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Mail Archives: djgpp/2000/08/10/09:16:58

From: Damian Yerrick <Bullcr_pd_yerrick AT hotmail DOT comRemoveBullcr_p>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: memset etc.
Organization: Pin Eight Software http://pineight.8m.com/
Message-ID: <qca5ps0uh5kejqujdf905e1p9asjuhqg7j@4ax.com>
References: <8mu28b$202$1 AT nslave1 DOT tin DOT it>
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NNTP-Posting-Date: Thu, 10 Aug 2000 13:12:58 GMT
Distribution: world
Date: Thu, 10 Aug 2000 13:12:58 GMT
To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp
Reply-To: djgpp AT delorie DOT com

On Thu, 10 Aug 2000 13:12:55 +0200, "ClaudioF" <mpolve AT tin DOT it> wrote:

>Sorry I'm newbie. I've a little problem with a code I've ported from Watcom:
>"General Protection Fault at eip=00002e95 etc. etc."
[snip]
>  ScreenPointer = (unsigned char *) 0x0a0000;

DJGPP uses a different way of accessing screen memory, through
_farpokeb() (and friends) into DOS_DS.  They optimize into two
instructions (load FS and write).

C:\>info libc a _far

-- 
Damian Yerrick
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