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Int E0/CL=B5h - REAL/32 - MP_MAP - MAP PHYSICAL MEMORY -
CL = B5h
DS:DX - Memory Physical Parameter Block (see #04057)
Return: AX = status (0000h successful, FFFFh error)
may destroy SI,DI,DS
SeeAlso: INT E0/CL=B3h
Format of REAL/32 Memory Physical Parameter Block:
Offset Size Description (Table 04057)
00h WORD 4K page number in first megabyte to be mapped
02h WORD number of page to map into above page, or 0000h to unmap
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<h2>Int E0/CL=B5h
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<h3><font color=#C00040>REAL/32 - MP_MAP - MAP PHYSICAL MEMORY</font></h3>
<PRE>
CL = B5h
DS:DX -> Memory Physical Parameter Block <a href="rb-8583.htm#Table4057" tppabs="http://www.ctyme.com/intr/rb-8583.htm#Table4057">(see #04057)</a><br>
<p><b>Return:</b><br>AX = status (0000h successful, FFFFh error)
may destroy SI,DI,DS
</PRE>
<p><b>See Also:</b>
<a href="rb-8581.htm" tppabs="http://www.ctyme.com/intr/rb-8581.htm">INT E0/CL=B3h</a>
<PRE>
<p>
Format of REAL/32 Memory Physical Parameter Block:
<a name=table4057></a>
Offset Size Description (Table 04057)
00h WORD 4K page number in first megabyte to be mapped
02h WORD number of page to map into above page, or 0000h to unmap
04h WORD window number (0000h, as only one window currently supported)
06h WORD reserved
</PRE>
<p><b>Note:</b>
All users of the system share the window, so applications should not
use it for arguments to system calls, attempt to read/write to/from
files via the window, etc.
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