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<TITLE>Int 15/AX=DB01h
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Int 15/AX=DB01h - AMI BIOS - Flash ROM - GET BIOS SUBSYSTEM INFORMATION -
AX = DB01h
CL = BIOS subsystem information identifier (see #00545)
Return: CF clear if successful
AX = 0000h
ES:DI - 56-byte record describing subsystem (see #00546)
CF set on error
AH = status
01h nonexistent subsystem
86h function not supported
AL = 00h
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<h2>Int 15/AX=DB01h
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<h3><font color=#C00040>AMI BIOS - Flash ROM - GET BIOS SUBSYSTEM INFORMATION</font></h3>
<PRE>
AX = DB01h
CL = BIOS subsystem information identifier <a href="rb-1670.htm#Table545" tppabs="http://www.ctyme.com/intr/rb-1670.htm#Table545">(see #00545)</a><br>
<p><b>Return:</b><br>CF clear if successful
AX = 0000h
ES:DI -> 56-byte record describing subsystem <a href="rb-1670.htm#Table546" tppabs="http://www.ctyme.com/intr/rb-1670.htm#Table546">(see #00546)</a>
CF set on error
AH = status
01h nonexistent subsystem
86h function not supported
AL = 00h
</PRE>
<p><b>Note:</b>
Used by FMUP.EXE, Intel's Flash Memory Update utility
<p><b>See Also:</b>
<a href="rb-1669.htm" tppabs="http://www.ctyme.com/intr/rb-1669.htm">AX=DB00h</a> - <a href="rb-1671.htm" tppabs="http://www.ctyme.com/intr/rb-1671.htm">AX=DB02h</a>
<PRE>
<p>
<a name=table545></a>
(Table 00545)
Values for AMI BIOS subsystem identifier:
00h recovery code
01h system BIOS
02h PCI configuration data
03h OEM logo data area <a href="rb-1670.htm#Table547" tppabs="http://www.ctyme.com/intr/rb-1670.htm#Table547">(see #00547)</a>
04h system BIOS/Language Set (one system).
Configuration utility (another system)
</PRE>
<p><b>See Also:</b>
#00546
<PRE>
<p>
Format of AMI BIOS subsystem information:
<a name=table546></a>
Offset Size Description (Table 00546)
00h BYTE subsystem identifier/logical area type <a href="rb-1670.htm#Table545" tppabs="http://www.ctyme.com/intr/rb-1670.htm#Table545">(see #00545)</a>
01h DWORD subsystem (FlashROM page) size in bytes
<p><b>05h BYTE flag:</b><br>Loadable from file (FFh=yes)
<p><b>06h BYTE flag:</b><br>Reboot after update (FFh=yes)
<p><b>07h BYTE flag:</b><br>Update entire image (FFh=yes)
08h 24 BYTEs subsystem/logical area name
20h BYTE subsystem identifier???
<p><b>21h BYTE flag:</b><br>Reprogrammable if FFh
22h BYTE ??? (01h,02h seen)
23h 5 BYTEs ??? (apparently always 00h)
28h 16 BYTEs BIOS reserved string (usually version number)
</PRE>
<p><b>See Also:</b>
#00544
<PRE>
<p>
Format of AMI OEM Logo data area:
<a name=table547></a>
Offset Size Description (Table 00547)
00h 8 BYTEs signature
"TEXTLOGO" if text-mode OEM logo
8 DUP (FFh) if unused
08h WORD offset of logo font definition table
0Ah WORD offset of logo data
0Ch WORD size of logo font table in words
0Eh WORD offset of upper left corner of logo in video page
10h WORD width of logo
12h WORD height of logo
14h BYTE reserved???
var var logo font definition (16 bytes per character)
var var logo data as character/attribute pairs
</PRE>
<p><b>Note:</b>
The attribute for the logo characters specifies which font will be used
for that character. If bit 3 is cleared, the normal system font is
used; if bit 3 is set, the logo font is used, with screen colors
adjusted to match the corresponding non-bright attribute for the
system font
<p><b>See Also:</b>
#00545 - #00546
<p>
<b>Category: <a href="cat-044.htm" tppabs="http://www.ctyme.com/intr/cat-044.htm">
Vendor-specific BIOS Extensions</a>
- <a href="int-15.htm" tppabs="http://www.ctyme.com/intr/int-15.htm">
Int 15h</a>
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