194 lines
12 KiB
HTML
194 lines
12 KiB
HTML
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<TITLE>Int 2F/AX=D000h
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<META NAME="Description" CONTENT="
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Int 2F/AX=D000h - MDEBUG display driver - GET DRIVER STATUS -
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AX = D000h
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Return: CF set on error
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all other registers must be unchanged)
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CF clear if successful
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AL = FFh
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AH = driver semaphor
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00h driver is not active
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01h driver is active
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BX = CS of the driver
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CX = driver version (CH = major, CL = minor, must be = 013Ch)
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<h2>Int 2F/AX=D000h
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<h3><font color=#C00040>MDEBUG display driver - GET DRIVER STATUS</font></h3>
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<PRE>
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AX = D000h<br>
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<p><b>Return:</b><br>CF set on error
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all other registers must be unchanged)
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CF clear if successful
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AL = FFh
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AH = driver semaphor
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00h driver is not active
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01h driver is active
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BX = CS of the driver
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CX = driver version (CH = major, CL = minor, must be >= 013Ch)
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DL = buffer semaphor
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00h driver is not pending
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01h driver is pending between functions 02h and 03h
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DH = show semaphor
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00h driver is not pending
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01h driver is pending between functions 04h and 05h
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</PRE>
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<p><b>Program:</b>
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MDEBUG is a shareware memory-resident debugging tool by Bernd
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Schemmer, including a memory monitor, an interpreter and a
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disassembler
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<PRE>
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<p><b>Range:</b><br>AH=C0h to AH=FFh, selected by switch or programmatically
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</PRE>
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<p><b>Notes:</b>
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MDEBUG can use any two consecutive multiplex numbers between C0h and
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FFh; the default is D0h for the display driver and D1h for the
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command driver (call INT 60/AH=00h"MDEBUG" for the actual multiplex
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numbers used).
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This function MUST be reentrant, as MDEBUG calls it after every popup
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before any other actions. The handler should not change any
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registers if the display is in an unsupported mode or in a mode
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MDEBUG supports itself, e.g. a normal text mode with at least 80x25
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characters (i.e. 80x43 or 132x44 (v1.60+)). In this case MDEBUG will
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not call any of the other functions for this popup session..
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MDEBUG will not call the other functions if the returned version is
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less than the actual version of MDEBUG..
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If the driver is reentrant, DL and DH should be 00h
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<p><b>See Also:</b>
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<a href="rb-5497.htm" tppabs="http://www.ctyme.com/intr/rb-5497.htm">AX=D001h</a> - <a href="rb-5498.htm" tppabs="http://www.ctyme.com/intr/rb-5498.htm">AX=D002h</a> - <a href="rb-5500.htm" tppabs="http://www.ctyme.com/intr/rb-5500.htm">AX=D003h</a> - <a href="rb-5501.htm" tppabs="http://www.ctyme.com/intr/rb-5501.htm">AX=D004h</a> -
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<p>
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<b>Category: <a href="cat-006.htm" tppabs="http://www.ctyme.com/intr/cat-006.htm">
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Debuggers/Debugging Tools</a>
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- <a href="int-2f-1.htm" tppabs="http://www.ctyme.com/intr/int-2F.htm">
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Int 2Fh</a>
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M</a>
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