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Mail Archives: djgpp/2009/09/02/11:15:04

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From: dirw <dirwdirw DOT tw AT yahoo DOT com DOT tw>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: How to access 0xFF800000 data ?
Date: Wed, 2 Sep 2009 08:07:09 -0700 (PDT)
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To: djgpp AT delorie DOT com
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Reply-To: djgpp AT delorie DOT com

Dear Sir,

Thanks for your reply.
I try to access linear address 0xFF800000 (under big real mode).
I already use _farpeekb (_dos_ds, 0xFFFC0) [real mode => segment :
offset => F000:FFC0] to get data successfully!!
But I still do NOT know how to access all of 4G memory data.
Should I use DPMI function to read/write 0xFF800000 data ?
If yes, could you please show me more information?
Becasue I already study the DPMI specification, but I still do NOT
know which function can meet my request.

Thanks for your great help.

BR,
dirw

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