205 lines
12 KiB
HTML
205 lines
12 KiB
HTML
<HTML>
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<HEAD>
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<TITLE>Int 78
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</TITLE>
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<META NAME="Description" CONTENT="
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Int 78 - UofSalford DBOS DOS extender - API -
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AH = function
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00h (PB) display 32-bit memory specified by command argument
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01h (PT) display 32-bit instruction(s) specified by command arg
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02h specify offset to subsequent PB and PT commands
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03h switch to protected mode
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DWORD following INT instruction point to map; protected-mode
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entry point is immediately following the DWORD
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Return: never
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Note: if bit 31 of the map address is set, only a stub was
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loaded by DOS and DBOS will load the entire program
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">
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</HEAD>
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<BODY BGCOLOR="#FFD0A0">
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<center>
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<h2>Int 78
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</h2>
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<td><a href="alpha.htm" tppabs="http://www.ctyme.com/intr/alpha.htm">Contents</a></td>
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<p><img src="rbline.gif" tppabs="http://graphics.ctyme.com/gif/rbline.gif" width="100%" alt="------"><p>
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<h3><font color=#C00040>UofSalford DBOS DOS extender - API</font></h3>
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<PRE>
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AH = function
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00h (PB) display 32-bit memory specified by command argument
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01h (PT) display 32-bit instruction(s) specified by command arg
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02h specify offset to subsequent PB and PT commands
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03h switch to protected mode
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DWORD following INT instruction point to map; protected-mode
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entry point is immediately following the DWORD
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<p><b>Return:</b><br>Never
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</PRE>
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<p><b>Note:</b>
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If bit 31 of the map address is set, only a stub was
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loaded by DOS and DBOS will load the entire program
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04h specify that subsequent load (AH=03h) should leave program in
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memory
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05h release program from memory
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06h set break point at address and option count from commandline
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07h resume program execution
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08h single-step program
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09h set read/write breakpoint using 386 debug registers
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0Ah set write breakpoint using 386 debug register
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0Bh set memory byte to new value
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0Ch display CPU registers
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0Dh run until specified program address reached
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0Fh print trace from program map
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10h specify an offset using a map symbol
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14h print memory without any offset
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18h switch DBOS into/out of test mode (ON/OFF commandline args)
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1Dh get address of real/protected-mode communication buffer
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<PRE>
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<p><b>Return:</b><br>ES:BP -> comm buffer
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1Eh set real-mode memory size (specify how much real-mode memory
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to leave free when running FTN77 programs)
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22h uninstall DBOS
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24h force DBOS to emulate coprocessor instructions
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26h set named DBOS switches from commandline
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27h reset named DBOS switched from commandline
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2Ah set list of dynamic link libraries to contents of commandline
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file
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35h specify that subsequent load (AH=03h) should stop at first
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instruction<br>
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<p><b>Return:</b><br>???
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</PRE>
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<p><b>Notes:</b>
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DBOS supports functions 00h through 50h; many of these functions
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provide a low-level debugging interface.
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Command arguments are read from the calling program's PSP
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<p><b>See Also:</b>
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<a href="rb-7833.htm" tppabs="http://www.ctyme.com/intr/rb-7833.htm">INT 79"DBOS"</a>
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<PRE>
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<p><b>Index:</b><br>Uninstall;DBOS DOS extender
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</PRE>
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<p>
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<b>Category: <a href="cat-009.htm" tppabs="http://www.ctyme.com/intr/cat-009.htm">
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DOS Extenders</a>
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- <a href="int-78.htm" tppabs="http://www.ctyme.com/intr/int-78.htm">
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Int 78h</a>
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- <a href="alpha-u.htm" tppabs="http://www.ctyme.com/intr/alpha-u.htm">
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U</a>
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<td><a href="int.htm" tppabs="http://www.ctyme.com/intr/int.htm">Interrups</a></td>
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<td><a href="cat.htm" tppabs="http://www.ctyme.com/intr/cat.htm">Categories</a></td>
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<td><a href="alpha.htm" tppabs="http://www.ctyme.com/intr/alpha.htm">Contents</a></td>
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