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<TITLE>Int 15/AX=E801h
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Int 15/AX=E801h - Phoenix BIOS v4.0 - GET MEMORY SIZE FOR >64M CONFIGURATIONS -
AX = E801h
Return: CF clear if successful
AX = extended memory between 1M and 16M, in K (max 3C00h = 15MB)
BX = extended memory above 16M, in 64K blocks
CX = configured memory 1M to 16M, in K
DX = configured memory above 16M, in 64K blocks
CF set on error
Notes: supported by the A03 level (6/14/94) and later XPS P90 BIOSes, as well
as the Compaq Contura, 3/8/93 DESKPRO/i, and 7/26/93 LTE Lite 386 ROM
BIOS
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<h2>Int 15/AX=E801h
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<h3><font color=#C00040>Phoenix BIOS v4.0 - GET MEMORY SIZE FOR >64M CONFIGURATIONS</font></h3>
<PRE>
AX = E801h<br>
<p><b>Return:</b><br>CF clear if successful
AX = extended memory between 1M and 16M, in K (max 3C00h = 15MB)
BX = extended memory above 16M, in 64K blocks
CX = configured memory 1M to 16M, in K
DX = configured memory above 16M, in 64K blocks
CF set on error
</PRE>
<p><b>Notes:</b>
Supported by the A03 level (6/14/94) and later XPS P90 BIOSes, as well
as the Compaq Contura, 3/8/93 DESKPRO/i, and 7/26/93 LTE Lite 386 ROM
BIOS.
Supported by AMI BIOSes dated 8/23/94 or later.
On some systems, the BIOS returns AX=BX=0000h; in this case, use CX
and DX instead of AX and BX.
This interface is used by Windows NT 3.1, OS/2 v2.11/2.20, and is
used as a fall-back by newer versions if AX=E820h is not supported.
This function is not used by MS-DOS 6.0 HIMEM.SYS when an EISA machine
(for example with parameter /EISA) (see also MEM F000h:FFD9h), or no
Compaq machine was detected, or parameter /NOABOVE16 was given.
<p><b>See Also:</b>
<a href="rb-1535.htm" tppabs="http://www.ctyme.com/intr/rb-1535.htm">AH=8Ah"Phoenix"</a> - <a href="rb-1740.htm" tppabs="http://www.ctyme.com/intr/rb-1740.htm">AX=E802h</a> - <a href="rb-1741.htm" tppabs="http://www.ctyme.com/intr/rb-1741.htm">AX=E820h</a> - <a href="rb-1742.htm" tppabs="http://www.ctyme.com/intr/rb-1742.htm">AX=E881
<p>
<b>Category: <a href="cat-044.htm" tppabs="http://www.ctyme.com/intr/cat-044.htm">
Vendor-specific BIOS Extensions</a>
- <a href="int-15.htm" tppabs="http://www.ctyme.com/intr/int-15.htm">
Int 15h</a>
- <a href="alpha-p.htm" tppabs="http://www.ctyme.com/intr/alpha-p.htm">
P</a>
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