"EGA",AH=F2h"EGA",AH=FAh"EGA",INT 2F/AX=BC00h
(Table 00223)
Values for group index:
Pointer/data chips
00h CRT Controller (25 reg) 3B4h mono modes, 3D4h color modes
08h Sequencer (5 registers) 3C4h
10h Graphics Controller (9 registers) 3CEh
18h Attribute Controller (20 registers) 3C0h
Single registers
20h Miscellaneous Output register 3C2h
28h Feature Control register (3BAh mono modes, 3DAh color modes)
30h Graphics 1 Position register 3CCh
38h Graphics 2 Position register 3CAh
--------V-10F0-------------------------------
INT 10 - VHRBIOS.SYS - INSTALLATION CHECK
AH = F0h
Return: BX = 4F4Bh ('OK')
Program: VHRBIOS.SYS is a driver for the Micro Display Systems "TheGenius"
black&white A4/portrait monitor
SeeAlso: AH=F1h"VHRBIOS.SYS",AH=F2h"VHRBIOS.SYS",AH=F4h"VHRBIOS.SYS"
SeeAlso: AH=96h"VHRBIOS.SYS"
--------V-10F1-------------------------------
INT 10 - EGA Register Interface Library - WRITE ONE REGISTER
AH = F1h
DX = group index (see #00223)
if single register:
BL = value to write
otherwise
BL = register number
BH = value to write
Return: BL = data
Note: the RIL is provided by EGA.SYS, the Microsoft Mouse driver, the OS/2
compatibility box, and others
SeeAlso: AX=7F05h,AH=F0h"EGA",AH=F3h"EGA",AH=FAh"EGA"
--------V-10F1-------------------------------
INT 10 - VHRBIOS.SYS - SET REVERSE VIDEO
AH = F1h
AL = new video state
(bit 5 set for black text on white, clear for white on black)
Return: ???
Program: VHRBIOS.SYS is a driver for the Micro Display Systems "TheGenius"
black&white A4/portrait monitor
SeeAlso: AH=F0h"VHRBIOS.SYS",AH=F3h"VHRBIOS.SYS"
--------V-10F2-------------------------------
INT 10 - EGA Register Interface Library - READ REGISTER RANGE
AH = F2h
CH = starting register number
CL = number of registers (>1)
DX = group index (00h,08h,10h,18h) (see #00223)
ES:BX -> buffer, CL bytes
Return: nothing
Note: the RIL is provided by EGA.SYS, the Microsoft Mouse driver, the OS/2
compatibility box, and others
SeeAlso: AH=F0h"EGA",AH=F3h"EGA",AH=FAh"EGA"
--------V-10F2-------------------------------
INT 10 - VHRBIOS.SYS - ???
AH = F2h
Return: ???
Program: VHRBIOS.SYS is a driver for the Micro Display Systems "TheGenius"
black&white A4/portrait monitor
SeeAlso: AH=F0h"VHRBIOS.SYS",AH=F4h"VHRBIOS.SYS"
--------V-10F3-------------------------------
INT 10 - EGA Register Interface Library - WRITE REGISTER RANGE
AH = F3h
CH = starting register
CL = number of registers (>1)
DX = group index (00h,08h,10h,18h) (see #00223)
ES:BX -> buffer, CL bytes
Return: nothing
Note: the RIL is provided by EGA.SYS, the Microsoft Mouse driver, the OS/2
compatibility box, and others
SeeAlso: AX=7F05h,AH=F1h"EGA",AH=F2h"EGA",AH=F4h"EGA"
--------V-10F3-------------------------------
INT 10 - VHRBIOS.SYS - SWITCH BETWEEN DUAL MONITORS???
AH = F3h
Return: ???
Program: VHRBIOS.SYS is a driver for the Micro Display Systems "TheGenius"
black&white A4/portrait monitor
SeeAlso: AH=F0h"VHRBIOS.SYS",AH=F4h"VHRBIOS.SYS",AH=F6h"VHRBIOS.SYS"
--------V-10F4-------------------------------
INT 10 - EGA Register Interface Library - READ REGISTER SET
AH = F4h
CX = number of registers to read (>1)
ES:BX -> table of register records (see #00224)
Return: register values in table filled in
Note: the RIL is provided by EGA.SYS, the Microsoft Mouse driver, the OS/2
compatibility box, and others
SeeAlso: AH=F0h"EGA",AH=F2h"EGA",AH=F5h"EGA"
Format of EGA RIL entries in table of register records:
Offset Size Description (Table 00224)
00h WORD group index
Pointer/data chips
00h CRTC (3B4h mono modes, 3D4h color modes)
08h Sequencer 3C4h
10h Graphics Controller 3CEh
18h Attribute Controller 3C0h
Single registers
20h Miscellaneous Output register 3C2h
28h Feature Control register (3BAh mono modes, 3DAh color)
30h Graphics 1 Position register 3CCh
38h Graphics 2 Position register 3CAh
02h BYTE register number (0 for single registers)
03h BYTE register value
--------V-10F4-------------------------------
INT 10 - VHRBIOS.SYS - GET VERSION
AH = F4h
Return: AX = driver version (AH = major, AL = minor)
Program: VHRBIOS.SYS is a driver for the Micro Display Systems "TheGenius"
black&white A4/portrait monitor
SeeAlso: AH=F0h"VHRBIOS.SYS",AH=F5h"VHRBIOS.SYS"
--------V-10F5-------------------------------
INT 10 - EGA Register Interface Library - WRITE REGISTER SET
AH = F5h
CX = number of registers to write (>1)
ES:BX -> table of records (see #00224)
Return: nothing
Note: the RIL is provided by EGA.SYS, the Microsoft Mouse driver, the OS/2
compatibility box, and others
SeeAlso: AX=7F05h,AH=F1h"EGA",AH=F3h"EGA",AH=F4h"EGA"
--------V-10F5-------------------------------
INT 10 - VHRBIOS.SYS - GET VENDOR ID
AH = F5h
Return: AXBX = vendor ID (4D44h:5349h = 'MDSI' for Micro Display Systems Inc.)
Program: VHRBIOS.SYS is a driver for the Micro Display Systems "TheGenius"
black&white A4/portrait monitor
SeeAlso: AH=F0h"VHRBIOS.SYS",AH=F4h"VHRBIOS.SYS",AH=F6h"VHRBIOS.SYS"
--------V-10F6-------------------------------
INT 10 - EGA Register Interface Library - REVERT TO DEFAULT REGISTERS
AH = F6h
Return: nothing
Note: provided by the Microsoft Mouse driver, OS/2 compatibility box, and
others
SeeAlso: AH=F5h"EGA",AH=F7h"EGA"
--------V-10F6-------------------------------
INT 10 - VHRBIOS.SYS - GET INFO
AH = F6h
AL = what to get
00h device driver state
Return: AX = device driver state
01h video mode info
Return: AL = video mode
DH = screen height in rows
DL = screen width in columns
Program: VHRBIOS.SYS is a driver for the Micro Display Systems "TheGenius"
black&white A4/portrait monitor
SeeAlso: AH=F0h"VHRBIOS.SYS",AH=F4h"VHRBIOS.SYS",AH=96h"VHRBIOS.SYS
--------V-10F7-------------------------------
INT 10 - EGA Register Interface Library - DEFINE DEFAULT REGISTER TABLE
AH = F7h
DX = port number
Pointer/data chips
00h CRTC (3B4h mono modes, 3D4h color modes)
08h Sequencer 3C4h
10h Graphics Controller 3CEh
18h Attribute Controller 3C0h
Single registers
20h Miscellaneous Output register 3C2h
28h Feature Control register (3BAh mono modes, 3DAh color modes)
30h Graphics 1 Position register 3CCh
38h Graphics 2 Position register 3CAh
ES:BX -> table of one-byte entries, one byte to be written to each
register
Return: nothing
Note: the RIL is provided by EGA.SYS, the Microsoft Mouse driver, the OS/2
compatibility box, and others
SeeAlso: AH=F0h"EGA",AH=F6h"EGA"
--------V-10FA--BX0000-----------------------
INT 10 - EGA Register Interface Library - INTERROGATE DRIVER
AH = FAh
BX = 0000h
Return: BX = 0000h if RIL driver not present
ES:BX -> EGA Register Interface version number, if present:
byte 0 = major release number
byte 1 = minor release number
Note: the RIL is provided by EGA.SYS, the Microsoft Mouse driver, the OS/2
compatibility box, and others
SeeAlso: AH=F0h"EGA",AH=F6h"EGA",INT 2F/AX=BC00h
--------K-10FA-------------------------------
INT 10 - FASTBUFF.COM - INSTALLATION CHECK
AH = FAh
Return: AX = 00FAh if installed
ES = segment of resident code
Program: FASTBUFF.COM is a keyboard speedup/screen blanking utility by David
Steiner
Index: screen saver;FASTBUFF
--------V-10FE-------------------------------
INT 10 - TopView - GET SHADOW BUFFER
AH = FEh
ES:DI -> assumed video buffer
B800h:0000h color text/CGA graphics, B000h:0000h mono text,
or A000h:0000h EGA/VGA graphics (RSIS environments only)
Return: ES:DI -> actual video buffer for calling process
Desc: Determine the address of the virtual screen to which the program
should write instead of the actual video memory; this permits
programs to be multitasked without interfering with each other's
output, and allows memory managers to move the video memory to
permit larger programs to be loaded.
Notes: if no multitasker or RSIS-compliant environment is installed, ES:DI is
returned unchanged; RSIS is the Relocated Screen Interface
Specification
for display pages other than 0, use AH=05h and AH=0Fh to determine
whether a particular page exists
TopView requires a call to AH=FFh to notify it that the screen has
changed; DESQview will check for changes itself until the first call
to AH=FFh
SeeAlso: AH=05h,AX=5201h,AH=FFh,INT 15/AX=1024h,INT 21/AH=2Bh"DESQview"
SeeAlso: INT 21/AH=ECh"DoubleDOS"
--------V-10FF-------------------------------
INT 10 - TopView - UPDATE SCREEN FROM SHADOW BUFFER
AH = FFh
CX = number of consecutive changed characters
ES:DI -> first changed character in shadow buffer
Return: nothing
Notes: avoid CX=0000h
DESQview will discontinue the automatic screen updating initiated by
AH=FEh after this call
not supported (ignored) by DESQview/X 1.0x
SeeAlso: AH=93h,AH=FEh
--------E-10FF-------------------------------
INT 10 - DJ GO32.EXE 80386+ DOS extender - VIDEO EXTENSIONS
AH = FFh
AL = video mode (see #00225)
Program: GO32.EXE is a DOS extender included as part of the 80386 port of the
GNU C/C++ compiler by DJ Delorie and distributed as DJGPP
SeeAlso: AH=00h,INT 21/AH=FFh"GO32"
(Table 00225)
Values for GO32 video mode number:
00h 80x25 text
01h default text
02h CXxDX text
03h biggest text
04h 320x200 graphics
05h default graphics
06h CXxDX graphics
07h biggest non-interlaced graphics
08h biggest graphics
Index: video modes;GO32
--------V-10FF-------------------------------
INT 10 - VIDEO - Oak VGA BIOS v1.02+ - SET EMULATION
AH = FFh
AL = emulation
43h ('C') CGA emulation
45h ('E') EGA emulation
4Dh ('M') Hercules emulation
56h ('V') VGA emulation
ES:DI -> signature string "Calamity"
Return: VGA switched to suggested mode
SeeAlso: AH=00h,AX=007Fh/BH=00h,AX=007Fh/BH=02h,AX=5F01h
--------R-10FF00-----------------------------
INT 10 - CARBON COPY PLUS v5.0 - CHECK IF CC CONNECTED TO CCHELP
AX = FF00h
Return: BL = state
00h not connected
01h connected
SeeAlso: AX=FF01h,AX=FF02h
--------R-10FF01-----------------------------
INT 10 - CARBON COPY PLUS v5.0 - DISCONNECT AND RESET LINE
AX = FF01h
Return: nothing
SeeAlso: AX=FF00h,AX=FF02h
--------R-10FF02-----------------------------
INT 10 - CARBON COPY PLUS v5.0 - GET LAST PHONE NUMBER DIALED
AX = FF02h
Return: ES:DI -> ASCIZ phone number
SeeAlso: AX=FF00h,AX=FF01h
--------C-11---------------------------------
INT 11 - CPU-generated (80486+) - ALIGNMENT CHECK
Desc: automatically generated by the CPU when the AC flag is set, the current
privilege level is 3, and a misaligned memory access (WORD not on an
even address or DWORD not on a multiple of 4) is made
Note: not all V86 monitors allow the AC flag to be set, such as Turbo
Debugger 386
SeeAlso: INT 12"CPU"
--------B-11---------------------------------
INT 11 - BIOS - GET EQUIPMENT LIST
Return: (E)AX = BIOS equipment list word (see #00226,#03215 at INT 4B"Tandy")
Note: since older BIOSes do not know of the existence of EAX, the high word
of EAX should be cleared before this call if any of the high bits
will be tested
SeeAlso: INT 4B"Tandy 2000",MEM 0040h:0010h
Bitfields for BIOS equipment list:
Bit(s) Description (Table 00226)
0 floppy disk(s) installed (number specified by bits 7-6)
1 80x87 coprocessor installed
3-2 number of 16K banks of RAM on motherboard (PC only)
number of 64K banks of RAM on motherboard (XT only)
2 pointing device installed (PS)
3 unused (PS)
5-4 initial video mode
00 EGA, VGA, or PGA
01 40x25 color
10 80x25 color
11 80x25 monochrome
7-6 number of floppies installed less 1 (if bit 0 set)
8 DMA support installed (PCjr, Tandy 1400LT)
DMA support *not* installed (Tandy 1000's)
11-9 number of serial ports installed
12 game port installed
13 serial printer attached (PCjr)
internal modem installed (PC/Convertible)
15-14 number of parallel ports installed
---Compaq, Dell, and many other 386/486 machines--
23 page tables set so that Weitek coprocessor addressable in real mode
24 Weitek math coprocessor present
---Compaq Systempro---
25 internal DMA parallel port available
26 IRQ for internal DMA parallel port (if bit 25 set)
0 = IRQ5
1 = IRQ7
28-27 parallel port DMA channel
00 DMA channel 0
01 DMA channel 0 ???
10 reserved
11 DMA channel 3
Notes: Some implementations of Remote (Initial) Program Loader (RPL/RIPL)
don't set bit 0 to indicate a "virtual" floppy drive, although the
RPL requires access to its memory image through a faked drive A:.
This may have caused problems with releases of DOS 3.3x and earlier,
which assumed A: and B: to be invalid drives then and would discard
any attempts to access these drives. Implementations of RPL should
set bit 0 to indicate a "virtual" floppy.
The IBM PC DOS 3.3x-2000 IBMBIO.COM contains two occurences of code
sequences like:
INT 11h
JMP SHORT skip
DB 52h,50h,53h; "RPS"
skip: OR AX,1
TEST AX,1
While at the first glance this seems to be a bug since it just
wastes memory and the condition is always true, this could well be
a signature for an applyable patch to stop it from forcing AX bit 0
to be always on. MS-DOS IO.SYS does not contain these signatures,
however.
BUGs: Some old BIOSes didn't properly report the count of floppy drives
installed to the system. In newer systems INT 13h/AH=15h can be
used to retrieve the number of floppy drives installed.
Award BIOS v4.50G and v4.51PG erroneously set bit 0 even if there are
no floppy drives installed; use two calls to INT 13/AH=15h to
determine whether any floppies are actually installed
SeeAlso: INT 12"BIOS",#03215 at INT 4B"Tandy 2000"
--------d-11----SI6A6A-----------------------
INT 11 - Columbia Data Products Standard Device Level Protocol (SDLP) 1.6
SI = 6A6Ah
AH = command (see #00227)
AL = SCSI Addressing (see #00228)
Return: CF clear if successful
DI = 6A6Ah if AH=01h on entry (maybe for all functions???)
AH = ??? for command 01h
CF set on error
AL = error code
SeeAlso: INT 21/AX=4402h"ASPI"
(Table 00227)
Values for SDLP command:
00h SDLP initialization
01h SDLP System Identify
02h simple read sectors
03h simple write sectors
04h simple verify sectors/seek to sector
05h get device size/type
06h ready unit
07h format unit
08h diagnostics
09h rewind
0Ah erase
0Bh write filemarks
0Ch space
0Dh prevent/allow media removal
0Eh load/unload media
0Fh reserved - returns good status
10h set block size
11h write setmark
12h set error level
13h get address of Request Sense Buffer
14h get SDLP error via Request Sense
F0h Vendor Unique Function (WD7000-FASST2 only)
FDh reset current SCSI HAC
FEh get/set current SCSI HAC
FFh execute SCSI command
Bitfields for SDLP SCSI addressing:
Bit(s) Description (Table 00228)
7-6 Host Adapter
5-3 SCSI Target ID
2-0 SCSI Target LUN (logical unit number)
--------V-110225BX6900-----------------------
INT 11 - Blank-It Screen Blanker - INSTALLATION CHECK
AX = 0225h
BX = 6900h
Return: BL = 23h
ES:DI -> ASCIZ "BLNKIT"
Program: Blank-It is a resident screen blanker by Rhode Island Soft Systems,
Inc.
SeeAlso: AX=0225h/BX=6902h,AX=0225h/BX=6908h,AX=0225h/BX=6909h,INT 14/AX=AA01h
Index: screen saver;Blank-It
--------V-110225BX6901-----------------------
INT 11 - Blank-It Screen Blanker - SET TIMEOUT FOR SCREEN BLANKING
AX = 0225h
BX = 6901h
CX = timeout in timer ticks (18.2/second) or 0000h to disable timeout
largest value is 59 minutes (FBACh or 64428)
Return: CF clear if successful
DI = 6A6Ah (possibly also 6A6Ah for all following functions)
AH = ???
CF set on error
AL = error code
SeeAlso: AX=0225h/BX=6900h,AX=0225h/BX=6904h
Index: screen saver;Blank-It
--------V-110225BX6902-----------------------
INT 11 - Blank-It Screen Blanker - ENABLE THE SOFTWARE
AX = 0225h
BX = 6902h
Return: CF clear if successful
CF set on error
AL = error code
SeeAlso: AX=0225h/BX=6900h,AX=0225h/BX=6903h
Index: screen saver;Blank-It
--------V-110225BX6903-----------------------
INT 11 - Blank-It Screen Blanker - DISABLE THE SOFTWARE
AX = 0225h
BX = 6903h
Return: CF clear if successful
CF set on error
AL = error code
SeeAlso: AX=0225h/BX=6900h,AX=0225h/BX=6902h
Index: screen saver;Blank-It
--------V-110225BX6904-----------------------
INT 11 - Blank-It Screen Blanker - GET BLANKING TIMEOUT
AX = 0225h
BX = 6904h
Return: CF clear if successful
BX = timeout (see AX=0225h/BX=6901h)
CF set on error
AL = error code
SeeAlso: AX=0225h/BX=6900h,AX=0225h/BX=6901h
Index: screen saver;Blank-It
--------V-110225BX6905-----------------------
INT 11 - Blank-It Screen Blanker - ENABLE WINDOWS COMPATIBILITY MODE
AX = 0225h
BX = 6905h
Return: CF clear if successful
CF set on error
AL = error code
SeeAlso: AX=0225h/BX=6900h,AX=0225h/BX=6906h
Index: screen saver;Blank-It
--------V-110225BX6906-----------------------
INT 11 - Blank-It Screen Blanker - DISABLE WINDOWS COMPATIBILITY MODE
AX = 0225h
BX = 6906h
Return: CF clear if successful
CF set on error
AL = error code
Program: Blank-It is a resident screen blanker by Rhode Island Soft Systems,
Inc.
SeeAlso: AX=0225h/BX=6900h,AX=0225h/BX=6905h
Index: screen saver;Blank-It
--------V-110225BX6907-----------------------
INT 11 - Blank-It Screen Blanker - UNBLANK THE SCREEN
AX = 0225h
BX = 6907h
Return: CF clear if successful
CF set on error
AL = error code
SeeAlso: AX=0225h/BX=6900h,AX=0225h/BX=6908h
Index: screen saver;Blank-It
--------V-110225BX6908-----------------------
INT 11 - Blank-It Screen Blanker - BLANK THE SCREEN
AX = 0225h
BX = 6908h
Return: CF clear if successful
CF set on error
AL = error code
SeeAlso: AX=0225h/BX=6900h,AX=0225h/BX=6907h
Index: screen saver;Blank-It
--------V-110225BX6909-----------------------
INT 11 - Blank-It Screen Blanker - SET HOTKEY FOR MANUAL BLANKING
AX = 0225h
BX = 6909h
CL = key scan code (see #00229)
Return: CF clear if successful
CF set on error
AL = error code
Program: Blank-It is a resident screen blanker by Rhode Island Soft Systems,
Inc.
SeeAlso: AX=0225h/BX=6900h
Index: screen saver;Blank-It|hotkeys;Blank-It
(Table 00229)
Values for Blank-It hotkey scan code:
00h No hot key
1Dh Left CTRL
2Ah Left Shift
36h Right Shift
57h F11
58h F12
SeeAlso: #00006
--------G-1105D7-----------------------------
INT 11 CU - Borland C++ IDE - INSTALLED CALLOUT
AX = 05D7h
BX = product ID (0088h)
Note: called by the BC++ IDE when an application calls
INT 12/AX=05D7h/BX=05D7h
SeeAlso: INT 12/AX=05D7h/BX=05D7h
Index: installation check;Borland C++ IDE
--------F-1177-------------------------------
INT 11 - RainbowFAX v1.3 - SFENGINE API - OPERATIONAL CONTROL
AH = 77h
AL = subfunction
01h request SFENGINE start
Return: AX = 0001h
02h check if SFENGINE started
Return: AX = 0000h or 0001h
03h request SFENGINE stop
Return: AX = 0001h
04h check if SFENGINE stopped
Return: AX = 0000h or 0001h
05h installation check
Return: AX = 0001h
06h uninstall???
BX:DX -> return address for successful uninstall???
Return: (at caller's address)
AX = 0000h
else
Return: AX = FFFFh (invalid subfunction)
Return: ES:DX -> ASCIZ signature string "SFAX ENGINE V1.0"
followed by internal data area???
SeeAlso: AH=78h,AH=79h,AH=7Ah,AH=7Ch
Index: installation check;RainbowFAX|installation check;SFENGINE
Index: uninstall;RainbowFAX|uninstall;SFENGINE
--------F-1178-------------------------------
INT 11 - RainbowFAX v1.3 - SFENGINE API - ???
AH = 78h
AL = subfunction
01h set ???
BX = new state for ???
0000h ???
else ???
Return: AX = 0001h
02h set ???
BX = ???
CX = ???
Return: AX = 0001h
03h set ???
BX = new state for ???
0000h ???
else ???
Return: AX = 0001h
else
Return: AX = FFFFh (invalid subfunction)
SeeAlso: AH=77h,AH=79h,AH=7Ah,AH=7Ch
--------F-1179-------------------------------
INT 11 - RainbowFAX v1.3 - SFENGINE API - ???
AH = 79h
AL = subfunction
01h set ??? flag
Return: AX = previous state (0000h already set, 0001h clear)
02h clear ??? flag (refer to subfunc 01h)
Return: AX = 0001h
03h set ??? flag (different from subfn 02h or 04h)
Return: AX = 0001h
04h clear ??? flag (different from subfn 02h or 03h)
Return: AX = 0001h
else
Return: AX = FFFFh (invalid subfunction)
SeeAlso: AH=77h,AH=78h,AH=7Ah,AH=7Ch
--------F-117A-------------------------------
INT 11 - RainbowFAX v1.3 - SFENGINE API - ???
AH = 7Ah
AL = subfunction
01h set ??? flag
Return: AX = previous state (0000h already set, 0001h clear)
02h clear ??? flag
Return: AX = 0001h
03h set ??? flag (different from subfn 02h)
Return: AX = 0001h
else
Return: AX = FFFFh (invalid subfunction)
SeeAlso: AH=77h,AH=78h,AH=79h,AH=7Ch
--------F-117C01-----------------------------
INT 11 - RainbowFAX v1.3 - SFENGINE API - SET ??? FLAG
AX = 7C01h
Return: AX = 0001h
SeeAlso: AH=77h,AH=78h,AH=79h,AH=7Ah,AX=7C02h,AX=7C03h
--------F-117C02-----------------------------
INT 11 - RainbowFAX v1.3 - SFENGINE API - CLEAR ??? FLAG
AX = 7C02h
Return: AX = 0001h
SeeAlso: AH=77h,AH=78h,AH=79h,AH=7Ah,AX=7C01h,AX=7C03h
--------F-117C03-----------------------------
INT 11 - RainbowFAX v1.3 - SFENGINE API - UNSUPPORTED FUNCTIONS
AX = 7C03h-7CFFh
Return: AX = FFFFh
SeeAlso: AH=77h,AX=7C01h,AX=7C02h
--------S-11BC--DX1954-----------------------
INT 11 - BNU FOSSIL - INSTALLATION CHECK
AH = BCh
DX = 1954h
Return: AX = 1954h
ES:DX -> entry point of driver (instead of INT 14)
SeeAlso: INT 14/AH=04h"FOSSIL"
--------d-11FF--SI6A6A-----------------------
INT 11 - WD7000 SDLP interface - EXECUTE GENERIC SCSI COMMAND
AH = FFh
SI = 6A6Ah
AL = SCSI Addressing (see #00230)
CX = bytes of data to be transmitted (max FFF0h)
DH = 00h
DL = length of SCSI Command Descriptor Block
DS:DI -> SCSI Command Descriptor Block
ES:BX -> data buffer
Return: CF set on error
AL = error code
CF clear if successful
Note: because of busmaster operations with WD7000FASST avoid accessing
video memory directly; check 386 memory manager for VDS support.
The WD7000XTAT works with programmed IO and does not have this
limitation.
SeeAlso: INT 21/AX=4402h"ASPI",INT 2F/AX=7F01h
Bitfields for SDLP SCSI addressing:
Bit(s) Description (Table 00230)
2-0 SCSI Target LUN (logical unit number)
5-3 SCSI Target ID
7 write flag, set for write operations, clear otherwise
--------T-11FFFECXFFFE-----------------------
INT 11 - BACK&FORTH (before v1.62) API
AX = FFFEh
CX = FFFEh
BX = function
00h installation check
Return: AX = installation state
0001h BNFHIGH and BNFLOW both loaded
0003h only BNFHIGH loaded
else neither loaded
01h ???
Return: DX:AX -> ???
02h ???
03h ???
04h ???
05h ??? switches current PSP segment and stack if BNFLOW has not
yet announced itself installed
06h ???
Return: AX = ???
SeeAlso: INT 12/AX=FFFEh
Index: installation check;BACK&FORTH
--------B-12---------------------------------
INT 12 - BIOS - GET MEMORY SIZE
Return: AX = kilobytes of contiguous memory starting at absolute address 00000h
Note: this call returns the contents of the word at 0040h:0013h; in PC and
XT, this value is set from the switches on the motherboard
SeeAlso: INT 11"BIOS",INT 2F/AX=4A06h,INT 4C"Tandy 2000",MEM 0040h:0013h
--------C-12---------------------------------
INT 12 - CPU-generated (Pentium +) - MACHINE CHECK EXCEPTION
Notes: Intel documents this interrupt as CPU model-dependent
for current Pentium processors, the reason for the machine check
exception may be read from model-specific registers 00h and 01h
(described, for example, in Christian Ludloff's 4P package)
for Pentium Pro/II processors, the reason may be read from the
MCG_STATUS MSR (see MSR 0000017Ah)
this exception is enabled by bit 6 of CR4
SeeAlso: INT 11"CPU",MSR 00000000h,MSR 00000001h,MSR 0000017Ah
--------K-12----CX1806-----------------------
INT 12 - KEYBUI v2.0+ - INSTALLATION CHECK
CX = 1806h
Return: AX = kilobytes of contiguous memory starting at absolute address 00000h
CX = 1960h if installed
Program: KEYBUI is a resident keyboard driver by Johan Zwiekhorst which allows
accented characters and box drawing on standard QWERTY keyboards; it
also provides break-to-DOS and screen blanking capabilities
SeeAlso: INT 14/AX=AA01h
Index: screen saver;KEYBUI
--------d-12----CX1807-----------------------
INT 12 - PARKER v2.0+ - INSTALLATION CHECK
CX = 1807h
Return: AX = kilobytes of contiguous memory starting at absolute address 00000h
CX = 1961h if installed
Program: PARKER is an optionally-resident hard disk parking program by Johan
Zwiekhorst
--------G-1205D7BX05D7-----------------------
INT 12 U - Borland C++ IDE - INSTALLATION CHECK
AX = 05D7h (1495d)
BX = 05D7h
Note: the BC++ IDE will call INT 11/AX=05D7h/BX=0088h if it is loaded
SeeAlso: INT 11/AX=05D7h
--------v-124350BX4920-----------------------
INT 12 C - CPI-standard virus - "FRIEND" CHECK
AX = 4350h
BX = 4920h
CX = AB46h
DX = 554Eh
Return: if friendly (not to be infected)
CX:DX -> ASCIZ identity code (changes yearly)
SeeAlso: INT 13/AX=EC00h"VIRUS",INT 13/AX=5001h,INT 21/AX=0B56h
--------T-12FFFECXFFFE-----------------------
INT 12 - Back&Forth v1.62+ - API
AX = FFFEh
CX = FFFEh
BX = function
00h installation check
Return: AX = 0001h installed
else not loaded
01h (reserved)
02h build program ID list (shareware Back&Forth)
ES:DI -> buffer of at least 100 bytes, to be filled with words
Return: AX = number of programs defined
ES:DI buffer filled with AX words
02h get memory statistics (Back&Forth Professional)
Return: AX = available swap memory, KBytes
BX = maximum task size, KBytes
DX = fixed overhead per task, excluding video/macro
storage
03h switch to specified task (task need not be open yet)
DX = two-letter program ID
Return: AX = status
0000h if task undefined
0001h task switch will occur when safe
04h (reserved)
05h (reserved)
06h get version (documented only for Back&Forth Professional)
Return: AX = version * 100 (v1.71 = 00ABh)
07h spawn program (Back&Forth Professional only???)
ES:DI -> BF_SPAWN record (see #00232)
Return: AX = status
0000h if no task handles free
0001h spawn will occur when safe
08h get open tasks (documented only for Back&Forth Professional)
ES:DI -> task info buffer (see #00231,#00233)
Return: AX = number of open tasks (max 20)
Note: the supplied buffer must be large enough to hold 21
task entries
09h (reserved)
---Back&Forth Professional---
0Ah get active clipboard filename
Return: DX:AX -> ASCIZ clipboard filename
0Bh get active task number
AX = active task number (00h-13h)
BX = number of tasks allocated
DX = maximum number of tasks
0Ch (reserved)
0Dh (reserved)
0Eh (reserved)
0Fh stuff string into keyboard buffer
ES:DI -> ASCIZ string to be stuffed
Return: nothing
10h check if in graphics mode
Return: AX = state
0000h color text mode
0004h mono text mode
FFFFh graphics mode
11h get Back&Forth Professional user number
Return: AX = user number (0000h-00FFh)
12h switch task by task number
DX = task number
Return: AX = status
0000h attempted to switch to active task
0001h task switch will occur when safe
FFFFh invalid task number
13h delete (kill) task
DX = task number
Return: AX = status
0000h attempted to delete the active task
0001h successfully deleted
FFFFh invalid task number
Note: the active task number will change if the deleted task
was lower in the task list than the active task
14h get next available task handle
Return: AX = next available task handle
FFFFh if task table is full
Program: Back & Forth is a task switcher by Progressive Solutions, Inc.
SeeAlso: INT 11/AX=FFFEh
Index: installation check;BACK&FORTH
Format of Back&Forth task info buffer:
Offset Size Description (Table 00231)
00h 21 BYTEs ASCIZ task name
15h BYTE hotkey shift state (as for INT 16/AH=02h)
16h WORD hotkey scan code (see also #00006)
18h WORD program ID
Index: hotkeys;Back&Forth
SeeAlso: #00232,#00233
Format of Back&Forth Professional BF_SPAWN record:
Offset Size Description (Table 00232)
00h 21 BYTEs task description
15h BYTE flag: disable hotkeys
16h WORD environment size in bytes
18h BYTE hotkey shift flags
19h WORD hotkey scancode
1Bh WORD maximum number of EMS pages
1Dh WORD required memory in KBytes
1Fh 3 BYTEs DESQview-style two-letter program ID
22h 13 BYTEs base name of program to be run (no path or extension)
2Fh 66 BYTEs directory from which to start program
71h 66 BYTEs initial current directory for program
SeeAlso: #00231,#00233
Format of Back&Forth Professional BF_TASK record:
Offset Size Description (Table 00233)
00h DWORD Unix-style task start time (seconds since 1970/1/1)
04h 21 BYTEs task description
19h DWORD elapsed time in task (seconds)
1Dh WORD task ID
1Fh BYTE task hotkey keyboard flags
20h WORD task hotkey scan code (see also #00006)
22h DWORD time task was suspended/exited
26h WORD task handle
SeeAlso: #00231,#00232
--------B-1300-------------------------------
INT 13 - DISK - RESET DISK SYSTEM
AH = 00h
DL = drive (if bit 7 is set both hard disks and floppy disks reset)
Return: AH = status (see #00234)
CF clear if successful (returned AH=00h)
CF set on error
Note: forces controller to recalibrate drive heads (seek to track 0)
for PS/2 35SX, 35LS, 40SX and L40SX, as well as many other systems,
both the master drive and the slave drive respond to the Reset
function that is issued to either drive
SeeAlso: AH=0Dh,AH=11h,INT 21/AH=0Dh,INT 4D/AH=00h"TI Professional"
SeeAlso: INT 56"Tandy 2000",MEM 0040h:003Eh
--------B-1301-------------------------------
INT 13 - DISK - GET STATUS OF LAST OPERATION
AH = 01h
DL = drive (bit 7 set for hard disk)
Return: CF clear if successful (returned status 00h)
CF set on error
AH = status of previous operation (see #00234)
Note: some BIOSes return the status in AL; the PS/2 Model 30/286 returns the
status in both AH and AL
SeeAlso: AH=00h,INT 4D/AH=01h,MEM 0040h:0041h,MEM 0040h:0074h
(Table 00234)
Values for disk operation status:
00h successful completion
01h invalid function in AH or invalid parameter
02h address mark not found
03h disk write-protected
04h sector not found/read error
05h reset failed (hard disk)
05h data did not verify correctly (TI Professional PC)
06h disk changed (floppy)
07h drive parameter activity failed (hard disk)
08h DMA overrun
09h data boundary error (attempted DMA across 64K boundary or >80h sectors)
0Ah bad sector detected (hard disk)
0Bh bad track detected (hard disk)
0Ch unsupported track or invalid media
0Dh invalid number of sectors on format (PS/2 hard disk)
0Eh control data address mark detected (hard disk)
0Fh DMA arbitration level out of range (hard disk)
10h uncorrectable CRC or ECC error on read
11h data ECC corrected (hard disk)
20h controller failure
31h no media in drive (IBM/MS INT 13 extensions)
32h incorrect drive type stored in CMOS (Compaq)
40h seek failed
80h timeout (not ready)
AAh drive not ready (hard disk)
B0h volume not locked in drive (INT 13 extensions)
B1h volume locked in drive (INT 13 extensions)
B2h volume not removable (INT 13 extensions)
B3h volume in use (INT 13 extensions)
B4h lock count exceeded (INT 13 extensions)
B5h valid eject request failed (INT 13 extensions)
B6h volume present but read protected (INT 13 extensions)
BBh undefined error (hard disk)
CCh write fault (hard disk)
E0h status register error (hard disk)
FFh sense operation failed (hard disk)
SeeAlso: #M0022
--------B-1302-------------------------------
INT 13 - DISK - READ SECTOR(S) INTO MEMORY
AH = 02h
AL = number of sectors to read (must be nonzero)
CH = low eight bits of cylinder number
CL = sector number 1-63 (bits 0-5)
high two bits of cylinder (bits 6-7, hard disk only)
DH = head number
DL = drive number (bit 7 set for hard disk)
ES:BX -> data buffer
Return: CF set on error
if AH = 11h (corrected ECC error), AL = burst length
CF clear if successful
AH = status (see #00234)
AL = number of sectors transferred (only valid if CF set for some
BIOSes)
Notes: errors on a floppy may be due to the motor failing to spin up quickly
enough; the read should be retried at least three times, resetting
the disk with AH=00h between attempts
most BIOSes support "multitrack" reads, where the value in AL
exceeds the number of sectors remaining on the track, in which
case any additional sectors are read beginning at sector 1 on
the following head in the same cylinder; the MSDOS CONFIG.SYS command
MULTITRACK (or the Novell DOS DEBLOCK=) can be used to force DOS to
split disk accesses which would wrap across a track boundary into two
separate calls
the IBM AT BIOS and many other BIOSes use only the low four bits of
DH (head number) since the WD-1003 controller which is the standard
AT controller (and the controller that IDE emulates) only supports
16 heads
AWARD AT BIOS and AMI 386sx BIOS have been extended to handle more
than 1024 cylinders by placing bits 10 and 11 of the cylinder number
into bits 6 and 7 of DH
under Windows95, a volume must be locked (see INT 21/AX=440Dh/CX=084Bh)
in order to perform direct accesses such as INT 13h reads and writes
all versions of MS-DOS (including MS-DOS 7 [Windows 95]) have a bug
which prevents booting on hard disks with 256 heads (FFh), so many
modern BIOSes provide mappings with at most 255 (FEh) heads
some cache drivers flush their buffers when detecting that DOS is
bypassed by directly issuing INT 13h from applications. A dummy
read can be used as one of several methods to force cache
flushing for unknown caches (e.g. before rebooting).
BUGS: When reading from floppies, some AMI BIOSes (around 1990-1991) trash
the byte following the data buffer, if it is not arranged to an even
memory boundary. A workaround is to either make the buffer word
aligned (which may also help to speed up things), or to add a dummy
byte after the buffer.
MS-DOS may leave interrupts disabled on return from this function.
Apparently some BIOSes or intercepting resident software have bugs
that may destroy DX on return or not properly set the Carry flag.
At least some Microsoft software frames calls to this function with
PUSH DX, STC, INT 13h, STI, POP DX.
on the original IBM AT BIOS (1984/01/10) this function does not disable
interrupts for harddisks (DL >= 80h). On these machines the MS-DOS/
PC DOS IO.SYS/IBMBIO.COM installs a special filter to bypass the
buggy code in the ROM (see CALL F000h:211Eh)
SeeAlso: AH=03h,AH=0Ah,AH=06h"V10DISK.SYS",AH=21h"PS/1",AH=42h"IBM"
SeeAlso: INT 21/AX=440Dh/CX=084Bh,INT 4D/AH=02h
--------B-1303-------------------------------
INT 13 - DISK - WRITE DISK SECTOR(S)
AH = 03h
AL = number of sectors to write (must be nonzero)
CH = low eight bits of cylinder number
CL = sector number 1-63 (bits 0-5)
high two bits of cylinder (bits 6-7, hard disk only)
DH = head number
DL = drive number (bit 7 set for hard disk)
ES:BX -> data buffer
Return: CF set on error
CF clear if successful
AH = status (see #00234)
AL = number of sectors transferred
(only valid if CF set for some BIOSes)
Notes: errors on a floppy may be due to the motor failing to spin up quickly
enough; the write should be retried at least three times, resetting
the disk with AH=00h between attempts
most BIOSes support "multitrack" writes, where the value in AL
exceeds the number of sectors remaining on the track, in which
case any additional sectors are written beginning at sector 1 on
the following head in the same cylinder; the CONFIG.SYS command
MULTITRACK can be used to force DOS to split disk accesses which
would wrap across a track boundary into two separate calls
the IBM AT BIOS and many other BIOSes use only the low four bits of
DH (head number) since the WD-1003 controller which is the standard
AT controller (and the controller that IDE emulates) only supports
16 heads
AWARD AT BIOS and AMI 386sx BIOS have been extended to handle more
than 1024 cylinders by placing bits 10 and 11 of the cylinder number
into bits 6 and 7 of DH
under Windows95, an application must issue a physical volume lock on
the drive via INT 21/AX=440Dh before it can successfully write to
the disk with this function
SeeAlso: AH=02h,AH=0Bh,AH=07h"V10DISK.SYS",AH=22h"PS/1",AH=43h"IBM"
SeeAlso: INT 21/AX=440Dh"DOS 3.2+",INT 4D/AH=03h
--------B-1304-------------------------------
INT 13 - DISK - VERIFY DISK SECTOR(S)
AH = 04h
AL = number of sectors to verify (must be nonzero)
CH = low eight bits of cylinder number
CL = sector number 1-63 (bits 0-5)
high two bits of cylinder (bits 6-7, hard disk only)
DH = head number
DL = drive number (bit 7 set for hard disk)
ES:BX -> data buffer (PC,XT,AT with BIOS prior to 1985/11/15)
Return: CF set on error
CF clear if successful
AH = status (see #00234)
AL = number of sectors verified
Notes: errors on a floppy may be due to the motor failing to spin up quickly
enough (timeout error 80h); the write should be retried at least
three times, resetting the disk with AH=00h between attempts
on floppys, the operation should also be retried on media change
(06h) detection.
this function does not compare the disk with memory, it merely
checks whether the sector's stored CRC matches the data's actual CRC
the IBM AT BIOS and many other BIOSes use only the low four bits of
DH (head number) since the WD-1003 controller which is the standard
AT controller (and the controller that IDE emulates) only supports
16 heads
AWARD AT BIOS and AMI 386sx BIOS have been extended to handle more
than 1024 cylinders by placing bits 10 and 11 of the cylinder number
into bits 6 and 7 of DH
BUG: some Epson ROM BIOSes sometimes have problems properly handling this
function. The workaround is to reset the disk (INT 13/AH=00h) before
the call.
SeeAlso: AH=02h,AH=44h,INT 4D/AH=04h,INT 4D/AH=06h
--------B-1305-------------------------------
INT 13 - FLOPPY - FORMAT TRACK
AH = 05h
AL = number of sectors to format
CH = track number
DH = head number
DL = drive number
ES:BX -> address field buffer (see #00235)
Return: CF set on error
CF clear if successful
AH = status (see #00234)
Notes: on AT or higher, call AH=17h first
the number of sectors per track is read from the diskette parameter
table pointed at by INT 1E
BUG: some old Compaq BIOSes have a bug when attempting to call this function
from Windows Standard Mode with EMM386 loaded. A possible workaround
is to call this function from Real Mode e.g. through DPMI function
"Call Real Mode function with FAR return" (see INT 31/AX=0301h).
SeeAlso: AH=05h"FIXED",AH=17h,AH=18h,INT 1E
Format of floppy format address field buffer entry (one per sector in track):
Offset Size Description (Table 00235)
00h BYTE track number
01h BYTE head number (0-based)
02h BYTE sector number
03h BYTE sector size (00h=128 bytes, 01h=256 bytes, 02h=512, 03h=1024)
--------B-1305-------------------------------
INT 13 - FIXED DISK - FORMAT TRACK
AH = 05h
AL = interleave value (XT-type controllers only)
ES:BX -> 512-byte format buffer
the first 2*(sectors/track) bytes contain F,N for each sector
F = sector type
00h for good sector
20h to unassign from alternate location
40h to assign to alternate location
80h for bad sector
N = sector number
CH = cylinder number (bits 8,9 in high bits of CL)
CL = high bits of cylinder number (bits 7,6)
DH = head
DL = drive
Return: CF set on error
CF clear if successful
AH = status code (see #00234)
Notes: AWARD AT BIOS and AMI 386sx BIOS have been extended to handle more
than 1024 cylinders by placing bits 10 and 11 of the cylinder number
into bits 6 and 7 of DH
for XT-type controllers on an AT or higher, AH=0Fh should be called
first
the IBM AT BIOS and many other BIOSes use only the low four bits of
DH (head number) since the WD-1003 controller which is the standard
AT controller (and the controller that IDE emulates) only supports
16 heads
not all controller support sector types 20h and 40h
under Windows95, an application must issue a physical volume lock on
the drive via INT 21/AX=440Dh before it can successfully write to
the disk with this function
SeeAlso: AH=05h"FLOPPY",AH=06h"FIXED",AH=07h"FIXED",AH=0Fh,AH=18h,AH=1Ah
--------d-1305-------------------------------
INT 13 - Future Domain SCSI BIOS - SEND SCSI MODE SELECT COMMAND
AH = 05h
DL = hard drive ID
ES:BX -> mode select data (see #00236)
Return: CF set on error
CF clear if successful
AH = status code (see #00234)
Notes: this function can be called before AH=07h"SCSI" or AH=06h"SCSI" to
format a SCSI disk with the desired parameters
the mode select data below is from the SCSI-1 specification
the TMC-950 does not support any Future Domain BIOS calls; instead,
it provides a full CAM implementation (see INT 4F/AX=8100h)
SeeAlso: AH=06h"SCSI",AH=07h"SCSI",INT 4F/AX=8100h
Format of Future Domain SCSI mode select data:
Offset Size Description (Table 00236)
00h BYTE number of bytes of remaining data (12 + vendor unique length)
01h BYTE reserved (0)
02h BYTE medium type (0 for hard disk)
03h BYTE reserved (0)
04h BYTE block descriptor length (8)
05h BYTE density code (0 for hard disk)
06h 3 BYTEs (big-endian) number of blocks (000000h for entire disk)
09h BYTE reserved (0)
0Ah 3 BYTEs (big-endian) block length (512 standard, or 256)
0Dh ??? vendor-specific parameter bytes (optional)
--------d-13057FSI324D-----------------------
INT 13 - 2M - FORMAT TRACK
AX = 057Fh
SI = 324Dh ("2M")
CH = track number
DH = head number
DL = drive number
ES:BX -> boot sector of future 2M diskette
Return: CF set on error
CF clear if successful
AH = status (see #00234)
Program: 2M is a TSR developed by Ciriaco Garc<72>a de Celis to support
non standard diskettes with 820-902/1476-1558K (5.25 DD/HD)
and 984-1066/1804-1886K/3608-3772K (3.5 DD/HD/ED)
InstallCheck: must search for a "CiriSOFT:2M:1.3" or "CiriSOFT:2MX:3.0" or
similar (recomended ":2M:", ":2MX:", or ":2MB:" substrings) in the
CiriSOFT TSR interface
Notes: it is not necessary to call AH=17h or AH=18h first (will be ignored)
the diskette format must always begin on cylinder 0 head 0
the boot sector can be obtained from an already-formatted 2M diskette
(by calling AH=02h with head number 00h in 2M v1.x and with head
number 80h for 2M v2+)
since 2M v2.0, the BOOT sector is emulated using the first physical
sector of FAT2; the second-sixth physical sectors of FAT2 in HD or ED
diskettes store the SuperBOOT code. To skip the FAT2 emulation (using
FAT1) of 2M, in order to read the SuperBOOT code, head number must be
80h-81h instead 0-1 (bit 7 active) in standard read/write functions.
This lets diskcopy programs format 2M target diskettes copying
SuperBOOT code. If the target diskette is already 2MF formatted
(containing boot code) this trick it is not necessary.
when using STV technology (offset 65 of boot sector equal to 1) it is
necessary to write the full track before formatting (except track 0
side 0) to complete the format and skip future CRC errors on read; in
track 0 side 1 the head used must be 81h instead 1. Diskcopy programs
may do a format-write-verify sequential phases to improve performance
SeeAlso: AH=05h"FLOPPY",AH=18h/CX=5055h,INT 2F"CiriSOFT"
--------B-1306-------------------------------
INT 13 - FIXED DISK - FORMAT TRACK AND SET BAD SECTOR FLAGS (XT,PORT)
AH = 06h
AL = interleave value
CH = cylinder number (bits 8,9 in high bits of CL)
CL = sector number
DH = head
DL = drive
Return: AH = status code (see #00234)
Note: AWARD AT BIOS and AMI 386sx BIOS have been extended to handle more
than 1024 cylinders by placing bits 10 and 11 of the cylinder number
into bits 6 and 7 of DH
SeeAlso: AH=05h"FIXED",AH=07h"FIXED"
--------d-1306-------------------------------
INT 13 - Future Domain SCSI BIOS - FORMAT DRIVE WITH BAD SECTOR MAPPING
AH = 06h
AL = interleave
(0 = default, 1 = consecutive sectors, 2 - 255 = vendor unique)
DL = hard drive ID
DH = defect list info (see #00237)
ES:BX -> defect table A, B or C (see #00238,#00239,#00240)
Return: CF set on error
CF clear if successful
AH = status code (see #00234)
Notes: block addresses must be in ascending order (for table B, cylinder is
most significant, byte from index least significant; for table C,
cylinder is most significant, sector number least significant)
table B defect bytes from index of FFFFFFFFh indicates that the entire
track shall be reassigned
table C defect sector number of FFFFFFFFh indicates that the entire
track shall be reassigned
the TMC-950 does not support any Future Domain BIOS calls; instead,
it provides a full CAM implementation (see INT 4F/AX=8100h)
SeeAlso: AH=05h"SCSI",AH=06h"FIXED",AH=07h"SCSI"
Bitfields for Future Domain SCSI defect list info:
Bit(s) Description (Table 00237)
7-5 drive LUN
4 defect list is available
3 defect list is complete (erase drive's defect list)
2-0 defect table format
(000=use defect table A, 100=use defect table B,
101=use defect table C)
Format of Future Domain SCSI defect table A:
Offset Size Description (Table 00238)
00h WORD number of bytes remaining in table
02h BYTE reserved (0)
03h BYTE reserved (0)
04h WORD (big-endian) defect list length (4*number of defects)
06h 4 DWORDs (big-endian) defect block addresses
Format of Future Domain SCSI defect table B:
Offset Size Description (Table 00239)
00h WORD number of bytes remaining in table
02h BYTE reserved (0)
03h BYTE reserved (0)
04h WORD (big-endian) defect list length (8*number of defects)
06h 8N BYTEs defect list [array] (see #00241)
Format of Future Domain SCSI defect table C:
Offset Size Description (Table 00240)
00h WORD number of bytes remaining in table
02h BYTE reserved (0)
03h BYTE reserved (0)
04h WORD (big-endian) defect list length (8*number of defects)
06h 8N BYTEs defect list [array] (see #00241)
Format of Future Domain SCSI defect list entry:
Offset Size Description (Table 00241)
00h 3 BYTEs (big-endian) cylinder number of defect
03h BYTE head number of defect
04h DWORD (big-endian) defect bytes from index
--------d-1306-------------------------------
INT 13 - Adaptec AHA-154xA/Bustek BT-542 BIOS - IDENTIFY SCSI DEVICES
AH = 06h
Return: AH = status code (see #00234)
CF clear if successful
AL = first drive supported
(80h nonconcurrent operation, 81h concurrent operation)
CF set on error
Desc: determine the number of the first supported SCSI drive
Note: the return value is 80h when two SCSI drives are supported, 81h if
only one SCSI drive is installed
SeeAlso: AH=08h"PC",#00732 at INT 1A/AX=B102h
--------d-1306-------------------------------
INT 13 - V10DISK.SYS - READ DELETED SECTORS
AH = 06h
AL = number of sectors
CH = cylinder number (bits 8,9 in high bits of CL)
CL = sector number
DH = head
DL = drive
ES:BX -> buffer
Return: AH = status code (see #00234)
Program: V10DISK.SYS is a driver for the Flagstaff Engineering 8" floppies
SeeAlso: AH=02h,AH=07h"V10DISK.SYS"
--------B-1307-------------------------------
INT 13 - FIXED DISK - FORMAT DRIVE STARTING AT GIVEN TRACK (XT,PORT)
AH = 07h
AL = interleave value (XT only)
ES:BX = 512-byte format buffer (see AH=05h)
CH = cylinder number (bits 8,9 in high bits of CL)
CL = sector number
DH = head
DL = drive
Return: AH = status code (see #00234)
Note: AWARD AT BIOS and AMI 386sx BIOS have been extended to handle more
than 1024 cylinders by placing bits 10 and 11 of the cylinder number
into bits 6 and 7 of DH
SeeAlso: AH=05h"FIXED",AH=06h"FIXED",AH=1Ah
--------d-1307-------------------------------
INT 13 - Future Domain SCSI BIOS - FORMAT DRIVE
AH = 07h
AL = interleave (0 = default, 1 = consecutive sectors,
2 - 255 = vendor unique)
DL = hard drive ID
Return: CF set on error
CF clear if successful
AH = status code (see #00234)
SeeAlso: AH=05h"SCSI",AH=06h"SCSI",AH=07h"FIXED"
--------d-1307-------------------------------
INT 13 - V10DISK.SYS - WRITE DELETED SECTORS
AH = 07h
AL = number of sectors
CH = cylinder number (bits 8,9 in high bits of CL)
CL = sector number
DH = head
DL = drive
ES:BX -> buffer
Return: AH = status code (see #00234)
Program: V10DISK.SYS is a driver for the Flagstaff Engineering 8" floppies
SeeAlso: AH=03h,AH=06h"V10DISK.SYS"
--------B-1308-------------------------------
INT 13 - DISK - GET DRIVE PARAMETERS (PC,XT286,CONV,PS,ESDI,SCSI)
AH = 08h
DL = drive (bit 7 set for hard disk)
ES:DI = 0000h:0000h to guard against BIOS bugs
Return: CF set on error
AH = status (07h) (see #00234)
CF clear if successful
AH = 00h
AL = 00h on at least some BIOSes
BL = drive type (AT/PS2 floppies only) (see #00242)
CH = low eight bits of maximum cylinder number
CL = maximum sector number (bits 5-0)
high two bits of maximum cylinder number (bits 7-6)
DH = maximum head number
DL = number of drives
ES:DI -> drive parameter table (floppies only)
Notes: may return successful even though specified drive is greater than the
number of attached drives of that type (floppy/hard); check DL to
ensure validity
for systems predating the IBM AT, this call is only valid for hard
disks, as it is implemented by the hard disk BIOS rather than the
ROM BIOS
the IBM ROM-BIOS returns the total number of hard disks attached
to the system regardless of whether DL >= 80h on entry.
Toshiba laptops with HardRAM return DL=02h when called with DL=80h,
but fail on DL=81h. The BIOS data at 40h:75h correctly reports 01h.
may indicate only two drives present even if more are attached; to
ensure a correct count, one can use AH=15h to scan through possible
drives
Reportedly some Compaq BIOSes with more than one hard disk controller
return only the number of drives DL attached to the corresponding
controller as specified by the DL value on entry. However, on
Compaq machines with "COMPAQ" signature at F000h:FFEAh,
MS-DOS/PC DOS IO.SYS/IBMBIO.COM call INT 15/AX=E400h and
INT 15/AX=E480h to enable Compaq "mode 2" before retrieving the count
of hard disks installed in the system (DL) from this function.
the maximum cylinder number reported in CX is usually two less than
the total cylinder count reported in the fixed disk parameter table
(see INT 41h,INT 46h) because early hard disks used the last cylinder
for testing purposes; however, on some Zenith machines, the maximum
cylinder number reportedly is three less than the count in the fixed
disk parameter table.
for BIOSes which reserve the last cylinder for testing purposes, the
cylinder count is automatically decremented
on PS/1s with IBM ROM DOS 4, nonexistent drives return CF clear,
BX=CX=0000h, and ES:DI = 0000h:0000h
machines with lost CMOS memory may return invalid data for floppy
drives. In this situation CF is cleared, but AX,BX,CX,DX,DH,DI,
and ES contain only 0. At least under some circumstances, MS-DOS/
PC DOS IO.SYS/IBMBIO.COM just assumes a 360 KB floppy if it sees
CH to be zero for a floppy.
the PC-Tools PCFORMAT program requires that AL=00h before it will
proceed with the formatting
if this function fails, an alternative way to retrieve the number
of floppy drives installed in the system is to call INT 11h.
In fact, the MS-DOS/PC-DOS IO.SYS/IBMBIO.COM attempts to get the
number of floppy drives installed from INT 13/AH=08h, when INT 11h
AX bit 0 indicates there are no floppy drives installed. In addition
to testing the CF flag, it only trusts the result when the number of
sectors (CL preset to zero) is non-zero after the call.
BUGS: several different Compaq BIOSes incorrectly report high-numbered
drives (such as 90h, B0h, D0h, and F0h) as present, giving them the
same geometry as drive 80h; as a workaround, scan through disk
numbers, stopping as soon as the number of valid drives encountered
equals the value in 0040h:0075h
a bug in Leading Edge 8088 BIOS 3.10 causes the DI,SI,BP,DS, and ES
registers to be destroyed
some Toshiba BIOSes (at least before 1995, maybe some laptops???
with 1.44 MB floppies) have a bug where they do not set the ES:DI
vector even for floppy drives. Hence these registers should be
preset with zero before the call and checked to be non-zero on
return before using them. Also it seems these BIOSes can return
wrong info in BL and CX, as S/DOS 1.0 can be configured to preset
these registers as for an 1.44 MB floppy.
the PS/2 Model 30 fails to reset the bus after INT 13/AH=08h and
INT 13/AH=15h. A workaround is to monitor for these functions
and perform a transparent INT 13/AH=01h status read afterwards.
This will reset the bus. The MS-DOS 6.0 IO.SYS takes care of
this by installing a special INT 13h interceptor for this purpose.
AD-DOS may leave interrupts disabled on return from this function.
Some Microsoft software explicitly sets STI after return.
SeeAlso: AH=06h"Adaptec",AH=13h"SyQuest",AH=48h,AH=15h,INT 1E
SeeAlso: INT 41"HARD DISK 0"
(Table 00242)
Values for diskette drive type:
01h 360K
02h 1.2M
03h 720K
04h 1.44M
05h ??? (reportedly an obscure drive type shipped on some IBM machines)
2.88M on some machines (at least AMI 486 BIOS)
06h 2.88M
10h ATAPI Removable Media Device
--------d-1308-------------------------------
INT 13 - V10DISK.SYS - SET FORMAT
AH = 08h
AL = number of sectors
CH = cylinder number (bits 8,9 in high bits of CL)
CL = sector number
DH = head
DL = drive
Return: AH = status code (see #00234)
Program: V10DISK.SYS is a driver for the Flagstaff Engineering 8" floppies
Note: details not available
SeeAlso: AH=03h,AH=06h"V10DISK.SYS"
--------y-130800DLF0-------------------------
INT 13 - SecureDrive - INSTALLATION CHECK
AX = 08000h
DL = F0h
Return: AX = EDCBh for version 1.0-1.2
AX = EDCCh for version 1.3
CX = code segment
DX = data address within code segment
Program: SecureDrive by Mike Ingle <mikeingle@delphi.com> allows you to create
an encrypted partition on your harddisk.
--------B-1309-------------------------------
INT 13 - HARD DISK - INITIALIZE CONTROLLER WITH DRIVE PARAMETERS (AT,PS)
AH = 09h
DL = drive (80h for first, 81h for second)
Return: CF clear if successful
CF set on error
AH = status (see #00234)
Notes: on the PC and XT, this function uses the parameter table pointed at by
INT 41
on the AT and later, this function uses the parameter table pointed at
by INT 41 if DL=80h, and the parameter table pointed at by INT 46 if
DL=81h
SeeAlso: INT 41"HARD DISK 0",INT 46"HARD DISK 1"
--------B-130A-------------------------------
INT 13 - HARD DISK - READ LONG SECTOR(S) (AT and later)
AH = 0Ah
AL = number of sectors (01h may be only value supported)
CH = low eight bits of cylinder number
CL = sector number (bits 5-0)
high two bits of cylinder number (bits 7-6)
DH = head number
DL = drive number (80h = first, 81h = second)
ES:BX -> data buffer
Return: CF clear if successful
CF set on error
AH = status (see #00234)
AL = number of sectors transferred
Notes: this function reads in four to seven bytes of error-correcting code
along with each sector's worth of information
data errors are not automatically corrected, and the read is aborted
after the first sector with an ECC error
used for diagnostics only on PS/2 systems; IBM officially classifies
this function as optional
BUG: on the original IBM AT BIOS (1984/01/10) this function does not disable
interrupts for harddisks (DL >= 80h). On these machines the MS-DOS/
PC DOS IO.SYS/IBMBIO.COM installs a special filter to bypass the
buggy code in the ROM (see CALL F000h:211Eh)
SeeAlso: AH=02h,AH=0Bh,MEM 0040h:0074h
--------B-130B-------------------------------
INT 13 - HARD DISK - WRITE LONG SECTOR(S) (AT and later)
AH = 0Bh
AL = number of sectors (01h may be only value supported)
CH = low eight bits of cylinder number
CL = sector number (bits 5-0)
high two bits of cylinder number (bits 7-6)
DH = head number
DL = drive number (80h = first, 81h = second)
ES:BX -> data buffer
Return: CF clear if successful
CF set on error
AH = status (see #00234)
AL = number of sectors transferred
Notes: each sector's worth of data must be followed by four to seven bytes of
error-correction information
used for diagnostics only on PS/2 systems; IBM officially classifies
this function as optional
SeeAlso: AH=03h,AH=0Ah,MEM 0040h:0074h
--------B-130C-------------------------------
INT 13 - HARD DISK - SEEK TO CYLINDER
AH = 0Ch
CH = low eight bits of cylinder number
CL = sector number (bits 5-0)
high two bits of cylinder number (bits 7-6)
DH = head number
DL = drive number (80h = first, 81h = second hard disk)
Return: CF set on error
CF clear if successful
AH = status (see #00234)
SeeAlso: AH=00h,AH=02h,AH=0Ah,AH=47h
--------B-130D-------------------------------
INT 13 - HARD DISK - RESET HARD DISKS
AH = 0Dh
DL = drive number (80h = first, 81h = second hard disk)
Return: CF set on error
CF clear if successful
AH = status (see #00234)
Notes: reinitializes the hard disk controller, resets the specified drive's
parameters, and recalibrates the drive's heads (seek to track 0)
for PS/2 35SX, 35LS, 40SX and L40SX, as well as many other systems,
both the master drive and the slave drive respond to the Reset
function that is issued to either drive
not for PS/2 ESDI drives
SeeAlso: AH=00h,INT 21/AH=0Dh
--------B-130E-------------------------------
INT 13 - HARD DISK - READ SECTOR BUFFER (XT only)
AH = 0Eh
DL = drive number (80h = first, 81h = second hard disk)
ES:BX -> buffer
Return: CF set on error
CF clear if successful
AH = status code (see #00234)
Notes: transfers controller's sector buffer. No data is read from the drive
used for diagnostics only on PS/2 systems
SeeAlso: AH=0Ah
--------B-130F-------------------------------
INT 13 - HARD DISK - WRITE SECTOR BUFFER (XT only)
AH = 0Fh
DL = drive number (80h = first, 81h = second hard disk)
ES:BX -> buffer
Return: CF set on error
CF clear if successful
AH = status code (see #00234)
Notes: does not write data to the drive
should be called before formatting to initialize an XT-type
controller's sector buffer
used for diagnostics only on PS/2 systems
SeeAlso: AH=0Bh
--------B-1310-------------------------------
INT 13 - HARD DISK - CHECK IF DRIVE READY
AH = 10h
DL = drive number (80h = first, 81h = second hard disk)
Return: CF set on error
CF clear if successful
AH = status (see #00234 at AH=01h)
SeeAlso: AH=11h
--------B-1311-------------------------------
INT 13 - HARD DISK - RECALIBRATE DRIVE
AH = 11h
DL = drive number (80h = first, 81h = second hard disk)
Return: CF set on error
CF clear if successful
AH = status (see #00234 at AH=01h)
Note: causes hard disk controller to seek the specified drive to cylinder 0
SeeAlso: AH=00h,AH=0Ch,AH=10h,AH=19h"FIXED DISK",MEM 0040h:003Eh
--------B-1312-------------------------------
INT 13 - HARD DISK - CONTROLLER RAM DIAGNOSTIC (XT,PS)
AH = 12h
DL = drive number (80h = first, 81h = second hard disk)
Return: CF set on error
CF clear if successful
AH = status code (see #00234 at AH=01h)
AL = 00h
SeeAlso: AH=13h,AH=14h
--------d-1312-------------------------------
INT 13 - Future Domain SCSI CONTROLLER - STOP SCSI DISK
AH = 12h
DL = hard drive ID
Return: CF set on error
CF clear if successful
AH = status code (see #00234 at AH=01h)
Notes: available at least on the TMC-870 8-bit SCSI controller BIOS v6.0A
if the given drive is a SCSI device, the SCSI Stop Unit command is sent
and either "Disk prepared for shipping" or "Disk Stop command failed"
is displayed
the TMC-950 does not support any Future Domain BIOS calls; instead,
it provides a full CAM implementation (see INT 4F/AX=8100h)
--------d-1312-------------------------------
INT 13 - SyQuest - START/STOP SCSI DISK
AH = 12h
AL = subfunction
00h start disk
01h stop disk
CX = wait flag
00h wait for ready
01h don't wait for ready
DL = hard drive ID (bit 7 for hard disks must be set)
Return: CF set on error
CF clear if successful
AH = status
00h successful
01h invalid function request
80h timeout
SeeAlso: AH=12h"Future Domain",AH=13h"SyQuest"
--------B-1313-------------------------------
INT 13 - HARD DISK - DRIVE DIAGNOSTIC (XT,PS)
AH = 13h
DL = drive number (80h = first, 81h = second hard disk)
Return: CF set on error
CF clear if successful
AH = status code (see #00234 at AH=01h)
AL = 00h
SeeAlso: AH=12h"HARD DISK",AH=14h"HARD DISK"
--------d-1313-------------------------------
INT 13 - SyQuest - READ DRIVE PARAMATERS (for DOS 5+)
AH = 13h
DL = drive ID (bit 7 set for hard disks)
Return: CF set on error
AH = status (07h) (see #00234 at AH=01h)
CF clear if successful
AH = 00h
BL = drive type (AT/PS2 floppies only) (see #00242)
CH = low eight bits of maximum cylinder number
CL = maximum sector number (bits 5-0)
high two bits of maximum cylinder number (bits 7-6)
DH = maximum head number
DL = number of drives
ES:DI -> drive parameter table (floppies only)
Notes: the return values are identical to the standard INT 13/AH=08h, but the
number of drives is not limited to 2, so
scanning all possible drive numbers with the Read DASD Type call
(AH=15h) should generally be preferred to determine the number of
drives attached to the system.
SeeAlso: AH=08h"PC",AH=12h"SyQuest",AH=15h,AH=59h"SyQuest"
--------B-1314-------------------------------
INT 13 - HARD DISK - CONTROLLER INTERNAL DIAGNOSTIC
AH = 14h
Return: CF set on error
CF clear if successful
AH = status code (see #00234 at AH=01h)
AL = 00h
SeeAlso: AH=12h,AH=13h
--------B-1315-------------------------------
INT 13 - DISK - GET DISK TYPE (XT 1986/1/10 or later,XT286,AT,PS)
AH = 15h
DL = drive number (bit 7 set for hard disk)
(AL = FFh, CX = FFFFh, see Note)
Return: CF clear if successful
AH = type code
00h no such drive
(SpeedStor) AL = 03h hard disk
CX:DX = number of 512-byte sectors
01h floppy without change-line support
02h floppy (or other removable drive) with change-line support
03h hard disk
CX:DX = number of 512-byte sectors
CF set on error
AH = status (see #00234 at AH=01h)
Note: SyQuest can report type 01h or 02h for 'hard disks', since its media
is removable
BUGS: many versions of the Award 486 BIOS do not return the sector count
because the BIOS exit code restores CX and DX to their original
values after the function had already set them to correct values
Some releases of PC Tools REBUILD preset CX=FFFFh and only trust the
results if CH <= 2 on return (which would cut off drives > 16 Gb).
several different Compaq BIOSes incorrectly report high-numbered
drives (such as 90h, B0h, D0h, and F0h) as present, giving them the
same geometry as drive 80h; as a workaround, scan through disk
numbers, stopping as soon as the number of valid drives encountered
equals the value in 0040h:0075h
the PS/2 Model 30 fails to reset the bus after INT 13/AH=08h and
INT 13/AH=15h. A workaround is to monitor for these functions
and perform a transparent INT 13/AH=01h status read afterwards.
This will reset the bus. The MS-DOS 6.0 IO.SYS takes care of
this by installing a special INT 13h interceptor for this purpose.
Some releases of SpeedStor have a bug where it reports AX=0003h instead
of correctly reporting AH=03h for hard disks. A possible workaround
when testing for hard disks is to check for AH=03h and AX=0003h.
In this case this function should be invoked with a bogus fixed
value in AL, e.g. AL=FFh.
SeeAlso: AH=08h,AH=16h,AH=17h,AH=19h"SCSI",MEM 0040h:0075h
--------B-1316-------------------------------
INT 13 - FLOPPY DISK - DETECT DISK CHANGE (XT 1986/1/10 or later,XT286,AT,PS)
AH = 16h
DL = drive number (00h-7Fh)
SI = 0000h (to avoid crash on AT&T 6300)
Return: CF clear if change line inactive
AH = 00h (disk not changed)
CF set if change line active
AH = status
01h invalid command (SyQuest)
06h change line active or not supported
80h drive not ready or not present
Notes: call AH=15h first to determine whether the drive supports a change
line
this call also clears the media-change status, so that a disk change
is only reported once
BUGS: some versions of Award 386 Modular BIOS and AMI BIOS fail to clear
the media-change status
AT&T 6300 WGS systems crash if SI <> 0 on entry.
some pre 1986/08/04 Compaq ROM BIOS have a serious bug where this
function may re-configure a hard disk depending on what is located
at ES:[BX] and data indexed to by it. MS-DOS/PC DOS IO.SYS/IBMBIO.COM
install a special filter when they detect Compaq ROM BIOSes with
earlier dates.
some Compaq 286 systems have a bug in all INT 13h functions >= 16h,
which causes the byte at DS:0074h to be destroyed when called for
hard disks (DL >= 80h). MS-DOS/PC DOS IO.SYS/IBMBIO.COM performs a
test on this bug using this sub-function, and if found installs a
special filter which points DS into ROM, so that it cannot cause
any harm.
some drives (or controllers???) forget the change line status
if another drive is accessed afterwards. The DOS BIOS takes care
of this by not relying on the reported change line status when
the change line is not active and a different drive is accessed,
instead it reports "don't know" to the DOS kernel.
SeeAlso: AH=15h,AH=49h
--------B-1317-------------------------------
INT 13 - FLOPPY DISK - SET DISK TYPE FOR FORMAT (AT,PS)
AH = 17h
AL = format type
01h = 320/360K disk in 360K drive
02h = 320/360K disk in 1.2M drive
03h = 1.2M disk in 1.2M drive
04h = 720K disk in 720K or 1.44M drive
DL = drive number
Return: CF set on error
CF clear if successful
AH = status (see #00234 at AH=01h)
Note: this function does not handle 1.44M drives; use AH=18h instead
SeeAlso: AH=15h,AH=18h
--------d-131700-----------------------------
INT 13 - Future Domain SCSI CONTROLLER - GET INQUIRY INFO FROM SCSI DEVICE
AX = 1700h
CL = length of buffer
DL = hard drive ID
ES:BX -> buffer for info (see #00243)
Return: CF clear if successful
CH = number of bytes returned in buffer???
CF set on error
AH = status code (see #00234 at AH=01h)
Notes: this function is not available with 8-bit controller ROM versions < 7.0
information block bytes 5-n are vendor-specific in older SCSI devices
the TMC-950 does not support any Future Domain BIOS calls; instead,
it provides a full CAM implementation (see INT 4F/AX=8100h)
SeeAlso: AH=18h"SCSI",AH=1Bh"SCSI"
Format of Future Domain SCSI inquiry information block:
Offset Size Description (Table 00243)
00h BYTE device type
bits 0-4: peripheral device type (see #00244)
bits 5-7: peripheral qualifier (see #00245)
01h BYTE device type modifier
bits 0-6: device type modifier
bit 7: removable medium
02h BYTE SCSI version (see #00246)
03h BYTE data format/capabilities (see #00247)
04h BYTE additional data length (total remaining bytes)
05h 2 BYTEs reserved
07h BYTE device capabilities (see #00248)
08h 8 BYTEs vendor identification (space-padded ASCII)
10h 8 BYTEs product identification (space-padded ASCII)
20h 4 BYTEs product revision level (space-padded ASCII)
24h 20 BYTEs vendor specific
38h 40 BYTEs reserved
60h var vendor specific parameters
(Table 00244)
Values for Future Domain SCSI peripheral device type:
00h direct-access device (e.g., magnetic disk)
01h sequential-access device (e.g., magnetic tape)
02h printer device
03h processor device
04h write-once device (e.g., some optical disks)
05h CD-ROM device
06h scanner device
07h optical memory device (e.g., some optical disks)
08h medium changer device (e.g., jukeboxes)
09h communications device
0Ah (defined by ASC IT8)
0Bh (defined by ASC IT8)
0Ch-1Eh reserved
1Fh unknown or no device type
(Table 00245)
Values for Future Domain SCSI peripheral qualifier:
000b device is currently connected to this logical unit and available
001b target is capable of supporting the specified peripheral, but the
physical device is not currently connected to this logical unit
010b reserved
011b target can't support a physical device on this logical unit
1xxb vendor specific
Bitfields for Future Domain SCSI version:
Bit(s) Description (Table 00246)
0-2 ANSI-approved version
000 device might or might not comply to ANSI standard
001 device complies to ANSI SCSI-1
010 device complies to ANSI SCSI-2
other reserved
3-5 ECMA version
6-7 ISO version
Bitfields for Future Domain SCSI data format/capabilities:
Bit(s) Description (Table 00247)
0-2 response data format
000 information block is as specified in SCSI-1
001 information block is as specified in CCS
010 information block is as specified in SCSI-2
other reserved
4-5 reserved
6 terminate I/O process supported
7 asynchronous event notification supported
Bitfields for Future Domain SCSI device capabilities:
Bit(s) Description (Table 00248)
0 device responds to RESET with a hard RESET
1 tagged command queuing supported
2 reserved
3 linked commands supported
4 synchronous data transfer supported
5 16-transfers supported
6 32-transfers supported
7 relative addressing supported
--------B-1318-------------------------------
INT 13 - DISK - SET MEDIA TYPE FOR FORMAT (AT model 3x9,XT2,XT286,PS)
AH = 18h
DL = drive number
CH = lower 8 bits of highest cylinder number (number of cylinders - 1)
CL = sectors per track (bits 0-5)
top 2 bits of highest cylinder number (bits 6,7)
Return: AH = status
00h requested combination supported
01h function not available
0Ch not supported or drive type unknown
80h there is no disk in the drive
ES:DI -> 11-byte parameter table (see #01264 at INT 1E)
Note: this function does not set the INT 1E vector to point at the returned
parameter table; it is the caller's responsibility to do so
SeeAlso: AH=05h,AH=07h,AH=17h,INT 1E
--------d-1318-------------------------------
INT 13 - Future Domain SCSI BIOS - GET SCSI CONTROLLER INFORMATION
AH = 18h
DL = hard drive ID
Return: CF set on error
AH = status code (see #00234 at AH=01h)
CF clear if successful
AX = 4321h (magic number)
CX = controller family code (see #00249)
---if family code=0200h
DH = number of exclusively ROM-controlled SCSI devices
DL = canonical SCSI device number for specified drive
---if family code <> 0200h
BH = number of exclusively ROM-controlled SCSI devices
BL = canonical SCSI device number for specified drive
Notes: also sets an internal flag (non-resettable) which prevents some
controller messages from being displayed, allows writes to
removable devices (use caution!), and enables the INT 13 interface
for more than one drive (i.e. DL >= 81h) in at least some ROM
versions
the TMC-950 does not support any Future Domain BIOS calls; instead,
it provides a full CAM implementation (see INT 4F/AX=8100h)
SeeAlso: AH=05h"SCSI",AX=1700h"SCSI",AH=1Bh"SCSI",INT 4F/AX=8100h
(Table 00249)
Values for Future Domain SCSI controller family code:
0200h TMC-1680/? (ROM 3.0)
0203h TMC-1650/1660/1670/1680 (ROM 2.0)
040Ah TMC-820/830/840/850/860/870/875/880/885 (ROM <= 6.0A)
050Dh TMC-840/841/880/881 (ROM 5.2D)
0700h TMC-830/850/860/875/885 (ROM 7.0)
--------d-1318--CX5055-----------------------
INT 13 - PU_1700.COM - INSTALLATION CHECK
AH = 18h
CX = 5055h ('PU')
DL = 00h
Return: AX = 7570h ('up') if PU_1700 is installed
Program: PU_1700 is a BIOS enhancer from PU Service Systems which permits
formatting diskettes at higher capacity (1.78M instead of 1.44M)
SeeAlso: AX=057Fh/SI=324Dh"2M"
--------d-1318--CXD2C9-----------------------
INT 13 - XDF.COM - API
AH = 18h
CX = D2C9h ("R"+80h, "I"+80h = Roger Ivey)
DX = 0000h
BX = function
0000h installation check
Return: AH = 0Ch
CX = 7269h ("ri" = Roger Ivey)
ES = segment of driver
CF set
2F64h ("/d") disable the driver
Return: AH = 0Ch
ES:BX = pointer to activation flag (it is set to 0:
set it to 1 to enable the driver again)
CX = 7269h
CF set
2F75h ("/u") unload the driver (restore interrupts & free memory)
Return: AH = 0Ch
DL = 55h ("U") if successful
= 00h if fails
CX = 7269h
ES = segment of driver
CF set
AL, BX, DH, and DI destroyed
Program: XDF is a TSR provided with PC-DOS 7.0 to support XDF 1.84M disks,
developed by Roger D. Ivey
Note: After disabling or enabling the driver, a disk change must be performed
or simulated to reset the driver.
--------B-1319-------------------------------
INT 13 - FIXED DISK - PARK HEADS ON ESDI DRIVE (XT286,PS)
AH = 19h
DL = drive
Return: CF set on error
CF clear if successful
AH = status (see #00234 at AH=01h)
SeeAlso: AH=11h
--------d-1319-------------------------------
INT 13 - Future Domain SCSI CONTROLLER - REINITIALIZE DRIVE
AH = 19h
DL = hard drive ID
Return: CF set on error
AH = status code (see #00234 at AH=01h)
CF clear if successful
AH = disk type (03h = fixed disk)
CX:DX = number of 512-byte sectors
Notes: sends SCSI Read Capacity command to get number of logical blocks and
adjusts the result for 512-byte sectors
displays either "Error in Read Capacity Command" or "nnn Bytes per
sector" (nnn=256 or 512, the only sizes supported in the translation
code)
should probably be called when a removable device has its media changed
returns the same values as AH=15h
the TMC-950 does not support any Future Domain BIOS calls; instead,
it provides a full CAM implementation (see INT 4F/AX=8100h)
SeeAlso: AH=15h,AH=1Ah,INT 4F/AX=8100h
--------d-131A-------------------------------
INT 13 - ESDI FIXED DISK - FORMAT UNIT (PS)
AH = 1Ah
AL = defect table entry count
CL = format modifiers (see #00250)
DL = drive (80h,81h)
ES:BX -> defect table (see #00251), ignored if AL=00h
Return: CF set on error
CF clear if successful
AH = status (see #00234 at AH=01h)
Note: if periodic interrupt selected, INT 15/AH=0Fh is called after each
cylinder is formatted
SeeAlso: AH=07h,INT 15/AH=0Fh
Bitfields for ESDI format modifiers:
Bit(s) Description (Table 00250)
4 generate periodic interrupt
3 perform surface analysis
2 update secondary defect map
1 ignore secondary defect map
0 ignore primary defect map
Format of defect table entry [array]:
Offset Size Description (Table 00251)
00h 3 BYTEs relative sector address (little-endian)
03h BYTE flags and defect count
bit 7: last logical sector on track
bit 6: first logical sector on track
bit 5: last logical sector on cylinder
bit 4: logical sectors are pushed onto next track
bits 3-0: number of defects pushed from previous cylinder
--------d-131A-------------------------------
INT 13 - Future Domain SCSI CONTROLLER - GET SCSI PARTIAL MEDIUM CAPACITY
AH = 1Ah
CH = track (bits 8,9 in high bits of CL)
CL = sector (01h to number of sectors/track for drive)
DH = head
DL = hard drive ID
Return: CF set on error
AH = status code (see #00234 at AH=01h)
CX:DX = logical block number of last quickly-accessible block after
given block
Notes: sends SCSI Read Capacity command with the PMI bit set to obtain the
logical block address of the last block after which a substantial
delay in data transfer will be encountered (usually the last block
on the current cylinder). No translation to 512 byte sectors is
performed on the result if data is stored on the disk in other than
512 byte sectors.
the TMC-950 does not support any Future Domain BIOS calls; instead,
it provides a full CAM implementation (see INT 4F/AX=8100h)
SeeAlso: AH=15h,AH=19h"SCSI"
--------d-131B-------------------------------
INT 13 - ESDI FIXED DISK - GET MANUFACTURING HEADER
AH = 1Bh
AL = number of sectors to read
DL = drive
ES:BX -> buffer for manufacturing header (defect list)
Return: CF set on error
CF clear if successful
AH = status
Note: manufacturing header format (Defect Map Record format) can be found
in IBM 70MB, 115MB Fixed Disk Drives Technical Reference
the first sector read contains the manufacturing header with the number
of defect entries and the beginning of the defect map; the remaining
sectors contain the remainder of the defect map
--------d-131B-------------------------------
INT 13 - Future Domain SCSI CONTROLLER - GET POINTER TO SCSI DISK INFO BLOCK
AH = 1Bh
DL = hard drive ID
Return: CF set on error
AH = status code (see #00234 at AH=01h)
CF clear if successful
ES:BX -> SCSI disk information block (see #00252)
Notes: also sets a non-resettable flag which prevents some controller messages
from being displayed
the TMC-950 does not support any Future Domain BIOS calls; instead,
it provides a full CAM implementation (see INT 4F/AX=8100h)
SeeAlso: AH=18h"SCSI",AH=1Ch"SCSI"
Format of Future Domain SCSI disk information block:
Offset Size Description (Table 00252)
00h BYTE drive physical information (see #00253)
01h WORD translated number of cylinders
03h BYTE translated number of heads
04h BYTE translated number of sectors per track (17, 34, or 63)
05h BYTE drive address
bits 0-2: logical unit number
bits 3-5: device number
06h BYTE 01h at initialization
07h BYTE sense code byte 00h, or extended sense code byte 0Ch
08h BYTE 00h
09h BYTE 00h or extended sense code byte 02h (sense key)
0Ah BYTE 00h
0Bh 10 BYTEs copy of Command Descriptor Block (CDB) (see #03236,#03237)
15h DWORD translated number of sectors on device
Bitfields for Future Domain SCSI device physical information:
Bit(s) Description (Table 00253)
0 ???
1 device uses parity
2 256 bytes per sector instead of 512
3 don't have capacity yet???
4 disk is removable
5 logical unit number is not present
--------d-131C-------------------------------
INT 13 - Future Domain SCSI CONTROLLER - GET POINTER TO FREE CONTROLLER RAM
AH = 1Ch
DL = hard drive ID (any valid SCSI hard disk)
Return: CF set on error
AH = status code (see #00234 at AH=01h)
CF clear if successful
ES:BX -> first byte of free RAM on controller
Notes: the Future Domain TMC-870 contains 1024 bytes of RAM at offsets 1800h
to 1BFFh on-board the controller for storing drive information and
controller status; ES:BX points to the first byte available for other
uses
ES contains the segment at which the controller resides; the
controller's two memory-mapped I/O ports are at offsets 1C00h, 1E00h
SeeAlso: AH=1Bh"SCSI"
--------d-131C-------------------------------
INT 13 U - ESDI FIXED DISK - ???
AH = 1Ch
AL = subfunction (01h-06h)
DL = drive (80h,81h)
???
Return: ???
Note: these functions perform a controller command 0612h without DMA
SeeAlso: AX=1C08h,PORT 3510h"ESDI"
--------d-131C08-----------------------------
INT 13 U - ESDI FIXED DISK - GET COMMAND COMPLETION STATUS
AX = 1C08h
DL = drive (80h,81h)
ES:BX -> buffer for Command Complete Status Block (see #00254)
Return: CF set on error
CF clear if successful
AH = status (see #00234 at AH=01h)
SeeAlso: AX=1C09h,AX=1C0Ah,PORT 3510h"ESDI"
Format of ESDI Command Complete Status Block:
Offset Size Description (Table 00254)
00h BYTE 07h
01h BYTE size of block in words (07h)
02h BYTE command error code (see #00255)
03h BYTE command status code (see #00256)
04h BYTE device error code, group 1 (see #00257)
05h BYTE device error flags, group 2 (see #00258)
06h WORD number of unprocessed sectors due to abnormal termination
08h DWORD last Relative Sector Address processed by command
0Ch WORD number of sectors corrected by ECC codes
(Table 00255)
Values for ESDI command error code:
00h successful
01h parameter invalid
02h unknown function
03h unsupported command
04h command cancelled
05h unknown function
06h controller diagnostics failed
07h formatting failed
08h format error in primary map
09h format error in secondary map
0Ah diagnostic failure during formatting
0Bh warning: secondary map too large during formatting
0Ch warning: non-zero defect
0Dh system checksum error during formatting
0Eh warning: incompatible device
0Fh warning: push table overflowed
10h warning: more than 15 sectors pushed to next cylinder
11h internal hardware error
12h warning: errors found while verifying sectors
13h invalid device
FFh device error
(Table 00256)
Values for ESDI command status code:
01h successful
03h successful after ECC
05h successful after retries
06h format partially completed
07h successful after ECC and retries
08h command completed with warning (see #00255)
09h abort complete
0Ah reset complete
0Bh data transfer ready (no status block)
0Ch command completed with failure (see #00257,#00258)
0Dh DMA error
0Eh command block error (see #00255)
0Fh bad attention code
SeeAlso: #00257
(Table 00257)
Values for ESDI device error code, group 1:
00h successful
01h seek fault detected by device
02h interface fault
03h sector ID not found
04h disk not formatted
05h unrecoverable ECC error
06h ECC error in sector ID
07h invalid relative sector address
08h timeout
09h sector defective
0Ah disk changed (removable media)
0Bh selection error
0Ch write protected (removable media)
0Dh write fault
0Eh read fault
0Fh no index or sector pulse
10h device not ready
11h seek error detected by adapter
12h bad format
13h volume overflow
14h data address mark not found
15h sector ID not found
16h missing device configuration data
17h first/last relative sector flags missing
18h track empty
81h timeout while waiting for stop
82h timeout while waiting for end of data transfer
84h stopped awaiting data transfer during formatting
85h timeout while waiting for head switch
86h timeout while awaiting DMA completion
SeeAlso: #00256,#00258
Bitfields for ESDI device error flags, group 2:
Bit(s) Description (Table 00258)
7-5 unused
4 ready
3 selected
2 write fault
1 on track 0
0 seek/command complete
SeeAlso: #00257
--------d-131C09-----------------------------
INT 13 U - ESDI FIXED DISK - GET DEVICE STATUS
AX = 1C09h
DL = drive (80h,81h)
ES:BX -> buffer for Device Status Block (see #00259)
Return: CF set on error
CF clear if successful
AH = status (see #00234 at AH=01h)
SeeAlso: AX=1C08h,AX=1C0Ah,PORT 3510h"ESDI"
Format of ESDI Device Status Block:
Offset Size Description (Table 00259)
00h BYTE 08h
01h BYTE number of words in block (09h)
02h BYTE error flags
03h BYTE unused
04h BYTE command error code (see #00255)
05h BYTE command status code (see #00256)
06h WORD ESDI standard status
08h 5 WORDs ESDI vendor-specific status codes
--------d-131C0A-----------------------------
INT 13 U - ESDI FIXED DISK - GET DEVICE CONFIGURATION
AX = 1C0Ah
DL = drive (80h,81h)
ES:BX -> buffer for Drive Configuration Status Block (see #00260)
Return: CF set on error
CF clear if successful
AH = status (see #00234 at AH=01h)
Note: device configuration format can be found in IBM ESDI Fixed Disk Drive
Adapter/A Technical Reference
SeeAlso: AX=1C08h,AX=1C0Bh,AX=1C0Ch
Format of ESDI Drive Configuration Status Block:
Offset Size Description (Table 00260)
00h BYTE 09h
01h BYTE number of words in block (06h)
02h BYTE flags
03h BYTE number of spare sectors per cylinder
04h DWORD total number of usable sectors
08h WORD total number of cylinders
0Ah BYTE tracks per cylinder
0Bh BYTE sectors per track
--------d-131C0B-----------------------------
INT 13 U - ESDI FIXED DISK - GET ADAPTER CONFIGURATION
AX = 1C0Bh
ES:BX -> buffer for Controller Configuration Status Block (see #00261)
Return: CF set on error
CF clear if successful
AH = status (see #00234 at AH=01h)
SeeAlso: AX=1C0Ch
Format of ESDI Controller Configuration Status Block:
Offset Size Description (Table 00261)
00h BYTE E9h
01h BYTE number of words in block (06h)
02h WORD unused (0000h)
04h DWORD controller microcode revision level
08h 2 WORDs unused (0000h)
--------d-131C0C-----------------------------
INT 13 U - ESDI FIXED DISK - GET POS INFORMATION
AX = 1C0Ch
ES:BX -> buffer for POS Information Status Block (see #00262)
Return: CF set on error
CF clear if successful
AH = status (see #00234 at AH=01h)
SeeAlso: AX=1C0Bh
Format of ESDI POS Information Status Block:
Offset Size Description (Table 00262)
00h BYTE EAh
01h BYTE number of words in block (05h)
02h WORD magic value FFDDh
04h BYTE POS register 3
05h BYTE POS register 2
06h BYTE POS register 5 (unused, FFh)
07h BYTE POS register 4 (unused, FFh)
08h BYTE POS register 7 (unused, FFh)
09h BYTE POS register 6 (unused, FFh)
--------d-131C0D-----------------------------
INT 13 U - ESDI FIXED DISK - ???
AX = 1C0Dh
DL = drive (80h,81h)
???
Return: ???
Note: invokes controller command 0614h without DMA
SeeAlso: AH=1Ch"ESDI",AX=1C0Fh,PORT 3510h"ESDI"
--------d-131C0E-----------------------------
INT 13 U - ESDI FIXED DISK - TRANSLATE RBA TO ABA
AX = 1C0Eh
CH = low 8 bits of cylinder number
CL = sector number, high two bits of cylinder number in bits 6 and 7
DH = head number
DL = drive number (80h,81h)
ES:BX -> ABA number
Return: CF set on error
CF clear if successful
AH = status (see #00234 at AH=01h)
Note: ABA (absolute block address) format can be found in IBM ESDI Adapter
Technical Reference by using its Device Configuration Status Block
SeeAlso: AX=1C08h,AX=1C0Fh,PORT 3510h"ESDI"
--------d-131C0F-----------------------------
INT 13 U - ESDI FIXED DISK - ???
AX = 1C0Fh
DL = drive (80h,81h)
???
Return: ???
Note: invokes controller command 0614h without DMA
SeeAlso: AH=1Ch"ESDI",AX=1C0Dh,AX=1C12h,PORT 3510h"ESDI"
--------d-131C12-----------------------------
INT 13 U - ESDI FIXED DISK - ???
AX = 1C12h
DL = drive (80h,81h)
???
Return: ???
Note: invokes controller command 0612h without DMA
SeeAlso: AH=1Ch"ESDI",AX=1C0Fh,PORT 3510h"ESDI"
--------c-131D-------------------------------
INT 13 - IBMCACHE.SYS - CACHE STATUS
AH = 1Dh
AL = subfunction
01h get status record
DL = drive???
Return: ES:BX -> status record (see #00263)
CF set on error
AH = error code
02h set cache status
ES:BX -> status record (see #00263)
DL = drive???
Return: CF set on error
Format of IBMCACHE.SYS status record:
Offset Size Description (Table 00263)
00h DWORD total number of read requests
04h DWORD total number of hits
08h DWORD number of physical disk reads
0Ch DWORD total number of sectors requested by physical disk reads
10h 6 BYTEs ???
16h DWORD pointer to start of error list (see #00264)
1Ah DWORD pointer to end of error list
1Eh WORD ???
20h BYTE using extended memory if nonzero
21h BYTE ???
22h 4 BYTEs ASCII version number
26h WORD cache size in KB
28h WORD sectors per page
Format of IBMCACHE.SYS error list:
Offset Size Description (Table 00264)
00h DWORD relative block address of bad page
04h BYTE drive
05h BYTE sector bit-map
06h WORD next error
--------d-131F-------------------------------
INT 13 - SyQuest - DOOR LATCH/DOOR BUTTON DETECT
AH = 1Fh
AL = subfunction
00h allow media removal
01h prevent media removal (lock door)
DL = drive ID (bit 7 set for hard disks)
Return: CF clear if successful
AH = 00h
CF set on error
AH = error code
00h successful
01h invalid function request
80h timeout
DDh media change requested
SeeAlso: AH=12h"SyQuest",AH=13h"SyQuest",AH=59h"SyQuest"
--------d-1320-------------------------------
INT 13 - DISK - ??? (Western Digital "Super BIOS")
AH = 20h
???
Return: ???
Notes: returns some kind of status related to whether the drive contains its
default media type
QEMM v6.00 calls INT 13/AX=2000h/DL=81h in some cases
--------b-1320-------------------------------
INT 13 U - Compaq, ATAPI Removable Media Device - GET CURRENT MEDIA FORMAT
AH = 20h
DL = drive number (00h,01h)
Return: CF clear if successful
AL = media type (see #00265)
AH = 00h
CF set on error
AH = error code
01h invalid request
30h drive does not support media sense
31h no such drive / media not present
32h non-default media / drive does not support media type
Notes: this function is supported by the 1993/3/8 Compaq ROM BIOS, but only
partially (AL is always 00h when successful) by the 1993/8/3 version
this function is also supported by some recent versions of the Phoenix
486 BIOS
this function does not seem to be supported by some Toshiba BIOSes
(at least before 1995, maybe some laptops??? with 1.44 MB floppies),
because S/DOS 1.0 contains code to bypass a call to this function,
always assuming the drive would not support media sense.
SeeAlso: AH=15h
(Table 00265)
Values for Compaq/ATAPI diskette media type:
03h 720K (1M unformatted)
04h 1.44M (2M unformatted)
06h 2.88M (4M unformatted)
0Ch 360K
0Dh 1.2M
0Eh Toshiba 3mode
0Fh NEC 3mode (1024-byte sectors)
10h ATAPI Removable Media Device
--------c-1320-------------------------------
INT 13 u - QUICKCACHE II v4.20 - DISMOUNT
AH = 20h
AL = drive (00h = A:, etc. or 7Fh for all removable drives???
or FFh for all drives)
Return: AX = status (0000h successful)
Program: QUICKCACHE II is a shareware disk cache by P.R. Glassel and
Associates, Inc.
Desc: flush any dirty buffers for the specified drive(s) and then discard
those sector buffers
SeeAlso: AH=21h"QUICKCACHE",AH=22h"QUICKCACHE",AH=28h
--------d-1321-------------------------------
INT 13 - HARD DISK - PS/1 and newer PS/2 - READ MULTIPLE DISK SECTORS
AH = 21h
AL = number of sectors to write
CH = low byte of 12-bit cylinder number
CL = starting sector (bits 0-5) and bits 8-9 of cylinder (bits 6-7)
DH = head number (bits 0-5) and bits 10-11 of cylinder (bits 6-7)
DL = drive number (80h,81h)
ES:BX -> buffer for data to be read
Return: CF clear if successful
ES:BX buffer filled
CF set on error
AH = status (see #00234 at AH=01h)
Desc: read from the disk using the Multiple Block mode available on newer
IDE drives and some hard disk controllers, which generates an
interrupt only after the end of transferring a group of sectors
rather than after each sector
Notes: must call AH=24h"PS/1" before using this function
input values in CL and DH are not range-checked
the byte at address 0040h:0074h is set to the status of the operation
SeeAlso: AH=02h,AH=22h"PS/1",AH=23h"PS/1",AH=24h"PS/1"
--------c-1321-------------------------------
INT 13 u - QUICKCACHE II v4.20 - FLUSH CACHE
AH = 21h
Return: AX = status (0000h successful)
Desc: immediately write all dirty sectors back to disk
Note: this is one out of several cache flush calls issued by the PTS-DOS 6.51
and S/DOS 1.0 kernel before rebooting. It is called with DL=80h and
conflicts with the PS/2 function of the same function number, because
the kernel does not perform Quickcache's installation check first.
SeeAlso: AH=25h"QUICKCACHE",AH=2Eh,AH=2Fh
--------d-1322-------------------------------
INT 13 - HARD DISK - PS/1 and newer PS/2 - WRITE MULTIPLE DISK SECTORS
AH = 22h
AL = number of sectors to write
CH = low byte of 12-bit cylinder number
CL = starting sector (bits 0-5) and bits 8-9 of cylinder (bits 6-7)
DH = head number (bits 0-5) and bits 10-11 of cylinder (bits 6-7)
DL = drive number (80h,81h)
ES:BX -> buffer containing data to be written
Return: CF clear if successful
CF set on error
AH = status (see #00234 at AH=01h)
Desc: write to the disk using the Multiple Block mode available on newer
IDE drives and some hard disk controllers, which generates an
interrupt only after the end of transferring a group of sectors
rather than after each sector
Notes: must call AH=24h"PS/1" before using this function
input values in CL and DH are not range-checked
the byte at address 0040h:0074h is set to the status of the operation
SeeAlso: AH=03h,AH=21h"PS/1",AH=23h"PS/1",AH=24h"PS/1"
--------c-1322-------------------------------
INT 13 u - QUICKCACHE II v4.20 - ENABLE/DISABLE CACHE
AH = 22h
AL = new state (00h disabled, 01h enabled)
Return: AX = status (0000h successful)
Note: enables/disables caching of all drives
SeeAlso: AH=2Ch,AH=2Dh,AH=32h,AH=33h,AH=A3h,AH=A4h
--------d-1323-------------------------------
INT 13 U - HARD DISK - PS/1 and newer PS/2 - SET CONTROLLER FEATURES REGISTER
AH = 23h
AL = feature number (see #00266)
DL = drive number (80h,81h)
???
Return: CF clear if successful
CF set on error
AH = status (see #00234 at AH=01h)
SeeAlso: AH=21h"PS/1",AH=22h"PS/1",AH=24h"PS/1",AH=25h"PS/1"
(Table 00266)
Values for PS/1 hard disk feature number:
01h select 8-bit data transfers instead of 16-bit
02h enable write cache
22h Write Same, user-specified area
33h disable retries
44h set number of ECC bytes for read long/write long (see AH=0Ah,AH=0Bh)
54h set cache segments
55h disable lookahead
66h disable reverting to power-on defaults
77h disable error correctioni
81h select 16-bit data transfers (default)
82h disable write cache
88h enable error correction (default)
99h enable retries (default)
AAh enable lookahead
BBh set ECC length for read long/write long to four bytes
CCh enable reverting to power-on defaults
DDh Write Same, entire disk
SeeAlso: #P0535
--------c-1323-------------------------------
INT 13 U - QUICKCACHE II v4.20 - GET ??? ADDRESS
AH = 23h
Return: AX = status (0000h successful)
ES = segment of ??? data
--------d-1324-------------------------------
INT 13 - HARD DISK - PS/1 and newer PS/2 - SET MULTIPLE MODE
AH = 24h
AL = number of sectors per block (2,4,8,16)
DL = drive number (80h,81h)
Return: CF clear if successful
CF set onerror
AH = status (see #00234 at AH=01h)
Desc: specify how many sectors the controller should transfer as a group
between operation-complete interrupts when using the Read Multiple
and Write Multiple functions (AH=21h,AH=22h)
Notes: set the number of sectors to 0 to disable multiple-transfer mode
the maximum value for the block size depends on the fixed disk
drive type. The value is stored in byte 15h of the fixed disk
drive parameter table that is created by POST.
the byte at address 0040h:0074h is set to status of operation.
SeeAlso: AH=21h"PS/1",AH=22h"PS/1",AH=23h"PS/1",AH=25h"PS/1"
--------c-1324-------------------------------
INT 13 u - QUICKCACHE II v4.20 - SET SECTORS
AH = 24h
BX = new number of sector buffers in cache
Return: AX = status
0000h successful
0001h failed--size adjusted
8000h cache cannot be resized while enabled
SeeAlso: AH=36h
--------d-1325-------------------------------
INT 13 - HARD DISK - PS/1 and newer PS/2 - IDENTIFY DRIVE
AH = 25h
DL = drive number (80h,81h)
ES:BX-> 512 byte buffer for reply packet
Return: CF clear if successful
CF set on error
AH = status (see #00234 at AH=01h)
buffer filled with ATA/IDE-style drive information block (see #00267)
Desc: retrieves the 256 words of drive data stored on an IDE hard disk
Notes: the byte at address 0040h:0074h is set to the status of the operation
IBM officially classifies this function as optional
SeeAlso: AH=23h"PS/1"
Format of drive information block:
Offset Size Description (Table 00267)
00h WORD general drive configuration (see #00268)
02h WORD number of cylinders
04h WORD reserved
06h WORD number of heads
08h WORD number of unformatted bytes per track
0Ah WORD number of unformatted bytes per sector
0Ch WORD number of sectors per track
0Eh 6 BYTEs vendor unique
14h 20 BYTEs serial number in ASCII, 0000h=not specified)
28h WORD buffer type
2Ah WORD buffer size in 512 byte increments (0000h=not specified)
2Ch WORD number of ECC bytes passed on Read/Write Long cmds
0000h = not specified
2Eh 8 BYTEs firmware revision in ASCII, 0000h=not specified
36h 40 BYTEs model number in ASCII, 0000h=not specified
5Eh WORD bits 15-8 Vendor Unique
bits 7-0 00h = Read/Write Multiple commands not implemented
xxh = Maximum number of sectors that can be
transferred per interrupt on Read and Write
Multiple commands
60h WORD 0000h = cannot perform doubleword I/O
0001h = can perform doubleword I/O
62h WORD capabilities
bit 15-9 0=reserved
bit 8 1=DMA Supported
bit 7-0 Vendor Unique
64h WORD reserved
66h WORD bits 15-8 PIO data transfer cycle timing mode
bits 7-0 Vendor Unique
68h WORD bits 15-8 DMA data transfer cycle timing mode
bits 7-0 Vendor Unique
6Ah WORD bits 15-1 reserved
bit 0 1=the fields reported in tranlation mode are valid
0=the fields reported in translation mode may be valid
6Ch WORD number of current cylinders
6Eh WORD number of current heads
70h WORD number of current sectors per track
72h DWORD current capacity in sectors
76h WORD reserved
78h 136 BYTEs not defined by ATA spec 2.6
100h 64 BYTEs vendor unique
140h 96 BYTEs reserved
Note: the above description is as in the ATA (AT Attachment) Specification.
SeeAlso: #P0516
Bitfields for general drive configuration:
Bit(s) Description (Table 00268)
15 0 reserved for non-magnetic drives
14 format speed tolerance gap required
13 track offset option available
12 data strobe offset option available
11 rotational speed tolerance is > 0.5%
10 disk transfer rate > 10 Mbs
9 disk transfer rate > 5Mbs but <= 10Mbs
8 disk transfer rate <= 5Mbs
7 removable cartridge drive
6 fixed drive
5 spindle motor control option implemented
4 head switch time > 15 usec
3 not MFM encoded
2 soft sectored
1 hard sectored
0 reserved (0)
--------c-1325-------------------------------
INT 13 u - QUICKCACHE II v4.20 - SET FLUSH INTERVAL
AH = 25h
BX = interval
Return: AX = status (0000h successful)
Desc: specify how often the cache should write dirty buffers to disk when
buffered writes are enabled
SeeAlso: AH=21h"QUICKCACHE",AH=2Ch,AH=2Eh
--------c-1326-------------------------------
INT 13 U - QUICKCACHE II v4.20 - UNINSTALL
AH = 26h
Return: AX = status
0000h successful
0001h-00FFh interrupt vector which was hooked by another TSR
SeeAlso: AH=27h
--------c-1327--BX0000-----------------------
INT 13 u - QUICKCACHE II v4.20 - INSTALLATION CHECK
AH = 27h
BX = 0000h
Return: AX = 0000h if installed
BX nonzero if installed
BH = major version
BL = binary minor version
Program: QUICKCACHE II is a shareware disk cache by P.R. Glassel and
Associates, Inc.
SeeAlso: AH=26h,AH=A0h,INT 16/AX=FFA5h/CX=1111h
--------c-1328-------------------------------
INT 13 U - QUICKCACHE II v4.20 - SET AUTOMATIC DISMOUNT
AH = 28h
AL = new state (00h disabled, 01h enabled)
Return: AX = status (0000h successful)
SeeAlso: AH=20h"QUICKCACHE"
--------c-1329-------------------------------
INT 13 U - QUICKCACHE II v4.20 - NOP
AH = 29h
Return: AX = 0000h
--------c-132A-------------------------------
INT 13 u - QUICKCACHE II v4.20 - SET BUFFER SIZE
AH = 2Ah
AL = buffer size (1-30)
Return: AX = status (0000h successful)
Desc: specify the number of cache sector buffers to dedicate to buffered read
and write operations
SeeAlso: AH=2Ch,AH=2Dh,AH=39h,AH=3Ah
--------c-132B-------------------------------
INT 13 U - QUICKCACHE II v4.20 - DRIVE ACCESS SOUNDS
AH = 2Bh
AL = new state (00h disabled, 01h enabled)
Return: AX = status (0000h successful)
--------c-132C-------------------------------
INT 13 u - QUICKCACHE II v4.20 - SET BUFFERED WRITES
AH = 2Ch
AL = new state (00h disabled, 01h enabled)
Return: AX = status (0000h successful)
Desc: specify whether the cache should delay disk writes
Note: this function enables or disables delayed writes for all drives; use
AH=38h to change a single drive
SeeAlso: AH=25h"QUICKCACHE",AH=2Dh,AH=2Eh,AH=38h
--------c-132D-------------------------------
INT 13 u - QUICKCACHE II v4.20 - SET BUFFERED READ
AH = 2Dh
AL = new state (00h disabled, 01h enabled)
Return: AX = status (0000h successful)
Desc: specify whether the cache should attempt to read ahead of actual
requests
Note: this function enables or disables read-ahead for all drives; use AH=37h
to change a single drive
SeeAlso: AH=2Ch,AH=37h
--------c-132E-------------------------------
INT 13 u - QUICKCACHE II v4.20 - SET FLUSH COUNT
AH = 2Eh
BX = flush count
Return: AX = status (0000h successful)
Desc: specify how many dirty sectors the cache should write after each flush
interval (see AH=25h"QUICKCACHE") when buffered writes are enabled
SeeAlso: AH=21h"QUICKCACHE",AH=25h"QUICKCACHE",AH=2Ch
--------c-132F-------------------------------
INT 13 - QUICKCACHE II v4.20 - FORCE IMMEDIATE INCREMENTAL FLUSH
AH = 2Fh
Return: AX = status (0000h successful)
Desc: immediately flush up to "flushcount" dirty sectors to disk as if the
flush interval had expired
SeeAlso: AH=21h"QUICKCACHE"
--------c-1330-------------------------------
INT 13 u - QUICKCACHE II v4.20 - GET INFO
AH = 30h
AL = what to get
00h system info (see #00269)
01h drive info (see #00270)
02h access frequency (array of 30 words)
03h drive index
(array of 32 bytes indicating BIOS drive for DOS drive)
DS:DX -> buffer for info
Return: AX = status (0000h successful, 8000h invalid info specifier)
Program: QUICKCACHE II is a shareware disk cache by P.R. Glassel and
Associates, Inc.
Format of QUICKCACHE II system info:
Offset Size Description (Table 00269)
00h BYTE flag: cache enabled
01h BYTE flag: buffered writes enabled
02h BYTE flag: buffered reads enabled
03h BYTE flag: sounds enabled
04h BYTE flag: autodismount enabled
05h BYTE ???
06h BYTE flag: ???
07h BYTE flag: ???
08h BYTE flag: "em_assigned"
09h BYTE flag: emulated EMS
0Ah BYTE single sector bonus
0Bh BYTE "sticky_max"
0Ch BYTE write sector bonus
0Dh BYTE bonus threshold
0Eh WORD flush interval
10h WORD flush count
12h WORD reserve pool size
14h WORD remaining space in reserve pool
16h WORD required free memory
18h WORD total cache sectors
1Ah WORD dirty cache sectors
1Ch BYTE trace buffer size
1Dh BYTE reserved (padding)
SeeAlso: #00270
Format of QUICKCACHE II drive info [16-element array, one element]:
Offset Size Description (Table 00270)
00h BYTE DOS drive number
01h BYTE BIOS drive number
02h BYTE maximum sector number
03h BYTE maximum head number
04h BYTE read buffer size
05h BYTE write buffer size
06h BYTE last status
07h BYTE flag: enabled
08h BYTE flag: buffered write enabled
09h BYTE flag: buffered read enabled
0Ah BYTE flag: in use (drive info is valid)
0Bh BYTE flag: cylinder flush
0Ch BYTE reserved (padding)
0Dh BYTE sectors per track
0Eh WORD sector size
10h WORD sectors assigned
12h WORD dirty sectors
14h WORD reserved sectors
16h WORD number of read errors
18h WORD number of write errors
1Ah DWORD "rio_count"
1Eh DWORD number of cache misses
22h DWORD "wio_count"
26h DWORD "dio_count"
SeeAlso: #00269
--------c-1331-------------------------------
INT 13 U - QUICKCACHE II v4.20 - RESERVE MEMORY
AH = 31h
BX = number of paragraphs of conventional memory to reserve for apps
Return: AX = status (0000h successful)
--------c-1332-------------------------------
INT 13 U - QUICKCACHE II v4.20 - ENABLE CACHING FOR SPECIFIC DRIVE
AH = 32h
AL = drive number (00h=A:)
Return: AX = status (0000h successful)
SeeAlso: AH=22h"QUICKCACHE",AH=33h
--------c-1333-------------------------------
INT 13 U - QUICKCACHE II v4.20 - DISABLE CACHING FOR SPECIFIC DRIVE
AH = 33h
AL = drive number (00h=A:)
Return: AX = status (0000h successful)
SeeAlso: AH=22h"QUICKCACHE",AH=32h
--------c-1334-------------------------------
INT 13 U - QUICKCACHE II v4.20 - SECTOR LOCKING
AH = 34h
AL = function
00h end sector locking/unlocking
01h lock all accessed sectors into cache
02h unlock all accessed sectors and discard from cache
Return: AX = status (0000h successful)
SeeAlso: AH=20h"QUICKCACHE",AH=35h
--------c-1335-------------------------------
INT 13 U - QUICKCACHE II v4.20 - SET LOCK POOL SIZE
AH = 35h
BX = number of sectors in lock pool
Return: AX = status (0000h successful)
Desc: specify the number of cache sector buffers which may be dedicated to
data locked into the cache
SeeAlso: AH=34h
--------c-1336-------------------------------
INT 13 U - QUICKCACHE II v4.20 - SET TRACE BUFFER SIZE
AH = 36h
AL = new size of trace buffer
Return: AX = status (0000h successful)
Note: called with AL=05h during an INT 13/AH=24h"QUICKCACHE" call
SeeAlso: AH=24h"QUICKCACHE"
--------c-1337-------------------------------
INT 13 U - QUICKCACHE II v4.20 - SET BUFFERED READS FOR SPECIFIC DRIVE
AH = 37h
AL = new state (00h disabled, else enabled)
DL = drive number (00h = A:)
Return: AX = status (0000h successful)
SeeAlso: AH=2Dh,AH=38h
--------c-1338-------------------------------
INT 13 U - QUICKCACHE II v4.20 - SET BUFFERED WRITES FOR SPECIFIC DRIVE
AH = 38h
AL = new state (00h disabled, else enabled)
DL = drive number (00h = A:)
Return: AX = status (0000h successful)
SeeAlso: AH=2Ch,AH=37h
--------c-1339-------------------------------
INT 13 U - QUICKCACHE II v4.20 - SET READ BUFFER SIZE FOR SPECIFIC DRIVE
AH = 39h
AL = new size of read buffer
DL = drive number (00h = A:)
Return: AX = status (0000h successful)
Program: QUICKCACHE II is a shareware disk cache by P.R. Glassel and
Associates, Inc.
SeeAlso: AH=2Ah,AH=3Ah
--------c-133A-------------------------------
INT 13 U - QUICKCACHE II v4.20 - SET WRITE BUFFER SIZE FOR SPECIFIC DRIVE
AH = 3Ah
AL = new size of write buffer
DL = drive number (00h = A:)
Return: AX = status (0000h successful)
SeeAlso: AH=2Ah,AH=39h
--------c-133B-------------------------------
INT 13 U - QUICKCACHE II v4.20 - ENABLE/DISABLE ???
AH = 3Bh
AL = new state of ??? (01h enabled, else disabled)
Return: AX = status (0000h successful)
Note: is affected by the flag reported at offset 05h of the system info
returned by AH=30h, and sets the flag at offset 06h
SeeAlso: AH=3Ch
--------c-133C-------------------------------
INT 13 U - QUICKCACHE II v4.20 - ENABLE/DISABLE ???
AH = 3Ch
AL = new state of ??? (01h enabled, else disabled)
Return: AX = status (0000h successful)
Note: is affected by the flag reported at offset 05h of the system info
returned by AH=30h, and sets the flag at offset 07h
SeeAlso: AH=3Bh
--------c-133D-------------------------------
INT 13 U - QUICKCACHE II v4.20 - ENABLE/DISABLE CYLINDER FLUSH FOR DRIVE
AH = 3Dh
AL = new state (01h enabled, else disabled)
DL = drive number (00h = A:)
Return: AX = status (0000h successful)
--------c-133E-------------------------------
INT 13 U - QUICKCACHE II v4.20 - SET SINGLE-SECTOR BONUS
AH = 3Eh
AL = new value for bonus
Return: AX = status (0000h successful)
Desc: specify the bonus score to give to single-sector transfers in order to
keep those sectors in the cache longer
--------c-133F-------------------------------
INT 13 U - QUICKCACHE II v4.20 - SET BONUS THRESHOLD
AH = 3Fh
AL = new value for bonus threshold
Return: AX = status (0000h successful)
--------c-1340-------------------------------
INT 13 U - QUICKCACHE II v4.20 - SET "sticky_max"
AH = 40h
AL = new value for "sticky_max"
Return: AX = status (0000h successful)
SeeAlso: AH=41h"QUICKCACHE"
--------d-1341--BX55AA-----------------------
INT 13 - IBM/MS INT 13 Extensions - INSTALLATION CHECK
AH = 41h
BX = 55AAh
DL = drive (80h-FFh)
Return: CF set on error (extensions not supported)
AH = 01h (invalid function)
CF clear if successful
BX = AA55h if installed
AH = major version of extensions
01h = 1.x
20h = 2.0 / EDD-1.0
21h = 2.1 / EDD-1.1
30h = EDD-3.0
AL = internal use
CX = API subset support bitmap (see #00271)
DH = extension version (v2.0+ ??? -- not present in 1.x)
Note: the Phoenix Enhanced Disk Drive Specification v1.0 uses version 2.0 of
the INT 13 Extensions API
SeeAlso: AH=42h"INT 13 Ext",AH=48h"INT 13 Ext"
Bitfields for IBM/MS INT 13 Extensions API support bitmap:
Bit(s) Description (Table 00271)
0 extended disk access functions (AH=42h-44h,47h,48h) supported
1 removable drive controller functions (AH=45h,46h,48h,49h,INT 15/AH=52h)
supported
2 enhanced disk drive (EDD) functions (AH=48h,AH=4Eh) supported
extended drive parameter table is valid (see #00273,#00278)
3-15 reserved (0)
--------c-1341-------------------------------
INT 13 U - QUICKCACHE II v4.20 - SAVE/RESTORE ???
AH = 41h
AL = direction
01h save to file
else restore from file
ES:DI -> 1024-byte buffer for ???
Return: AX = status (0000h successful, 8000h failed)
Program: QUICKCACHE II is a shareware disk cache by P.R. Glassel and
Associates, Inc.
SeeAlso: AH=40h"QUICKCACHE"
--------d-1342-------------------------------
INT 13 - IBM/MS INT 13 Extensions - EXTENDED READ
AH = 42h
DL = drive number
DS:SI -> disk address packet (see #00272)
Return: CF clear if successful
AH = 00h
CF set on error
AH = error code (see #00234)
disk address packet's block count field set to number of blocks
successfully transferred
SeeAlso: AH=02h,AH=41h"INT 13 Ext",AH=43h"INT 13 Ext"
Format of disk address packet:
Offset Size Description (Table 00272)
00h BYTE size of packet (10h or 18h)
01h BYTE reserved (0)
02h WORD number of blocks to transfer (max 007Fh for Phoenix EDD)
04h DWORD -> transfer buffer
08h QWORD starting absolute block number
(for non-LBA devices, compute as
(Cylinder*NumHeads + SelectedHead) * SectorPerTrack +
SelectedSector - 1
10h QWORD (EDD-3.0, optional) 64-bit flat address of transfer buffer;
used if DWORD at 04h is FFFFh:FFFFh
--------N-134257DX1234-----------------------
INT 13 U - Beame&Whiteside BWLPD - INSTALLATION CHECK
AX = 4257h ("BW")
DX = 1234h
Return: BX = 414Ch if installed
Program: BWLPD is the printer daemon from the BW-NFS package
SeeAlso: INT 62/AH=00h"ETHDEV"
--------d-1343-------------------------------
INT 13 - IBM/MS INT 13 Extensions - EXTENDED WRITE
AH = 43h
AL = write flags
---v1.0,2.0---
bit 0: verify write
bits 7-1 reserved (0)
---v2.1+ ---
00h,01h write without verify
02h write with verify
DL = drive number
DS:SI -> disk address packet (see #00272)
Return: CF clear if successful
AH = 00h
CF set on error
AH = error code (see #00234)
disk address packet's block count field set to number of blocks
successfully transferred
Note: the BIOS returns CF set/AH=01h (invalid function) if verify is
requested but not supported
SeeAlso: AH=03h,AH=41h"INT 13 Ext",AH=42h"INT 13 Ext",AH=44h
--------d-1344-------------------------------
INT 13 - IBM/MS INT 13 Extensions - VERIFY SECTORS
AH = 44h
DL = drive number
DS:SI -> disk address packet (see #00272)
Return: CF clear if successful
AH = 00h
CF set on error
AH = error code (see #00234)
disk address packet's block count field set to number of blocks
successfully verified
SeeAlso: AH=04h,AH=41h"INT 13 Ext",AH=42h"INT 13 Ext",AH=47h
--------d-1345-------------------------------
INT 13 - IBM/MS INT 13 Extensions - LOCK/UNLOCK DRIVE
AH = 45h
AL = operation
00h lock media in drive
01h unlock media
02h check lock status
DL = drive number
Return: CF clear if successful
AH = 00h
AL = lock state (00h = unlocked)
CF set on error
AH = error code (see #00234)
Notes: this function is required to be supported for any removable drives
numbered 80h or higher
a device may be locked even if no media is present in the drive
up to 255 locks may be placed on a drive, and the media will not
be physically unlocked until all locks have been removed
SeeAlso: AH=41h"INT 13 Ext",AH=46h,AH=49h,INT 15/AH=52h"INT 13 Extensions"
--------d-1346-------------------------------
INT 13 - IBM/MS INT 13 Extensions - EJECT MEDIA
AH = 46h
AL = 00h (reserved)
DL = drive number
Return: CF clear if successful
AH = 00h
CF set on error
AH = error code (see #00234)
SeeAlso: AH=49h,INT 15/AH=52h"INT 13 Extensions"
--------d-1347-------------------------------
INT 13 - IBM/MS INT 13 Extensions - EXTENDED SEEK
AH = 47h
DL = drive number
DS:SI -> disk address packet (see #00272)
Return: CF clear if successful
AH = 00h
CF set on error
AH = error code (see #00234)
Note: this function initiates the seek, and may return before the seek
actually completes
SeeAlso: AH=0Ch,AH=42h"INT 13 Ext"
--------d-1348-------------------------------
INT 13 - IBM/MS INT 13 Extensions - GET DRIVE PARAMETERS
AH = 48h
DL = drive (80h-FFh)
DS:SI -> buffer for drive parameters (see #00273)
Return: CF clear if successful
AH = 00h
DS:SI buffer filled
CF set on error
AH = error code (see #00234)
BUGS: several different Compaq BIOSes incorrectly report high-numbered
drives (such as 90h, B0h, D0h, and F0h) as present, giving them the
same geometry as drive 80h; as a workaround, scan through disk
numbers, stopping as soon as the number of valid drives encountered
equals the value in 0040h:0075h
Dell machines using PhoenixBIOS 4.0 Release 6.0 fail to correctly
handle this function if the flag word at DS:[SI+2] is not 0000h
on entry
SeeAlso: AH=08h,AH=41h,AH=49h,MEM 0040h:0075h
Format of IBM/MS INT 13 Extensions drive parameters:
Offset Size Description (Table 00273)
00h WORD (call) size of buffer
(001Ah for v1.x, 001Eh for v2.x, 42h for v3.0)
(ret) size of returned data
02h WORD information flags (see #00274)
04h DWORD number of physical cylinders on drive
08h DWORD number of physical heads on drive
0Ch DWORD number of physical sectors per track
10h QWORD total number of sectors on drive
18h WORD bytes per sector
---v2.0+ ---
1Ah DWORD -> EDD configuration parameters (see #00278)
FFFFh:FFFFh if not available
---v3.0 ---
1Eh WORD signature BEDDh to indicate presence of Device Path info
20h BYTE length of Device Path information, including signature and this
byte (24h for v3.0)
21h 3 BYTEs reserved (0)
24h 4 BYTEs ASCIZ name of host bus ("ISA" or "PCI")
28h 8 BYTEs ASCIZ name of interface type
"ATA"
"ATAPI"
"SCSI"
"USB"
"1394" IEEE 1394 (FireWire)
"FIBRE" Fibre Channel
30h 8 BYTEs Interface Path (see #00275)
38h 8 BYTEs Device Path (see #00276)
40h BYTE reserved (0)
41h BYTE checksum of bytes 1Eh-40h (two's complement of sum, which makes
the 8-bit sum of bytes 1Eh-41h equal 00h)
Note: if the size is less than 30 on call, the final DWORD will not be
returned by a v2.x implementation; similarly for the Device Path info
SeeAlso: #00277,#03196
Bitfields for IBM/MS INT 13 Extensions information flags:
Bit(s) Description (Table 00274)
0 DMA boundary errors handled transparently
1 cylinder/head/sectors-per-track information is valid
2 removable drive
3 write with verify supported
4 drive has change-line support (required if drive >= 80h is removable)
5 drive can be locked (required if drive >= 80h is removable)
6 CHS information set to maximum supported values, not current media
15-7 reserved (0)
Note: bits 4-6 are only valid if bit 2 is set
SeeAlso: #00273
Format of EDD v3.0 Interface Path:
Offset Size Description (Table 00275)
---ISA---
00h WORD 16-bit base address
02h 6 BYTEs reserved (0)
---PCI---
00h BYTE PCI bus number
01h BYTE PCI device number
02h BYTE PCI function number
03h 5 BYTEs reserved (0)
SeeAlso: #00273,#00276
Format of EDD v3.0 Device Path:
Offset Size Description (Table 00276)
---ATA---
00h BYTE flag: 00h = master, 01h = slave
01h 7 BYTEs reserved (0)
---ATAPI---
00h BYTE flag: 00h = master, 01h = slave
01h BYTE logical unit number
02h 6 BYTEs reserved (0)
---SCSI---
00h BYTE logical unit number
01h 7 BYTEs reserved (0)
---USB---
00h BYTE to be determined
01h 7 BYTEs reserved (0)
---IEEE1394---
00h QWORD 64-bit FireWire General Unique Identifier (GUID)
---FibreChannel---
00h QWORD Word Wide Number (WWN)
SeeAlso: #00273,#00275
Format of Phoenix Enhanced Disk Drive Spec translated drive parameter table:
Offset Size Description (Table 00277)
00h WORD number of cylinders
02h BYTE number of heads
03h BYTE A0h (signature indicating translated table)
04h BYTE number of physical sectors per track
05h WORD starting write precompensation cylinder number
07h BYTE reserved
08h BYTE control byte (see #03198 at INT 41"DISK 0")
09h WORD number of physical cylinders
0Bh BYTE number of physical heads
0Ch WORD cylinder number of landing zone
0Eh BYTE number of logical sectors per track
0Fh BYTE checksum
Program: the Phoenix Enhanced Disk Drive Specification is an addition to the
IBM/MS INT 13 extensions
SeeAlso: #00278,#03196
Format of Phoenix Enhanced Disk Drive Spec Fixed Disk Parameter Table:
Offset Size Description (Table 00278)
00h WORD physical I/O port base address
02h WORD disk-drive control port address
04h BYTE drive flags (see #00279)
05h BYTE proprietary information
bits 7-4 reserved (0)
bits 3-0: Phoenix proprietary (used by BIOS)
06h BYTE IRQ for drive (bits 3-0; bits 7-4 reserved and must be 0)
07h BYTE sector count for multi-sector transfers
08h BYTE DMA control
bits 7-4: DMA type (0-2) as per ATA-2 specification
bits 3-0: DMA channel
09h BYTE programmed I/O control
bits 7-4: reserved (0)
bits 3-0: PIO type (1-4) as per ATA-2 specification
0Ah WORD drive options (see #00280)
0Ch 2 BYTEs reserved (0)
0Eh BYTE extension revision level (high nybble=major, low nybble=minor)
(currently 10h for v1.0 and 11h for v1.1-3.0)
0Fh BYTE 2's complement checksum of bytes 00h-0Eh
8-bit sum of all bytes 00h-0Fh should equal 00h
Note: this structure is also called the Device Paramter Table Extension
(DPTE)
SeeAlso: #00277
Bitfields for Phoenix Enhanced Disk Drive Spec drive flags:
Bit(s) Description (Table 00279)
7 reserved (1)
6 LBA enabled
5 reserved (1)
4 drive is slave
3-0 reserved (0)
SeeAlso: #00278,#00280
Bitfields for Phoenix Enhanced Disk Drive Spec drive options:
Bit(s) Description (Table 00280)
0 fast PIO enabled
1 fast DMA access enabled
2 block PIO (multi-sector transfers) enabled
3 CHS translation enabled
4 LBA translation enabled
5 removable media
6 ATAPI device (CD-ROM)
7 32-bit transfer mode
---v1.1+ ---
8 ATAPI device uses DRQ to signal readiness for packet command
(must be 0 if bit 6 is 0)
10-9 translation type (must be 00 if bit 3 is 0)
00 Phoenix bit-shifting translation
01 LBA-assisted translation
10 reserved
11 proprietary translation
---v3.0---
11 Ultra DMA access enabled
15-12 reserved (0)
SeeAlso: #00278,#00279
--------d-1349-------------------------------
INT 13 - IBM/MS INT 13 Extensions - EXTENDED MEDIA CHANGE
AH = 49h
DL = drive number
Return: CF clear if media has not changed
AH = 00h
CF set if media may have changed
AH = 06h (see #00234)
Note: unlike AH=16h, any drive number may be specified
SeeAlso: AH=16h,AH=41h"INT 13 Ext",AH=46h
--------d-134A-------------------------------
INT 13 - Bootable CD-ROM - INITIATE DISK EMULATION
AH = 4Ah
AL = 00h
DS:SI -> specification packet (see #00281)
Return: CF clear if successful
CF set on error (drive will not be in emulation mode)
AX = return codes
SeeAlso: AH=48h,AX=4B00h,AH=4Ch,AH=4Dh
Format of Bootable CD-ROM Specification Packet:
Offset Size Description (Table 00281)
00h BYTE size of packet in bytes (13h)
01h BYTE boot media type (see #00282)
02h BYTE drive number
00h floppy image
80h bootable hard disk
81h-FFh nonbootable or no emulation
03h BYTE CD-ROM controller number
04h DWORD Logical Block Address of disk image to emulate
08h WORD device specification (see also #00282)
(IDE) bit 0: drive is slave instead of master
(SCSI) bits 7-0: LUN and PUN
bits 15-8: bus number
0Ah WORD segment of 3K buffer for caching CD-ROM reads
0Ch WORD load segment for initial boot image
if 0000h, load at segment 07C0h
0Eh WORD number of 512-byte virtual sectors to load
(only valid for AH=4Ch)
10h BYTE low byte of cylinder count (for INT 13/AH=08h)
11h BYTE sector count, high bits of cylinder count (for INT 13/AH=08h)
12h BYTE head count (for INT 13/AH=08h)
SeeAlso: #00283,AH=08h
Bitfields for Bootable CD-ROM boot media type:
Bit(s) Description (Table 00282)
3-0 media type
0000 no emulation
0001 1.2M diskette
0010 1.44M diskette
0011 2.88M diskette
0100 hard disk (drive C:)
other reserved
5-4 reserved (0)
6 image contains ATAPI driver
7 image contains SCSI driver(s)
SeeAlso: #00281
--------d-134B00-----------------------------
INT 13 - Bootable CD-ROM - TERMINATE DISK EMULATION
AX = 4B00h
DL = drive number or 7Fh to terminate all emulations
DS:SI -> empty specification packet (see #00281)
Return: CF clear if successful
CF set on error (drive will still be in emulation mode)
AX = return codes
DS:SI specification packet filled
SeeAlso: AH=48h,AH=4Ah,AX=4B00h,AH=4Ch,AH=4Dh
--------d-134B01-----------------------------
INT 13 - Bootable CD-ROM - GET STATUS
AX = 4B01h
DL = drive number
DS:SI -> empty specification packet (see #00281)
Return: CF clear if successful
CF set on error
AX = return codes
DS:SI specification packet filled
Note: same as AX=4B00h, but does not terminate emulation
SeeAlso: AH=48h,AH=4Ah,AX=4B00h,AH=4Ch,AH=4Dh
--------d-134C-------------------------------
INT 13 - Bootable CD-ROM - INITIATE DISK EMULATION AND BOOT
AH = 4Ch
AL = 00h
DS:SI -> specification packet (see #00281)
Return: never, if successful
CF set (error while attempting to boot)
AX = error codes
SeeAlso: AH=48h,AH=4Ah,AX=4B00h,AH=4Dh
--------d-134D00-----------------------------
INT 13 - Bootable CD-ROM - RETURN BOOT CATALOG
AX = 4D00h
DS:SI -> command packet (see #00283)
Return: CF clear if successful
CF set on error
AX = return codes
SeeAlso: AH=48h,AH=4Ah,AX=4B00h,AH=4Ch
Format of Bootable CD-ROM "get boot catalog" command packet:
Offset Size Description (Table 00283)
00h BYTE size of packet in bytes (08h)
01h BYTE number of sectors of boot catalog to read
02h DWORD -> buffer for boot catalog
06h WORD first sector in boot catalog to transfer
SeeAlso: #00281
--------d-134E-------------------------------
INT 13 - IBM/MS INT 13 Extensions v2.1+ - SET HARDWARE CONFIGURATION
AH = 4Eh
AL = function
00h enable prefetch
01h disable prefetch
02h set maximum PIO transfer mode
03h set PIO mode 0
04h set default PIO transfer mode
05h enable INT 13h DMA maximum mode
06h disable INT 13h DMA
DL = drive number
Return: CF clear if successful
AH = 00h
AL = status
00h command was safe (only affected specified drive)
01h other devices are affected
CF set on error
AH = error code (see #00234)
Note: DMA and PIO modes are mutually exclusive, so selecting DMA disables
PIO (for either the specified device or all devices on that
controller), and selecting PIO disables DMA
SeeAlso: AH=41h"INT 13 Extensions",AX=5001h"Enhanced Disk Drive"
--------d-135001-----------------------------
INT 13 - Enhanced Disk Drive Spec v3.0 - SEND PACKET COMMAND
AX = 5001h
DL = drive number
ES:BX -> command packet (see #00284)
Return: CF clear if successful
AH = 00h
CF set on error
AH = error code
Desc: send data to and from a serial packet-oriented device, such as IEEE1394
and USB
SeeAlso: AH=41h"INT 13 Extensions",AH=4Eh
Format of Enhanced Disk Drive Spec v3.0 command packet:
Offset Size Description (Table 00284)
00h WORD signature B055h
02h BYTE length of packet in bytes
03h BYTE reserved (0)
04h N BYTEs formatted packet data
--------v-135001------------------------
INT 13 - VIRUS - "Andropinis" - INSTALLATION CHECK
AX = 5001h
Return: AX = 0150h if resident
SeeAlso: AX=FD50h"VIRUS",INT 21/AX=0B56h
--------v-135342CX0001-----------------------
INT 13 - ScanBoot - INSTALLATION CHECK
AX = 5342h ("SB")
CX = 0001h
DX = 0000h
Return: CF clear if ScanBoot installed
AX = 0000h
CX = serial number ("SW" if shareware release)
DX = version
BX,SI,ES destroyed
Program: ScanBoot is a virus-detection TSR by PanSoft
--------d-135501-----------------------------
INT 13 - Seagate ST01/ST02 - Inquiry
AX = 5501h
DH = number of bytes to transfer
DL = drive ID (80h, 81h, ...)
ES:BX -> buffer for results
Return: ES:BX buffer filled with the Inquiry results
Notes: the ST01/ST02 BIOS does not return any success/failure indication,
so all commands must be assumed to have been successful
the ST01/ST02 BIOS always maps its drives after the previous BIOS
drives without changing the BIOS drive count at 0040h:0075h
this command is identical to the SCSI Inquiry command
--------d-135502-----------------------------
INT 13 - Seagate ST01/ST02 - RESERVED
AX = 5502h
--------d-135503-----------------------------
INT 13 - Seagate ST01/ST01 - Set Device Type Qualifier (DTQ)
AX = 5503h
DH = DTQ byte (see #00285)
DL = drive ID (80h, 81h, ...)
Return: nothing
Bitfields for DTQ byte:
Bit(s) Description (Table 00285)
7 reserved
6 SCSI drive attached
5 reserved
4 selected drive is ST225N/NP (Paired)
3 selected drive is ST225N
2 Host Adapter checks parity on the selected drive
1 selected drive has been installed
0 Seagate installation software present
--------d-135504-----------------------------
INT 13 U - Seagate - ??? - RETURN IDENTIFICATION
AX = 5504h
DX = drive (bit 7 set for hard disk)
Return: CF clear if successful
AX = 4321h if ST01/ST02h
AX = 4322h if ??? Seagate controller
CF set on error
SeeAlso: AX=5505h,AX=5514h
--------d-135504-----------------------------
INT 13 - Seagate ST01/ST02 - RETURN IDENTIFICATION
AX = 5504h
DL = drive ID (80h, 81h, ...)
Return: AX = 4321h
BL = selected drive number (00h, 01h)
BH = number of drives attached to Host Adapter (max. 2)
--------d-135505-----------------------------
INT 13 - Seagate - ??? - PARK HEADS
AX = 5505h
DX = drive (bit 7 set for hard disk)
Return: CF clear if successful
CF set on error
SeeAlso: AX=5504h,AX=5515h
--------d-135505-----------------------------
INT 13 - Seagate ST01/ST02 - PARK HEADS
AX = 5505h
DL = drive ID (80h, 81h, ...)
DH = subfunction
00h park heads (SCSI Stop command)
01h un-park heads (SCSI Start command)
Return: nothing
--------d-135506-----------------------------
INT 13 - Seagate ST01/ST02 - SCSI Bus Parity
AX = 5506h
DL = drive ID (80h, 81h, ...)
DH = subfunction
00h disable parity check
01h enable parity check
02h return current parity setting
Return: AL = status
00h parity checking disabled
01h parity checking enabled
--------d-135507-----------------------------
INT 13 - Seagate ST01/ST02 - RESERVED FUNCTIONS
AX = 5507h to 550Dh
Note: officially listed as "reserved"
--------d-135514-----------------------------
INT 13 U - Seagate - ???
AX = 5514h
DX = drive (bit 7 set for hard disk)
Return: CF clear if successful
CF set on error
AX = return value (FEBEh,FEBFh,FEDAh,FEDBh)
SeeAlso: AX=5504h,AX=5515h
--------d-135515-----------------------------
INT 13 U - Seagate - PARK HEADS???
AX = 5515h
DX = drive (bit 7 set for hard disk)
Return: CF clear if successful
CF set on error
Note: appears to be identical to AX=5505h
SeeAlso: AX=5504h,AX=5505h
--------d-1359-------------------------------
INT 13 - SyQuest - Generic SCSI pass through
AH = 59h
CX = HOST_ID, 0-based
DX = 80h
ES:BX pointer to SCSI structure (see #00286)
Return: CF clear
AH = 95h
SeeAlso: AH=12h"SyQuest",AH=13h"SyQuest",AH=1Fh"SyQuest"
Format of SyQuest SCSI structure:
Offset Size Description (Table 00286)
00h WORD opcode (see #00287)
02h BYTE target's SCSI ID
03h BYTE target's logical unit number
04h BYTE data direction (00h no data xfer, 01h data in, FFh data out)
05h BYTE host status
00h successful
01h selection time out
02h data over-run or under-run
06h BYTE target status at command completion
00h successful
02h check status
08h busy
07h BYTE command data block length
08h DWORD request data length
0Ch DWORD result data length (actual length of data transferred)
10h DWORD -> CDB (see #03236,#03237,#03238)
14h DWORD -> data buffer
Note: The handler does not perform a 'Request Sense' command if there was an
error
(Table 00287)
Values for SCSI opcode:
00h verify interface
clears carry flag and returns if function is available
01h returns the ID of the INT 13h Handler in a NULL terminated string of
length less than 40 byte including the terminator.
The string is stored in the buffer pointed by p_buf.
02h device mapping info. The caller provides a one byte buffer.
The handler stores the Int 13h Device ID (80h or above) in the buffer.
It stores 0 if that target does not exists.
03h execute SCSI command
04h device reset
05h SCSI bus reset
SeeAlso: #00286
--------d-1370-------------------------------
INT 13 - Priam EDVR.SYS DISK PARTITIONING SOFTWARE???
AH = 70h
???
Return: ???
Note: Priam's EDISK.EXE (FDISK replacement) and EFMT.EXE (low-level
formatting program) make this call, presumably to EDVR.SYS (the
partitioning driver)
SeeAlso: AH=ADh
----------1375-------------------------------
INT 13 - ???
AH = 75h
???
Return: AH = ???
???
Note: intercepted by PC-Cache (v5.1 only)
----------1376-------------------------------
INT 13 - ???
AH = 76h
???
Return: AH = ???
???
Note: intercepted by PC-Cache (v5.1 only)
--------c-137B00-----------------------------
INT 13 - NOW! v3.05 - GET INFORMATION
AX = 7B00h
CX:DX -> 1F8h-byte buffer for information record (see #00288)
Return: AX = 0000h
BX = segment of main resident code
ES = ???
Program: NOW! is a disk cache by Vertisoft Systems, Inc.
SeeAlso: AX=7B02h,AH=EFh
Format of NOW! information record:
Offset Size Description (Table 00288)
00h 80 BYTEs name of directory from which NOW! was started
50h 424 BYTEs ???
81h ? BYTEs array of bytes for ???
F7h 250 BYTEs array of 25 entries, one per drive???
Offset Size Description
00h 2 BYTEs ???
02h WORD ???
04h WORD ???
06h 4 BYTEs ???
1F1h 7 BYTEs ???
--------c-137B01-----------------------------
INT 13 - NOW! v3.05 - ???
AX = 7B01h
Return: DX = segment of ???
SeeAlso: AX=7B00h
--------c-137B02-----------------------------
INT 13 - NOW! v3.05 - SET INFORMATION
AX = 7B02h
BX = segment of ??? (10h above a PSP)
CX:DX -> 1F8h-byte information record (see #00288)
Return: ???
Program: NOW! is a disk cache by Vertisoft Systems, Inc.
Note: NOW! grabs the INT 24h value from the PSP reached via the segment in
BX
SeeAlso: AX=7B00h
--------c-137B03-----------------------------
INT 13 - NOW! v3.05 - ???
AX = 7B03h
???
Return: ???
SeeAlso: AX=7B00h,AX=7B04h
--------c-137B04-----------------------------
INT 13 - NOW! v3.05 - ???
AX = 7B04h
???
Return: ???
SeeAlso: AX=7B03h
--------c-137B05-----------------------------
INT 13 - NOW! v3.05 - GET DISK ACCESSES???
AX = 7B05h
Return: BX:AX = number of physical accesses???
DX:CX = total disk accesses???
SeeAlso: AX=7B00h,AX=7B06h
--------c-137B06-----------------------------
INT 13 - NOW! v3.05 - GET ???
AX = 7B06h
BX = ???
Return: AX = 0000h
BX = ???
SeeAlso: AX=7B05h,AX=7B07h
--------c-137B07-----------------------------
INT 13 - NOW! v3.05 - GET ???
AX = 7B07h
Return: AX = ???
BX = ???
CX = ???
DX = ???
SeeAlso: AX=7B06h
--------c-137B08-----------------------------
INT 13 - NOW! v3.05 - ???
AX = 7B08h
CX = ??? (default 00h)
Return: ???
SeeAlso: AX=7B00h
--------c-1380--CX6572-----------------------
INT 13 - FAST! v4.02+ - API
AH = 80h
CX = 6572h
DX = 1970h
ES:BX -> request packet (see #00290)
AL = function number (see #00289)
Return: AH = status (except function 06h)
00h if successful
01h invalid function
05h not supported by the installed variant
CF clear if successful
CF set on error
AL may be destroyed
Program: FAST! is a disk cache by Future Computing Systems and marketed by
BLOC Publishing Corp.
SeeAlso: AX=8001h,AX=8006h,AX=8007h
Index: hotkeys;FAST!
(Table 00289)
Values for FAST! function:
01h get cache information (see AX=8001h)
04h disable cache
05h enable cache and reset statistics
06h installation check (see AX=8006h)
07h unhook interrupts (see AX=8007h)
09h flush cache
0Ah (v4.02+) enable staged writes
0Bh (v4.02+) disable staged writes
0Ch (v4.02+) enable beep on flush
0Dh (v4.02+) disable beep on flush
0Eh ???
0Fh ???
10h (v4.12+) enable hotkeys
11h (v4.12+) disable hotkeys
12h (v4.13+) set idle delay
13h (v4.13+) set flush dirty percentage
14h (v5.00+) enable mouse checks
15h (v5.00+) disable mouse checks
16h (v5.00d+) reduce cache size to minimum
17h (v5.00d+) increase cache size to maximum
Format of FAST! request packet:
Offset Size Description (Table 00290)
00h DWORD pointer to 19-byte signature string (see #00291)
04h DWORD pointer to buffer for data (if needed by function)
(Table 00291)
Values for FAST! v4.04-v5.03 signature string:
13h 07h 06h 08h 11h 18h 0Fh 0Eh 02h 18h 13h 08h 0Bh 08h 01h 00h 04h 08h 15h
--------c-138001CX6572-----------------------
INT 13 - FAST! v4.02+ - GET CACHE INFORMATION
AX = 8001h
CX = 6572h
DX = 1970h
ES:BX -> request packet (see #00292)
Return: AH = 00h if successful
SeeAlso: AH=80h,AX=8006h
Format of FAST! request packet:
Offset Size Description (Table 00292)
00h DWORD -> 19-byte signature string (see #00291)
04h DWORD -> buffer for cache information (see #00293)
Format of FAST! cache information (v5.00-5.03):
Offset Size Description (Table 00293)
00h WORD binary version number of FAST! (v5.00 = 01F4h)
02h BYTE revision letter (61h = X.XXa, 62h = X.XXb, etc.)
03h BYTE FAST! variant
(01h = FASTE, 02h = FASTX BIOS, 04h = FASTC, 20h = FASTX XMS)
04h DWORD total number of read requests
08h DWORD number of physical disk reads
0Ch DWORD grabbed hash buckets
10h DWORD "st_386mem"
14h DWORD total number of writes (only counted when staging enabled)
18h DWORD number of physical disk writes (only when staging enabled)
1Ch DWORD number of write errors while flushing cache
20h WORD flags1 (see #00294)
22h WORD flags
bit 0: ???
bit 1: staged writes enabled
24h WORD ???
26h WORD maximum cache size in KB
28h WORD minimum cache size in KB
2Ah WORD segment of first cache buffer (FASTC)
segment of EMS page frame (FASTE)
XMS handle (FASTX XMS)
2Ch WORD number of hash buckets containing no entries
2Eh WORD number of hash buckets containing one entry
30h WORD number of hash buckets containing two entries
32h WORD number of hash buckets containing three entries
34h WORD number of hash buckets containing four entries
36h WORD number of hash buckets containing five entries
38h WORD maximum contiguous sectors
3Ah WORD hash factor
3Ch WORD number of paragraphs of memory used below 1M
3Eh WORD entries per hash bucket
40h WORD idle delay in seconds
42h 2 BYTEs ???
44h WORD staged write threshold percentage
46h 2 BYTEs ???
48h WORD number of dirty sectors
4Ah WORD number of staged write buffers
4Ch WORD current cache size in KB
4Eh WORD beep frequency in Hz
50h WORD ???
52h WORD ???
Bitfields for FAST! flags1:
Bit(s) Description (Table 00294)
0 beep on flush
3 hotkeys enabled
4 mouse idle check enabled
8 caching enabled
13 ???
--------c-138006CX6572-----------------------
INT 13 - FAST! v4.02+ - INSTALLATION CHECK
AX = 8006h
CX = 6572h
DX = 1970h
ES:BX -> request packet (see #00295)
Return: AX = 1965h if installed
SeeAlso: AH=80h,AX=8001h,AX=8007h
Format of FAST! request packet:
Offset Size Description (Table 00295)
00h DWORD -> 19-byte signature string (see #00291)
--------c-138007CX6572-----------------------
INT 13 - FAST! v4.02+ - UNHOOK INTERRUPTS
AX = 8007h
CX = 6572h
DX = 1970h
ES:BX -> request packet (see #00296)
Return: AX = 1965h if installed
SeeAlso: AH=80h,AX=8006h
Index: uninstall;FAST!
Format of FAST! request packet:
Offset Size Description (Table 00296)
00h DWORD -> 19-byte signature string (see #00291)
--------c-1381--SI4358-----------------------
INT 13 - Super PC-Kwik v3.20+ - ???
AH = 81h
SI = 4358h
???
Return: ???
Note: PC Tools PC-Cache 5.x and Qualitas Qcache 4.00 are OEM versions of
Super PC-Kwik, and thus support this call (PC-Cache v5.1 corresponds
to PC-Kwik v3.20 and PC-Cache v5.5 to PC-Kwik v3.27)
returns immediately in PC-Cache v5.x
Index: PC-Cache|Qualitas Qcache
--------c-1382--SI4358-----------------------
INT 13 - Super PC-Kwik v3.20+ - ???
AH = 82h
SI = 4358h
???
Return: AL = ???
Note: PC Tools PC-Cache 5.x and Qualitas Qcache 4.00 are OEM versions of
Super PC-Kwik, and thus support this call
SeeAlso: AH=84h
Index: PC-Cache|Qualitas Qcache
--------c-1383--SI4358-----------------------
INT 13 - Super PC-Kwik v3.20+ - ???
AH = 83h
SI = 4358h
AL = ???
ES:BX -> ???
???
Return: ???
Note: PC Tools PC-Cache 5.x and Qualitas Qcache 4.00 are OEM versions of
Super PC-Kwik, and thus support this call
SeeAlso: AH=85h
Index: PC-Cache|Qualitas Qcache
--------c-1384--SI4358-----------------------
INT 13 - Super PC-Kwik v3.20+ - ???
AH = 84h
SI = 4358h
AL = ???
???
Return: AL = ???
Note: PC Tools PC-Cache 5.x and Qualitas Qcache 4.00 are OEM versions of
Super PC-Kwik, and thus support this call
SeeAlso: AH=82h
Index: PC-Cache|Qualitas Qcache
--------c-1385--SI4358-----------------------
INT 13 - Super PC-Kwik v3.20+ - ???
AH = 85h
SI = 4358h
AL = ???
DL = ???
???
Return: ???
Note: PC Tools PC-Cache 5.x and Qualitas Qcache 4.00 are OEM versions of
Super PC-Kwik, and thus support this call (PC-Cache v5.1 corresponds
to PC-Kwik v3.20)
SeeAlso: AH=83h
Index: PC-Cache|Qualitas Qcache
--------c-1386--SI4358-----------------------
INT 13 - Super PC-Kwik v4.00+ - ???
AH = 86h
SI = 4358h
???
Return: ???
Note: Qualitas Qcache v4.00 is an OEM version of Super PC-Kwik v4.00, and
thus supports this call
Index: Qualitas Qcache
--------c-1387--SI4358-----------------------
INT 13 - Super PC-Kwik v4.00+ - ???
AH = 87h
SI = 4358h
???
Return: AH = status??? (00h)
CX = ???
DX = ??? (0000h)
Note: Qualitas Qcache v4.00 is an OEM version of Super PC-Kwik v4.00, and
thus supports this call
Index: Qualitas Qcache
--------c-1388--SI4358-----------------------
INT 13 - Super PC-Kwik v4.00+ - ???
AH = 88h
SI = 4358h
???
Return: AH = status??? (00h)
CX = ???
DX = ??? (0000h)
Note: Qualitas Qcache v4.00 is an OEM version of Super PC-Kwik v4.00, and
thus supports this call
Index: Qualitas Qcache
--------c-1389--SI4358-----------------------
INT 13 - Super PC-Kwik v5.10+ - ???
AH = 89h
SI = 4358h
???
Return: ???
--------c-138A--SI4358-----------------------
INT 13 - Super PC-Kwik v5.10+ - ???
AH = 8Ah
SI = 4358h
???
Return: ???
--------c-138EED-----------------------------
INT 13 - HyperDisk v4.01+ - ???
AX = 8EEDh
???
Return: ???
Program: HyperDisk is a shareware disk cache by HyperWare (Roger Cross)
SeeAlso: AX=8EEEh,AX=8EEFh,AH=EEh,INT 2F/AX=DF00h
--------c-138EEE-----------------------------
INT 13 - HyperDisk v4.01+ - ???
AX = 8EEEh
Return: CF set
AX = CS of HyperDisk resident code
???
Note: identical to AX=8EEFh in HYPERDKX v4.21-4.30
SeeAlso: AX=8EEDh,AX=8EEFh,AH=EEh
--------c-138EEF-----------------------------
INT 13 - HyperDisk v4.01+ - ???
AX = 8EEFh
Return: CF set
AX = CS of HyperDisk resident code
???
Note: identical to AX=8EEEh in HYPERDKX v4.21-4.30
SeeAlso: AX=8EEDh,AX=8EEEh,AH=EEh
--------c-1392--SI4358-----------------------
INT 13 - Super PC-Kwik v5.10+ - ???
AH = 92h
SI = 4358h
???
Return: AH = status??? (00h)
DL = ???
SeeAlso: AH=93h
--------c-1393--SI4358-----------------------
INT 13 - Super PC-Kwik v5.10+ - ???
AH = 93h
SI = 4358h
???
Return: AH = status??? (00h)
AL = ???
SeeAlso: AH=92h
--------c-1394--SI4358-----------------------
INT 13 - Super PC-Kwik v5.10+ - ???
AH = 94h
SI = 4358h
???
Return: ???
--------c-1395--SI4358-----------------------
INT 13 - Super PC-Kwik v5.10+ - ???
AH = 95h
SI = 4358h
???
Return: AH = status??? (00h)
DX = ???
--------c-1396--SI4358-----------------------
INT 13 - Super PC-Kwik v5.10+ - ???
AH = 96h
SI = 4358h
AL = ??? (01h)
BX = ??? (0790h)
DL = ???
Return: AH = status??? (00h)
DX = ???
--------c-1397--SI4358-----------------------
INT 13 - Super PC-Kwik v5.10+ - ???
AH = 97h
SI = 4358h
???
Return: ???
--------c-1398--SI4358-----------------------
INT 13 - Super PC-Kwik v5.10+ - ???
AH = 98h
SI = 4358h
???
Return: ???
--------c-1399--SI4358-----------------------
INT 13 - Super PC-Kwik v5.10+ - ???
AH = 99h
SI = 4358h
???
Return: ???
--------c-139A--SI4358-----------------------
INT 13 - Super PC-Kwik v5.10+ - ???
AH = 9Ah
SI = 4358h
???
Return: ???
--------c-139B--SI4358-----------------------
INT 13 - Super PC-Kwik v5.10+ - ???
AH = 9Bh
SI = 4358h
???
Return: ???
--------c-139C--SI4358-----------------------
INT 13 - Super PC-Kwik v5.10+ - ???
AH = 9Ch
SI = 4358h
???
Return: ???
Note: functions 9Ch and 9Dh are the only ones which are fully reentrant; all
other PC-Kwik API calls (INT 13/81h-B0h) return AX=0200h and CF clear
if a previous call is still in progress
--------c-139D--SI4358-----------------------
INT 13 - Super PC-Kwik v5.10+ - ???
AH = 9Dh
SI = 4358h
???
Return: ???
--------c-13A0--SI4358-----------------------
INT 13 - Super PC-Kwik v3.20+ - GET RESIDENT CODE SEGMENT
AH = A0h
SI = 4358h
Return: AX = segment of resident code
Note: PC Tools PC-Cache 5.x and Qualitas Qcache 4.00 are OEM versions of
Super PC-Kwik, and thus support this call (note that PC-Cache v5.5
corresponds to PC-Kwik v3.27)
SeeAlso: INT 16/AX=FFA5h/CX=1111h
Index: PC-Cache|Qualitas Qcache
--------c-13A1--SI4358-----------------------
INT 13 - Super PC-Kwik v3.20+ - FLUSH CACHE
AH = A1h
SI = 4358h
Return: CF clear
AH = 00h (v5.10)
Notes: PC Tools PC-Cache 5.x and Qualitas Qcache 4.00 are OEM versions of
Super PC-Kwik, and thus support this call (note that PC-Cache v5.1
corresponds to PC-Kwik v3.20)
this function is one out of several cache flush calls issued by the
PTS-DOS 6.51 and S/DOS 1.0 kernel before rebooting.
SeeAlso: INT 16/AX=FFA5h/CX=FFFFh
Index: PC-Cache|Qualitas Qcache
--------c-13A2--SI4358-----------------------
INT 13 - Super PC-Kwik v3.20+ - ???
AH = A2h
SI = 4358h
???
Return: ???
Note: PC Tools PC-Cache 5.x and Qualitas Qcache 4.00 are OEM versions of
Super PC-Kwik, and thus support this call (note that PC-Cache v5.1
corresponds to PC-Kwik v3.20)
Index: PC-Cache|Qualitas Qcache
--------c-13A3--SI4358-----------------------
INT 13 U - Super PC-Kwik v5.10+ - DISABLE CACHE
AH = A3h
SI = 4358h
Return: CF clear
SeeAlso: AH=A4h
--------c-13A4--SI4358-----------------------
INT 13 U - Super PC-Kwik v5.10+ - ENABLE CACHE
AH = A4h
SI = 4358h
Return: CF clear
SeeAlso: AH=A3h
--------c-13A5--SI4358-----------------------
INT 13 CU - Super PC-Kwik v5.10+ - PROGRAM TERMINATION NOTIFICATION
AH = A5h
SI = 4358h
Return: AX = ???
SI = ???
Notes: called and used internally by Super PC-Kwik when a program terminates
via INT 21/AH=00h, INT 21/AH=31h, or INT 21/AH=4Ch
this call is not supported by Qualitas Qcache 4.00
Index: PC-Cache
SeeAlso: AH=A6h,AH=A9h,INT 21/AH=00h,INT 21/AH=31h,INT 21/AH=4Ch
--------c-13A6--SI4358-----------------------
INT 13 CU - Super PC-Kwik v5.10+ - PROGRAM LOAD NOTIFICATION
AH = A6h
SI = 4358h
DS:DX -> ASCIZ program name
ES:BX -> EXEC data block (see #01590 at INT 21/AH=4Bh)
Return: ???
Note: called and used internally by Super PC-Kwik when a program is loaded
with INT 21/AX=4B00h
SeeAlso: AH=A5h,AH=A9h,INT 21/AH=4Bh
--------c-13A7--SI4358-----------------------
INT 13 CU - Super PC-Kwik 5.1 - ???
AH = A7h
SI = 4358h
Return: ???
Note: called and used internally by Super PC-Kwik on some INT 21 calls
SeeAlso: AH=A5h,AH=A6h,AH=A8h
--------v-13A759-----------------------------
INT 13 U - Novell DOS 7 - SDRes v27.03 - ???
AX = A759h
Return: AX = 59A7h if installed
DX:BX -> ??? data
Program: SDRes is the resident portion of the Search&Destroy antiviral by
Fifth Generation Systems, as bundled with Novell DOS 7
SeeAlso: INT 21/AH=0Eh/DL=ADh
--------c-13A8--SI4358-----------------------
INT 13 CU - Super PC-Kwik 5.1 - ???
AH = A8h
SI = 4358h
Return: ???
Note: called and used internally by Super PC-Kwik on some INT 21 calls
SeeAlso: AH=A5h,AH=A6h,AH=A7h
--------c-13A9--SI4358-----------------------
INT 13 CU - Super PC-Kwik 5.1 - EXITCODE RETRIEVAL NOTIFICATION
AH = A9h
SI = 4358h
Return: ???
Note: called and used internally by Super PC-Kwik when an application issues
INT 21/AH=4Dh
SeeAlso: AH=A5h,AH=A6h,INT 21/AH=4Dh
--------c-13AA--SI4358-----------------------
INT 13 - Super PC-Kwik v4+ - ???
AH = AAh
SI = 4358h
???
Return: ???
Note: Qualitas Qcache is an OEM version of Super PC-Kwik, and thus supports
this call
--------c-13AB--SI4358-----------------------
INT 13 - Super PC-Kwik v4+ - ???
AH = ABh
SI = 4358h
???
Return: ???
Note: Qualitas Qcache is an OEM version of Super PC-Kwik, and thus supports
this call
--------c-13AC--SI4358-----------------------
INT 13 - Super PC-Kwik v4+ - ???
AH = ACh
SI = 4358h
???
Return: ???
Note: Qualitas Qcache is an OEM version of Super PC-Kwik, and thus supports
this call
--------d-13AD-------------------------------
INT 13 - Priam HARD DISK CONTROLLER???
AH = ADh
???
Return: ???
Note: this call is made from Priam's EFMT.EXE (low-level formatter), probably
to check the ROM type on the controller for their hard disk kits
SeeAlso: AH=70h
--------c-13AD--SI4358-----------------------
INT 13 - Super PC-Kwik v4+ - ???
AH = ADh
SI = 4358h
???
Return: ???
Note: Qualitas Qcache is an OEM version of Super PC-Kwik, and thus supports
this call
--------c-13AE--SI4358-----------------------
INT 13 - Super PC-Kwik v5.10+ - ???
AH = AEh
SI = 4358h
???
Return: ???
--------c-13B0--SI4358-----------------------
INT 13 - Super PC-Kwik v3.20+ - ???
AH = B0h
SI = 4358h
???
Return: ???
Note: PC Tools PC-Cache 5.x is an OEM version of Super PC-Kwik, and thus
supports this call; Qualitas Qcache does not support it
Index: PC-Cache
----------13BF00-----------------------------
INT 13 - Mylex/Adaptec??? - ???
AX = BF00h
BX = PCI address???
DI = 0000h ???
DL = drive number (80h = C:)
Return: ???
Note: some poorly-commented code using this function notes that there had
been a workaround for some Mylex BIOS bug by setting DL to 8Fh
--------d-13E000-----------------------------
INT 13 - XBIOS - COMMAND
AX = E000h
CX = 0
DL = drive number (80h,81h,82h,83h)
ES:BX = pointer to XBIOS Command Block (see #00297)
Return: CF clear if successful
CX = 1234h XBIOS Signature
CF set on error
Program: XBIOS is a driver in some versions of Disk Manager that is
loaded from the disk MBR, replacing the ROM BIOS disk support
e.g. adding LBA mode support, and read/write multiple.
SeeAlso: AH=F9h"SWBIOS"
Format of XBIOS Command Block:
Offset Size Description (Table 00297)
00h BYTE function
0Eh Get XBIOS Configuration Information
Return: buffer points to Ontrackr_Ref_Data structure
(see #00298)
01h BYTE reserved (must be zero before function call)
02h DWORD buffer pointer - Input or output depending on opcode
SeeAlso: #00298,#00299
Format of Ontrackr_Ref_Data structure:
Offset Size Description (Table 00298)
00h WORD Size of structure (33h)
02h BYTE VxD Chain mode
03h 12 BYTEs Drive 1: Ontrackr_VxD_Data structure (see #00299)
0Fh 12 BYTEs Drive 2: Ontrackr_VxD_Data structure
1Bh 12 BYTEs Drive 3: Ontrackr_VxD_Data structure
27h 12 BYTEs Drive 4: Ontrackr_VxD_Data structure (see #00299)
SeeAlso: #00297,#00299
Format of Ontrackr_VxD_Data structure:
Offset Size Description (Table 00299)
00h BYTE INT 13h drive number
01h DWORD Delta skew value
05h BYTE Physical heads (Word 3 of Identify Data)
06h BYTE Physical sectors per track (Word 6 of Identify Data)
07h BYTE Multiple Block Size (Blocking factor)
08h BYTE Read/Write Multiple disable flags
00001000b drive supports r/w multiple
00000100b do not use read multiple
00000010b do not use write multiple
09h WORD Base port address (1F0/170)
0Bh BYTE Hardware interrupt channel (14/15)
SeeAlso: #00298
--------v-13EC00-----------------------------
INT 13 - VIRUS - "Tiso" - INSTALLATION CHECK
AX = EC00h
Return: CF clear if installed
SeeAlso: AH=F2h,INT 12/AX=4350h/BX=4920h
--------d-13EE-------------------------------
INT 13 - SWBIOS - SET 1024-CYLINDER FLAG
AH = EEh
DL = drive number (80h, 81h)
Return: CF clear
AH = 00h
Program: SWBIOS is a TSR by Ontrack Computer Systems
Desc: the following INT 13 call will add 1024 to the specified cylinder
number to get the actual cylinder number desired
Notes: the flag is cleared by all INT 13 calls except AH=EEh and AH=EFh
Disk Manager also supports these calls
this function is also supported by HyperDisk v4.01+ and PC-Cache v5.5+,
in order to allow caching of drives using SWBIOS to access more than
1024 cylinders
for software which supports that call, this function is equivalent to
calling AH=EFh with CX=0400h
SeeAlso: AH=F9h,AH=FEh,INT 16/AX=FFA5h/CX=1111h,INT 2F/AX=DF00h
Index: PC-Cache;huge disks|Disk Manager
--------c-13EF-------------------------------
INT 13 - Ontrack Drive Rocket - SET CYLINDER OFFSET
AH = EFh
CX = cylinder offset for next INT 13 call
DL = drive number (80h, 81h)
Return: CF clear
AH = 00h
Program: Drive Rocket is a drive accelerator by Ontrack Computer Systems for
IDE drives supporting the read multiple and write multiple commands
Desc: the following INT 13 call will add the number given by this call to
the specified cylinder to get the actual cylinder number, then reset
the offset to zero
Note: this function is also supported by the NOW! disk cache, and presumably
newer versions of SWBIOS and Disk Manager
for software which supports this call, AH=EEh is equivalent to calling
this function with CX=0400h
the cylinder offset is reset to 0 by all INT 13 called except AH=EEh
and AH=EFh
SeeAlso: AX=7B00h
--------v-13F2-------------------------------
INT 13 - VIRUS - "Neuroquila" - INSTALLATION CHECK
AH = F2h
Return: CF ??? if installed
SeeAlso: AX=EC00h,INT 12/AX=4350h/BX=4920h,INT 21/AX=0B56h
--------d-13F9-------------------------------
INT 13 - SWBIOS - INSTALLATION CHECK
AH = F9h
DL = drive number (80h,81h)
Return: CF clear
DX = configuration word
bit 15 set if other SWBIOS extensions available
CF set on error
Program: SWBIOS is a TSR by Ontrack Computer Systems
XBIOS is a driver in some versions of Disk Manager that is
loaded from the disk MBR, replacing the ROM BIOS disk support
eg adding LBA mode support, and read/write multiple.
Note: Disk Manager also supports these calls
SeeAlso: AH=EEh,AX=E000h"XBIOS",AH=FFh"EZ-Drive"
Index: Disk Manager
--------v-13FA--DX5945-----------------------
INT 13 - PC Tools v8+ VSAFE, VWATCH - API
AH = FAh
DX = 5945h
AL = function (00h-07h)
Return: varies by function
if not installed:
CF set
AH = 01h
Note: this API is identical to the ones on INT 16/AH=FAh and INT 21/AH=FAh,
so it is listed in its entirety under INT 16/AX=FA00h and following
SeeAlso: INT 16/AX=FA00h
--------v-13FD50------------------------
INT 13 - VIRUS - "Predator" - INSTALLATION CHECK
AX = FD50h
Return: AX = 50FDh if resident
SeeAlso: AX=5001h"VIRUS",INT 16/AH=DDh"VIRUS"
--------d-13FE-------------------------------
INT 13 - SWBIOS - GET EXTENDED CYLINDER COUNT
AH = FEh
DL = drive number (80h, 81h)
Return: CF clear
DX = number of cylinders beyond 1024 on drive
Program: SWBIOS is a TSR by Ontrack Computer Systems
Notes: standard INT 13/AH=08h will return a cylinder count truncated to 1024
BIOS without this extension would return count modulo 1024
Disk Manager also supports these calls
SeeAlso: AH=EEh
----------13FF-------------------------------
INT 13 - EZ-Drive - INSTALLATION CHECK
AH = FFh
DL = drive number (80h)
Return: CF clear
AX = AA55h
ES:BX -> string "AERMH13Vxx", where xx is the version number of
the EZ-Drive driver
CF set on error
Program: EZ-Drive is a driver by Micro House that is loaded from the
hard disk MBR, replacing the ROM BIOS disk support, eg adding
LBA mode support, and read/write multiple.
Note: this function is called by the Windows95 Master Boot Record
SeeAlso: AX=E000h"XBIOS",AH=F9h"SWBIOS"
--------B-13FF-------------------------------
INT 13 - IBM SurePath BIOS - Officially "Private" Function
AH = FFh
--------U-13FFFFBHAA-------------------------
INT 13 - UNIQUE UX Turbo Utility - SET TURBO MODE
AX = FFFFh
BH = AAh
BL = subfunction
00h installation check
Return: AX = 1234h if installed
01h turn on Turbo mode
02h turn off Turbo mode
03h set Turbo mode according to hardware switch
04h set disk access to Turbo mode
05h set disk access to Normal mode
Return: nothing
SeeAlso: INT 15/AH=DFh
Index: installation check;UNIQUE UX Turbo Utility
--------S-14---------------------------------
INT 14 - SERIAL - Digiboard DigiCHANNEL PC/X* Extender INT 14 (XAPCM232.SYS)
InstallCheck: determine whether the "~DOSXAM~" character device exists
Index: installation check;Digiboard DigiCHANNEL
--------S-1400-------------------------------
INT 14 - SERIAL - INITIALIZE PORT
AH = 00h
AL = port parameters (see #00300)
DX = port number (00h-03h) (04h-43h for Digiboard XAPCM232.SYS)
Return: AH = line status (see #00304)
FFh if error on Digiboard XAPCM232.SYS
AL = modem status (see #00305)
Notes: default handler is at F000h:E739h in IBM PC and 100% compatible BIOSes
since the PCjr supports a maximum of 4800 bps, attempting to set 9600
bps will result in 4800 bps
various network and serial-port drivers support the standard BIOS
functions with interrupt-driven I/O instead of the BIOS's polled I/O
the 1993/04/08 Compaq system ROM uses only the low two bits of DX
the default setting used by DOS (MS-DOS 6, DR-DOS 7.03, PTS-DOS) when
(re-)initializing the serial devices is AL=A3h (2400 bps, no parity,
1 stop bit, 8 data bits).
SeeAlso: AH=04h"SERIAL",AH=04h"MultiDOS",AH=05h"SERIAL",AH=57h
SeeAlso: AX=8000h"ARTICOM",AH=81h"COMM-DRV",AH=82h"COURIERS",AH=8Ch
SeeAlso: MEM 0040h:0000h,PORT 03F8h"Serial"
Bitfields for serial port parameters:
Bit(s) Description (Table 00300)
7-5 data rate (110,150,300,600,1200,2400,4800,9600 bps)
4-3 parity (00 or 10 = none, 01 = odd, 11 = even)
2 stop bits (set = 2, clear = 1)
1-0 data bits (00 = 5, 01 = 6, 10 = 7, 11 = 8)
SeeAlso: #00302,#00307,#00308,#00309
--------S-1400-------------------------------
INT 14 - FOSSIL (Fido/Opus/Seadog Standard Interface Level) - INITIALIZE
AH = 00h
AL = initializing parameters
7 - 6 - 5 4 - 3 2 1 - 0
-BAUD RATE- PARITY STOP WORD
BITS LENGTH
000 19200 bd 00 none 0: 1 00: 5
001 38400 bd 01 odd 1: 2 01: 6
010 300 bd 11 even 10: 7
011 600 bd 11: 8
100 1200 bd
101 2400 bd
110 4800 bd
111 9600 bd (4800 on PCjr)
DX = port number (0-3 or FFh if only performing non-I/O setup)
Return: AH = RS-232 status code bits (see #00301)
AL = modem status bits
bit 3: always 1
bit 7: DCD - carrier detect
SeeAlso: #00300,AH=05h"FOSSIL",AH=81h"COMM-DRV",AH=82h"COURIERS"
Bitfields for FOSSIL RS-232 status:
Bit(s) Description (Table 00301)
0 RDA - input data is available in buffer
1 OVRN - data has been lost
5 THRE - room is available in output buffer
6 TSRE - output buffer empty
--------S-1400-------------------------------
INT 14 - Tandy 2000 - SERIAL - RESET COMM PORT
AH = 00h
AL = RS-232C parameters (see #00302)
DL = port number
DH = protocol
bit 0: use XON/XOFF on received data
bit 1: use XON/XOFF when transmitting
Return: AH = line status (see #00304)
AL = modem status (see #00305)
Note: this interrupt is identical to INT 53 on the Tandy 2000
SeeAlso: AH=04h"Tandy 2000",INT 53"Tandy 2000"
--------S-1400-------------------------------
INT 14 - MBBIOS - INITIALIZE PORT
AH = 00h
AL = port parameters (see #00302)
DX = port number
Return: AH = line status (see #00304)
AL = modem status (see #00305)
Note: MBBIOS was written by H. Roy Engehausen
SeeAlso: AH=04h"MBBIOS",AH=05h"MBBIOS",AH=09h"MBBIOS"
Bitfields for MBBIOS port parameters:
Bit(s) Description (Table 00302)
7-5 data rate
(normally 110,150,300,600,1200,2400,4800,9600 bps;
9600,14400,19200,28800,38400,57600,115200,330400 bps
if the high-speed option is set)
4-3 parity (00 or 10 = none, 01 = odd, 11 = even)
2 stop bits (set = 2, clear = 1)
1-0 data bits (00 = 5, 01 = 6, 10 = 7, 11 = 8)
SeeAlso: #00300
--------N-1400--DXFFFF-----------------------
INT 14 - Connection Manager - MODIFY DEFAULT CONNECTION PARAMETERS
AH = 00h
DX = FFFFh
ES:DI -> vector string specifying new parameters
Return: AH = return code (00h,03h) (see #00303)
Program: Connection Manager by Softwarehouse Corp. permits the sharing of
serial ports over an IPX or NetBIOS-based network
Note: if DX is 0-3 on entry, Connection Manager emulates the standard BIOS
function, but redirects the port over the network; if DX is any other
value, the call is chained
SeeAlso: AH=04h/DX=FFFFh,AH=08h/DX=FFFFh,AH=0Ah/DX=FFFFh
(Table 00303)
Values for Connection Manager return code:
00h successful
01h no such connection
02h invalid connection ID
03h invalid subvector found
04h communication error (check BH)
06h insufficient resources, retry later
FFh no data available
--------S-1401-------------------------------
INT 14 - SERIAL - WRITE CHARACTER TO PORT
AH = 01h
AL = character to write
DX = port number (00h-03h) (04h-43h for Digiboard XAPCM232.SYS)
Return: AH bit 7 clear if successful
AH bit 7 set on error
AH bits 6-0 = port status (see #00304)
Notes: various network and serial-port drivers support the standard BIOS
functions with interrupt-driven I/O instead of the BIOS's polled I/O
the 1993/04/08 Compaq system ROM uses only the low two bits of DX
SeeAlso: AH=02h,AH=0Bh"FOSSIL",AX=8000h"ARTICOM",AH=89h,MEM 0040h:007Ch
--------N-1401--DXFFFF-----------------------
INT 14 - Connection Manager - SEND CHARACTER
AH = 01h
DX = FFFFh
BH = character to send
Return: AH = return code (00h-02h,06h) (see #00303)
Notes: if DX is 0-3 on entry, Connection Manager emulates the standard BIOS
function, but redirects the port over the network; if DX is any other
value, the call is chained
this function is provided primarily for compatibility; AH=06h/DX=FFFFh
is the preferred function because it provides better performance
SeeAlso: AH=02h/DX=FFFFh,AH=06h/DX=FFFFh,AH=09h/DX=FFFFh
--------S-1402-------------------------------
INT 14 - SERIAL - READ CHARACTER FROM PORT
AH = 02h
AL = 00h (ArtiCom)
DX = port number (00h-03h (04h-43h for Digiboard XAPCM232.SYS))
Return: AH = line status (see #00304)
AL = received character if AH bit 7 clear
Notes: will timeout if DSR is not asserted, even if function 03h returns
data ready
various network and serial-port drivers support the standard BIOS
functions with interrupt-driven I/O instead of the BIOS's polled I/O
the 1993/04/08 Compaq system ROM uses only the low two bits of DX
SeeAlso: AH=01h,AH=02h"FOSSIL",AH=84h,AH=FCh
--------S-1402-------------------------------
INT 14 - FOSSIL - RECEIVE CHARACTER WITH WAIT
AH = 02h
DX = port number (0-3)
Return: AL = character received
AH = 00h
SeeAlso: AH=01h,AH=02h"SERIAL"
--------N-1402--DXFFFF-----------------------
INT 14 - Connection Manager - RECEIVE CHARACTER
AH = 02h
DX = FFFFh
BH = character to send
Return: AH = return code (00h-02h,04h,FFh) (see #00303)
BH = line status (see #00304)
AL = received character (if any)
Notes: if DX is 0-3 on entry, Connection Manager emulates the standard BIOS
function, but redirects the port over the network; if DX is any other
value, the call is chained
this function is provided primarily for compatibility; AH=07h/DX=FFFFh
is the preferred function because it provides better performance
SeeAlso: AH=02h/DX=FFFFh,AH=03h/DX=FFFFh,AH=06h/DX=FFFFh
--------S-1403-------------------------------
INT 14 - SERIAL - GET PORT STATUS
AH = 03h
AL = 00h (ArtiCom)
DX = port number (00h-03h) (04h-43h for Digiboard XAPCM232.SYS)
Return: AH = line status (see #00304)
AL = modem status (see #00305)
AX = 9E00h if disconnected (ArtiCom)
Note: the 1993/04/08 Compaq system ROM uses only the low two bits of DX
SeeAlso: AH=00h,AH=07h"MultiDOS",AX=8000h"ARTICOM",AH=81h"COURIERS",AX=FD02h
Bitfields for serial line status:
Bit(s) Description (Table 00304)
7 timeout
6 transmit shift register empty
5 transmit holding register empty
4 break detected
3 framing error
2 parity error
1 overrun error
0 receive data ready
Note: for COMM-DRV, if bit 7 is set, an error occurred, and may be retrieved
through a separate call (see AX=8000h"COMM-DRV")
Bitfields for modem status:
Bit(s) Description (Table 00305)
7 carrier detect
6 ring indicator
5 data set ready
4 clear to send
3 delta carrier detect
2 trailing edge of ring indicator
1 delta data set ready
0 delta clear to send
--------N-1403--DXFFFF-----------------------
INT 14 - Connection Manager - RETURN COMMUNICATION PORT STATUS
AH = 03h
DX = FFFFh
AL = connection ID
Return: AH = return code (00h-02h) (see #00303)
BH = line status (see #00306)
BL = modem status (see #00305) (only bits 4,5,7; all others zero)
Notes: if DX is 0-3 on entry, Connection Manager emulates the standard BIOS
function, but redirects the port over the network; if DX is any other
value, the call is chained
SeeAlso: AH=00h/DX=FFFFh,AH=04h/DX=FFFFh,AH=0Ah/DX=FFFFh
Bitfields for Connection Manager line status:
Bit(s) Description (Table 00306)
7 CTS changed
6 current CTS state
5 timeout
4 break
3 framing error
2 parity error
1 overrun
0 current carrier state (0 active, 1 no carrier)
--------S-1404-------------------------------
INT 14 - SERIAL - EXTENDED INITIALIZE (CONVERTIBLE,PS)
AH = 04h
AL = break status
00h if break
01h if no break
BH = parity (see #00307)
BL = number of stop bits
00h one stop bit
01h two stop bits (1.5 if 5 bit word length)
CH = word length (see #00308)
CL = bps rate (see #00309)
DX = port number
Return: AX = port status code (see #00304,#00305)
SeeAlso: AH=00h,AH=1Eh,AX=8000h"ARTICOM"
(Table 00307)
Values for serial port parity:
00h no parity
01h odd parity
02h even parity
03h stick parity odd
04h stick parity even
SeeAlso: #00300,#00308,#00309,#00310
(Table 00308)
Values for serial port word length:
00h 5 bits
01h 6 bits
02h 7 bits
03h 8 bits
SeeAlso: #00300,#00307,#00309,#00345
(Table 00309)
Values for serial port bps rate:
00h 110 (19200 if ComShare installed)
01h 150 (38400 if ComShare installed)
02h 300
03h 600 (14400 if ComShare installed)
04h 1200
05h 2400
06h 4800 (28800 if ComShare installed)
07h 9600
08h 19200
---ComShare---
09h 38400
0Ah 57600
0Bh 115200
SeeAlso: #00300,#00307,#00309,#00346,#00353,AH=36h,#00364,#00606,#02923
--------S-1404-------------------------------
INT 14 - Tandy 2000 - SERIAL - FLUSH COMM BUFFER
AH = 04h
DL = port number
DH = protocol
bit 0: use XON/XOFF on received data
bit 1: use XON/XOFF when transmitting
Return: nothing
Desc: clears the serial interface buffer
Note: this interrupt is identical to INT 53 on the Tandy 2000
SeeAlso: AH=00h"Tandy 2000",INT 53"Tandy 2000"
--------S-1404-------------------------------
INT 14 - FOSSIL - INITIALIZE DRIVER
AH = 04h
DX = port number
optionally BX=4F50h
ES:CX -> byte to be set upon ^C
Return: AX = 1954h (if successful)
BL = maximum function number supported (excluding 7Eh and above)
BH = revision of FOSSIL specification supported
DTR is raised
Note: the word at offset 6 in the interrupt handler contains 1954h, and the
following byte contains the maximum function number supported; this
can serve as an installation check
SeeAlso: AH=05h"FOSSIL",AH=1Ch,INT 11/AH=BCh
Index: installation check;FOSSIL
--------S-1404-------------------------------
INT 14 - MultiDOS Plus IODRV - INITIALIZE PORT
AH = 04h
Return: port initialized; if Hayes-compatible modem, a connection has been
established
Note: the port number is stored at offset BEh in the Task Control Block
(see #00456 at INT 15/AH=13h"MultiDOS")
SeeAlso: AH=00h,AH=05h"MultiDOS",AH=20h"MultiDOS",INT 15/AH=13h"MultiDOS"
--------S-1404-------------------------------
INT 14 - Digiboard DigiCHANNEL PC/X* - CHANGE BAUD RATE
AH = 04h
AL = initializing parameters (see #00310)
BX = baud rate
DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AH = status
00h successful
FFh error
SeeAlso: AH=05h"Digiboard"
Bitfields for Digiboard initializing parameters:
Bit(s) Description (Table 00310)
7-5 unused
4-3 parity (00 none, 01 odd, 11 even)
2 stop bits (0 = one, 1 = two)
1-0 data bits (00 = five, 01 = six, 10 = seven, 11 = eight)
SeeAlso: #00307,#00308
--------S-1404-------------------------------
INT 14 - MBBIOS - INSTALLATION CHECK
AH = 04h
DX = port number
Return: AX = AA55h if installed on specified port
SeeAlso: AH=00h"MBBIOS",AH=09h"MBBIOS"
--------N-1404--DXFFFF-----------------------
INT 14 - Connection Manager - OPEN COMMUNICATION
AH = 04h
DX = FFFFh
ES:DI -> Connection Request protocol vector (see #00311)
Return: AH = return code
00h successful
AL = connection ID
BH = connection type
00h direct connection or no dialing
01h Connection Server dialed phone
01h no response from Connection Server
03h invalid request
Program: Connection Manager by Softwarehouse Corp. permits the sharing of
serial ports over an IPX or NetBIOS-based network
Desc: initiate a connection to the Connection Server listed in the current
Client parameter set
Notes: if DX is 0-3 on entry, Connection Manager emulates the standard BIOS
function, but redirects the port over the network; if DX is any other
value, the call is chained
all subvectors of the Connection Request vector are optional; if
missing, default values are provided by the default connection
parameter set
SeeAlso: AH=00h/DX=FFFFh,AH=05h/DX=FFFFh,AH=06h/DX=FFFFh,AH=07h/DX=FFFFh
SeeAlso: AH=0Ah/DX=FFFFh,AH=0Ch/DX=FFFFh
Format of Connection Manager protocol command vector:
Offset Size Description (Table 00311)
00h WORD (big-endian) total length of command (including this word)
02h WORD (big-endian) command code
EF01h Connection Request
EF06h Modify Connection Parameters
04h N BYTEs list of subvectors (see #00313)
allowable subvector types are 01h-04h,17h,18h for command code
EF01h; 03h,04h for command code EF06h (see #00312)
(Table 00312)
Values for Connection Manager subvector type code:
01h Connection ID
02h Destination ID
03h Asynchronous line parameters
04h Data transfer parameters
09h Line speed
0Ah Serial coding
0Bh Packet size
0Ch Timers
0Dh Special characters
0Eh Target ID
0Fh Telephone number
10h ASCII destination ID
11h Parity
12h Bits per character
13h Number of stop bits
14h Packet timer
15h Intercharacter timer
17h Flags
18h Parameter ranges
19h Flow control
Format of Connection Manager subvector:
Offset Size Description (Table 00313)
00h BYTE length of subvector
01h BYTE type code (see #00312)
02h N-2 BYTEs data, which may include subvectors
SeeAlso: #00314,#00315,#00316,#00317,#00318,#00319,#00320,#00321,#00322,#00323,#00324
SeeAlso: #00325,#00326,#00328,#00329,#00330,#00331,#00332,#00333,#00311
Format of Connection ID subvector:
Offset Size Description (Table 00314)
00h BYTE 03h (length)
01h BYTE 01h (subvector "Connection ID")
02h BYTE connection ID
SeeAlso: #00313
Format of Destination ID subvector:
Offset Size Description (Table 00315)
00h BYTE length
01h BYTE 02h (subvector "Destination ID")
02h N BYTEs subvector(s) of type 0Eh, 0Fh, or 10h
SeeAlso: #00313
Format of Asynchronous line parameters subvector:
Offset Size Description (Table 00316)
00h BYTE length
01h BYTE 03h (subvector "Asynchronous line parameters")
02h N BYTEs subvector(s) of type 09h, 0Ah, or 19h
SeeAlso: #00313
Format of Data transfer parameters subvector:
Offset Size Description (Table 00317)
00h BYTE length
01h BYTE 04h (subvector "Data transfer parameters")
02h N BYTEs subvector(s) of type 0Bh, 0Ch, or 0Dh
SeeAlso: #00313
Format of Line speed subvector:
Offset Size Description (Table 00318)
00h BYTE 04h (length)
01h BYTE 09h (subvector "Line speed")
02h WORD bit map, highest set bit selects speed
bit 0: 2400
bits 1-7: 1800, 1200, 600, 300, 115200, 150, 110 bps
bits 8-15: 57600, 38400, 19200, 14400, 9600, 7200, 4800, 3600
SeeAlso: #00313
Format of Serial coding subvector:
Offset Size Description (Table 00319)
00h BYTE length
01h BYTE 0Ah (subvector "Serial coding")
02h N BYTEs subvector(s) of type 11h, 12h, or 13h
SeeAlso: #00313
Format of Packet size subvector:
Offset Size Description (Table 00320)
00h BYTE 04h (length)
01h BYTE 0Bh (subvector "Packet size")
02h WORD (big-endian) packet size, 1 to 1024
SeeAlso: #00313
Format of Timers subvector:
Offset Size Description (Table 00321)
00h BYTE length
01h BYTE 0Ch (subvector "Timers")
02h 8 BYTEs subvector of type 14h or 15h
SeeAlso: #00313
Format of Special characters subvector:
Offset Size Description (Table 00322)
00h BYTE length
01h BYTE 0Dh (subvector "Special characters")
02h N BYTEs list of ASCII characters to be used as EOM or EOB
SeeAlso: #00313
Format of Target ID:
Offset Size Description (Table 00323)
00h BYTE length
01h BYTE 0Eh (subvector "Target ID")
02h N BYTEs target ID, 1-16 bytes
SeeAlso: #00313
Format of Telephone number subvector:
Offset Size Description (Table 00324)
00h BYTE length
01h BYTE 0Fh (subvector "Telephone number")
02h N BYTEs telephone number
SeeAlso: #00313
Format of ASCII destination ID subvector:
Offset Size Description (Table 00325)
00h BYTE length
01h BYTE 10h (subvector "ASCII destination ID")
02h N BYTEs destination ID
SeeAlso: #00313
Format of Parity subvector:
Offset Size Description (Table 00326)
00h BYTE 03h (length)
01h BYTE 11h (subvector "Parity")
02h BYTE parity type (see #00327)
SeeAlso: #00313
Bitfields for Connection Manager parity type:
Bit(s) Description (Table 00327)
7 odd
6 even
5 mark
4 space
3 none
SeeAlso: #00326
Format of Bits per character subvector:
Offset Size Description (Table 00328)
00h BYTE 03h (length)
01h BYTE 12h (subvector "Bits per character")
02h BYTE bits per character
bit 7: seven
bit 6: eight
SeeAlso: #00313
Format of Number of stop bits subvector:
Offset Size Description (Table 00329)
00h BYTE 03h (length)
01h BYTE 13h (subvector "Number of stop bits")
02h BYTE stop bits
bit 7: one
bit 6: 1.5
bit 5: two
SeeAlso: #00313
Format of Packet timer and Intercharacter timer subvectors:
Offset Size Description (Table 00330)
00h BYTE 04h (length)
01h BYTE subvector type
14h Packet timer
15h Intercharacter timer
02h WORD (big-endian) unit of value representing 20ms
SeeAlso: #00313
Format of Flags subvector:
Offset Size Description (Table 00331)
00h BYTE 03h (length)
01h BYTE 17h (subvector "Flags")
02h BYTE flags
bit 7: queueing requested
SeeAlso: #00313
Format of Parameter ranges subvector:
Offset Size Description (Table 00332)
00h BYTE length
01h BYTE 18h (subvector "Parameter ranges")
02h N BYTEs subvector(s) of type 09h, 11h, 12h, or 13h
SeeAlso: #00313
Format of Flow control subvector:
Offset Size Description (Table 00333)
00h BYTE length (02h-04h)
01h BYTE 19h (subvector "Flow control")
02h BYTE XOFF character
03h BYTE XON character
Note: if length is 02h, flow control is disabled; if length is 03h, any
character will be accepted as XON after an XOFF
SeeAlso: #00313
--------S-140400-----------------------------
INT 14 - Microsoft Systems Journal TSRCOMM INT14 - INSTALLATION CHECK
AX = 0400h
Return: AX = 0FF0h
SeeAlso: AX=0401h,AX=0408h
--------S-140401-----------------------------
INT 14 - Microsoft Systems Journal TSRCOMM INT14 - INITIALIZE MODE
AX = 0401h
CX = mode
Return: nothing
SeeAlso: AX=0400h,AX=0402h
--------S-140402-----------------------------
INT 14 - Microsoft Systems Journal TSRCOMM INT14 - EXTENDED INITIALIZE
AX = 0402h
CL = parameters
Return: nothing
SeeAlso: AX=0400h,AX=0401h
--------S-140403-----------------------------
INT 14 - Microsoft Systems Journal TSRCOMM INT14 - SET TIMEOUT
AX = 0403h
CX = timeout
Return: nothing
SeeAlso: AX=0400h
--------S-140404-----------------------------
INT 14 - Microsoft Systems Journal TSRCOMM INT14 - CLEAR THE RECEIVE BUFFER
AX = 0404h
Return: nothing
SeeAlso: AX=0400h,AX=0405h,AX=0406h
--------S-140405-----------------------------
INT 14 - Microsoft Systems Journal TSRCOMM INT14 - GET RECEIVE BUFFER COUNT
AX = 0405h
Return: AX = number of characters in buffer
SeeAlso: AX=0400h,AX=0404h,AX=0407h
--------S-140406-----------------------------
INT 14 - Microsoft Systems Journal TSRCOMM INT14 - CLEAR THE TRANSMIT BUFFER
AX = 0406h
Return: nothing
SeeAlso: AX=0400h,AX=0404h,AX=0407h
--------S-140407-----------------------------
INT 14 - Microsoft Systems Journal TSRCOMM INT14 - GET TRANSMIT BUFFER COUNT
AX = 0407h
Return: AX = number of characters in the buffer
SeeAlso: AX=0400h,AX=0405h,AX=0406h
--------S-140408-----------------------------
INT 14 - Microsoft Systems Journal TSRCOMM INT14 - UNINSTALL
AX = 0408h
Return: nothing
SeeAlso: AX=0400h
--------S-1405-------------------------------
INT 14 - SERIAL - EXTENDED COMMUNICATION PORT CONTROL (CONVERTIBLE,PS)
AH = 05h
AL = function
00h read modem control register
Return: BL = modem control register (see #00334)
AH = status
01h write modem control register
BL = modem control register (see #00334)
Return: AX = status
DX = port number
Note: also supported by ArtiCom
SeeAlso: AH=00h,AH=1Fh,AX=8000h"ARTICOM",AH=FBh
Bitfields for modem control register:
Bit(s) Description (Table 00334)
0 data terminal ready
1 request to send
2 OUT1
3 OUT2
4 LOOP
5-7 reserved
--------S-1405-------------------------------
INT 14 - FOSSIL - DEINITIALIZE DRIVER
AH = 05h
DX = port number
Return: none
DTR is not affected
SeeAlso: AH=00h,AH=04h"FOSSIL",AH=1Dh,AH=8Dh
--------S-1405-------------------------------
INT 14 - MultiDOS Plus IODRV - READ CHARACTER FROM PORT
AH = 05h
AL = timeout in seconds (00h = never)
Return: AL = status
00h successful
AH = character read
01h read error
02h timed out
other modem status (CTS, DSR) changed
Note: the port number is stored at offset BEh in the Task Control Block
SeeAlso: AH=02h,AH=04h"MultiDOS",AH=06h"MultiDOS",AH=22h"MultiDOS"
SeeAlso: INT 15/AH=13h"MultiDOS"
--------S-1405-------------------------------
INT 14 - Digiboard DigiCHANNEL PC/X* - CHANGE PROTOCOL
AH = 05h
AL = protocol (see #00335)
BH = new XOFF character (00h = current)
BL = new XON character (00h = current)
DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AH = status
00h successful
FFh error
SeeAlso: AH=04h"Digiboard"
Bitfields for Digiboard protocol:
Bit(s) Description (Table 00335)
7-4 unused
3 RTS/CTS
2 DSR
1,0 XON/XOFF
--------S-1405-------------------------------
INT 14 - MBBIOS - DROP DTR AND RTS
AH = 05h
DX = port number
Return: none
SeeAlso: AH=00h"MBBIOS",AH=06h"MBBIOS",AH=06h"FOSSIL"
--------S-1405-------------------------------
INT 14 - PC-MOS/386 v5.01 $serial.sys v5.04 - CHANGE PORT PROTOCOL
AH = 05h
AL = new port protocol (see #00336)
BH = new XOFF character
BL = new XON character
DX = port number
Return: AH = FFh if invalid protocol
SeeAlso: AH=00h,AH=04h"SERIAL",AH=06h"PC-MOS"
Bitfields for PC-MOS/386 serial port protocol:
Bit(s) Description (Table 00336)
7 set to enable/disable CD monitoring, clear to set protocol
---bit 7 set---
4 CD monitoring enabled
5 automatic restart enabled
---bit 7 clear---
0 receive XON/XOFF
1 transmit XON/XOFF
2 DTR/DSR
3 RTS/CTS
----------1405-------------------------------
INT 14 - PhysTechSoft PTS ROM-DOS - SET PACKET
AH = 05h
CX = packet length
DX = port number
DS:SI -> packet
Return: AH = error code (0 = no error, -1 = error)
Notes: The embedded PC can send messages at any time. The managing PC may
force the embedded PC to receive messages only after causing a reset
on the remote embedded PC.
!!!from Matthias Paul:
Description of the high-level control packets:
After the reset the embedded PC will send a 4-byte packet "LOAD"
to the managing PC to indicate it is now able to receive commands.
The managing PC can send commands using 6-byte sized packets starting
with "COMM" followed by a 2-byte command code:
"01" demand setup information
"02" demand sending of diagnostic information
If diagnostic information is requested, the embedded PC will send back
a header packet starting with 4-byte "DIAG" followed by 2 bytes
indicating the count of diagnostic data packets following. Each
diagnostic data packet is sized 134 bytes, starting with the 4-byte
"DIAG", a 2-byte number packet, followed by 128 bytes of data.
If setup information is requested, the embedded PC will send back
8 bytes length packets starting with "SETP" and 2 byte of setup
information of the LOADER and BIOS. The contents varies.
If the embedded PC requests the managing PC to send a BIOS it will
send a 4 byte packet "BIOS".
The managing PC will then send back a 6-byte sized BIOS header packet
starting with "BIOS" and a 2-byte indicator of the BIOS image size
in packets.
The embedded PC will answer by sending a 6 byte packet starting with
"BIOS" followed by the running number of the demanded packet.
The managing PC will then send the requested part of the BIOS image
in a 134 byte sized packet, starting with "BIOS", the 2 byte running
number of the packet and 128 bytes of the actual BIOS info.
The embedded PC acknowledges that it received the BIOS with a 6-byte
packet "BIOS", followed by 2-bytes of 0.
If the embedded PCs requests the managing PC to send the operating
system, it will follow the same proceduce as for requesting the
BIOS. The only difference is that instead of "BIOS", the string
"PTOS" will be used in the communication.
Debug information packets have a length of 32 bytes starting with
the 4-byte "DEBU" signature, and followed by the contents of the
PCU registers in the following order: SP, SS, ES, DS, BP, DI, SI,
DX, CX, BX, AX, IP, CS, Flags. Debug information is send after
reaching the corresponding breakpoint.
Description of the low-level packet protocol:
Before sending a packet the sending side sends a byte 52h and for a
certain time (ca. 1 second for the embedded PC) waits for
confirmation (41h) from the receiving side. If no acknowledge is
received this procedure is repeated 4 more times before an error is
returned.
If acknowledge was received the following information is sent:
2 BYTEs synchronization (50h, 50h)
BYTE data packet size - 1
2 BYTEs CRC of the data
var. data
2 BYTEs synchronization (F0h, F0h)
The receiving side must acknowledge this by sending back two bytes
59h, 59h. If the sender does not receive the confirmation, it
tries 4 more times before returning an error.
SeeAlso: INT 14h/AH=06h, INT 15h/AX=E908h, INT 15h/E909h
--------N-1405--DXFFFF-----------------------
INT 14 - Connection Manager - CLOSE COMMUNICATION
AH = 05h
DX = FFFFh
AL = connection ID
Return: AH = return code
00h successful
01h no such connection
02h invalid connection ID
AL = correct connection ID
Desc: terminate existing connection to allow another one to be established
Note: if DX is 0-3 on entry, Connection Manager emulates the standard BIOS
function, but redirects the port over the network; if DX is any other
value, the call is chained
SeeAlso: AH=04h/DX=FFFFh,AH=0Dh/DX=FFFFh
--------S-1406-------------------------------
INT 14 - FOSSIL - RAISE/LOWER DTR
AH = 06h
DX = port
AL = DTR state to be set
00h = lower
01h = raise
Return: nothing
SeeAlso: AH=05h"MBBIOS",AH=1Ah
--------S-1406-------------------------------
INT 14 - MultiDOS Plus IODRV - WRITE CHARACTER TO PORT
AH = 06h
AL = character
Return: AL = status
00h successful
Notes: the port number is stored at offset BEh in the Task Control Block
if output queue is full, the calling task is blocked until the
character can be stored
SeeAlso: AH=01h,AH=04h"MultiDOS",AH=05h"MultiDOS",AH=21h"MultiDOS"
SeeAlso: INT 15/AH=13h"MultiDOS"
--------S-1406-------------------------------
INT 14 - MBBIOS - RAISE DTR AND RTS
AH = 06h
DX = port number
Return: none
SeeAlso: AH=05h"MBBIOS",AH=07h"MBBIOS"
--------S-1406-------------------------------
INT 14 - PC-MOS/386 v5.01 $serial.sys v5.04 - DRIVER 'ID' FUNCTION
AH = 06h
DX = port number
Return: AH bit 7 set
AL = number of highest function supported by driver
Program: PC-MOS/386 v5.01 is a multitasking, multiuser MS-DOS 5.0-compatible
operating system by The Software Link, Inc.
SeeAlso: AH=18h"PC-MOS"
--------N-1406-------------------------------
INT 14 - TelAPI - WRITE BLOCK
AH = 06h
CX = number of characters to write
DX = port number
ES:DI -> buffer containing data
Return: AX = number of characters actually sent (negative on error)
CX = ???
SeeAlso: AH=07h"TelAPI",AH=E0h"TelAPI",AH=E3h"TelAPI"
----------1406-------------------------------
INT 14 - PhysTechSoft PTS ROM-DOS - GET PACKET
AH = 06h
CX = buffer size for packet
DX = port number
DS:SI -> buffer for packet
Return: AH = error code (00h = no error, FFh = error)
CX = packet size
SeeAlso: AH=05h"PTS ROM-DOS",INT 15/AX=E908h,INT 15/AX=E909h
--------N-1406--DXFFFF-----------------------
INT 14 - Connection Manager - SEND CHARACTER BLOCK
AH = 06h
DX = FFFFh
AL = connection ID
CX = number of characters to send
ES:DI -> buffer containing data to be sent
Return: AH = return code (see #00303)
Program: Connection Manager by Softwarehouse Corp. permits the sharing of
serial ports over an IPX or NetBIOS-based network
SeeAlso: AH=04h/DX=FFFFh,AH=07h/DX=FFFFh,AH=09h/DX=FFFFh
--------S-1407-------------------------------
INT 14 - FOSSIL - RETURN TIMER TICK PARAMETERS
AH = 07h
Return: AL = timer tick interrupt number
AH = ticks per second on interrupt number in AL
DX = approximate number of milliseconds per tick
SeeAlso: AH=16h
--------S-1407-------------------------------
INT 14 - MultiDOS Plus IODRV - GET PORT STATUS
AH = 07h
Return: CL = modem status (see #00305)
CH = character at head of input queue (if any)
DX = number of characters in input queue
Note: the port number is stored at offset BEh in the Task Control Block
SeeAlso: AH=03h,AH=05h"MultiDOS",AH=08h"MultiDOS",AH=09h"MultiDOS"
SeeAlso: AH=23h"MultiDOS",INT 15/AH=13h"MultiDOS"
--------S-1407-------------------------------
INT 14 - MBBIOS - SEND BREAK
AH = 07h
DX = port number
Return: none
SeeAlso: AH=06h"MBBIOS",AH=FAh"EBIOS"
--------S-1407-------------------------------
INT 14 - PC-MOS/386 v5.01 $serial.sys v5.04 - SEND RS-232 BREAK
AH = 07h
BX = duration of break in clock ticks
DX = port number
Return: nothing
--------N-1407-------------------------------
INT 14 - TelAPI - READ BLOCK
AH = 07h
CX = length of buffer in bytes
DX = port number
ES:DI -> buffer for data
Return: AX > 0000h number of characters actually read
AX = 0000h host has closed connection
AX < 0000h error code (see #00397)
CX = ???
Note: translates CRLF into local EOL if the connection is in ASCII mode,
negotiates various Telnet options, and immediately executes several
different Telnet action commands
SeeAlso: AH=06h"TelAPI",AH=E0h"TelAPI",AH=E2h"TelAPI"
--------N-1407--DXFFFF-----------------------
INT 14 - Connection Manager - RECEIVE CHARACTER BLOCK
AH = 07h
DX = FFFFh
AL = connection ID
BL = flag
00h wait for data
nonzero do not wait if no data avaiable
CX = size of receive buffer
ES:DI -> buffer for received characters
Return: AH = return code (00h-02h,04h,FFh) (see #00303)
BH = line status (see #00306)
CX = number of characters received
Program: Connection Manager by Softwarehouse Corp. permits the sharing of
serial ports over an IPX or NetBIOS-based network
SeeAlso: AH=01h/DX=FFFFh,AH=04h/DX=FFFFh,AH=06h/DX=FFFFh
--------S-1408-------------------------------
INT 14 - FOSSIL - FLUSH OUTPUT BUFFER WAITING TILL ALL OUTPUT IS DONE
AH = 08h
DX = port number
Return: nothing
SeeAlso: AH=09h"FOSSIL"
--------S-1408-------------------------------
INT 14 - MultiDOS Plus 4.0 IODRV - GET AND RESET PORT LINE STATUS
AH = 08h
Return: AL = line status (see #00304)
AH destroyed
Notes: the port number is stored at offset BEh in the Task Control Block
on every line status change, the line status is ORed with the line
status accumulator; this function returns the accumulator and clears
it
SeeAlso: AH=03h,AH=04h"MultiDOS",AH=07h"MultiDOS",INT 15/AH=13h"MultiDOS"
--------S-1408-------------------------------
INT 14 - Digiboard DigiCHANNEL PC/X* - ALTERNATE STATUS CHECK
AH = 08h
DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AH = RS232 status bits (see #00304 at AH=03h)
ZF set if no characters queued
ZF clear if character available
AL = next character
SeeAlso: AH=03h,AH=08h"PC-MOS",AH=09h"Digiboard",AH=14h"Digiboard"
--------S-1408-------------------------------
INT 14 - MBBIOS - NON-DESTRUCTIVE READ
AH = 08h
DX = port number
Return: AL = character (if AH bit 0 set)
AH = status (see #00304)
SeeAlso: AH=0Bh"MBBIOS",AH=0Ch"FOSSIL"
--------S-1408-------------------------------
INT 14 - PC-MOS/386 v5.01 $serial.sys v5.04 - INPUT STATUS CHECK
AH = 08h
DX = port number
Return: CF set if carrier loss detected
ZF set if input buffer empty
ZF clear if characters available
AL = next character dequeued
--------N-1408--DXFFFF-----------------------
INT 14 - Connection Manager - RETURN DEFAULT CONNECTION PARAMETERS
AH = 08h
DX = FFFFh
CX = size of buffer for parameters or 0000h to get length
ES:DI -> buffer for parameter vector (see #00311)
Return: AH = return code
00h successful
CX = number of bytes required (if CX=0000h on entry)
CX = number of bytes omitted for lack of space (if CX nonzero)
nonzero invalid request
Program: Connection Manager by Softwarehouse Corp. permits the sharing of
serial ports over an IPX or NetBIOS-based network
SeeAlso: AH=00h/DX=FFFFh,AH=0Fh/DX=FFFFh
--------S-1409-------------------------------
INT 14 - FOSSIL - PURGE OUTPUT BUFFER THROWING AWAY ALL PENDING OUTPUT
AH = 09h
DX = port number
Return: nothing
SeeAlso: AH=08h"FOSSIL",AH=0Ah"FOSSIL",AH=88h
--------S-1409-------------------------------
INT 14 - MultiDOS Plus IODRV - RESET PORT STATUS
AH = 09h
Return: modem status byte cleared
Note: the port number is stored at offset BEh in the Task Control Block
SeeAlso: AH=04h"MultiDOS",AH=07h"MultiDOS",INT 15/AH=13h"MultiDOS"
--------S-1409-------------------------------
INT 14 - Digiboard DigiCHANNEL PC/X* - CLEAR BUFFERS
AH = 09h
DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AH = status
00h successful
FFh error
SeeAlso: AH=08h"Digiboard",AH=0Ah"Digiboard",AH=10h"Digiboard"
--------S-1409-------------------------------
INT 14 - MBBIOS - GET/SET OPTIONS
AH = 09h
AL = option byte (see #00337)
DX = port number???
Return: AL = old option byte
SeeAlso: AH=00h"MBBIOS",AH=04h"MBBIOS",AH=10h"FOSSIL"
Bitfields for MBBIOS option byte:
Bit(s) Description (Table 00337)
0 transmit buffering enabled
2 hardware handshaking enabled
5 high-speed option enabled (see AH=00h"MBBIOS",#00302)
other reserved
--------S-1409-------------------------------
INT 14 - PC-MOS/386 v5.01 $serial.sys v5.04 - RESET I/O BUFFER POINTERS
AH = 09h
DX = port number
Return: nothing
SeeAlso: AH=13h"PC-MOS"
--------N-1409--DXFFFF-----------------------
INT 14 - Connection Manager - SEND BREAK
AH = 09h
DX = FFFFh
AL = connection ID
Return: AH = return code (00h-02h) (see #00303 at AH=00h/DX=FFFFh)
Program: Connection Manager by Softwarehouse Corp. permits the sharing of
serial ports over an IPX or NetBIOS-based network
SeeAlso: AH=02h/DX=FFFFh,AH=03h/DX=FFFFh
--------S-140A-------------------------------
INT 14 - FOSSIL - PURGE INPUT BUFFER THROWING AWAY ALL PENDING INPUT
AH = 0Ah
DX = port number
Return: nothing
SeeAlso: AH=09h"FOSSIL",AH=85h
--------S-140A-------------------------------
INT 14 - Digiboard DigiCHANNEL PC/X* - INPUT QUEUE CHECK
AH = 0Ah
DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AX = number of characters available in buffer
Note: this function is also supported by the PC-MOS/386 v5.01 $serial.sys
SeeAlso: AH=09h"Digiboard",AH=0Dh"Digiboard"
--------S-140A-------------------------------
INT 14 - MBBIOS - WRITE BUFFER
AH = 0Ah
CX = count
ES:DI -> buffer (see #00338)
Return: AX = status (see #00304,#00305)
CX = unsent character count
DI updated
Note: the PACCOM version of MBBIOS does not use CX or ES:DI; instead, ES
contains the segment of a buffer containing the packet to be sent,
which by default will be freed once the packet has been sent. Use
AH=0Ch"MBBIOS" to allocate the buffer.
SeeAlso: AH=01h,AH=0Bh"MBBIOS",AH=0Ch"MBBIOS",AH=19h"FOSSIL"
Format of MBBIOS PACCOM buffer:
Offset Size Description (Table 00338)
00h 504 BYTEs data area
1F8h WORD length of data in data area
1FAh BYTE flags/status
bit 7: don't discard buffer after transmitting data
bit 6: buffer has been transmitted
1FBh BYTE reserved (0) for additional flags/status
1FCh WORD user data
1FEh WORD MBBIOS-internal pointer to next buffer
--------N-140A--DXFFFF-----------------------
INT 14 - Connection Manager - MODIFY ACTIVE CONNECTION PARAMETERS
AH = 0Ah
DX = FFFFh
ES:DI -> vector string containing new parameters (see #00311)
Return: AH = return code (00h-03h,06h) (see #00303)
Program: Connection Manager by Softwarehouse Corp. permits the sharing of
serial ports over an IPX or NetBIOS-based network
Note: any subvectors valid for the Change Parameters command replace the
existing values in the current set
SeeAlso: AH=00h/DX=FFFFh,AH=0Fh/DX=FFFFh
--------S-140B-------------------------------
INT 14 - FOSSIL - TRANSMIT NO WAIT
AH = 0Bh
AL = character
DX = port number
Return: AX = result
0000h character not accepted
0001h character accepted
SeeAlso: AH=01h
--------S-140B-------------------------------
INT 14 - MBBIOS - READ BUFFER
AH = 0Bh
CX = size of buffer
ES:DI -> buffer
Return: AH = composite line status (see #00304) formed by ORing all statuses
on receive interrupts; bit 0 set if additional characters
available
AL = composite modem status (see #00305) formed by ORing all statuses
CX = number of characters actually read
DI updated
Note: the PACCOM version of MBBIOS does not use CX or ES:DI on call,
instead returning ES set to the segment of the buffer containing a
received packet, or 0000h if no packets available; the buffer may
be freed with AH=0Ch"MBBIOS"
SeeAlso: AH=02h,AH=08h"MBBIOS",AH=0Ah"MBBIOS",AH=0Ch"MBBIOS",AH=18h"FOSSIL"
--------N-140B--DXFFFF-----------------------
INT 14 - Connection Manager - PREPARE FOR INBOUND CONNECTION
AH = 0Bh
DX = FFFFh
AL = service name
00h use parameter file or default
01h use specified name
ES:DI -> 16-byte blank-padded name
BH = connection notification
00h program awaiting connection, don't notify user
01h notify user on connecting
BL = connection type
00h connection will use Connection Manager API
Return: AH = return code (00h-02h) (see #00303 at AH=00h/DX=FFFFh)
AL = connection ID if AH=00h
Program: Connection Manager by Softwarehouse Corp. permits the sharing of
serial ports over an IPX or NetBIOS-based network
SeeAlso: AH=04h/DX=FFFFh,AH=0Ch/DX=FFFFh,AH=10h/DX=FFFFh
--------S-140C-------------------------------
INT 14 - FOSSIL - NON-DESTRUCTIVE READ AHEAD
AH = 0Ch
DX = port number
Return: AX = FFFFh character not available
AX = 00xxh character xx available
SeeAlso: AH=08h"MBBIOS",AH=20h"FOSSIL"
--------S-140C-------------------------------
INT 14 - MBBIOS PACCOM support - BUFFER MANAGEMENT
AH = 0Ch
ES = segment of buffer to free, or 0000h to allocate new buffer
Return: ES = segment of allocated buffer (if ES=0000h on entry)
Note: the PACCOM version of MBBIOS uses only ES as buffer address for
AH=0Ah and AH=0Bh
SeeAlso: AH=0Ah"MBBIOS",AH=0Bh"MBBIOS"
--------N-140C--DXFFFF-----------------------
INT 14 - Connection Manager - TEST FOR INBOUND CONNECTION REQUEST
AH = 0Ch
DX = FFFFh
AL = connection ID from AH=0Bh/DX=FFFFh
Return: AH = return code (00h-03h) (see also #00303 at AH=00h/DX=FFFFh)
03h not prepared for inbound connection
AL = connection ID (if AH=00h) or correct connection ID (if AH=02h)
Program: Connection Manager by Softwarehouse Corp. permits the sharing of
serial ports over an IPX or NetBIOS-based network
SeeAlso: AH=03h/DX=FFFFh,AH=04h/DX=FFFFh,AH=0Bh/DX=FFFFh
--------S-140D-------------------------------
INT 14 - FOSSIL - KEYBOARD READ WITHOUT WAIT
AH = 0Dh
Return: AX = result
FFFFh character not available
xxyyh standard IBM-style scan code
SeeAlso: AH=0Eh
--------S-140D-------------------------------
INT 14 - Digiboard DigiCHANNEL PC/X* - GET POINTER TO CH_KEY_RDY FLAG
AH = 0Dh
DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: ES:BX -> CH_KEY_RDY flag (see #00339)
SeeAlso: AH=0Ah"Digiboard"
(Table 00339)
Values for Digiboard CH_KEY_RDY flag:
00h receive buffer empty
FFh characters available
--------S-140D-------------------------------
INT 14 - MBBIOS PACCOM support - SET TXD
AH = 0Dh
AL = new setting (FFh = 1.0)
Return: nothing
Desc: specify the time from RTS to start or packet
SeeAlso: AX=0D00h,AH=0Eh"MBBIOS",AH=0Fh"MBBIOS"
--------N-140D--DXFFFF-----------------------
INT 14 - Connection Manager - TERMINATE CONNECTION CLIENT ACTIVITY
AH = 0Dh
DX = FFFFh
Return: AH = return code
00h successful
nonzero operation not terminated
Program: Connection Manager by Softwarehouse Corp. permits the sharing of
serial ports over an IPX or NetBIOS-based network
Desc: end all Connection Client TSR activity to allow it to be removed from
memory
SeeAlso: AH=05h/DX=FFFFh,AH=6Fh/BX=FFFFh
--------S-140D00-----------------------------
INT 14 - MBBIOS - GET AVAILABLE BYTES
AX = 0D00h
Return: AX = bytes in transmit buffer
CX = bytes in receive buffer
SeeAlso: AH=0Ah"MBBIOS",AH=0Bh"MBBIOS"
--------S-140D01-----------------------------
INT 14 - MBBIOS - LOWER ALL MODEM CONTROL SIGNALS
AX = 0D01h
Return: nothing
Note: this function lowers DTR, RTS, etc.
SeeAlso: AX=0D02h
--------S-140D02-----------------------------
INT 14 - MBBIOS - RAISE ALL MODEM CONTROL SIGNALS
AX = 0D02h
Return: nothing
Note: this function raises DTR, RTS, etc.
SeeAlso: AX=0D01h
--------S-140D03-----------------------------
INT 14 - MBBIOS - SET HANDSHAKE BYTE
AX = 0D03h
CL = new handshake byte
Return: CL = previous handshake byte
Note: this function lowers DTR, RTS, etc.
--------S-140E-------------------------------
INT 14 - FOSSIL - KEYBOARD READ WITH WAIT
AH = 0Eh
Return: AX = xxyyh standard IBM-style scan code
SeeAlso: AH=0Dh"FOSSIL"
--------S-140E-------------------------------
INT 14 - Digiboard DigiCHANNEL PC/X* - WRITE STRING
AH = 0Eh
CX = number of characters to write
ES:BX -> string
DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AX = number of characters actually written
ZF clear if successful
ZF set on error
SeeAlso: AH=0Fh"Digiboard"
--------S-140E-------------------------------
INT 14 - MBBIOS PACCOM support - SET PERSISTENCE
AH = 0Eh
AL = new setting (FFh = 1.0)
Return: nothing
Desc: specify the time from end of DCD to RTS
SeeAlso: AH=0Dh"MBBIOS",AH=0Fh"MBBIOS"
--------N-140E--DXFFFF-----------------------
INT 14 - Connection Manager - SET HARDWARE FLOW STATE
AH = 0Eh
DX = FFFFh
AL = connection ID from AH=04h/DX=FFFFh
BL = RTS state (00h off, 01h on)
Return: AH = return code (00h-03h) (see also #00303 at AH=00h/DX=FFFFh)
03h invalid request (BL not 00h or 01h)
Program: Connection Manager by Softwarehouse Corp. permits the sharing of
serial ports over an IPX or NetBIOS-based network
SeeAlso: AH=03h/DX=FFFFh,AH=0Ah/DX=FFFFh
--------S-140F-------------------------------
INT 14 - FOSSIL - ENABLE/DISABLE FLOW CONTROL
AH = 0Fh
AL = bit mask describing requested flow control (see #00340)
DX = port number
Return: nothing
SeeAlso: AH=09h"MBBIOS",AH=10h"FOSSIL"
Bitfields for FOSSIL requested flow control:
Bit(s) Description (Table 00340)
0 XON/XOFF on transmit (watch for XOFF while sending)
1 CTS/RTS (CTS on transmit/RTS on receive)
2 reserved
3 XON/XOFF on receive (send XOFF when buffer near full)
4-7 all 1
--------S-140F-------------------------------
INT 14 - Digiboard DigiCHANNEL PC/X* - READ STRING
AH = 0Fh
CX = number of characters to read
ES:BX -> buffer
DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AX = number of characters read
ZF clear if successful
ZF set on error (line status or wrong number of characters)
SeeAlso: AH=0Eh"Digiboard"
--------S-140F-------------------------------
INT 14 - MBBIOS PACCOM support - SET SLOT TIME
AH = 0Fh
AL = new setting in clock ticks
Return: nothing
Desc: specify the time from end of DCD to RTS
SeeAlso: AH=0Dh"MBBIOS",AH=0Eh"MBBIOS",AH=10h"MBBIOS"
--------N-140F--DXFFFF-----------------------
INT 14 - Connection Manager - RETURN ACTIVE CONNECTION PARAMETERS
AH = 0Fh
DX = FFFFh
AL = connection ID
CX = size of buffer or 0000h to get length of returned vector
ES:DI -> buffer for connection parameter vector (see #00311)
Return: AH = return code (00h-02h,06h) (see #00303 at AH=00h/DX=FFFFh)
CX = number of bytes which could not be returned because the given
buffer was too small
Program: Connection Manager by Softwarehouse Corp. permits the sharing of
serial ports over an IPX or NetBIOS-based network
SeeAlso: AH=08h/DX=FFFFh,AH=0Ah/DX=FFFFh
--------S-1410-------------------------------
INT 14 - FOSSIL - EXTENDED ^C/^K CHECKING AND TRANSMIT ON/OFF
AH = 10h
AL = bit mask
bit 0: enable/disable ^C/^K checking
bit 1: enable/disable the transmitter
DX = port number
Return: nothing
SeeAlso: AH=0Fh"FOSSIL"
--------S-1410-------------------------------
INT 14 - Digiboard DigiCHANNEL PC/X* - CLEAR RECEIVE BUFFER
AH = 10h
DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AH = status
00h successful
FFh error
SeeAlso: AH=09h"Digiboard",AH=11h"Digiboard"
--------S-1410-------------------------------
INT 14 - MBBIOS PACCOM support - SET CRC WAIT
AH = 10h
AL = new setting in clock ticks (should be at least 5 character times)
Return: nothing
Desc: specify the time from start of last character to dropping RTS
SeeAlso: AH=0Dh"MBBIOS",AH=0Fh"MBBIOS"
--------N-1410--DXFFFF-----------------------
INT 14 - Connection Manager - QUERY SERVICE NAMES
AH = 10h
DX = FFFFh
CL = subfunction
00h search first
01h search next
ES:DI -> pattern buffer (see #00341)
Return: AH = return code (00h,01h,03h,06h) (see also #00303 at AH=00h/DX=FFFFh)
01h no (more) matching names
03h invalid request
ES:DI buffer filled with reply buffer (see #00341) containing matched
name if AH=00h
Program: Connection Manager by Softwarehouse Corp. permits the sharing of
serial ports over an IPX or NetBIOS-based network
Desc: obtain the names of groups and lines available for connection requests,
and the names of active Connection Servers
SeeAlso: AH=04h/DX=FFFFh,AH=0Bh/DX=FFFFh
Format of Connection Manager pattern/reply buffer:
Offset Size Description (Table 00341)
00h WORD length of pattern (30h or 32h)
02h 16 BYTEs server pattern or name
12h 16 BYTEs group pattern or name
22h 16 BYTEs line pattern or name
23h BYTE (optional) ???
24h BYTE (optional, returned) current line status
00h available
01h out of service
02h currently allocated to a connection
Note: pattern may include '?' wildcard to match any character
--------S-1411-------------------------------
INT 14 - FOSSIL - SET CURRENT CURSOR LOCATION
AH = 11h
DH = row
DL = column
Return: nothing
Note: this is the same as INT 10/AH=02h
SeeAlso: AH=12h"FOSSIL"
--------S-1411-------------------------------
INT 14 - Digiboard DigiCHANNEL PC/X* - CLEAR TRANSMIT BUFFER
AH = 11h
DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AH = status
00h successful
FFh error
SeeAlso: AH=09h"Digiboard",AH=10h"Digiboard"
--------S-1411-------------------------------
INT 14 - PC-MOS/386 v5.01 $serial.sys v5.04 - DISABLE PORT
AH = 11h
DX = port number
Return: AL = status
00h successful
01h IRQ for port is shared
02h IRQ was reserved
SeeAlso: AH=04h"SERIAL",AH=05h"SERIAL",AH=12h"PC-MOS"
--------S-1412-------------------------------
INT 14 - FOSSIL - READ CURRENT CURSOR LOCATION
AH = 12h
Return: DH = row
DL = column
Note: this is the same as INT 10/AH=03h
SeeAlso: AH=11h"FOSSIL"
--------S-1412-------------------------------
INT 14 - Digiboard DigiCHANNEL PC/X* - GET TRANSMIT BUFFER FREE SPACE
AH = 12h
DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AX = number of bytes free
SeeAlso: AH=0Ah"Digiboard",AH=14h"Digiboard"
--------S-1412-------------------------------
INT 14 - PC-MOS/386 v5.01 $serial.sys v5.04 - GET CURRENT PORT PARAMETERS
AH = 12h
DX = port number
Return: AH = status
FFh port number invalid
AL = line parameters (see #00304)
AH = flow control configuration (see #00336 at AH=05h"PC-MOS")
CX:BX = bps rate
DL = XOFF character or 00h for none
DH = XON character or 00h for none
--------S-1413-------------------------------
INT 14 - FOSSIL - SINGLE CHARACTER ANSI WRITE TO SCREEN
AH = 13h
AL = character
Return: nothing
Note: should not be called if it is unsafe to call DOS
SeeAlso: AH=15h
--------S-1413-------------------------------
INT 14 - PC-MOS/386 v5.01 $serial.sys v5.04 - REGISTER A PORT WITH A TERMINAL
AH = 13h
DX = port number
Return: AH = status
FFh port number invalid
else
ES:BX -> BYTE flag (00h buffer empty, FFh buffer contains data)
SeeAlso: AH=17h"PC-MOS"
--------S-1414-------------------------------
INT 14 - FOSSIL - ENABLE OR DISABLE WATCHDOG PROCESSING
AH = 14h
AL = 01h enable watchdog
00h disable watchdog
DX = port number
Return: nothing
SeeAlso: INT 21/AH=2Bh/CX=6269h"WDTSR"
--------S-1414-------------------------------
INT 14 - PC-MOS/386 v5.01 $serial.sys v5.04 - OUTPUT STRING
AH = 14h
CX = number of characters in string
DX = port number
ES:BX -> string to be sent
SI = timeout in timer ticks or 0000h for default
Return: AX = number of bytes actually sent
ZF clear if successful
ZF set on timeout
SeeAlso: AH=01h,AH=15h"PC-MOS"
--------S-1414-------------------------------
INT 14 - Digiboard - GET NUMBER OF BOARDS INSTALLED
AH = 14h
Return: AX = number of boards installed
SeeAlso: AH=08h"Digiboard",AH=15h"Digiboard"
--------S-1415-------------------------------
INT 14 - FOSSIL - WRITE CHARACTER TO SCREEN USING BIOS SUPPORT ROUTINES
AH = 15h
AL = character
Return: nothing
SeeAlso: AH=13h"FOSSIL"
--------S-1415-------------------------------
INT 14 - PC-MOS/386 v5.01 $serial.sys v5.04 - INPUT STRING
AH = 15h
CX = size of buffer
DX = port number
ES:BX -> buffer for received characters
SI = timeout in clock ticks or 0000h for default
Return: AX = number of characters actually read
ZF set on timeout (no data available)
SeeAlso: AH=02h,AH=14h"PC-MOS",AH=16h"PC-MOS"
--------S-1415-------------------------------
INT 14 - Digiboard - ENABLE/DISABLE MEMORY
AH = 15h
AL = new state (00h disabled, 01h enabled)
Return: AH = status
00h successful
80h error
FFh error
SeeAlso: AH=14h"Digiboard",AH=16h"Digiboard"
--------S-1416-------------------------------
INT 14 - FOSSIL - INSERT/DELETE FUNCTION FROM TIMER TICK CHAIN
AH = 16h
AL = function
00h = delete
01h = add
ES:DX -> routine to call
Return: AX = status
0000h successful
0001h unsuccessful
SeeAlso: AH=07h"FOSSIL"
--------S-1416-------------------------------
INT 14 - PC-MOS/386 v5.01 $serial.sys v5.04 - LINK TO ANOTHER SERIAL DRIVER
AH = 16h
ES:BX -> calling driver's INT 14 entry point
Return: nothing
Program: PC-MOS/386 v5.01 is a multitasking, multiuser MS-DOS 5.0-compatible
operating system by The Software Link, Inc.
--------S-1416-------------------------------
INT 14 - Digiboard DigiCHANNEL PC/X* - CCB COMMAND
AH = 16h
AL = CCB command number (see #00342) (see also following entries)
BL = byte 2
BH = byte 3
CL = byte 1 (for all channel functions except 4Eh and 4Fh)
DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AH = status
00h successful
80h error
FFh error
SeeAlso: AX=1646h,AH=18h"Digiboard"
(Table 00342)
Values for Digiboard CCB command number:
40h Set Receive Mid Water Mark
41h Set Receive High Water Mark
42h Flush Receive Buffer
43h Flush Transmit Buffer
44h Transmit Pause
45h Transmit Resume
46h Set Interrupt to Host Mask
47h Set Baud, Data, Stop and Parity
48h Send Break
49h Set Modem Lines
4Ah Set Break Count
4Bh Set Handshake
4Ch Set Xon/Xoff Characters
4Dh Set Transmit Mid Water Mark
4Eh IRQ Polling Timer to Host
4Fh Buffer Set All
50h Port On
51h Port Off
52h Receive Pause
53h Special Character Interrupt
54h RS-422 Enable
--------S-141646-----------------------------
INT 14 - Digiboard - CCB COMMAND - SET INTERRUPT TO HOST MASK
AX = 1646h
BL = bits to set
BH = bits to clear
CL = byte 1
DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AH = status
00h successful
80h error
FFh error
SeeAlso: AH=16h"Digiboard",AX=1647h
--------S-141647-----------------------------
INT 14 - Digiboard - CCB COMMAND - SET BAUD/DATABITS/STOPBITS/PARITY
AX = 1647h
BL = baud
BH = datatype
CL = byte 1
DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AH = status
00h successful
80h error
FFh error
SeeAlso: AH=16h"Digiboard",AX=1646h,AX=1649h
--------S-141649-----------------------------
INT 14 - Digiboard - CCB COMMAND - SET MODEM LINES
AX = 1649h
BL = bits to set
BH = bits to clear
CL = byte 1
DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AH = status
00h successful
80h error
FFh error
SeeAlso: AH=16h"Digiboard",AX=1647h
--------S-14164A-----------------------------
INT 14 - Digiboard - CCB COMMAND - SET BREAK COUNT
AX = 164Ah
BL = break count
CL = byte 1
DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AH = status
00h successful
80h error
FFh error
SeeAlso: AH=16h"Digiboard",AX=1649h,AX=164Bh
--------S-14164B-----------------------------
INT 14 - Digiboard - CCB COMMAND - SET HANDSHAKE
AX = 164Bh
BL = bits to set
BH = bits to clear
CL = byte 1
DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AH = status
00h successful
80h error
FFh error
SeeAlso: AH=16h"Digiboard",AX=1649h,AX=164Ch
--------S-14164C-----------------------------
INT 14 - Digiboard - CCB COMMAND - SET XON/XOFF CHARACTERS
AX = 164Ch
BL = XON character
BH = XOFF character
CL = byte 1
DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AH = status
00h successful
80h error
FFh error
SeeAlso: AH=16h"Digiboard",AX=164Bh,AX=164Dh
--------S-14164D-----------------------------
INT 14 - Digiboard - CCB COMMAND - SET TRANSMIT MID-WATER MARK
AX = 164Dh
BX = new mid-water mark
CL = byte 1
DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AH = status
00h successful
80h error
FFh error
SeeAlso: AH=16h"Digiboard",AX=164Ch,AX=164Eh,AX=164Fh
--------S-14164E-----------------------------
INT 14 - Digiboard - CCB COMMAND - IRQ POLLING TIMER TO HOST
AX = 164Eh
BL = ticks
BH = ???
CL = mode
DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AH = status
00h successful
80h error
FFh error
SeeAlso: AH=16h"Digiboard",AX=164Dh
--------S-14164F-----------------------------
INT 14 - Digiboard - CCB COMMAND - BUFFER SET ALL
AX = 164Fh
BL = size
DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AH = status
00h successful
80h error
FFh error
SeeAlso: AH=16h"Digiboard",AX=164Dh
--------S-141653-----------------------------
INT 14 - Digiboard - CCB COMMAND - SPECIAL CHARACTER INTERRUPT
AX = 1653h
BL = enable/disable
BH = special character
CL = byte 1
DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AH = status
00h successful
80h error
FFh error
SeeAlso: AH=16h"Digiboard",AX=1646h
--------S-1417-------------------------------
INT 14 - FOSSIL - REBOOT SYSTEM
AH = 17h
AL = method
00h = cold boot
01h = warm boot
SeeAlso: INT 16/AX=E0FFh,INT 19,INT 60/DI=0606h
--------S-1417-------------------------------
INT 14 - PC-MOS/386 v5.01 $serial.sys v5.04 - WRITE MODEM CONTROL REGISTER
AH = 17h
AL = new value for UART's modem control register
DX = port number
Return: nothing
--------S-1418-------------------------------
INT 14 - FOSSIL - READ BLOCK
AH = 18h
CX = maximum number of characters to transfer
DX = port number
ES:DI -> user buffer
Return: AX = number of characters transferred
SeeAlso: AH=19h"FOSSIL",AH=83h"COURIERS",AX=FF02h,INT 6B/AX=0100h
--------S-1418-------------------------------
INT 14 - Digiboard DigiCHANNEL PC/X* - SEND BIOS COMMAND
AH = 18h
ES:BX -> 16-byte command string
DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AH = status
00h successful
80h timeout
AL = mailbox status
00h no errors
8Xh BIOS error
ES:BX buffer filled in with mailbox string
ZF clear if no errors
ZF set if either status byte contains an error code
SeeAlso: AH=16h"Digiboard"
--------S-1418-------------------------------
INT 14 - PC-MOS/386 v5.01 $serial.sys v5.04 - GET DRIVER DESCRIPTION
AH = 18h
DX = port number
Return: DS:BX -> 40-byte buffer containing a string identifying the serial
driver
SeeAlso: AH=06h"PC-MOS"
--------S-1419-------------------------------
INT 14 - FOSSIL - WRITE BLOCK
AH = 19h
CX = maximum number of characters to transfer
DX = port number
ES:DI -> user buffer
Return: AX = number of characters transferred
SeeAlso: AH=18h"FOSSIL",AH=86h,INT 6B/AX=0000h
--------S-1419-------------------------------
INT 14 - Digiboard DigiCHANNEL PC/X* - SPECIAL CHARACTER INTERRUPT
AH = 19h
BL = flag
00h disable special character interrupt
FFh enable interrupt
DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AH = status
00h successful
FFh failed
SeeAlso: AH=1Ah"Digiboard"
--------S-1419-------------------------------
INT 14 - PC-MOS/386 v5.01 $serial.sys v5.04 - SELECTIVE BUFFER FLUSH
AH = 19h
AL = what to flush
bit 0: input buffer
bit 1: output buffer
DX = port number
Return: nothing
SeeAlso: AH=09h"PC-MOS"
--------S-141A-------------------------------
INT 14 - FOSSIL - BREAK BEGIN OR END
AH = 1Ah
AL = 00h stop sending 'break'
01h start sending 'break'
DX = port number
Return: nothing
SeeAlso: AH=06h"FOSSIL",AH=8Ah,AH=FAh
--------S-141A-------------------------------
INT 14 - Digiboard DigiCHANNEL PC/X - SPECIAL CHARACTER FLAG/COUNTER
AH = 1Ah
BX = subfunction
00h return pointer to special character flag byte
01h return pointer to special character counter word
DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: ES:BX -> special character flag or counter
Notes: flag is FFh if one or more special characters are in the receive
buffer; it is 00h and the counter is invalid if no special characters
are in the receive buffer
counter (if valid) contains the number of characters in the receive
buffer up to and including the last-received special character
--------S-141B-------------------------------
INT 14 - FOSSIL - RETURN INFORMATION ABOUT THE DRIVER
AH = 1Bh
DX = port number
CX = size of user buffer
ES:DI -> user buffer for driver info (see #00343)
Return: AX = number of characters transferred
CX = 3058h ("0X") (X00 FOSSIL only)
DX = 2030h (" 0") (X00 FOSSIL only)
Format of FOSSIL driver info:
Offset Size Description (Table 00343)
00h WORD size of structure in bytes
02h BYTE FOSSIL spec driver conforms to
03h BYTE revision level of this specific driver
04h DWORD pointer to ASCIZ identification string
08h WORD size of the input buffer
0Ah WORD number of bytes left in buffer
0Ch WORD size of the output buffer
0Eh WORD number of bytes left in buffer
10h BYTE width of screen
11h BYTE length of screen
12h BYTE actual baud rate, computer to modem
--------S-141C-------------------------------
INT 14 - X00 FOSSIL - ACTIVATE PORT
AH = 1Ch
DX = port number
Return: AX = 1954h if successful
BL = maximum function number supported (not including 7Eh and above)
BH = revision of FOSSIL specification supported
Note: this is a duplicate of AH=04h, so that AH=04h may be made compatible
with the PS/2 BIOS in a future release
SeeAlso: AH=04h"FOSSIL",AH=1Dh
--------S-141D-------------------------------
INT 14 - X00 FOSSIL - DEACTIVATE PORT
AH = 1Dh
DX = port number
Return: none
Notes: this is a duplicate of AH=05h, so that AH=05h may be made compatible
with the PS/2 BIOS in a future release
ignored if the port was never activated with AH=04h or AH=1Ch
SeeAlso: AH=05h"FOSSIL",AH=1Ch
--------S-141E-------------------------------
INT 14 - X00 FOSSIL - EXTENDED LINE CONTROL INITIALIZATION
AH = 1Eh
AL = break status
00h if break
01h if no break
BH = parity (see #00344)
BL = number of stop bits
00h one stop bit
01h two stop bits (1.5 if 5 bit word length)
CH = word length (see #00345)
CL = bps rate (see #00346)
DX = port number
Return: AX = port status code (see #00304,#00305)
Notes: this function is intended to exactly emulate the PS/2 BIOS AH=04h call
if the port was locked at X00 load time, the appropriate parameters are
ignored
SeeAlso: AH=00h,AH=04h"SERIAL"
(Table 00344)
Values for X00 FOSSIL parity:
00h no parity
01h odd parity
02h even parity
03h stick parity odd
04h stick parity even
SeeAlso: #00307,#00345,#00346
(Table 00345)
Values for X00 FOSSIL word length:
00h 5 bits
01h 6 bits
02h 7 bits
03h 8 bits
SeeAlso: #00308,#00344,#00346
(Table 00346)
Values for X00 FOSSIL bps rate:
00h 110
01h 150
02h 300
03h 600
04h 1200
05h 2400
06h 4800
07h 9600
08h 19200
SeeAlso: #00309,#00344,#00345
--------S-141E------------------------------------
INT 14 - HUNTER 16 - READ COMMS PARAMETERS
AH = 1Eh
CX = channel number (00h COM1, 01h COM2, ...)
DS:BX -> buffer for communications parameters (see #00347)
Return: DS:BX buffer filled
Note: the Husky Hunter 16 is an 8088-based ruggedized laptop. Other family
members are the Husky Hunter, Husky Hunter 16/80, and Husky Hawk.
SeeAlso: AH=20h"HUNTER"
Format of HUNTER 16 communications parameters:
Offset Size Description (Table 00347)
00h BYTE communications type (00h IBM, nonzero Husky)
01h BYTE port number (00h COM1, 01h COM2)
02h BYTE baud rate (00h 110 bps, 01h 150, 02h 300, 03h 600, 04h 1200,
05h 2400, 06h 4800, 07h 9600, 08h 19200, 09h 38400)
03h BYTE data bits (01h seven, 02h eight)
04h BYTE parity (00h none, 01h odd, 02h even)
05h BYTE stop bits (00h one, 01h two)
06h BYTE handshake (see #00348)
07h BYTE handshake protocol (00h none, 01h Xon/Xoff, 02h HWK3780)
08h BYTE Nulls after CR (0-20)
09h BYTE LF (00h off, 01h on)
0Ah BYTE Serig. 0..7Fh: Ignore this character
80h: Serig off
0Bh BYTE echo (00h off, 01h on)
0Ch BYTE transmit timeout in seconds (1-60) or 00h to disable
0Dh BYTE receive timeout in seconds (1-60) or 00h to disable
0Eh 5 BYTEs reserved
Bitfields for HUNTER 16 handshake:
Bit(s) Description (Table 00348)
0-1 0: RTS off, 1: RTS hold, 2: RTS true
2 DTR enabled
4 CTS enabled
5 DSR enabled
6 DCD enabled
--------S-141F-------------------------------
INT 14 - X00 FOSSIL - EXTENDED SERIAL PORT STATUS/CONTROL
AH = 1Fh
DX = port number
AL = direction
00h read modem control register
Return: BL = modem control register (see #00349)
AH = status
01h write modem control register
BL = modem control register (see #00349)
Return: AX = status
Notes: this function is intended to exactly emulate the PS/2 BIOS AH=05h call
X00 forces BL bit 3 set (interrupts cannot be disabled)
SeeAlso: AH=00h,AH=05h"SERIAL"
Bitfields for X00 FOSSIL modem control register:
Bit(s) Description (Table 00349)
0 data terminal ready
1 request to send
2 OUT1
3 OUT2 (interrupts) enabled
4 LOOP
5-7 reserved
--------S-1420-------------------------------
INT 14 - X00 FOSSIL - DESTRUCTIVE READ WITH NO WAIT
AH = 20h
DX = port number
Return: AH = 00h if character was available
AL = next character (removed from receive buffer)
AX = FFFFh if no character available
SeeAlso: AH=0Ch,AH=21h"X00"
--------S-1420-------------------------------
INT 14 - Alloy MW386 - ATTACH LOGICAL COMMUNICATIONS PORT TO PHYSICAL PORT
AH = 20h
AL = logical port (01h COM1, 02h COM2)
DX = physical port number
Return: AX = status
0000h successful
FFFFh failed
SeeAlso: AH=21h"Alloy",AH=22h"Alloy",AH=23h"Alloy",INT 17/AH=8Bh"Alloy"
--------S-1420-------------------------------
INT 14 - MultiDOS Plus - INITIALIZE PORT
AH = 20h
AL = port parameters (see #00300 at AH=00h"SERIAL")
DX = port number (0-3)
Return: AH = status
00h successful
41h no such port
64h monitor mode already active
SeeAlso: AH=00h"SERIAL",AH=04h"MultiDOS",AH=21h"MultiDOS",AH=23h"MultiDOS"
--------S-1420-------------------------------
INT 14 - PC-MOS/386 v5.01 $serial.sys v5.04 - CHECK OUTPUT QUEUE
AH = 20h
DX = port number
Return: AX = number of bytes in output buffer
SeeAlso: AH=0Ah"Digiboard"
--------S-1420------------------------------------
INT 14 - HUNTER 16 - SELECT COMMS PARAMETERS
AH = 20h
CX = channel number (00h COM1, 01h COM2, ...)
DS:BX -> buffer with communications parameter (see #00347)
Return: AX = status
0000h successful
0001h invalid parameter
SeeAlso: AH=1Eh"HUNTER",AH=21h"HUNTER"
--------S-1421-------------------------------
INT 14 - X00 FOSSIL - STUFF RECEIVE BUFFER
AH = 21h
AL = character
DX = port number
Return: nothing
Notes: the given character is inserted at the end of the receive buffer as if
it had just arrived from the serial port; all normal receive
processing (XON/XOFF, ^C/^K) is performed on the character
fully re-entrant
SeeAlso: AH=20h"X00"
--------S-1421-------------------------------
INT 14 - Alloy MW386 v1.x only - RELEASE PHYSICAL COMMUNICATIONS PORT
AH = 21h
DX = physical port number
Return: AX = status
0000h successful
FFFFh failed
SeeAlso: AH=20h"Alloy",AH=22h"Alloy"
--------S-1421-------------------------------
INT 14 - MultiDOS Plus - TRANSMIT CHARACTER
AH = 21h
AL = character to send
DX = port number
Return: AH = status (see #00350)
Note: monitor mode must have been turned on with AH=24h before calling
SeeAlso: AH=20h"MultiDOS",AH=22h"MultiDOS",AH=24h"MultiDOS"
(Table 00350)
Values for MultiDOS Plus status:
00h successful
39h no DSR or CTS
3Ch no DSR
3Bh no CTS
41h no such port
42h monitor mode not active
97h timed out
--------S-1421-------------------------------
INT 14 - PC-MOS/386 v5.01 $serial.sys v5.04 - OUTPUT CHARACTER, WITH TIMEOUT
AH = 21h
AL = char to send
DX = port number
SI = timeout in timer ticks (0000h = default)
Return: after character is sent or timeout expires
Program: PC-MOS/386 v5.01 is a multitasking, multiuser MS-DOS 5.0-compatible
operating system by The Software Link, Inc.
SeeAlso: AH=01h,AH=0Eh"Digiboard",AH=22h"PC-MOS"
--------S-1421------------------------------------
INT 14 - HUNTER 16 - EXTENDED CONTROL
AH = 21h
AL = command
01h force transmission of buffer
02h clear transmit buffer
03h clear receive buffer
DX = port (00h COM1, 01h COM2)
Return: AH = extended status
Desc: executes the command on the selected port
SeeAlso: AH=1Eh"HUNTER",AH=20h"HUNTER",AH=22h"HUNTER",AH=24h"HUNTER"
--------S-1422-------------------------------
INT 14 - Alloy MW386 v2+ - RELEASE LOGICAL COMMUNICATIONS PORT
AH = 22h
AL = logical port (01h COM1, 02h COM2)
Return: AX = status (0000h successful)
SeeAlso: AH=20h"Alloy",AH=21h"Alloy"
--------S-1422-------------------------------
INT 14 - MultiDOS Plus - RECEIVE CHARACTER
AH = 22h
DX = port number
Return: AH = status (see also AH=21h"MultiDOS")
00h successful
AL = character
3Dh framing and parity error
3Eh overrun error
3Fh framing error
40h parity error
96h ring buffer overflow
Note: if no character is available, this function waits until a character
arrives or an implementation-dependent timeout elapses
SeeAlso: AH=20h"MultiDOS",AH=21h"MultiDOS",AH=27h
--------S-1422-------------------------------
INT 14 - PC-MOS/386 v5.01 $serial.sys v5.04 - RECEIVE CHARACTER, WITH TIMEOUT
AH = 22h
DX = port number
SI = timeout in timer ticks (0000h = default)
Return: AH = port status (see also #00304 at AH=03h)
bit 7 = 1 indicates time-out
AL = character received
Program: PC-MOS/386 v5.01 is a multitasking, multiuser MS-DOS 5.0-compatible
operating system by The Software Link, Inc.
SeeAlso: AH=02h,AH=0Fh"Digiboard",AH=21h"PC-MOS"
--------S-1422------------------------------------
INT 14 - HUNTER 16 - EXTENDED STATUS
AH = 22h
DX = port (00h COM1, 01h COM2)
Return: AH = extended status
BX = number of characters in input buffer
CX = number of characters in output buffer
Desc: returns the most recent Extended Status code for the port
SeeAlso: AH=21h"HUNTER"
--------S-1423-------------------------------
INT 14 - Alloy MW386 v2+ - GET PORT NUMBER FROM LOGICAL PORT ID
AH = 23h
AL = logical port (01h COM1, 02h COM2)
DH = user ID
DL = process ID (DH,DL both FFh for current task)
Return: AL = MW386 port mode (see #00351)
CX = MW386 port number
DH = owner's user ID
DL = owner's task ID
SeeAlso: AH=20h"Alloy",INT 17/AH=8Bh"Alloy"
Bitfields for MW386 port mode:
Bit(s) Description (Table 00351)
0 port is shared (spooler only)
1 port is spooled instead of direct (spooler only)
2 port is assigned as logical COM device, not in spooler
3 port is free
--------S-1423-------------------------------
INT 14 - MultiDOS Plus - GET PORT STATUS
AH = 23h
DX = port number
Return: AH = line status (see #00304 at AH=03h)
AL = modem status (see #00305 at AH=03h)
SeeAlso: AH=03h,AH=07h"MultiDOS",AH=20h"MultiDOS"
--------S-1423-------------------------------
INT 14 - PC-MOS/386 v5.01 $serial.sys v5.04 - DECLARE PORT OWNERSHIP
AH = 23h
DX = port number
BX = TCB segment/selector address of owner task
Return: nothing
SeeAlso: AH=0Dh"Digiboard",AH=21h"PC-MOS",AH=22h"PC-MOS"
--------S-1423------------------------------------
INT 14 - HUNTER 16 - CONTROL HANDSHAKE LINES
AH = 23h
BH = handshake line to set (00h RTS, 01h DTR)
BL = new level (00h low, 01h high)
Return: nothing
Desc: sets the handshake lines of COM1 to the desired level
SeeAlso: AH=21h"HUNTER",AH=24h"HUNTER"
--------S-1424-------------------------------
INT 14 - Alloy MW386 v2+ - CHANGE PHYSICAL PORT PARAMETERS
AH = 24h
CX = physical I/O port number
DS:DX -> configuration table (see #00352)
Return: AH = 00h
Note: invalid port numbers are merely ignored
SeeAlso: INT 17/AH=96h
Format of Alloy MW386 configuration table:
Offset Size Description (Table 00352)
00h BYTE baud rate (see #00353)
01h BYTE data bits (00h=5, 01h=6, 02h=7, 03h=8)
02h BYTE parity (00h none, 01h odd, 02h even)
03h BYTE stop bits (00h=1, 01h=2)
04h BYTE receive flow control
00h none, 01h XON/XOFF, 02h DTR/DSR, 03h XPC, 04h RTS/CTS
05h BYTE transmit flow control (as for receive)
(Table 00353)
Values for Alloy MW386 baud rate:
00h 38400
01h 19200
02h 9600
03h 7200
04h 4800
05h 3600
06h 2400
07h 2000
08h 1200
09h 600
0Ah 300
0Bh 150
0Ch 134.5
SeeAlso: #00309
--------S-1424-------------------------------
INT 14 - MultiDOS Plus - SET MONITOR MODE
AH = 24h
AL = port status storage
00h single status for entire receive buffer
01h separate status kept for each byte in receive buffer
DX = port number
Return: AH = status
00h successful
3Ah invalid status storage specified
41h no such port
64h monitor mode already active
Note: in monitor mode, MultiDOS redirects all BIOS video output to a serial
port
SeeAlso: AH=20h"MultiDOS",AH=25h
--------S-1424-------------------------------
INT 14 - PC-MOS/386 v5.01 $serial.sys v5.04 - ???
AH = 24h
Return: ???
Program: PC-MOS/386 v5.01 is a multitasking, multiuser MS-DOS 5.0-compatible
operating system by The Software Link, Inc.
--------S-1424------------------------------------
INT 14 - HUNTER 16 - CONTROL CTS HANDSHAKING
AH = 24h
AL = new CTS handshake state for COM1 (00h disabled, 01h enabled)
Return: nothing
SeeAlso: AH=23h"HUNTER",AH=25h"HUNTER",AH=26h"HUNTER"
--------S-1425-------------------------------
INT 14 - MultiDOS Plus - CLEAR BUFFERS
AH = 25h
AL = function
00h only clear buffers
01h clear buffers and deactivate
DX = port number
Return: AH = status
00h successful
3Ah invalid function
41h no such port
42h monitor mode not active
SeeAlso: AH=20h"MultiDOS",AH=24h"MultiDOS"
--------S-1425------------------------------------
INT 14 - HUNTER 16 - CONTROL RS232 DRIVERS
AH = 25h
AL = new state of RS232 drivers (00h off, 01h on)
Return: nothing
Note: this function can be used to save power by turning off the RS232
drivers. It can also be used to turn on the RS232 drivers before
connecting to a remote system to avoid "garbage" while the drivers
turn on.
SeeAlso: AH=23h"HUNTER",AH=24h"HUNTER",AH=26h"HUNTER"
--------S-1426------------------------------------
INT 14 - HUNTER 16 - CONTROL RI POWER UP
AH = 26h
AL = 00h enable RI power up
else disable RI power up
Return: nothing
Desc: control whether the Ring Indicator handshake can power up the Hunter
--------S-1427-------------------------------
INT 14 - MultiDOS Plus - GET BUFFER CHARACTER COUNT
AH = 27h
DX = port number
Return: AH = status
00h successful
41h no such port
42h monitor mode not active
AL = number of characters in receive buffer
--------S-1427------------------------------------
INT 14 - HUNTER 16 - GET INSTALLED PROTOCOLS COUNT
AH = 27h
AL = number of extended protocols installed (since last call)
Return: AL = total number installed, including new ones
Desc: Returns the number of extended communication protocols installed
SeeAlso: AH=25h"HUNTER",AH=28h"HUNTER"
--------S-1428------------------------------------
INT 14 - HUNTER 16 - GET PROTOCOL NAME
AH = 28h
AL = protocol handle
DS:BX -> 8 character buffer for protocol name
Return: AH = status
00h successful
DS:BX buffer filled with the protocol name
FFh failed
SeeAlso: AH=27h"HUNTER",AH=29h"HUNTER"
--------S-1429------------------------------------
INT 14 - HUNTER 16 - GET PROTOCOL HANDLE
AH = 29h
DS:BX -> buffer containing the protocol name
Return: AH = status
00h successful
AL = handle
FFh failed
SeeAlso: AH=28h"HUNTER",AH=2Ah"HUNTER"
--------S-142A------------------------------------
INT 14 - HUNTER 16 - EXTENDED PROTOCOL MENU
AH = 2Ah
AL = protocol handle
Return: AH = status
00h successful
FFh failed
AL = menu handle
SeeAlso: AH=29h"HUNTER",AH=2Bh"HUNTER"
--------S-142B------------------------------------
INT 14 - HUNTER 16 - GET EXTENDED PROTOCOL PARAMETERS
AH = 2Bh
AL = protocol handle
DS:BX -> buffer for extended protocol parameters
Return: AH = status
00h successful
DS:BX buffer filled with extended parameters
FFh failed
SeeAlso: AH=2Ah"HUNTER"
--------S-142C00----------------------------------
INT 14 - HUNTER 16 - GET DTR
AX = 2C00h
Return: AH = 00h
BL = current state
00h normal DTR operation
else DTR is forced high
Desc: Indicates whether the DTR signal on COM1 is forced high
Note: the Husky Hunter 16 is an 8088-based ruggedized laptop. Other family
members are the Husky Hunter, Husky Hunter 16/80, and Husky Hawk.
SeeAlso: AH=2Ch"SET DTR"
--------S-142C------------------------------------
INT 14 - HUNTER 16 - SET DTR
AH = 2Ch
AL nonzero
BL = new state
00h normal operation
else force DTR high
Return: AH = 00h
Desc: determine whether the DTR signal on COM1 should be forced high
SeeAlso: AX=2C00h
--------N-1436-------------------------------
INT 14 - ComShare - INSTALLATION CHECK
AH = 36h
Return: AX = 4353h ('CS') if installed
BX = bitmap of installed ports (bit 0: COM1 is gateway, etc.)
CX reserved for future use
WORD DX:[0100h] = ComShare version number
Program: The ComShare System is a modem-sharing program for NetBIOS and
NetWare-based networks by NashaKala Corporation
Note: ComShare supports the standard BIOS INT 14h calls with a slight
change in the interpretation of speed values
(see #00309 at AH=04h"SERIAL")
SeeAlso: AH=00h"SERIAL",AH=04h"SERIAL",AX=F4FFh
--------t-144000-----------------------------
INT 14 - I1541 - INSTALLATION CHECK
AX = 4000h
Return: AX = 1541h if installed
BH = I1541 major version (BCD)
BL = I1541 minor version (BCD)
CX = 0000h
--------t-144001-----------------------------
INT 14 - I1541 - TEST IF 1541 CABLE CONNECTED
AX = 4001h
Return: CF clear if connected
BL = LPT number where 1541 cable is connected (1..3)
CF set if cable not connected
Desc: scan all the LPT ports searching for the adapter cable
SeeAlso: AX=4000h
--------t-144002-----------------------------
INT 14 - I1541 - SELECT LPT PORT FOR OUTPUT
AX = 4002h
BL = LPT number (1..3)
Return: CF clear if successful
CF set otherwise
Desc: force the input output routines to work on the cable placed on LPT BL
SeeAlso: AX=4001h
--------t-144003-----------------------------
INT 14 - I1541 - RESET ALL DEVICES
AX = 4003h
Return: nothing
Desc: send a reset pulse of 100ms to all CBM devices
Note: it is necessary to wait about 2 seconds after reset before executing
other instructions
SeeAlso: AX=4000h,AX=4004h
--------t-144004-----------------------------
INT 14 - I1541 - SEND LISTEN SIGNAL
AX = 4004h
BH = device number (0..15)
Return: CF clear if successful
CF set on error
AL = error number (see #00354)
SeeAlso: AX=4005h,AX=4006h
(Table 00354)
Values for I1541 error number:
00h device not present
01h listener not ready
02h missing EOI time-out
03h EOI not completed
04h data not released
05h frame error
--------t-144005-----------------------------
INT 14 - I1541 - SEND SECONDARY ADDRESS FOR LISTEN
AX = 4005h
BL = channel number and mode (see #00355)
Return: CF clear if successful
CF set on error
AL = error number (see #00354)
SeeAlso: AX=4004h,AX=4006h
Bitfields for I1541 channel number and mode:
Bit(s) Description (Table 00355)
7-4 mode
0110 read/write
1110 close channel
1111 open channel
3-0 channel number
--------t-144006-----------------------------
INT 14 - I1541 - SEND UNLISTEN SIGNAL
AX = 4006h
Return: CF clear if successful
CF set on error
AL = error number (see #00354)
SeeAlso: AX=4004h,AX=4005h
--------t-144007-----------------------------
INT 14 - I1541 - SEND TALK SIGNAL
AX = 4007h
BH = device number (0-15)
Return: CF clear if successful
CF set on error
AL = error number (see #00354)
SeeAlso: AX=4008h,AX=4009h
--------t-144008-----------------------------
INT 14 - I1541 - SEND SECONDARY ADDRESS FOR TALK
AX = 4008h
BL = channel number and mode (see #00355)
Return: CF clear if successful
CF set on error
AL = error number (see also #00354)
40h turn around time-out
SeeAlso: AX=4007h,AX=4009h
--------t-144009-----------------------------
INT 14 - I1541 - SEND UNTALK SIGNAL
AX = 4009h
Return: CF clear if successful
CF set on error
AL = error number (see #00354)
SeeAlso: AX=4007h,AX=4008h
--------t-14400A-----------------------------
INT 14 - I1541 - SEND A BYTE TO A DEVICE
AX = 400Ah
BL = byte to send
CL = last-byte flag
00h more bytes follow
01h this is the last byte to be sent
Return: CF clear if successful
CF set on error
AL = error number (see #00354)
SeeAlso: AX=4000h,AX=400Bh
--------t-14400B-----------------------------
INT 14 - I1541 - RECEIVE A BYTE FROM A DEVICE
AX = 400Bh
Return: CF clear if successful
AL = byte received
CL = last-byte flag
00h more bytes to follow
01h received byte is the last
CF set on error
AL = error number
80h EOI response required
81h talker not ready
82h clock not set
83h clock not released
CL = 00h
SeeAlso: AX=4000h,AX=400Ah
--------t-14400C-----------------------------
INT 14 - I1541 - WAIT
AX = 400Ch
CX = number of 838ns microticks to wait (0000h means 65536, ~55ms)
Return: after wait period elapses
SeeAlso: AX=4000h,AX=400Dh
--------t-14400D-----------------------------
INT 14 - I1541 - LONGWAIT
AX = 400Dh
DX:CX = number of 838ns microticks to wait
(0000h:0000h means 4294967296, about one hour)
Example: To wait 1s you must set DX:CX=(1s/838ns)=1193180
SeeAlso: AX=4000h,AX=400Ch
--------t-14400E-----------------------------
INT 14 - I1541 - GET INFO
AX = 400Eh
Return: AX = LPT port I/O address in use (0000h if no cable in use)
BL = LPT number (1..3) in use (00h if no cable in use)
CF set if the cable is auto-detectable
CF clear if cable could not be auto-detected or is not present
SeeAlso: AX=4000h
--------S-1456-------------------------------
INT 14 U - BWCOM14 - INSTALLATION CHECK
AH = 56h
Return: CX = 0001h if installed
Program: BWCOM14 is a network serial port emulator (simulating a Hayes modem
connected to the serial port) distributed as part of the
Beame&Whiteside BW-NFS package
SeeAlso: AH=57h,AH=58h,INT 2F/AX=DF00h/BX=5445h
--------S-1457-------------------------------
INT 14 U - BWCOM14 - INITIALIZE
AH = 57h
DL = port number
Return: AL = initialization status (00h successful, 01h already initialized)
CX = port status (0001h port redirected, 0002h and FFFFh failed)
Note: after this call, all invocations of INT 14/AH=00h-03h for the specified
port will be handled by BWCOM14 until AH=58h is called
SeeAlso: AH=00h"SERIAL",AH=56h,AH=58h
--------S-1458-------------------------------
INT 14 U - BWCOM14 - SHUTDOWN
AH = 58h
Return: CX = status (0001h successful, 0002h not initialized)
Note: after this call, BWCOM14 will no longer redirect the COM port
SeeAlso: AH=56h,AH=57h
--------N-146F--BXFFFE-----------------------
INT 14 U - Connection Manager - ???
AH = 6Fh
BX = FFFEh
???
Return: ???
Program: Connection Manager by Softwarehouse Corp. permits the sharing of
serial ports over an IPX or NetBIOS-based network
--------N-146F--BXFFFF-----------------------
INT 14 - Connection Manager - INSTALLATION CHECK
AH = 6Fh
BX = FFFFh
Return: DX:BX -> Connection Manager Communication Table if installed
BX = FFFFh if not installed
SeeAlso: AH=0Dh/DX=FFFFh
--------S-146F00-----------------------------
INT 14 - HP Vectra EX-BIOS - "F14_INQUIRE" - INSTALLATION CHECK
AX = 6F00h
BX <> 4850h (usually set to 0000h for simplicity)
Return: BX = 4850h ("HP") if HP Extended BIOS serial port extensions available
AX destroyed
Note: supported by original HP Vectra AT and by ES/QS/RS series Vectras
SeeAlso: AX=6F01h,AX=6F02h,AX=6F03h,AX=6F04h,INT 10/AX=6F00h,INT 14/AX=6F00h
SeeAlso: INT 17/AX=6F00h,INT 33/AX=6F00h
--------S-146F01-----------------------------
INT 14 - HP Vectra EX-BIOS - "F14_EXINIT" - INITIALIZE SERIAL PORT
AX = 6F01h
BX = port attributes (see #00356)
DX = port number (0-3)
Return: AH = line status (see #00304)
AL = modem status (see #00305)
Note: supported by original HP Vectra AT and by ES/QS/RS series Vectras
SeeAlso: AX=6F00h
Bitfields for HP Vectra Extended BIOS serial port attributes:
Bit(s) Description (Table 00356)
8-5 data rate (110, 150, 300, 600, 1200, 2400, 4800, 9600, 19200)
4-3 parity
00 none
01 odd
10 none
11 even
2 stop bits (0 = one, 1 = two)
1-0 bits per character
10 seven-bit characters
11 eight-bit characters
0x undefined
--------S-146F02-----------------------------
INT 14 - HP Vectra EX-BIOS - "F14_PUT_BUFFER" - TRANSMIT BUFFER
AX = 6F02h
CX = number of characters in buffer
DX = port number (0-3)
ES:DI -> buffer containing characters
Return: AH = line status (see #00304)
AL = modem status (see #00305)
CX = number of bytes actually sent
ES:DI -> next byte to be transferred (unchanged if all bytes sent)
Desc: send characters from the specified buffer until all characters have
been sent or an error/timeout is encountered
Note: supported by original HP Vectra AT and by ES/QS/RS series Vectras
SeeAlso: AX=6F00h,AX=6F03h,AX=6F04h,INT 17/AX=6F02h
--------S-146F03-----------------------------
INT 14 - HP Vectra EX-BIOS - "F14_GET_BUFFER" - READ DATA INTO BUFFER
AX = 6F03h
CX = size of buffer
DX = port number (0-3)
ES:DI -> buffer for received characters
Return: AH = line status (see #00304)
---on error (AH bit 7 set)---
AL = 00h
ES:DI -> next byte to be transferred
---if successful---
AL = last byte read
ES:DI unchanged
CX = number of bytes read
Desc: read characters into the specified buffer until the buffer is filled
or a timeout occurs
Notes: supported by original HP Vectra AT and by ES/QS/RS series Vectras
polls the Data Set Ready modem status and Data Ready line status bits
to determine when characters are available
SeeAlso: AX=6F00h,AX=6F02h,AX=6F04h
--------S-146F04-----------------------------
INT 14 - HP Vectra EX-BIOS - "F14_TRM_BUFFER" - READ UNTIL TERMINATOR
AX = 6F04h
BL = lowest termination character
BH = highest termination character
CX = size of buffer
DX = port number (0-3)
ES:DI -> buffer for received characters
Return: AH = line status (see #00304)
---on error (AH bit 7 set)---
AL = 00h
ES:DI -> next byte to be transferred
---if successful---
AL = last byte read
ES:DI unchanged
CX = number of bytes read
Desc: read characters into the specified buffer until the buffer is filled,
a character in the specified range is received, or a timeout occurs
Notes: supported by original HP Vectra AT and by ES/QS/RS series Vectras
polls the Data Set Ready modem status and Data Ready line status bits
to determine when characters are available
SeeAlso: AX=6F00h,AX=6F02h,AX=6F03h
--------U-147000-----------------------------
INT 14 - NEWCOM - INSTALLATION CHECK
AX = 7000h
Return: AX = 4E43h ('NC') if installed
BX = 4F4Dh ('OM') if installed
CH = major version number
CL = minor version number
DH = patch level
DL = language (currently: 00h English, 01h French)
Program: Newcom is a DOS commandline-enhancer by kilobug@kali.isicom.fr
SeeAlso: INT 2F/AX=D44Dh
--------S-147E-------------------------------
INT 14 - FOSSIL - INSTALL AN EXTERNAL APPLICATION FUNCTION
AH = 7Eh
AL = code assigned to external application (80h-BFh)
80h reserved for communications FOSSIL
81h video FOSSIL
82h reserved for keyboard FOSSIL
83h reserved for system FOSSIL
ES:DX -> entry point
Return: AX = 1954h
BL = code assigned to application (same as input AL)
DH = status
00h failed
01h successful
SeeAlso: AH=7Fh,AH=80h"FOSSIL",AX=8100h,AH=82h"FOSSIL",AH=83h"FOSSIL"
--------S-147F-------------------------------
INT 14 - FOSSIL - REMOVE AN EXTERNAL APPLICATION FUNCTION
AH = 7Fh
AL = code assigned to external application
ES:DX -> entry point
Return: AX = 1954h
BL = code assigned to application (same as input AL)
DH = status
00h failed
01h successful
SeeAlso: AH=7Eh
--------S-1480-------------------------------
INT 14 - COMMUNICATIONS FOSSIL
AH = 80h
SeeAlso: AH=7Eh
--------S-1480-------------------------------
INT 14 - COURIERS.COM - INSTALLATION CHECK
AH = 80h
Return: AH = E8h if loaded
Program: COURIERS is a TSR utility by PC Magazine
--------S-148000-----------------------------
INT 14 - ARTICOM - INSTALLATION CHECK
AX = 8000h
Return: AL = FFh if installed
BH = major version
BL = minor version
Program: ArtiCom is an asynchronous communications driver by Artisoft which
works on top of NetBIOS and allows modem/serial-port sharing by
programs using INT 14 for serial I/O.
Note: ArtiCom supports 32 simultaneous COM ports using multiport cards and
drivers
SeeAlso: AH=00h"SERIAL",AH=01h,AH=02h,AH=03h,AH=04h"SERIAL",AH=05h"SERIAL"
SeeAlso: AX=8001h,AX=8002h
--------S-148000-----------------------------
INT 14 - COMM-DRV v14.0 - READ PORT METRICS - GET ERROR CODE AND BUFFER STATUS
AX = 8000h
DX = port number
Return: AX = code for last error (see #00357)
BX = number of characters in output buffer
CX = nubmer of characters in input buffer
DX = state flag (see #00358)
Program: COMM-DRV is a universal serial communications driver by Willies'
Computer Software Company, which supports standard INT 14 and
FOSSIL calls as well as its own interfaces
SeeAlso: AX=8001h"COMM-DRV",AX=8002h"COMM-DRV",AX=8003h"COMM-DRV"
(Table 00357)
Values for COMM-DRV error code:
00h no error
01h buffer not set or attempted to change buffer for active port
02h port not active
03h transmit buffer full
04h receive buffer full
05h syntax error
06h invalid buffer size
07h invalid port
08h handler changed
09h invalid baud rate
0Ah invalid parity setting
0Bh invalid data length
0Ch invalid number of stop bits
0Dh invalid protocol number
0Eh IRQ changed
0Fh port changged
10h invalid threshold setting
11h invalid IRQ number
12h interrupts not enabled
13h invalid break syntax
14h fatal error
15h CTS error
16h invalid RS232 I/O port address
17h environment variable not set
18h error on IOCTL call
19h error during atexit cleanup
1Ah error mapping for direct calls
1Bh error opening device
1Ch unable to allocate memory
1Dh error on external micro card
1Eh card changed error
1Fh card type error
20h not supported
21h parent port error
22h card command buffer full
23h no subdevice for this port
24h unknown error
25h external card busy
26h no more timers available
27h INT 14 vector changed
28h INT 08 vector changed
29h DPMI error
2Ah TSR buffer too small (or nonexistent)
2Bh out of asynchronous resources
2Ch out of timer resources
2Dh out of "other" timer resources
2Eh file I/O error
2Fh hardware memory > 64K
Bitfields for state flag :
Bit(s) Description (Table 00358)
0 port is active
1 output throttled (XOFF received, or DSR or CTS reset)
2 input throttled (XOFF sent, or DTR or RTS reset)
--------S-148001-----------------------------
INT 14 - ARTICOM - UNLOAD ASYNCHRONOUS REDIRECTOR FROM MEMORY
AX = 8001h
Return: AX = error code, if error (see #00360)
SeeAlso: AX=8000h"ARTICOM",AX=8002h"ARTICOM",AX=8003h"ARTICOM"
Index: uninstall;ARTICOM
--------S-148001-----------------------------
INT 14 - COMM-DRV v14.0 - READ PORT METRICS - GET PORT PARAMETERS
AX = 8001h
DX = port number
Return: BX:DI -> Port Control Block (see #00367)
SeeAlso: AX=8000h"COMM-DRV",AX=8002h"COMM-DRV",AX=8003h"COMM-DRV"
--------S-148002-----------------------------
INT 14 - ARTICOM - GET ASYNCHRONOUS REDIRECTOR STATUS
AX = 8002h
ES:DI -> buffer for redirector status structure (see #00359)
Return: AX = error code, if error (see #00360)
SeeAlso: AX=8000h"ARTICOM",AX=8003h"ARTICOM"
Format of ARTICOM redirector status:
Offset Size Description (Table 00359)
00h WORD redirector major and minor version numbers
02h WORD redirectable ports found
04h WORD redirectable ports + local ports found
06h WORD redirector internal buffer size
08h WORD maximum servers maintained
0Ah WORD number of adapters found
--------S-148002-----------------------------
INT 14 - COMM-DRV v14.0 - READ PORT METRICS - GET PORT PARAMETERS
AX = 8002h
DX = port number
Return: AH bit 7 set on error
AH bit 7 clear if successful
BX:DI -> Port Control Block (see #00367) (modifyable portion only)
SeeAlso: AX=8000h"COMM-DRV",AX=8001h"COMM-DRV",AX=8003h"COMM-DRV"
--------S-148003-----------------------------
INT 14 - ARTICOM - TRANSLATE ERROR CODE TO ERROR STRING
AX = 8003h
CX = error number to translate (see #00360)
Return: ES:DI -> ASCIZ error text or 0000h:0000h if unable to translate
SeeAlso: AX=8000h
(Table 00360)
Values for ARTICOM error codes:
00h "No error"
01h "An invalid port number was specified"
02h "Port is already redirected"
03h "Too many ports redirected"
04h "Cannot locate the server"
05h "Server is busy"
06h "Access denied"
07h "Resource in use"
08h "Resource in use - request queued"
09h "No such resource"
0Ah "Invalid username/password pair"
0Bh "Noncompatible version number"
0Ch "Can't remove from memory"
0Dh "Bad NETBIOS adapter number"
0Eh "No more entries in list"
0Fh "Resource is not available at this time"
10h "Invalid value to INT 14 call"
--------S-148003-----------------------------
INT 14 - COMM-DRV v14.0 - READ PORT METRICS - GET I/O BUFFER SIZES
AX = 8003h
DX = port number
Return: AX = number of characters in input buffer
BX = input buffer size
CX = number of characters in output buffer
DX = output buffer size
SeeAlso: AX=8000h"COMM-DRV",AX=8001h"COMM-DRV",AX=8002h"COMM-DRV"
--------S-148004-----------------------------
INT 14 - ARTICOM - ATTACH ASYNCHRONOUS RESOURCE
AX = 8004h
DX = port to redirect (COM1=0, COM2=1, ...)
CH = attach type
CL = adapter to use for attach, 0FFh to search all
ES:DI -> attachment structure (see #00361)
Return: AX = error code, if error (see #00360)
Note: The wildcard '*' is supported in the server and resource fields. If
wild cards are used then the first matching available server is
attached.
SeeAlso: AX=8000h,AX=8003h,AX=8005h
Format of ARTICOM attachment structure:
Offset Size Description (Table 00361)
00h 16 BYTEs server to look for attach
10h 16 BYTEs attach to resource name
20h 16 BYTEs username for attach
30h 16 BYTEs password for username or resource
40h BYTE attach type
00h normal
01h queue if resource is in use (not yet supported in v1.00)
--------S-148005-----------------------------
INT 14 - ARTICOM - DETACH ASYNCHRONOUS RESOURCE
AX = 8005h
DX = port to detach (COM1=0, COM2=1, ...)
Return: AX = error code, if error (see #00360)
Note: only a previously attached resource can be detached
SeeAlso: AX=8000h,AX=8003h,AX=8004h
--------S-148006-----------------------------
INT 14 - ARTICOM - GET RESOURCE INFORMATION
AX = 8006h
BX = remote port (COM1=0, COM2=1, ...)
CL = adapter number, FFh to try all adapters
ES:DI -> resource information structure (see #00362)
DS:SI -> 16 byte server name. See note.
Return: AX = error code, if error (see #00360)
BX = next remote port, recall to get next resource info
Note: Wild cards supported in both the resource field and server name
string DS:SI. If wild cards used then first matching available
resource information is searched. Set the resource field to FFh to
return all resources.
SeeAlso: AX=8000h,AX=8002h,AX=8003h,AX=8007h
Format of ARTICOM resource information structure:
Offset Size Description (Table 00362)
00h BYTE 00h = free, else used
01h 16 BYTEs resource name
11h 16 BYTEs username of resource user
21h WORD amount of time used
23h WORD amount of time remaining
53h 48 BYTEs description of resource
93h 64 BYTEs initialization string for modem
B3h 32 BYTEs dial string for modem
D3h 32 BYTEs hang-up string for modem
--------S-148007-----------------------------
INT 14 - ARTICOM - GET REDIRECTED PORT INFORMATION
AX = 8007h
DX = port index (COM1=0, COM2=1, ...)
ES:DI -> buffer for port information structure (see #00363)
Return: CF clear if redirection info returned and port is redirected
CF set if not a redirected port
AX = error code, if error (see #00360)
SeeAlso: AX=8000h,AX=8003h,AX=8006h,AX=8008h
Format of ARTICOM port information structure:
Offset Size Description (Table 00363)
00h 16 BYTEs server name resource is on
10h BYTE adapter number server is on
11h 16 BYTEs resource name
21h WORD remote port index, use to get additional information
23h WORD buffer size
25h WORD baud rate (see #00364)
26h BYTE modem status register
27h BYTE modem control register
28h BYTE line status register
29h BYTE line control register
2Ah BYTE flow control in use: 0 - NONE, 1 - XON/XOFF, 2 - RTS/CTS
2Bh WORD send timeout in ticks
2Dh WORD receive timeout in ticks
2Fh WORD time used on remote port
31h WORD time left before timeout
33h BYTE if server changes allowed?
34h WORD FFFFh (-1) if connection ok, else old port index
(Table 00364)
Values for ARTICOM baud rate:
00h 110
01h 150
02h 300
03h 600
04h 1200
05h 2400
06h 4800
07h 9600
08h 19200
09h 38400
0Ah 57600
0Bh 115200
0Ch 134.5
0Dh 1800
0Eh 2000
0Fh 3600
10h 7200
SeeAlso: #00309
--------S-148008-----------------------------
INT 14 - ARTICOM - GET AVAILABLE SERVER NAME
AX = 8008h
BX = server index (0,1,...)
ES:DI -> server name structure (see #00365)
Return: AX = error code, if error (see #00360)
BX = next remote port, repeat call to get next available server
Note: the wildcard '*' is supported in the server name field. Set the
server name to FFh to search for all servers.
SeeAlso: AX=8000h,AX=8003h,AX=8007h
Format of ARTICOM server name structure:
Offset Size Description (Table 00365)
00h 16 BYTEs (call) ASCIZ server name
10h BYTE (ret) the adapter server is found
--------S-148009-----------------------------
INT 14 - ARTICOM - SET SEND AND RECEIVE TIMEOUTS
AX = 8009h
BX = send timeout in ticks
CX = receive timeout in ticks
DX = port index (COM1=0, COM2=1, ...)
Return: nothing
SeeAlso: AX=8000h,AX=800Ah
--------S-14800A-----------------------------
INT 14 - ARTICOM - MODIFY FLOW CONTROL
AX = 800Ah
BL = flow control type (00h none, 01h XON/XOFF, 02h RTS/CTS)
DX = port index (COM1=0, COM2=1, ...)
Return: AX = error code, if error (see #00360)
Note: for attached ports only!
SeeAlso: AX=8000h,AX=8003h,AX=8009h
--------S-148025-----------------------------
INT 14 - ARTICOM - SET INTERNAL SEND/RECEIVE VECTOR
AX = 8025h
DS:DX -> address of trap function (see #00366) to call on read/write
Return: nothing
Note: setting the vector to a user function allows the redirector's activity
to be monitored.
SeeAlso: AX=8000h,AX=8035h,INT 21/AH=25h
(Table 00366)
Values ARTICOM trap function is called with:
AH = operation
80h reading character
81h writing character
AL = character
Return: AX must be preserved
far JUMP to old trap function (see AX=8035h)
--------S-148035-----------------------------
INT 14 - ARTICOM - GET INTERNAL SEND/RECEIVE VECTOR
AX = 8035h
Return: ES:BX -> address of current send/receive routine
Note: this function returns the address of the routine which is called
inside A-REDIR.EXE each time a character is received or sent on the
active COM port.
SeeAlso: AX=8000h,AX=8025h,INT 21/AH=35h
--------S-1481-------------------------------
INT 14 - COURIERS.COM - CHECK IF PORT BUSY
AH = 81h
AL = port number (1-4)
Return: AH = status
00h port available
01h port exists but already in use
02h port nonexistent
Program: COURIERS is a TSR utility by PC Magazine
SeeAlso: AH=83h,AH=8Dh
--------S-1481-------------------------------
INT 14 - COMM-DRV - EXTENDED INITIALIZATION
AH = 81h
BX:DI -> port control block (see #00367)
DX = port number
Return: AH = line status register (see #00304)
error if bit 7 set
AL = modem status register (see #00305)
Program: COMM-DRV is a universal serial communications driver by Willies'
Computer Software Company, which supports standard INT 14 and
FOSSIL calls as well as its own interfaces
Note: AX=8001h should be called first to fill in the port control block
SeeAlso: AH=00h,AX=8001h,AH=82h"COMM-DRV",AH=86h"COMM-DRV"
Format of COMM-DRV port control block:
Offset Type Description (Table 00367)
00h WORD port IO address
02h WORD port IRQ
04h WORD baud rate
06h WORD parity
08h WORD data bits
0Ah WORD stop bits
0Ch WORD break status (0000h off)
0Eh WORD flow control protocol
10h BYTE input block
11h BYTE output block
12h WORD low threshold
14h WORD high threshold
16h WORD segment of buffer
18h WORD offset of buffer
1Ah WORD input buffer length
1Ch WORD output buffer length
1Eh BYTE auxiliary address
1Fh BYTE spare
20h 4 WORDs spares
--------V-148100-----------------------------
INT 14 - VIDEO FOSSIL - RETURN VFOSSIL INFORMATION
AX = 8100h
ES:DI -> buffer for VFOSSIL information (see #00368)
Return: AX = 1954h if installed
SeeAlso: AH=7Eh,AX=8101h
Format of VFOSSIL information:
Offset Size Description (Table 00368)
00h WORD size of information in bytes, including this field
02h WORD VFOSSIL major version
04h WORD VFOSSIL revision level
06h WORD highest VFOSSIL application function supported
--------V-148101-----------------------------
INT 14 - VIDEO FOSSIL - OPEN VFOSSIL
AX = 8101h
ES:DI -> buffer for application function table (see #00369)
CX = length of buffer in bytes
Return: AX = 1954h if installed
BH = highest VFOSSIL application function supported
Note: the number of initialized pointers in the application function table
will never exceed CX/4; if the buffer is large enough, BH+1 pointers
will be initialized
SeeAlso: AX=8102h
Format of VFOSSIL application function table:
Offset Size Description (Table 00369)
00h DWORD -> function to query current video mode (VioGetMode)(see #00374)
04h DWORD -> function to set video mode (VioSetMode) (see #00375)
08h DWORD -> function to query hardware config (VioGetConfig) (see #00376)
0Ch DWORD -> function to write data in TTY mode (VioWrtTTY) (see #00377)
10h DWORD -> function to get current ANSI state (VioGetANSI) (see #00378)
14h DWORD -> function to set new ANSI state (VioSetANSI) (see #00379)
18h DWORD -> function to get curr cursor position (VioGetCurPos)
(see #00380)
1Ch DWORD -> function to set cursor position (VioSetCurPos) (see #00381)
20h DWORD -> function to get cursor shape (VioGetCurType) (see #00382)
24h DWORD -> function to set cursor shape (VioSetCurType) (see #00383)
28h DWORD -> function to scroll screen up (VioScrollUp) (see #00384)
2Ch DWORD -> function to scroll screen down (VioScrollDn) (see #00385)
30h DWORD -> function to read cell string from screen (VioReadCellStr)
(see #00386)
34h DWORD -> function to read char string from screen (VioReadCharStr)
(see #00387)
38h DWORD -> function to write a cell string (VioWrtCellStr)
(see #00388)
3Ch DWORD -> function to write char string, leaving attr (VioWrtCharStr)
(see #00389)
40h DWORD -> function to write char string,const attr (VioWrtCharStrAttr)
(see #00390)
44h DWORD -> function to replicate an attribute (VioWrtNAttr)
(see #00391)
48h DWORD -> function to replicate a cell (VioWrtNCell)
(see #00392)
4Ch DWORD -> function to replicate a character (VioWrtNChar)
(see #00393)
Format of VFOSSIL video mode data structure:
Offset Size Description (Table 00370)
00h WORD length of structure including this field
02h BYTE mode characteristics
bit 0: clear if MDA, set otherwise
bit 1: graphics mode
bit 2: color disabled (black-and-white)
03h BYTE number of colors supported (1=2 colors, 4=16 colors, etc)
04h WORD number of text columns
06h WORD number of text rows
08h WORD reserved
0Ah WORD reserved
0Ch DWORD reserved
SeeAlso: #00374,#00375
Format of VFOSSIL video configuration data:
Offset Size Description (Table 00371)
00h WORD structure length including this field
02h WORD adapter type
00h monochrome/printer
01h CGA
02h EGA
03h VGA
07h 8514/A
04h WORD display type
00h monochrome
01h color
02h enhanced color
09h 8514
06h DWORD adapter memory size
SeeAlso: #00376
Format of VFOSSIL cursor type record:
Offset Size Description (Table 00372)
00h WORD cursor start line
02h WORD cursor end line
04h WORD cursor width (always 01h)
06h WORD cursor attribute (FFFFh = hidden)
(Table 00373)
Values for VFOSSIL error code:
0000h successful
0074h internal VIO failure
0163h unsupported mode
0166h invalid row value
0167h invalid column value
017Eh buffer too small
01A5h invalid VIO parameter
01B4h invalid VIO handle
(Table 00374)
Call VioGetMode with:
STACK: WORD VIO handle (must be 00h)
DWORD pointer to video mode data structure (see #00370)
Return: AX = error code (00h, 74h, 17Eh, 1B4h) (see #00373)
SeeAlso: #00375
(Table 00375)
Call VioSetMode with:
STACK: WORD VIO handle (must be 00h)
DWORD pointer to video mode data structure (see #00370)
Return: AX = error code (00h, 74h, 163h, 17Eh, 1A5h, 1B4h) (see #00373)
SeeAlso: #00374
(Table 00376)
Call VioGetConfig with:
STACK: WORD VIO handle (must be 00h)
DWORD pointer to video configuration data buffer (see #00371)
Return: AX = error code (00h, 74h, 17Eh, 1B4h) (see #00373)
(Table 00377)
Call VioWrtTTY with:
STACK: WORD VIO handle (must be 00h)
WORD length of string
DWORD pointer to character string to be written to screen
Return: AX = error code (00h, 74h, 1B4h) (see #00373)
Notes: write wraps at end of line and terminates if it reaches end of screen
in ANSI mode, ANSI control sequences are interpreted, and this func is
not required to be reentrant; in non-ANSI mode, the function is
reentrant and may be called from within an MS-DOS function call
(Table 00378)
Call VioGetANSI with:
STACK: WORD VIO handle (must be 00h)
DWORD pointer to WORD which will be set to 00h if ANSI is off
or 01h if ANSI is on
Return: AX = error code (00h, 74h, 1B4h) (see #00373)
SeeAlso: #00379
(Table 00379)
Call VioSetANSI with:
STACK: WORD VIO handle (must be 00h)
DWORD pointer to WORD indicating new state of ANSI
00h off, 01h on
Return: AX = error code (00h, 74h, 1A4h, 1B4h) (see #00373)
SeeAlso: #00378
(Table 00380)
Call VioGetCurPos with:
STACK: WORD VIO handle (must be 00h)
DWORD pointer to WORD to hold current cursor column (0-based)
DWORD pointer to WORD to hold current cursor row (0-based)
Return: AX = error code (00h, 74h, 1B4h) (see #00373)
SeeAlso: #00381
(Table 00381)
Call VioSetCurPos with:
STACK: WORD VIO handle (must be 00h)
WORD cursor column
WORD cursor row
Return: AX = error code (00h, 74h, 166h, 167h, 1B4h) (see #00373)
Note: if either coordinate is invalid, the cursor is not moved
SeeAlso: #00380
(Table 00382)
Call VioGetCurType with:
STACK: WORD VIO handle (must be 00h)
DWORD pointer to cursor type record (see #00372)
Return: AX = error code (00h, 74h, 1B4h) (see #00373)
SeeAlso: #00383
(Table 00383)
Call VioSetCurType with:
STACK: WORD VIO handle (must be 00h)
DWORD pointer to cursor type record (see #00372)
Return: AX = error code (00h, 74h, 1A4h, 1B4h) (see #00373)
SeeAlso: #00384
(Table 00384)
Call VioScrollUp with:
STACK: WORD VIO handle (must be 00h)
DWORD pointer to char/attr cell for filling emptied rows
WORD number or rows to scroll (FFFFh = clear area)
WORD right column of scroll area
WORD bottom row of scroll area
WORD left column of scroll area
WORD top row of scroll area
Return: AX = error code (00h, 74h, 166h, 167h, 1B4h) (see #00373)
SeeAlso: #00385,INT 10/AH=06h
(Table 00385)
Call VioScrollDn with:
STACK: WORD VIO handle (must be 00h)
DWORD pointer to char/attr cell for filling emptied rows
WORD number or rows to scroll (FFFFh = clear area)
WORD right column of scroll area
WORD bottom row of scroll area
WORD left column of scroll area
WORD top row of scroll area
Return: AX = error code (00h, 74h, 166h, 167h, 1B4h) (see #00373)
SeeAlso: #00384,INT 10/AH=07h
(Table 00386)
Call VioReadCellStr with:
STACK: WORD VIO handle (must be 00h)
WORD column at which to start reading
WORD row at which to start reading
DWORD pointer to WORD containing length of buffer in bytes
on return, WORD contains number of bytes actually read
DWORD pointer to buffer for cell string
Return: AX = error code (00h, 74h, 166h ,167h, 1B4h) (see #00373)
(Table 00387)
Call VioReadCharStr with:
STACK: WORD VIO handle (must be 00h)
WORD column at which to start reading
WORD row at which to start reading
DWORD pointer to WORD containing length of buffer in bytes
on return, WORD contains number of bytes actually read
DWORD pointer to buffer for character string
Return: AX = error code (00h, 74h, 166h ,167h, 1B4h) (see #00373)
(Table 00388)
Call VioWrtCellStr with:
STACK: WORD VIO handle (must be 00h)
WORD column at which to start writing
WORD row at which to start writing
WORD length of cell string in bytes
DWORD pointer to cell string to write
Return: AX = error code (00h, 74h, 166h, 167h, 1B4h) (see #00373)
Note: write wraps at end of line and terminates if it reaches end of screen
(Table 00389)
Call VioWrtCharStr with:
STACK: WORD VIO handle (must be 00h)
WORD column at which to start writing
WORD row at which to start writing
WORD length of character string
DWORD pointer to character string to write
Return: AX = error code (00h, 74h, 166h, 167h, 1B4h) (see #00373)
Note: write wraps at end of line and terminates if it reaches end of screen
(Table 00390)
Call VioWrtCharStrAttr with:
STACK: WORD VIO handle (must be 00h)
DWORD pointer to attribute to be applied to each character
WORD column at which to start writing
WORD row at which to start writing
WORD length of character string
DWORD pointer to character string to write
Return: AX = error code (00h, 74h, 166h, 167h, 1B4h) (see #00373)
Note: write wraps at end of line and terminates if it reaches end of screen
(Table 00391)
Call VioWrtNAttr with:
STACK: WORD VIO handle (must be 00h)
WORD column at which to start writing
WORD row at which to start writing
WORD number of times to write attribute
DWORD pointer to display attribute to replicate
Return: AX = error code (00h, 74h, 166h, 167h, 1B4h) (see #00373)
Note: write wraps at end of line and terminates if it reaches end of screen
(Table 00392)
Call VioWrtNCell with:
STACK: WORD VIO handle (must be 00h)
WORD column at which to start writing
WORD row at which to start writing
WORD number of times to write cell
DWORD pointer to cell to replicate
Return: AX = error code (00h, 74h, 166h, 167h, 1B4h) (see #00373)
Note: write wraps at end of line and terminates if it reaches end of screen
(Table 00393)
Call VioWrtNChar with:
STACK: WORD VIO handle (must be 00h)
WORD column at which to start writing
WORD row at which to start writing
WORD number of times to write character
DWORD pointer to character to replicate
Return: AX = error code (00h, 74h, 166h, 167h, 1B4h) (see #00373)
Note: write wraps at end of line and terminates if it reaches end of screen
--------V-148102-----------------------------
INT 14 - VIDEO FOSSIL - CLOSE VFOSSIL
AX = 8102h
Return: AX = 1954h
Note: terminates all operations; after this call, the video FOSSIL may either
be removed from memory or reinitialized
SeeAlso: AX=8101h,AX=8103h
--------V-148103-----------------------------
INT 14 - VIDEO FOSSIL - UNINSTALL
AX = 8103h
Return: AX = 1954h
Note: this is an extension to the VFOSSIL spec by Bob Hartman's VFOS_IBM
--------K-1482-------------------------------
INT 14 - KEYBOARD FOSSIL
AH = 82h
SeeAlso: AH=7Eh
--------S-1482-------------------------------
INT 14 - COURIERS.COM - CONFIGURE PORT
AH = 82h
AL = port number (1-4)
BX = speed (bps)
CX = bit flags
bit 0: enable input flow control
bit 1: enable output flow control
bit 2: use X.PC protocol (not yet implemented)
Return: nothing
SeeAlso: AH=00h,AH=8Ch,INT 7A"X.PC"
--------S-1482-------------------------------
INT 14 - COMM-DRV v14.0 - PORT CLEANUP
AH = 82h
DX = port number
Return: AH bit 7 set on error
AH bit 7 clear if successful
Desc: reset the port to its state before the AH=81h initialization and unhook
any interrupts used by the port
SeeAlso: AH=81h"COMM-DRV",AH=83h"COMM-DRV"
----------1483-------------------------------
INT 14 - SYSTEM FOSSIL
AH = 83h
SeeAlso: AH=7Eh
--------S-1483-------------------------------
INT 14 - COURIERS.COM - START INPUT
AH = 83h
ES:BX -> circular input buffer
CX = length of buffer
(should be at least 128 bytes if input flow control enabled)
Return: nothing
SeeAlso: AH=18h,AH=87h,AH=8Dh,AH=A5h"BAPI"
--------S-1483-------------------------------
INT 14 - COMM-DRV v14.0 - FLUSH COMMUNICATION BUFFERS
AH = 83h
DX = port number
AL = subfunction
00h flush input buffer
01h flush output buffer
02h flush both buffers
Return: AH bit 7 set on error
AH bit 7 clear if successful
SeeAlso: AH=81h"COMM-DRV",AH=84h"COMM-DRV"
--------S-1484-------------------------------
INT 14 - COURIERS.COM - READ CHARACTER
AH = 84h
Return: ZF set if no characters available
ZF clear
AL = character
AH = modem status bits
bit 7: set on input buffer overflow
SeeAlso: AH=02h,AH=86h,AH=89h
--------S-1484-------------------------------
INT 14 - COMM-DRV v14.0 - SEND PACKET
AH = 84h
CX = packet length in bytes
DX = port number
ES:DI -> packet to be sent
Return: AH = line status (see #00304)
bit 7 set on error
AL destroyed
SeeAlso: AH=83h"COMM-DRV",AH=85h"COMM-DRV",AH=86h"COMM-DRV"
--------S-1485-------------------------------
INT 14 - COURIERS.COM - FLUSH PENDING INPUT
AH = 85h
Return: nothing
SeeAlso: AH=0Ah,AH=88h"COURIERS"
--------S-1485-------------------------------
INT 14 - COMM-DRV v14.0 - RECEIVE PACKET
AH = 85h
CX = length of packet in bytes
DX = port number
ES:DI -> buffer for packet
Return: AH = line status (see #00304)
bit 7 set on error
AL destroyed
Note: this call requires that at least the requested number of bytes are
already present in the input buffer, and will fail if there are
fewer bytes available
SeeAlso: AH=84h"COMM-DRV",AH=86h"COMM-DRV",AH=8Eh"COMM-DRV"
--------S-1486-------------------------------
INT 14 - COURIERS.COM - START OUTPUT
AH = 86h
ES:BX -> output buffer
CX = length of output buffer
Return: nothing
SeeAlso: AH=19h,AH=83h"COURIERS",AH=A4h"BAPI"
--------S-1486-------------------------------
INT 14 - COMM-DRV v14.0 - SET INPUT/OUTPUT TIMEOUTS
AH = 86h
BL = maximum clock ticks to wait before signalling error on input func
BH = maximum clock ticks to wait before signalling error on output
DX = port number
SI = input timeout in clock ticks if BL=FFh and BH=FFh
DI = output timeout in clock ticks if BL=FFh and BH=FFh
Return: AH bit 7 set on error
AH bit 7 clear if successful
Note: functions 02h, 85h, and 8Eh will wait for the input timeout before
returning an error when no data is available; functions 01h and 84h
will wait for the output timeout before returning an error if there
is no space to output the data
SeeAlso: AH=01h,AH=02h,AH=84h"COMM-DRV",AH=85h"COMM-DRV",AH=8Eh"COMM-DRV"
--------S-1487-------------------------------
INT 14 - COURIERS.COM - OUTPUT STATUS
AH = 87h
Return: AX = number of unsent characters
SeeAlso: AH=88h"COURIERS"
--------S-1487-------------------------------
INT 14 - COMM-DRV v14.0 - TURN ON DTR
AH = 87h
DX = port number
Return: AH bit 7 set on error
AH bit 7 clear if successful
SeeAlso: AX=8000h"COMM-DRV",AH=88h"COMM-DRV",AH=89h"COMM-DRV"
--------S-1488-------------------------------
INT 14 - COURIERS.COM - ABORT OUTPUT
AH = 88h
SeeAlso: AH=09h"FOSSIL",AH=85h"COURIERS"
--------S-1488-------------------------------
INT 14 - COMM-DRV v14.0 - TURN OFF DTR
AH = 88h
DX = port number
Return: AH bit 7 set on error
AH bit 7 clear if successful
Program: COMM-DRV is a universal serial communications driver by Willies'
Computer Software Company, which supports standard INT 14 and
FOSSIL calls as well as its own interfaces
SeeAlso: AX=8000h"COMM-DRV",AH=87h"COMM-DRV",AH=8Ah"COMM-DRV"
--------S-1489-------------------------------
INT 14 - COURIERS.COM - SEND SINGLE CHARACTER
AH = 89h
CL = character to send
Return: nothing
SeeAlso: AH=01h,AH=84h"COURIERS"
--------S-1489-------------------------------
INT 14 - COMM-DRV v14.0 - TURN ON RTS
AH = 89h
DX = port number
Return: AH bit 7 set on error
AH bit 7 clear if successful
SeeAlso: AX=8000h"COMM-DRV",AH=87h"COMM-DRV",AH=8Ah"COMM-DRV"
--------S-148A-------------------------------
INT 14 - COURIERS.COM - SEND BREAK
AH = 8Ah
Return: nothing
SeeAlso: AH=89h"COURIERS",AH=FAh
--------S-148A-------------------------------
INT 14 - COMM-DRV v14.0 - TURN OFF RTS
AH = 8Ah
DX = port number
Return: AH bit 7 set on error
AH bit 7 clear if successful
SeeAlso: AX=8000h"COMM-DRV",AH=88h"COMM-DRV",AH=89h"COMM-DRV"
--------S-148B-------------------------------
INT 14 - COMM-DRV v14.0 - SET USER INTERRUPT ROUTINE
AH = 8Bh
CX = bitmask of interrupt to process
00h = deinstall
BX:DI -> DWORD containing address of function to be called
Return: AH bit 7 clear if successful
AH bit 7 set on error
--------S-148C-------------------------------
INT 14 - COURIERS.COM - SET SPEED
AH = 8Ch
BX = speed in bps
Return: nothing
SeeAlso: AH=00h,AH=82h"COURIERS"
--------S-148C-------------------------------
INT 14 - COMM-DRV v14.0 - READ UART REGISTER
AH = 8Ch
AL = register offset
DX = port number
Return: AH bit 7 set on error
AH bit 7 clear if successful
AL = contents of UART register
SeeAlso: AH=8Dh"COMM-DRV"
--------S-148D-------------------------------
INT 14 - COURIERS.COM - DECONFIGURE PORT
AH = 8Dh
Return: nothing
SeeAlso: AH=82h"COURIERS"
--------S-148D-------------------------------
INT 14 - COMM-DRV v14.0 - WRITE UART REGISTER
AH = 8Dh
AL = register offset
BL = new value for UART register
DX = port number
Return: AH bit 7 set on error
AH bit 7 clear if successful
SeeAlso: AH=8Ch"COMM-DRV"
--------S-148E-------------------------------
INT 14 - COMM-DRV v14.0 - READ PACKET NONDESTRUCTIVELY
AH = 8Eh
CX = length of packet in bytes
DX = port number
ES:DI -> buffer for packet
Return: AH = line status (see #00304)
bit 7 set on error (see AX=8000h"COMM-DRV")
AL destroyed
Program: COMM-DRV is a universal serial communications driver by Willies'
Computer Software Company, which supports standard INT 14 and
FOSSIL calls as well as its own interfaces
Desc: retrieve a packet from the input buffer without removing it from the
buffer
Note: this call requires that at least the requested number of bytes are
already present in the input buffer, and will fail if there are
fewer bytes available
SeeAlso: AX=8000h"COMM-DRV",AH=84h"COMM-DRV",AH=85h"COMM-DRV",AH=86h"COMM-DRV"
--------S-14A0-------------------------------
INT 14 - 3com BAPI SERIAL I/O - CONNECT TO PORT
AH = A0h
ES:BX -> ASCIZ internet host name
CX = length of name
Return: AH = return code (00h,04h-06h,08h,0Ah-0Ch) (see #00394)
CL = session ID
Program: the Bridge Application Program Interface is a set of functions which
makes many of the details of LAN communications transparent
Note: Novell TELAPI.EXE returns AH=09h (not supported) and CL=00h
SeeAlso: AH=A1h"BAPI",AH=A2h"BAPI",AH=A5h"BAPI",AX=AF00h
(Table 00394)
Values for 3com BAPI return code:
00h successful
01h no characters written
02h no characters read
03h no such session
04h clearinghouse name not found
05h no response from host
06h no more sessions available
07h session aborted
08h invalid clearinghouse name
09h not supported
0Ah internal (general) network error
0Bh out of memory
0Ch invalid IP address
--------S-14A0--CXFFFF-----------------------
INT 14 - Interconnections Inc. TES - INSTALLATION CHECK/STATUS REPORT
AH = A0h
CX = FFFFh
Return: CF clear if successful
AX = 5445h ('TE')
CX <> FFFFh
DX = port number
CF set on error
Program: TES is a network serial port emulation program
SeeAlso: AH=A1h"TES"
--------S-14A1-------------------------------
INT 14 - 3com BAPI SERIAL I/O - DISCONNECT FROM PORT
AH = A1h
DH = session ID (00h for external session managment)
Return: AH = return code (00h,03h,07h,0Ah,0Bh) (see #00394)
AL destroyed (Novell TELAPI.EXE)
SeeAlso: AH=A0h"BAPI"
--------S-14A1-------------------------------
INT 14 - Interconnections Inc. TES - GET LIST OF SESSIONS WITH STATUS
AH = A1h
Return: CX = number of active sessions
ES:SI -> status array (see #00395)
SeeAlso: AH=A2h"TES",AH=A3h"TES"
Format of Interconnections TES status array entry:
Offset Size Description (Table 00395)
00h BYTE status
01h WORD offset of name
--------S-14A2-------------------------------
INT 14 - 3com BAPI SERIAL I/O - WRITE CHARACTER
AH = A2h
AL = character
DH = session ID (00h for external session managment)
Return: AH = return code (00h,01h,03h,07h,0Ah,0Bh) (see #00394)
SeeAlso: AH=A0h"BAPI",AH=A3h"BAPI",AH=A4h"BAPI"
--------S-14A2-------------------------------
INT 14 - Interconnections Inc. TES - GET LIST OF SERVER NAMES
AH = A2h
Return: CX = number of servers
ES:SI -> array of offsets from ES for server names
SeeAlso: AH=A1h"TES"
--------S-14A3-------------------------------
INT 14 - 3com BAPI SERIAL I/O - READ CHARACTER
AH = A3h
DH = session ID (00h for external session managment)
Return: AH = return code (00h,02h,03h,07h,0Ah,0Bh) (see #00394)
AL = character read or 00h if none available
SeeAlso: AH=A0h"BAPI",AH=A2h"BAPI",AH=A5h"BAPI",AH=A7h"BAPI"
--------S-14A3-------------------------------
INT 14 - Interconnections Inc. TES - START A NEW SESSION
AH = A3h
ES:SI -> ???
Return: CF clear if successful
AX = 5445h ('TE')
CX <> FFFFh
DX = port number
CF set on error
SeeAlso: AH=A1h"TES",AH=A4h"TES",AH=A6h"TES"
--------S-14A4-------------------------------
INT 14 - 3com BAPI SERIAL I/O - WRITE BLOCK
AH = A4h
CX = length of buffer in bytes
DH = session ID (00h for external session managment)
ES:BX -> buffer containing data
Return: AH = return code (00h,01h,03h,07h,0Ah,0Bh) (see #00394)
CX = number of bytes actually sent
SeeAlso: AH=19h,AH=86h,AH=A0h"BAPI",AH=A5h"BAPI"
--------S-14A4-------------------------------
INT 14 - Interconnections Inc. TES - HOLD CURRENTLY ACTIVE SESSION
AH = A4h
???
Return: ???
SeeAlso: AH=A3h"TES",AH=A5h"TES"
--------S-14A5-------------------------------
INT 14 - 3com BAPI SERIAL I/O - READ BLOCK
AH = A5h
CX = length of buffer
DH = session ID (00h for external session managment)
ES:BX -> buffer for data
Return: AH = return code (00h,02h,03h,07h,0Ah,0Bh) (see #00394)
CX = number of bytes actually read
SeeAlso: AH=18h,AH=83h"COURIERS",AH=A0h"BAPI",AH=A3h"BAPI",AH=A4h"BAPI"
SeeAlso: AH=A7h"BAPI",AX=FF02h
--------S-14A5-------------------------------
INT 14 - Interconnections Inc. TES - RESUME A SESSION
AH = A5h
AL = session number
Return: ???
SeeAlso: AH=A4h"TES",AH=A6h"TES"
--------S-14A6-------------------------------
INT 14 - 3com BAPI SERIAL I/O - SEND SHORT BREAK
AH = A6h
DH = session ID (00h for external session managment)
Return: AH = return code (00h,03h,07h,0Ah,0Bh) (see #00394)
Desc: generate a short break signal; if data delivery was turned off by the
break, wait for the host to turn it on again
SeeAlso: AH=1Ah,AH=8Ah,AH=FAh,AH=A0h"BAPI"
--------S-14A6-------------------------------
INT 14 - Interconnections Inc. TES - DROP A SESSION
AH = A6h
AL = session number
Return: AH = status
00h successful
else error
SeeAlso: AH=A3h"TES",AH=A5h"TES"
--------S-14A7-------------------------------
INT 14 - 3com BAPI SERIAL I/O - READ STATUS
AH = A7h
DH = session ID (00h for external session managment)
Return: AH = return code (00h,03h,07h,0Ah,0Bh) (see #00394)
CX = number of bytes available for reading
Note: Novell TELAPI.EXE v4.01 always returns either 0 or 1 bytes available
SeeAlso: AH=A5h"BAPI"
--------S-14A7-------------------------------
INT 14 - Interconnections Inc. TES - SWITCH TO NEXT ACTIVE SESSION
AH = A7h
???
Return: ???
SeeAlso: AH=A3h"TES",AH=A5h"TES"
--------S-14A8-------------------------------
INT 14 - Interconnections Inc. TES - SEND STRING TO COMMAND INTERPRETER
AH = A8h
AL = 00h no visible response
ES:SI -> ASCIZ command
Return: ???
--------N-14A8-------------------------------
INT 14 - Novell TelAPI v4.01 - CONNECTION INFORMATION???
AH = A8h
DH = session ID???
CH = subfunction
02h ???
0Dh ???
0Fh ???
10h ???
11h ???
28h ???
else
Return: AH = 09h (not supported)
Return: AH = return code (see #00394)
00h successful
CL = ??? (0/1/8) (subfunctions 02h,0Dh,0Fh,10h)
CL = ??? (7Fh/FFh) (subfunction 28h)
CX = ??? (subfunction 11h)
SeeAlso: AH=A9h"TelAPI"
--------N-14A9-------------------------------
INT 14 - Novell TelAPI v4.01 - CONNECTION CONTROL???
AH = A9h
DH = session ID???
CH = subfunction
02h ???
0Dh ???
0Fh ???
10h ???
11h ???
28h ???
else
Return: AH = 09h (not supported)
???
Return: AH = return code (see #00394)
???
SeeAlso: AH=A8h"TelAPI",AH=E4h,INT 6B/AX=0600h
--------V-14AA01-----------------------------
INT 14 - DimVGA v2.0+ - INSTALLATION CHECK
AX = AA01h
Return: AX = FFFFh if installed, unchanged
BX = version (v1.5+ only), BH = major, BL = minor (v1.5 = 0105h)
CX = resident segment (v3.1+)
Program: DimVGA is a public domain screen saver by Menno Pieters
SeeAlso: AX=AA02h,AX=AA03h,AX=AA06h,INT 11/AX=0225h/BX=6900h,INT 12"KEYBUI"
SeeAlso: INT 2D/AL=10h"Burnout Plus",INT 2F/AX=6400h,INT 2F/AH=93h
SeeAlso: INT 2F/AX=C000h"VGAsave",INT 2F/AX=C000h"AD-DOS",INT 2F/AX=C050h
SeeAlso: INT 2F/AX=E300h
Index: screen saver;DimVGA
--------V-14AA02-----------------------------
INT 14 - DimVGA v2.0+ - SET TIME-OUT (DIMMING/BLANKING) PERIOD
AX = AA02h
BX = number of clock ticks
Return: AX = FFFFh
Note: on screen modes with 256 or less colors DimVGA will dim the screen,
when more than 256 colors can be used DimVGA will blank the screen.
SeeAlso: AX=AA01h,AX=AA03h,AX=AA04h,AX=AA06h
Index: screen saver;DimVGA
--------V-14AA03-----------------------------
INT 14 - DimVGA v2.0+ - SET DIMMING FACTOR
AX = AA03h
BX = percentage remaining visible (1-99)
Return: AX = FFFFh
SeeAlso: AX=AA02h,AX=AA05h,AX=AA06h
Index: screen saver;DimVGA
--------V-14AA04-----------------------------
INT 14 - DimVGA v2.0+ - GET TIME-OUT PERIOD
AX = AA04h
Return: AX = FFFFh
BX = current time-out in clock ticks
SeeAlso: AX=AA02h,AX=AA05h,AX=AA0Ah
Index: screen saver;DimVGA
--------V-14AA05-----------------------------
INT 14 - DimVGA v2.0+ - GET DIMMING FACTOR
AX = AA05h
Return: AX = FFFFh
BX = current dimming factor
SeeAlso: AX=AA03h,AX=AA04h,AX=AA0Ah
Index: screen saver;DimVGA
--------V-14AA06-----------------------------
INT 14 - DimVGA v2.0+ - DISABLE
AX = AA06h
Return: AX = FFFFh
SeeAlso: AX=AA01h,AX=AA07h,AX=AA0Ah
Index: screen saver;DimVGA
--------V-14AA07-----------------------------
INT 14 - DimVGA v2.0+ - ENABLE
AX = AA07h
Return: AX = FFFFh
SeeAlso: AX=AA01h,AX=AA06h,AX=AA0Ah
Index: screen saver;DimVGA
--------V-14AA08-----------------------------
INT 14 - DimVGA v2.0+ - DIM SCREEN 'MANUALLY'
AX = AA08h
Return: AX = FFFFh
Note: this function will dim the screen immediately, even if DimVGA is
currently disabled
SeeAlso: AX=AA01h,AX=AA02h,AX=AA09h
Index: screen saver;DimVGA
--------V-14AA09-----------------------------
INT 14 - DimVGA v2.0+ - UNDIM SCREEN 'MANUALLY'
AX = AA09h
Return: AX = FFFFh
Note: this function will undim the screen immediately, even if DimVGA is
currently disabled
SeeAlso: AX=AA01h,AX=AA08h
Index: screen saver;DimVGA
--------V-14AA0A-----------------------------
INT 14 - DimVGA v2.0+ - CHECK WHETHER ENABLED
AX = AA0Ah
Return: AX = FFFFh
BX = current state (0000h disabled, 0001h enabled)
SeeAlso: AX=AA01h,AX=AA06h,AX=AA07h
Index: screen saver;DimVGA
--------V-14AA0B-----------------------------
INT 14 - DimVGA v2.1+ - SET HOTKEY
AX = AA0Bh
BH = shift state (see #00396)
BL = keyboard scancode
Return: AX = FFFFh
SeeAlso: AX=AA01h,AX=AA0Ch
Index: screen saver;DimVGA
Bitfields for DimVGA hotkey shift state:
Bit(s) Description (Table 00396)
7-4 unused
3 Alt key pressed
2 Ctrl key pressed
1 Left shift key pressed
0 Right shift key pressed
--------V-14AA0C-----------------------------
INT 14 - DimVGA v2.1+ - GET HOTKEY
AX = AA0Ch
Return: AX = FFFFh
BH = shift state (see #00396)
BL = keyboard scancode
SeeAlso: AX=AA01h,AX=AA0Bh
Index: screen saver;DimVGA
--------V-14AA0D-----------------------------
INT 14 - DimVGA v3.0+ - SET MOUSE CHECK STATUS
AX = AA0Dh
BX = new mouse check status
0000h mouse checking off
0001h mouse checking on
Return: AX = FFFFh
Note: before switching mouse checking on, a mouse driver should be
found in memory. If no mouse driver is found, mouse checking
should be switched off (resident DimVGA does not check by itself).
SeeAlso: AX=AA01h,AX=AA0Eh
Index: screen saver;DimVGA
--------V-14AA0E-----------------------------
INT 14 - DimVGA v3.0+ - GET MOUSE CHECK STATUS
AX = AA0Eh
Return: BX = mouse check status (0000h disabled, 0001h enabled)
SeeAlso: AX=AA01h,AX=AA0Dh
Index: screen saver;DimVGA
--------V-14AA0F-----------------------------
INT 14 - DimVGA v3.4 - SET LOCKING STATUS
AX = AA0Fh
BX = locking status
0000h disabled
0001h enabled
Return: AX = FFFFh
SeeAlso: AX=AA01h,AX=AA0Dh,AX=AA10h
Index: screen saver;DimVGA
--------V-14AA10-----------------------------
INT 14 - DimVGA v3.4 - GET MOUSE CHECK STATUS
AX = AA10h
Return: BX = locking status (0000h disabled, 0001h enabled)
SeeAlso: AX=AA01h,AX=AA0Dh,AX=AA0Fh
Index: screen saver;DimVGA
----------14AD-------------------------------
INT 14 - IBM SurePath BIOS - Officially "Private" Function
AH = ADh
SeeAlso: AH=AEh"IBM",AH=AFh"IBM"
----------14AE-------------------------------
INT 14 - IBM SurePath BIOS - Officially "Private" Function
AH = AEh
SeeAlso: AH=ADh"IBM",AH=AFh"IBM"
----------14AF-------------------------------
INT 14 - IBM SurePath BIOS - Officially "Private" Function
AH = AFh
SeeAlso: AH=ADh"IBM",AH=AEh"IBM"
--------S-14AF00BXAAAA-----------------------
INT 14 - 3com BAPI SERIAL I/O - INSTALLATION CHECK
AX = AF00h
BX = AAAAh
Return: AX = AF01h if installed
BH = protocol type (if BX=AAAAh on entry)
01h NetManage TCP/IP
BL = version for protocol type (if BX=AAAAh on entry)
Note: early versions of the BAPI and the ROM BIOS simply destroy AX; this
behavior is used to determine whether the newer functions (AH=B0h,
AH=B1h,etc) are available
SeeAlso: AH=A0h"BAPI"
--------S-14B0-------------------------------
INT 14 - 3com BAPI SERIAL I/O - EN/DISABLE "ENTER COMMAND MODE" (ECM) CHARACTER
AH = B0h
AL = new state (00h disabled, 01h enabled)
Return: AH = return code (00h,07h,0Ah) (see #00394)
Note: disabling the ECM character allows applications to send data which
includes the ECM character
SeeAlso: AX=AF00h"BAPI",AH=B1h,AH=B2h
--------S-14B1-------------------------------
INT 14 - 3com BAPI SERIAL I/O - ENTER COMMAND MODE
AH = B1h
Return: AH = return code (00h,07h,0Ah) (see #00394)
Desc: provide a means for the application or terminal emulator to perform
the same action normally caused by the ECM character
SeeAlso: AH=B0h,AH=B2h
--------S-14B2-------------------------------
INT 14 - 3com BAPI SERIAL I/O - GET ECM WATCH STATE
AH = B2h
Return: AH = return code (00h,07h,0Ah) (see #00394)
AL = watch flag (00h disabled, 01h enabled)
Desc: determine whether the ECM character is enabled
SeeAlso: AH=B0h,AH=B1h
--------S-14B3-------------------------------
INT 14 - 3com BAPI SERIAL I/O - GET/SET CONFIGURATION INFO
AH = B3h
AL = direction (00h get, 01h set)
DH = session ID (00h for external session managment)
DL = configuration item (00h = end-of-line mapping)
CX = new configuration item value (if AL=01h)
---if DL=00h---
CH = application EOL type (app to Telnet client)
01h application will send lone CR
02h application will send CR-? pair
CL = driver EOL type (Telnet client to Telnet server)
01h driver should send CR-NUL pair
02h driver should send CR-LF pair
Return: AH = return code (00h,03h,09h-0Bh) (see #00394)
---if AL=00h---
CX = configuration item value (above)
SeeAlso: AH=B2h
--------N-14E0-------------------------------
INT 14 - TelAPI - "telopen" - CREATE TELNET CONNECTION (BLOCKING)
AH = E0h
BX = port number to connect with (default 0017h used if <= 0)
CX:DX = Internet address of remote host
DS:DI -> 2-byte remote host (session) identifier
ES:SI -> 1700-byte buffer for Telnet state record
0000h:0000h to use TelAPI internally-allocated space
Return: AX = status (0000h-0009h,FED3h,FF37h,FFBDh,FFC0h,FFCDh) (see #00397)
ES:SI buffer filled with state record
ES:SI -> internally-allocated state record in some versions
Note: the remote host identifier may be used to refer to this connection
SeeAlso: AH=E1h,AH=ECh,AX=FF00h
(Table 00397)
Values for TelAPI status:
0000h-7FFFh successful (session number)
FED3h (-301) no session allocated, or out of TelAPI data space
FF37h (-201) all sessions in use
FFBDh (-67) unknown hostname
FFC0h (-64) host not functioning
FFC3h (-61) connection attempt refused
FFC4h (-60) connection attempt timed out
FFC8h (-56) socket already connected
FFCDh (-51) network is unreachable
FFDDh (-35) operation would block
--------S-14E000-----------------------------
INT 14 - MX5 Extended FOSSIL - GET MNP STATUS BLOCK
AX = E000h
DX = port number (0-3)
Return: ES:BX -> status block (see #00398)
Program: MX5 is a FOSSIL driver by MagicSoft which emulates MNP Level 5, and
ships with the METZ terminal program as MTEMNP.DRV (a TSR despite
the .DRV extension)
SeeAlso: AX=E006h
Format of MX5 Extended FOSSIL status block:
Offset Size Description (Table 00398)
00h BYTE flag: active (00h no, 01h yes)
01h BYTE MNP level (2,4,5)
02h BYTE series ID from remote MNP
03h DWORD total packets transmitted
07h DWORD duplicate packets transmitted
0Bh DWORD maximum speed
0Fh DWORD total packets received
13h DWORD duplicate packets received
17h DWORD maximum speed
--------S-14E001-----------------------------
INT 14 - MX5 Extended FOSSIL - GET/SET MNP LEVEL
AX = E001h
BH = function
00h get MNP level
01h set MNP level
BL = new level (00h none, 02h/04h/05h MNP level N)
DX = port number (0-3)
Return: BL = MNP level
SeeAlso: AX=E002h,AX=E003h,AX=E004h,AX=E006h
--------S-14E002-----------------------------
INT 14 - MX5 Extended FOSSIL - GET/SET MNP ANSWER/ORIGINATE MODE
AX = E002h
BH = function
00h get answer/originate mode
01h set mode
BL = new mode (00h originate [default], 01h answer)
DX = port number (0-3)
Return: BL = answer/originate mode
SeeAlso: AX=E001h,AX=E003h,AX=E006h
--------S-14E003-----------------------------
INT 14 - MX5 Extended FOSSIL - GET/SET MNP WAIT TICKS
AX = E003h
BH = function
00h get wait ticks
01h set wait ticks
BL = MNP wait ticks (default 0Eh)
DX = port number (0-3)
Return: BL = wait ticks
SeeAlso: AX=E001h,AX=E002h,AX=E006h
--------S-14E004-----------------------------
INT 14 - MX5 Extended FOSSIL - GET/SET MNP CONNECT SOUND LEVEL
AX = E004h
BH = function
00h get sound level
01h set sound level
BL = new sound level (00h off, 01h on [default])
DX = port number
Return: BL = sound state
Desc: specify whether MX5 should generate beeps after an MNP connection
(three high beeps if successful, high then low on connection failure)
SeeAlso: AX=E002h,AX=E006h
--------S-14E005-----------------------------
INT 14 - MX5 Extended FOSSIL - UNINSTALL
AX = E005h
Return: BX = segment of MX5's memory block or 0000h on failure
Note: caller must free the returned memory block to complete the uninstall
SeeAlso: AX=E006h
--------S-14E006BX0000-----------------------
INT 14 - MX5 Extended FOSSIL - INSTALLATION CHECK
AX = E006h
BX = 0000h
Return: BX = 4D58h ('MX') if installed
AH = major version
AL = minor version
SeeAlso: AX=E000h,AX=E001h,AX=E005h,AX=E007h
--------S-14E007-----------------------------
INT 14 - MX5 Extended FOSSIL - WAIT SPECIFIED NUMBER OF TICKS
AX = E007h
CX = number of ticks to wait
Return: nothing
SeeAlso: AX=E006h
--------N-14E1-------------------------------
INT 14 - TelAPI - "telclose" - TERMINATE TELNET CONNECTION
AH = E1h
BX = connection ID
Return: AX = status (0000h,FFF7h,maybe others) (see #00397)
Note: flushes and releases all buffers and data space used by the connection
SeeAlso: AH=E0h,AH=E6h,AX=FF00h
--------N-14E2-------------------------------
INT 14 - TelAPI - "telread" - BUFFERED READ
AH = E2h
BX = connection ID (see AH=E0h"TelAPI")
CX = length of buffer in bytes
ES:SI -> buffer for data
Return: AX > 0000h number of characters actually read
AX = 0000h host has closed connection
AX < 0000h error code (see #00397)
Note: translates CRLF into local EOL if the connection is in ASCII mode,
negotiates various Telnet options, and immediately executes several
different Telnet action commands
SeeAlso: AH=07h"TelAPI",AH=E3h,AH=E6h,AX=FF00h,INT 6B/AH=01h
--------N-14E3-------------------------------
INT 14 - TelAPI - "telwrite" - BUFFERED WRITE
AH = E3h
BX = connection ID
CX = length of buffer in bytes
ES:SI -> buffer containing data
Return: AX > 0000h number of characters actually written
AX < 0000h error code (see #00397)
Note: translates local EOL into CRLF if the connection is in ASCII mode,
sends the appropriate Telnet commands for the characters selected
for IP, AYT, AO, EC, EL, and Break
SeeAlso: AH=06h"TelAPI",AH=E2h,AH=E6h,AX=FF00h,INT 6B/AH=00h
--------N-14E4-------------------------------
INT 14 - TelAPI - "telioctl" - CONNECTION CONTROL
AH = E4h
BX = connection ID (see AH=E0h"TelAPI")
CX = Telnet command/option identifier (see #00400)
ES:SI -> buffer containing command/option argument (see #00399)
Return: AX = status (0000h, etc.) (see #00397)
Desc: start filter control, initiate Telnet option negotiation, or get filter
control status
SeeAlso: AH=A9h,AH=E6h,AX=FF00h,INT 6B/AX=0600h
Format of TelAPI Telnet command/option argument:
Offset Size Description (Table 00399)
00h 5 WORD numeric arguments
0Ah DWORD -> ASCIZ string
SeeAlso: #00400
(Table 00400)
Values for TelAPI Telnet command/option identifier:
01h ASCII args: none
02h BINARY args: none
03h LOCALECHO args: none client echos data
04h REMOTEECHO args: none server echos data
05h SGA args: none Suppress Go-Ahead signal
07h CHARMODE args: none no line-buffering
08h LINEMODE args: -> erase-line ch perform line-buffering
09h RECVEOL args: EOL type
0Ah SENDEOL args: EOL type
0Bh EOR args: none enable end-of-record sequence
0Dh BREAK args: -> break char
0Eh VERBOSE args: verbosity display Telnet negotiations?
0Fh AYT args: -> AYT escape ch
10h AO args: -> AO escape char
11h IP args: -> IP escape char
12h EC args: -> escape char
13h EL args: -> escape char
14h STATUS args: type; returns data in structure
18h TERMTYPE args: -> terminal type
19h ATTACHPORT args: port number ; returns session number
1Bh TRANSMIT_EOR args: EOR enabled append EOR to every telwrite?
SeeAlso: #00399
--------N-14E5-------------------------------
INT 14 - TelAPI - "telreset" - RESET ALL CONNECTIONS
AH = E5h
Return: AX = status (0000h,other) (see also #00397)
FFFFh unable to reset
Desc: close all sessions and reset TelAPI to defaults
SeeAlso: AH=E1h,AH=E6h,AX=FF00h
--------N-14E6-------------------------------
INT 14 - TelAPI - "telunload" - UNINSTALL
AH = E6h
Return: AX = status
0000h successful
FFFFh unable to uninstall
Notes: TelAPI also supports the NASI/NACS and NCSI APIs on INT 6B
this function invokes AH=E5h internally
SeeAlso: AH=E5h,AX=FF00h,INT 6B/AH=00h,INT 6B/AH=10h
--------N-14E7-------------------------------
INT 14 - TelAPI - "tellist" - GET TELNET SESSION LIST
AH = E7h
ES:SI -> 10-word buffer for session list
Return: AX = 0000h (successful)
ES:SI buffer filled
Desc: determine, for each of the ten allowable sessions, whether the session
is currently available
Note: each word in the buffer is filled with either 0000h to indicate that
the corresponding sesion is unavailable, or 0001h if available
SeeAlso: AH=E0h,AH=E5h,AX=FF00h
--------N-14E8-------------------------------
INT 14 - TelAPI - "telattach" - ATTACH COM PORT TO/FROM TELNET SESSION
AH = E8h
BX = connection ID (see AH=E0h"TelAPI")
CX = serial port number (0000h-0003h = COM1-COM4)
Return: AX = status
0000h successful
FFFFh failed
SeeAlso: AH=E0h,AH=E9h,AX=FF00h
--------N-14E9-------------------------------
INT 14 - TelAPI - "telportosn" - GET SESSION NUMBER FOR COM PORT
AH = E9h
DX = serial port number (0000h-0003h = COM1-COM4)
Return: AX >= 0000h session number
AX < 0000h error code (see #00397)
SeeAlso: AH=E0h,AH=E8h,AH=EAh,AX=FF00h
--------N-14EA-------------------------------
INT 14 - TelAPI - "telstatus" - GET TELNET CONNECTION STATUS INFORMATION
AH = EAh
BX = connection ID (see AH=E0h"TelAPI")
ES:SI -> buffer for status info (see #00401)
Return: AX = status (0000h,FFFFh,etc.)
SeeAlso: AH=E9h,AH=EBh,AX=FF00h
Format of TelAPI Telnet connection status information:
Offset Size Description (Table 00401)
00h 4 BYTEs remote host IP address
04h 20 BYTEs reserved
18h WORD local port number
1Ah BYTE connection mode (00h = ASCII, 01h = Binary)
1Bh BYTE echo flag (00h local, 01h remote)
1Ch BYTE SGA flag (00h will, 01h won't)
1Dh BYTE EOR negotation flag (00h do negotiate, 01h don't)
1Eh BYTE buffering (00h line mode, 01h character mode)
1Fh BYTE reserved
20h BYTE verbose flag (00h no, 01h verbose mode)
21h BYTE received EOL (00h no xlat, 01h CR, 02h LF, 03h CRLF)
22h BYTE sent EOL (00h no translation, 01h CR, 02h LF)
23h BYTE break character
24h BYTE IP escape character
25h BYTE AO escape character
26h BYTE AYT escape character
27h BYTE EC escape character
28h BYTE EL escape character
29h 41 BYTEs ASCIZ Telnet-negotiated terminal type
52h 9 BYTEs session ID
SeeAlso: #00402
--------N-14EB-------------------------------
INT 14 - TelAPI - "telname" - GET AVAILABLE/INUSE STATUS FOR ALL SESSIONS
AH = EBh
ES:SI -> buffer for session statuses (see #00402)
Return: ES:SI buffer filled
SeeAlso: AH=E9h,AH=EAh,AX=FF00h
Format of TelAPI session status information [array]:
Offset Size Description (Table 00402)
00h BYTE session state (00h available, 01h connected)
01h 9 BYTEs session ID if connected
0Ah WORD attached COM port if connected, FFFFh if not
SeeAlso: #00401
--------N-14EC-------------------------------
INT 14 - TelAPI - "telnblkopen" - CREATE TELNET CONNECTION (NON-BLOCKING)
AH = ECh
BX = port number to connect with (default 0017h used if <= 0)
CX:DX = Internet address of remote host
DS:DI -> 2-byte remote host (connection) identifier
ES:SI -> 1700-byte buffer for Telnet state record
0000h:0000h to use TelAPI internally-allocated space
Return: AX = status (0000h-0009h,FED3h,FF37h,FFBDh,FFC0h,FFCDh) (see #00397)
ES:SI buffer filled with state record
ES:SI -> internally-allocated state record in some versions
Notes: the remote host identifier may be used to refer to this connection
this function returns immediately; use AH=EDh to check whether the
connection has been established yet
this function is not supported by the Microdyne TelAPI v3.7
SeeAlso: AH=E0h"TelAPI",AH=EDh,AX=FF00h
--------N-14ED-------------------------------
INT 14 - TelAPI - "telpoll" - POLL TELNET SESSION FOR CONNECTION COMPLETION
AH = EDh
BX = connection ID (see AH=ECh)
Return: AX = status (0000h,0001h,FFFFh,etc.) (see also #00397)
0000h session now connected
0001h connection still in progress
Note: this function is not supported by the Microdyne TelAPI v3.7
SeeAlso: AH=EDh,AX=FF00h
--------a-14F0F0-----------------------------
INT 14 - ASAP v1.0 - ???
AX = F0F0h
DX = ???
???
Return: ???
Program: ASAP (Automatic Screen Access Program) is a shareware screen reader
by MicroTalk
SeeAlso: AX=F0F1h
--------a-14F0F1DX0000-----------------------
INT 14 - ASAP v1.0 - INSTALLATION CHECK
AX = F0F1h
DX = 0000h
Return: DX = segment of resident code
0000h if not installed
Program: ASAP (Automatic Screen Access Program) is a shareware screen reader
by MicroTalk
SeeAlso: AX=F0F0h,INT 10/AX=3800h
--------S-14F4FF-----------------------------
INT 14 - IBM/Yale EBIOS SERIAL I/O - INSTALLATION CHECK
AX = F4FFh
DX = port (00h-03h)
Return: CF clear if present
AX = 0000h
CF set if not present
AX <> 0000h
SeeAlso: AH=36h"ComShare",AH=F9h,AH=FCh
--------S-14F9-------------------------------
INT 14 - IBM/Yale EBIOS SERIAL I/O - REGAIN CONTROL
AH = F9h
DX = port (00h-03h)
Return: nothing
SeeAlso: AX=F4FFh
--------S-14FA-------------------------------
INT 14 - IBM/Yale EBIOS SERIAL I/O - SEND BREAK
AH = FAh
DX = port (00h-03h)
Return: nothing
SeeAlso: AH=07h"MBBIOS",AH=1Ah,AH=8Ah
--------S-14FB-------------------------------
INT 14 - IBM/Yale EBIOS SERIAL I/O - SET OUTGOING MODEM SIGNALS
AH = FBh
AL = modem control register (see #00334 at AH=05h"SERIAL")
DX = port (00h-03h)
Return: nothing
SeeAlso: AH=05h"SERIAL"
--------S-14FC-------------------------------
INT 14 - IBM/Yale EBIOS SERIAL I/O - READ CHARACTER, NO WAIT
AH = FCh
DX = port (00h-03h)
Return: AH = RS232 status bits (see #00304 at AH=03h)
AL = character
SeeAlso: AH=02h,AH=0Ch,AX=FF02h
--------S-14FD02-----------------------------
INT 14 - IBM/Yale EBIOS SERIAL I/O - READ STATUS
AX = FD02h
Return: CX = number of characters available
--------N-14FF00-----------------------------
INT 14 - TelAPI - "telcheck" - INSTALLATION CHECK
AX = FF00h
Return: AX = 00FFh if installed
BX = version number * 100 (decimal)
SeeAlso: AH=E6h,AX=F4FFh
--------S-14FF01-----------------------------
INT 14 - IBM/Yale EBIOS SERIAL I/O - SET SEND BUFFER
AX = FF01h
CX = length of buffer (0000h to cancel buffer assignment)
DX = port (00h-03h)
ES:BX -> send buffer
Return: nothing
SeeAlso: AH=18h,AH=83h"COURIERS",AH=A5h"BAPI",AH=FCh,AX=FF02h
--------S-14FF02-----------------------------
INT 14 - IBM/Yale EBIOS SERIAL I/O - SET RECEIVE BUFFER
AX = FF02h
CX = length of buffer (0000h to cancel buffer assignment)
DX = port (00h-03h)
ES:BX -> receive buffer
Return: nothing
SeeAlso: AH=18h,AH=83h"COURIERS",AH=A5h"BAPI",AH=FCh,AX=FF01h
--------S-14FFF8-----------------------------
INT 14 - COMM-DRV v14.0 - SET BAUD RATE DIVISOR
AX = FFF8h
BX = card type (sub-device number)
CX = new baudrate divisor
DX = index to baud rate
Return: AH bit 7 set on error
AH bit 7 clear if successful
Program: COMM-DRV is a universal serial communications driver by Willies'
Computer Software Company, which supports standard INT 14 and
FOSSIL calls as well as its own interfaces
SeeAlso: AX=8000h"COMM-DRV"
--------S-14FFFB-----------------------------
INT 14 - COMM-DRV v14.0 - GET HIGHEST ALLOWED PORT NUMBER
AX = FFFBh
DX = port number
Return: AH bit 7 set on error
AH bit 7 clear if successful
BX = highest port number
--------S-14FFFC-----------------------------
INT 14 - COMM-DRV v14.0 - GET INT 14 FLAGS
AX = FFFCh
DX = port number
Return: AH bit 7 set on error
AH bit 7 clear if successful
BX = flags (see #00403)
SeeAlso: AX=FFFDh
Bitfields for INT 14h flags:
Bit(s) Description (Table 00403)
0 port active for INT 14h
1 interface behaving like a FOSSIL driver
--------S-14FFFD-----------------------------
INT 14 - COMM-DRV v14.0 - SET INT 14 FLAGS
AX = FFFDh
BX = flags (see #00403)
DX = port number
Return: AH bit 7 set on error
AH bit 7 clear if successful
SeeAlso: AX=FFFCh
--------S-14FFFE-----------------------------
INT 14 - COMM-DRV v14.0 - RESTORE INT 14 VECTOR TO ORIGINAL
AX = FFFEh
Return: AH bit 7 set on error
AH bit 7 clear if successful
--------S-14FFFF-----------------------------
INT 14 - COMM-DRV v14.0 - GET INT 14 INFORMATION AREA
AX = FFFFh
BX:SI -> DWORD buffer for address of information area (see #00404)
(initialized to zeros)
Return: BX:SI buffer filled with nonzero value if installed
Program: COMM-DRV is a universal serial communications driver by Willies'
Computer Software Company, which supports standard INT 14 and
FOSSIL calls as well as its own interfaces
Index: installation check;COMM-DRV
Format of COMM-DRV information area:
Offset Size Description (Table 00404)
00h 8 BYTEs signature "COMM-DRV"
08h 2 BYTEs 00h,00h
0Ah DWORD -> direct address mapping table
0Eh DWORD previous INT 14 vector
--------t-15---------------------------------
INT 15 - Microsoft TSR Specification
No additional information available at this time.
--------B-1500-------------------------------
INT 15 - CASSETTE - TURN ON TAPE DRIVE'S MOTOR (PC and PCjr only)
AH = 00h
Return: CF set on error
AH = 86h no cassette present
CF clear if successful
SeeAlso: AH=01h"CASSETTE",MEM 0040h:0067h"PC"
--------M-1500-------------------------------
INT 15 - Amstrad PC1512 - GET AND RESET MOUSE COUNTS
AH = 00h
Return: CX = signed X count
DX = signed Y count
--------O-1500-------------------------------
INT 15 - VMiX v2+ - INSTALLATION CHECK
AH = 00h
Return: DX = 0798h if installed
AX = version (AH = major, AL = minor)
--------T-1500-------------------------------
INT 15 - MultiDOS Plus - GIVE UP TIME SLICE
AH = 00h
Return: nothing
Note: if issued by the highest-priority task while MultiDOS is using
priority-based rather than round-robin scheduling, control will be
returned to the caller immediately
SeeAlso: AH=03h"MultiDOS",AX=1000h
--------B-1501-------------------------------
INT 15 - CASSETTE - TURN OFF TAPE DRIVE'S MOTOR (PC and PCjr only)
AH = 01h
Return: CF set on error
AH = 86h no cassette present
CF clear if successful
SeeAlso: AH=00h"CASSETTE"
--------b-1501-------------------------------
INT 15 - Amstrad PC1512 - WRITE DATA TO NON-VOLATILE RAM
AH = 01h
AL = NVRAM location (00h to 3Fh) (see #00405)
BL = NVRAM data value
Return: AH = return code
00h OK
01h address bad
02h write error
SeeAlso: AH=02h"Amstrad"
Format of Amstrad NVRAM:
Offset Size Description (Table 00405)
00h BYTE time of day: seconds
01h BYTE alarm time: seconds
02h BYTE time of day: minutes
03h BYTE alarm time: minutes
04h BYTE time of day: hours
05h BYTE alarm time: hours
06h BYTE day of week, 1 = Sunday
07h BYTE day of month
08h BYTE month
09h BYTE year mod 100
0Ah BYTE RTC status register A (see #00406)
0Bh BYTE RTC status register B (see #00407)
0Ch BYTE RTC status register C (read-only) (see #00408)
0Dh BYTE RTC status register D
bit 7: battery good
0Eh 6 BYTEs time and date machine last used
14h BYTE user RAM checksum
15h WORD Enter key scancode/ASCII code
17h WORD Forward delete key scancode/ASCII code
19h WORD Joystick fire button 1 scancode/ASCII code
1Bh WORD Joystick fire button 2 scancode/ASCII code
1Dh WORD mouse button 1 scancode/ASCII code
1Fh WORD mouse button 2 scancode/ASCII code
21h BYTE mouse X scaling factor
22h BYTE mouse Y scaling factor
23h BYTE initial VDU mode and drive count
24h BYTE initial VDU character attribute
25h BYTE size of RAM disk in 2K blocks
26h BYTE initial system UART setup byte
27h BYTE initial external UART setup byte
28h 24 BYTEs available for user application
Note: bytes 00h-0Dh are the same on the IBM AT as they are used/updated by
the clock chip
Bitfields for RTC status register A:
Bit(s) Description (Table 00406)
7 set if date/time being updated
6-4 time base speed, default 010 = 32768 Hz
3-0 interrupt rate selection, default 0110 = 1024 Hz
SeeAlso: #00405
Bitfields for RTC status register B:
Bit(s) Description (Table 00407)
7 clear if normal update, set if abort update
6 periodic interrupt enable
5 alarm interrupt enable
4 update end interrupt enable
3 square wave enable
2 date mode (clear = BCD, set = binary)
1 24-hour format
0 daylight saving time enable
SeeAlso: #00405
Bitfields for RTC status register C:
Bit(s) Description (Table 00408)
7 IRQF flag
6 PF flag
5 AF flag
4 UF flag
SeeAlso: #00405
--------O-1501-------------------------------
INT 15 - VMiX - "sys_chanreq" - I/O CHANNEL OBJECT MANAGER
AH = 01h
STACK: WORD object ID of requestor
DWORD pointer to ASCIZ name of requested method
"assign" assign channel to object
"deassign" deassign channel
"cursor" set cursor on/off
"init" initialize comm port
"open" open I/O channel
"position" set cursor position
"receive" get buffered packet from comm port
"send" send buffered packet to comm port
"vio" set current virtual I/O to specified channel
"window" make window at cursor position
---if "assign"---
WORD object UID
WORD caller UID/PID
DWORD CSL with port
---if "deassign"---
WORD channel ID
---if "cursor"---
WORD channel ID (must be a SRCSINK)
WORD new state (0000h off, 0001h on)
---if "init"---
WORD channel ID (must be a SRCSINK)
WORD comm port number (00h-03h)
WORD UART init code
---if "open"---
WORD channel ID
---if "position"---
WORD channel ID (must be a SRCSINK)
WORD position (high byte = row, low byte = column)
---if "receive"---
DWORD pointer to buffer
---if "send"---
WORD length of buffer
DWORD pointer to buffer
---if "vio"---
WORD channel ID (must be a SRCSINK)
---if "window"---
WORD top left (high byte = row, low byte = column)
WORD bottom right (high byte = row, low byte = column)
Return: DX:AX -> IRP structure or 0000h:0000h
SeeAlso: AH=00h"VMiX",AH=02h"VMiX"
--------T-1501-------------------------------
INT 15 - MultiDOS Plus - REQUEST RESOURCE SEMAPHORE
AH = 01h
AL = semaphore number (00h-3Fh)
Return: AH = status
00h successful
02h invalid semaphore number
Notes: if the semaphore is not owned, ownership is assigned to the calling
task and the call returns immediately
if the semaphore is already owned by another task, the calling task
is placed on a queue for the semaphore and suspended until it can
become owner of the semaphore
semaphore 0 is used internally by MultiDOS to synchronize DOS access
SeeAlso: AH=02h"MultiDOS",AH=10h"MultiDOS",AH=1Bh"MultiDOS"
--------B-1502-------------------------------
INT 15 - CASSETTE - READ DATA (PC and PCjr only)
AH = 02h
CX = number of bytes to read
ES:BX -> buffer
Return: CF clear if successful
DX = number of bytes read
ES:BX -> byte following last byte read
CF set on error
AH = status (see #00409)
SeeAlso: AH=00h"CASSETTE",AH=03h"CASSETTE",MEM 0040h:0069h,MEM 0040h:006Bh"PC"
(Table 00409)
Values for Cassette status:
00h successful
01h CRC error
02h bad tape signals
04h no data
80h invalid command
86h no cassette present
--------b-1502-------------------------------
INT 15 - Amstrad PC1512 - READ DATA FROM NON-VOLATILE RAM
AH = 02h
AL = NVRAM location (00h to 3Fh)
Return: AH = return code
00h OK
01h address bad
02h checksum error
AL = NVRAM data value
SeeAlso: AH=01h"Amstrad"
--------O-1502-------------------------------
INT 15 - VMiX - "sys_memreq" - MEMORY OBJECT MANAGER
AH = 02h
STACK: WORD object ID of requestor
DWORD pointer to ASCIZ name of requested method
"assign" allocate low memory block
"assign extended" allocate extended memory pages
"assign gdt" allocate GDT selector
"paged" allocate low paged memory
"paged extended" alllocate extended memory pages
"deassign" free memory block
"deassign gdt" free GDT selector
"getvpage" get physical address for virtual page
"setvpage" set physical address for virtual page
"info" get VMiX memory usage info block
"move" move contents of 32-bit memory
"newmcb" make new DOS memory control block
"owner" get process ID of MCB or PSP owner
"umb" allocate upper memory block
"video" toggle system use of video memory and get stat
---if "assign"---
WORD number of objects
WORD size in bytes (multiple of 512 bytes)
---if "assign extended"---
WORD number of objects
WORD size in bytes (multiple of 4K)
---if "assign gdt"---
WORD access type (low byte)
WORD segment size in paragraphs
DWORD pointer to start of physical segment
---if "paged"---
WORD number of 512-byte pages
---if "paged extended"
WORD number of 4K pages
---if "deassign"---
DWORD pointer returned by previous allocation call
---if "deassign gdt"---
WORD GDT selector
---if "getvpage"---
WORD owner's process ID
DWORD pointer to buffer for page structure (struct VPGE)
---if "setvpage"---
WORD owner's process ID
DWORD pointer to new page structure (struct VPGE)
---if "info"---
no additional arguments
---if "move"
DWORD 32-bit source address
DWORD 32-bit destination address
WORD number of words to move
---if "newmcb"---
DWORD pointer to new MCB's location
WORD size of memory block
DWORD pointer to ASCIZ name string (max 8 chars)
---if "owner"---
WORD MCB or PSP segment
---if "umb"---
WORD size in paragraphs
---if "video"---
no additional arguments
Return: DX:AX -> memory block or VPGE struct or 0000h:0000h
SeeAlso: AH=00h"VMiX",AH=01h"VMiX"
--------T-1502-------------------------------
INT 15 - MultiDOS Plus - RELEASE RESOURCE SEMAPHORE
AH = 02h
AL = semaphore number (00h-3Fh)
Return: AH = status
00h successful
01h not semaphore owner
02h invalid semaphore number
Notes: if any tasks are waiting for the semaphore, the first task on the wait
queue will become the new owner and be reawakened
do not use within an interrupt handler
SeeAlso: AH=01h"MultiDOS",AH=10h"MultiDOS",AH=1Ch"MultiDOS"
--------B-1503-------------------------------
INT 15 - CASSETTE - WRITE DATA (PC and PCjr only)
AH = 03h
CX = number of bytes to write
ES:BX -> data buffer
Return: CF clear if successful
ES:BX -> byte following last byte written
CF set on error
AH = status (see #00409)
CX = 0000h
SeeAlso: AH=00h"CASSETTE",AH=02h"CASSETTE"
--------V-1503-------------------------------
INT 15 - Amstrad PC1512 - WRITE VDU COLOR PLANE WRITE REGISTER
AH = 03h
AL = value (I,R,G,B bits)
Return: nothing
SeeAlso: AH=04h"Amstrad"
--------O-1503-------------------------------
INT 15 - VMiX - "sys_pinput" - PROMPTED CONSOLE INPUT
AH = 03h
STACK: DWORD pointer to ASCII prompt
WORD field outline character
WORD length of input field (max 7Fh)
DWORD address of pointer to input buffer
Return: AX = length of input (input buffer is padded with blanks)
SeeAlso: AH=04h"VMiX"
--------T-1503-------------------------------
INT 15 - MultiDOS Plus - SUSPEND TASK FOR INTERVAL
AH = 03h
DX = number of time slices to remain suspended
Return: after specified interval has elapsed
Note: when priority-based scheduling is in use, high-priority tasks should
use this function to yield the processor
SeeAlso: AH=00h"MultiDOS",AH=0Ah"MultiDOS"
--------B-1504-------------------------------
INT 15 - SYSTEM - BUILD ABIOS SYSTEM PARAMETER TABLE (PS)
AH = 04h
ES:DI -> 32-byte results buffer for System Parameter Table (see #00410)
DS = segment containing ABIOS RAM extensions (zero if none)
Return: CF clear if successful
AH = 00h success
ES:DI buffer filled
AL destroyed
CF set on failure
AX destroyed
AH = 80h/86h if not supported
SeeAlso: AH=05h"ABIOS",AH=C1h
Format of ABIOS System Parameter Table:
Offset Size Description (Table 00410)
00h DWORD FAR address of ABIOS Common Start Routine
04h DWORD FAR address of ABIOS Interrupt Routine
08h DWORD FAR address of ABIOS Time-out Routine
0Ch WORD number of bytes of stack required by this ABIOS implementation
0Eh 16 BYTEs reserved
1Eh WORD number of entries in initialization table
--------V-1504-------------------------------
INT 15 - Amstrad PC1512 - WRITE VDU COLOR PLANE READ REGISTER
AH = 04h
AL = value (RDSEL1 and RDSEL0)
Return: nothing
SeeAlso: AH=03h"Amstrad",AH=05h"Amstrad"
--------O-1504-------------------------------
INT 15 - VMiX - "sys_vprintf" - FORMATTED OUTPUT TO STREAM
AH = 04h
STACK: DWORD control string
DWORD array of arguments
Return: nothing
SeeAlso: AH=03h"VMiX"
--------T-1504-------------------------------
INT 15 - MultiDOS Plus - SEND MESSAGE TO ANOTHER TASK
AH = 04h
AL = mailbox number (00h-3Fh)
CX = message length in bytes
DS:SI -> message
Return: AH = status
00h successful
01h out of message memory
02h invalid mailbox number
Note: the message is copied into a system buffer; the caller may immediately
reuse its buffer
SeeAlso: AH=05h"MultiDOS"
--------B-1505-------------------------------
INT 15 - SYSTEM - BUILD ABIOS INITIALIZATION TABLE (PS)
AH = 05h
ES:DI -> results buffer of length 18h * Number_of_Entries (see #00411)
DS = segment containing ABIOS RAM extensions (zero if none)
Return: CF clear if successful
AH = 00h success
ES:DI buffer filled
AL destroyed
CF set on failure
AX destroyed
AH = 80h/86h if not supported
SeeAlso: AH=04h"ABIOS",AH=C1h
Format of one entry of ABIOS Initialization Table:
Offset Size Description (Table 00411)
00h WORD device ID (see #00412)
02h WORD number of Logical IDs
04h WORD Device Block length (zero for ABIOS patch or extension)
06h DWORD -> init routine for Device Block and Function Transfer Table
0Ah WORD request block length
0Ch WORD Function Transfer Table length (zero for a patch)
0Eh WORD Data Pointers length (in Common Data Area)
10h BYTE secondary device ID (hardware level this ABIOS ver supports)
11h BYTE revision (device driver revision level this ABIOS supports)
12h 6 BYTEs reserved
(Table 00412)
Values for ABIOS device ID:
00h ABIOS internal calls
01h floppy disk
02h hard disk
03h video
04h keyboard
05h parallel port
06h serial port
07h system timer
08h real-time clock
09h system services
0Ah NMI
0Bh mouse
0Eh CMOS RAM
0Fh DMA
10h Programmable Option Select (POS)
16h keyboard password
--------V-1505-------------------------------
INT 15 - Amstrad PC1512 - WRITE VDU GRAPHICS BORDER REGISTER
AH = 05h
AL = value (I,R,G,B bits)
Return: nothing
SeeAlso: AH=04h"Amstrad"
--------O-1505-------------------------------
INT 15 - VMiX - "sys_getpid" - GET PROCESS ID OF CURRENT PROCESS
AH = 05h
Return: AX = process ID
SeeAlso: AH=06h"VMiX",AH=0Bh"VMiX"
--------T-1505-------------------------------
INT 15 - MultiDOS Plus - CHECK MAILBOX
AH = 05h
AL = mailbox number (00h-3Fh)
Return: AH = status
00h successful
DX = length of first message in queue, 0000h if no message
02h invalid mailbox number
SeeAlso: AH=04h"MultiDOS",AH=06h"MultiDOS"
--------b-1506-------------------------------
INT 15 - Amstrad PC1512 - GET ROS VERSION NUMBER
AH = 06h
Return: BX = version number
--------O-1506-------------------------------
INT 15 - VMiX - "sys_getpcb" - GET POINTER TO PROCESS CONTROL BLOCK
AH = 06h
STACK: WORD process ID
Return: DX:AX -> process control block
SeeAlso: AH=05h"VMiX",AH=07h"VMiX",AH=08h"VMiX"
--------T-1506-------------------------------
INT 15 - MultiDOS Plus - READ MAILBOX
AH = 06h
AL = mailbox number (00h-3Fh)
CX = size of buffer in bytes
ES:DI -> buffer for message
Return: AH = status
00h successful
CX = number of bytes copied
DX = actual length of message
02h invalid mailbox number
Note: if the caller's buffer is not large enough, the message is truncated
and the remainder is lost
SeeAlso: AH=04h"MultiDOS",AH=05h"MultiDOS"
--------O-1507-------------------------------
INT 15 - VMiX - "sys_getocb" - GET POINTER TO OBJECT CONTROL BLOCK
AH = 07h
STACK: WORD object type
Return: DX:AX -> object control block
SeeAlso: AH=06h"VMiX",AH=08h"VMiX"
----------1507-------------------------------
INT 15 - IBM SurePath BIOS - Officially "Private" Function
AH = 07h
SeeAlso: AH=08h"IBM"
--------T-1507-------------------------------
INT 15 - MultiDOS Plus - SPAWN INTERNAL TASK (CREATE NEW THREAD)
AH = 07h
BX:CX = entry point of new task
DX = stack size in paragraphs
Return: AH = status
00h successful
01h no free task control blocks
02h no free memory for task's stack
Note: execution returns immediately to calling task
SeeAlso: AH=08h"MultiDOS",AH=09h"MultiDOS",AH=13h"MultiDOS"
--------O-1508-------------------------------
INT 15 - VMiX - "sys_getccb" - GET CHANNEL CONTROL BLOCK
AH = 08h
STACK: WORD channel ID
Return: DX:AX -> channel control block
SeeAlso: AH=06h"VMiX",AH=07h"VMiX"
--------B-1508-------------------------------
INT 15 - IBM SurePath BIOS - WAIT REQUESTED TIME PERIOD
AH = 08h
AL = function
00h wait in increments of 15.025 microseconds
CX = number of time increments to wait (0000h = maximum)
80h wait in increments of 840 ns
ECX = number of time increments to wait
81h I/O event wait
BH = bitmask of bits to check
BL = expected pattern
DX = I/O port address
ECX = number of 840 ns microticks to wait
Return: ECX = 00000000h if expected pattern did not occur
82h memory event wait
BH = bitmask of bits to check
BL = expected pattern
ES:SI -> BYTE to check
ECX = number of 840 ns microticks to wait
Return: ECX = 00000000h if expected pattern did not occur
other reserved
Return: CF clear if successful
CF set on error
AH = status
00h successful
01h used 15.025 microsecond interval, time rounded up
08h reserved subfunction
86h function not supported
Notes: IBM classifies this function as optional
if the POST determines that the timer is nonfunctional, this function
uses the 15.025 microsecond refresh timer instead of the
full-resolution timer
SeeAlso: AH=07h"IBM",AH=09h"IBM",AH=86h
--------T-1508-------------------------------
INT 15 - MultiDOS Plus - TERMINATE INTERNAL TASK (KILL THREAD)
AH = 08h
Return: calling task terminated, so execution never returns to caller
Notes: an internal task must be terminated with this function rather than a
DOS termination function
task's stack space is returned to parent task's memory pool
SeeAlso: AH=07h"MultiDOS"
--------O-1509-------------------------------
INT 15 - VMiX - "sys_getqueue" - GET ID OF QUEUED ELEMENT
AH = 09h
STACK: WORD queue ID (0 = process queue, 1 = object, 3 = type)
WORD subqueue ID
Return: AX = queue ID
SeeAlso: AH=0Ah"VMiX"
----------1509-------------------------------
INT 15 - IBM BIOS - RESERVED FOR PCMCIA SYSTEM RESOURCE TABLE ACCESS
AH = 09h
no further details available
SeeAlso: AH=08h"IBM"
--------T-1509-------------------------------
INT 15 - MultiDOS Plus - CHANGE TASK'S PRIORITY
AH = 09h
AL = new priority
Return: nothing
Note: the priority has different meanings depending on whether priority-
based or round-robin scheduling is used
SeeAlso: AH=07h"MultiDOS"
--------O-150A-------------------------------
INT 15 - VMiX - "sys_qetqnext" - GET ID OF NEXT QUEUED ELEMENT
AH = 0Ah
STACK: WORD queue ID (0 = process queue, 1 = object, 3 = type)
WORD ID of current element in queue chain
Return: AX = ID of next element
SeeAlso: AH=09h"VMiX",AH=0Fh"VMiX"
--------T-150A-------------------------------
INT 15 - MultiDOS Plus - CHANGE TIME SLICE INTERVAL
AH = 0Ah
AL = new interval
00h = 55.0 ms (default)
80h = 27.5 ms
40h = 13.75 ms
20h = 6.88 ms
10h = 3.44 ms
08h = 1.72 ms
SeeAlso: AH=03h"MultiDOS"
--------O-150B-------------------------------
INT 15 - VMiX - "sys_sysreq" - SYSTEM CONFIGURATION MANAGER
AH = 0Bh
STACK: WORD caller's UID
DWORD pointer to ASCIZ name of requested method
"abort" abort current send/receive on comm port
"block" start/end critical section
"close" terminate interrupt-drive comm I/O
"open" prepare comm port for interrupt-driven I/O
"delay" set delay timer and wait
"hibernate" put process to sleep
"ints" enable/disable interrupt-driven INT 14h
"length" get current send/receive buffer offsets
"kswitch" switch stacks
"numproc" get number of active processes
"protocol" set protocol function for comm interrupts
"relocate" set/reset VMiX flag for relocating to himem
"status" get current open comm port status
"wake" awaken a process
"xport" get comm port polled for logins
---if "abort"---
no additional arguments
---if "block"---
WORD 0000h end, 0001h start
---if "close"---
no additional arguments
---if "open"---
WORD comm port (00h-03h)
WORD BIOS parameter byte (see #00300 at INT 14/AH=00h),
except bits 7-5: 000 = 19200, 001 = 38400, 011 = 115200
---if "delay"---
WORD time in seconds
---if "hibernate"---
WORD process ID
---if "ints"---
WORD 0000h if no, 0001h if yes
---if "length","numproc","relocate","status","xport"---
no additional arguments
---if "kswitch"---
DWORD pointer to new stack
---if "protocol"---
DWORD pointer to function (must be in low "assign"ed memory
when in 386 mode)
---if "wake"---
WORD process ID
Return: DX:AX -> result or 0000h:0000h
---if "length"---
BYTE receive offset
BYTE send offset
---if "kswitch"---
DWORD old stack pointer
---if "numproc"---
WORD number of active processes
---if "status"---
current open comm port status
---if "xport"---
current comm port being polled for logins
Note: the "delay" command reportedly disables the keyboard until the delay
completes
SeeAlso: AH=05h"VMiX",AH=0Eh"VMiX"
--------T-150B-------------------------------
INT 15 - MultiDOS Plus - FORCE DISPLAY OUTPUT TO PHYSICAL SCREEN MEMORY
AH = 0Bh
Return: nothing
Notes: sets calling task's screen pointer to actual screen memory; the pointer
may be restored with AH=0Ch
caller's video mode must be same as foreground task's video mode
any text written while in the background will be saved to the
foreground task's virtual screen when it switches to the background
useful if a background task wants to display a message on the
foreground screen
SeeAlso: AH=0Ch"MultiDOS"
--------O-150C-------------------------------
INT 15 - VMiX - "sys_getstack" - GET POINTER TO PROCESS TSS STACK
AH = 0Ch
STACK: WORD process ID
Return: DX:AX -> TSS stack store
SeeAlso: AH=00h"VMiX"
--------T-150C-------------------------------
INT 15 - MultiDOS Plus - RESTORE OLD VIDEO DISPLAY MEMORY
AH = 0Ch
Return: nothing
Note: restores task's screen pointer saved by AH=0Bh; must not be called
unless AH=0Bh has been called first
SeeAlso: AH=0Bh"MultiDOS"
--------O-150D-------------------------------
INT 15 - VMiX - "sys_spawn" - START A CHILD PROCESS JOB SHELL
AH = 0Dh
STACK: DWORD ASCIZ string starting with requested I/O channel and
followed by standard VMiX shell command string
Return: AX = process ID or error code "SYS_ERROR"
Note: the maximum string length is 7Fh characters
SeeAlso: AH=0Eh"VMIX",AH=11h"VMiX",INT 21/AH=4Bh
--------T-150D-------------------------------
INT 15 - MultiDOS Plus - DISABLE MULTITASKING
AH = 0Dh
Return: nothing
Note: calling task receives all time slices until AH=0Eh is called; this
allows time-critical events or nonreentrant code to be processed
SeeAlso: AH=0Eh"MultiDOS",AH=10h"MultiDOS",AX=101Bh,AH=20h"MultiDOS"
--------O-150E-------------------------------
INT 15 - VMiX - "sys_kill" - HARD TERMINATE PROCESS
AH = 0Eh
STACK: WORD process ID
Return: AX = status (SYS_OK or SYS_ERROR)
SeeAlso: AH=0Bh"VMiX",AH=0Dh"VMIX"
--------T-150E-------------------------------
INT 15 - MultiDOS Plus - ENABLE MULTITASKING
AH = 0Eh
Return: nothing
SeeAlso: AH=0Dh"MultiDOS",AX=101Ch,AH=20h"MultiDOS"
--------d-150F-------------------------------
INT 15 C - SYSTEM - FORMAT UNIT PERIODIC INTERRUPT (PS ESDI drives only)
AH = 0Fh
AL = phase code
00h reserved
01h surface analysis
02h formatting
Return: CF clear if formatting should continue
CF set if formatting should terminate
Note: called during ESDI drive formatting after each cylinder is completed
SeeAlso: INT 13/AH=1Ah
--------O-150F-------------------------------
INT 15 - VMiX - "sys_getqkey" - GET KEY FIELD OF QUEUED ELEMENT
AH = 0Fh
STACK: WORD queue ID (0 = process queue, 1 = object q, 3 = type q)
WORD ID of element in queue chain
Return: AX = key
SeeAlso: AH=0Ah"VMiX"
--------T-150F-------------------------------
INT 15 - MultiDOS Plus - EXECUTE A MULTIDOS PLUS COMMAND
AH = 0Fh
DS:BX -> ASCIZ command
Return: after command has been processed
Notes: specified string is executed as if it had been typed at the MultiDOS
command prompt
the task is placed on a queue which MultiDOS examines periodically and
is suspended until MultiDOS has processed the command
all lowercase characters up to the first blank are converted to upper
case within the given buffer
--------!---Section--------------------------
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