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<TITLE>Int 21/AX=252Bh/BH=0Bh
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Int 21/AX=252Bh/BH=0Bh - Phar Lap 386/DOS-Extender v4.1+ - MAP DATA FILE AT FILE OFFSET -
AX = 252Bh
BH = 0Bh
BL = subfunction
00h by linear address
ECX = linear address at which to map data file
01h by logical address
ES:ECX = logical address at which to map data file
EDX = number of bytes to map
DS:ESI - mapping structure (see #01373)
DS:EDI - ASCIZ filename
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<h2>Int 21/AX=252Bh/BH=0Bh
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<h3><font color=#C00040>Phar Lap 386/DOS-Extender v4.1+ - MAP DATA FILE AT FILE OFFSET</font></h3>
<PRE>
AX = 252Bh
BH = 0Bh
BL = subfunction
00h by linear address
ECX = linear address at which to map data file
01h by logical address
ES:ECX = logical address at which to map data file
EDX = number of bytes to map
DS:ESI -> mapping structure <a href="rb-2654.htm#Table1373" tppabs="http://www.ctyme.com/intr/rb-2654.htm#Table1373">(see #01373)</a>
DS:EDI -> ASCIZ filename<br>
<p><b>Return:</b><br>CF clear if successful
CF set on error
EAX = error code
0002h file error
ECX = phase (01h opening file, 02h seeking, 03h reading)
EDX = error code returned by DOS
0009h invalid address
0081h invalid parameters or 386|VMM not present
0086h all 386|VMM file handles already in use
</PRE>
<p><b>See Also:</b>
<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>
<PRE>
<p>
Format of Phar Lap mapping structure:
<a name=table1373></a>
Offset Size Description (Table 01373)
00h DWORD starting file offset to be mapped
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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DOS Extenders</a>
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