184 lines
12 KiB
HTML
184 lines
12 KiB
HTML
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<TITLE>Int 21/AX=252Bh/BH=0Bh
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<META NAME="Description" CONTENT="
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Int 21/AX=252Bh/BH=0Bh - Phar Lap 386/DOS-Extender v4.1+ - MAP DATA FILE AT FILE OFFSET -
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AX = 252Bh
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BH = 0Bh
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BL = subfunction
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00h by linear address
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ECX = linear address at which to map data file
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01h by logical address
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ES:ECX = logical address at which to map data file
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EDX = number of bytes to map
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DS:ESI - mapping structure (see #01373)
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DS:EDI - ASCIZ filename
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">
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<h2>Int 21/AX=252Bh/BH=0Bh
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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>Phar Lap 386/DOS-Extender v4.1+ - MAP DATA FILE AT FILE OFFSET</font></h3>
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<PRE>
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AX = 252Bh
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BH = 0Bh
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BL = subfunction
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00h by linear address
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ECX = linear address at which to map data file
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01h by logical address
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ES:ECX = logical address at which to map data file
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EDX = number of bytes to map
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DS:ESI -> mapping structure <a href="rb-2654.htm#Table1373" tppabs="http://www.ctyme.com/intr/rb-2654.htm#Table1373">(see #01373)</a>
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DS:EDI -> ASCIZ filename<br>
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<p><b>Return:</b><br>CF clear if successful
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CF set on error
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EAX = error code
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0002h file error
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ECX = phase (01h opening file, 02h seeking, 03h reading)
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EDX = error code returned by DOS
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0009h invalid address
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0081h invalid parameters or 386|VMM not present
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0086h all 386|VMM file handles already in use
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</PRE>
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<p><b>See Also:</b>
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<a href="rb-2648.htm" tppabs="http://www.ctyme.com/intr/rb-2648.htm">AX=252Bh/BH=03h</a> - <a href="rb-2652.htm" tppabs="http://www.ctyme.com/intr/rb-2652.htm">AX=252Bh/BH=09h</a>
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<PRE>
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<p>
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Format of Phar Lap mapping structure:
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<a name=table1373></a>
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Offset Size Description (Table 01373)
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00h DWORD starting file offset to be mapped
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04h DWORD DOS file access and sharing modes <a href="javascript:if(confirm('http://www.ctyme.com/intr/rb-0000.htm \n\nThis file was not retrieved by Teleport Pro, because it was unavailable, or its retrieval was aborted, or the project was stopped too soon. \n\nDo you want to open it from the server?'))window.location='http://www.ctyme.com/intr/rb-0000.htm#Table0'" tppabs="http://www.ctyme.com/intr/rb-0000.htm#Table0"></a>(see #01403 at INT 21/AH=3Dh)
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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-21.htm" tppabs="http://www.ctyme.com/intr/int-21.htm">
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Int 21h</a>
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P</a>
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