From:	Benny <benny AT euronet DOT beNOSPAM>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: Accessing PCI memory
Date:	15 Jul 1997 02:06:25 GMT
Organization:	EuroNet Internet
Lines:	25
Message-ID:	<33CADBB5.B8188C78@euronet.beNOSPAM>
References:	<33CA3306 DOT 2F2E AT signal DOT dra DOT hmg DOT gb>
NNTP-Posting-Host:	dialwa016.ib.be
Mime-Version:	1.0
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

Gordon Brown wrote:
> 
> If I have a PCI board located in the PC memory space at 0x3d000000 how
> do I access this memory using DJGPP.

Maybe this way (it works for my PCI graphics card,
don't know if it is ok though):

#include <dpmi.h>
main()
{
    char *virtualscreen = malloc(1024*1024); // 1mb

    __djgpp_map_physical_memory(virtualscreen, 1024*1024, 0x3d000000);

    SetMode(0x13);
    memset(virtualscreen, 1, 320*200); // clear screen blue

    getch();
    SetMode(3);
}

'hope that helps...

-- Benny.

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