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Mail Archives: djgpp/1995/05/02/19:37:39

From: Lars Damerow <bb07779 AT bingsuns DOT cc DOT binghamton DOT edu>
Subject: Re: DJGPP
To: djgpp AT sun DOT soe DOT clarkson DOT edu
Date: Tue, 2 May 1995 18:13:57 -0400 (EDT)

From djgpp-bounces AT sun DOT soe DOT clarkson DOT edu Tue May  2 17:06 EDT 1995
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From: Charles Sandmann <sandmann AT praline DOT no DOT NeoSoft DOT com>
Message-Id: <199505021915 DOT OAA20024 AT praline DOT no DOT NeoSoft DOT com>
Subject: Re: DJGPP
To: b8003054 AT nas05 DOT kpi DOT edu DOT tw
Date: Tue, 2 May 1995 14:15:05 -0500 (CDT)
Cc: KM5M AT c53000 DOT petrobras DOT anrj DOT br, djgpp AT sun DOT soe DOT clarkson DOT edu
In-Reply-To: <9505020841 DOT AA11452 AT nas05 DOT kpi DOT edu DOT tw> from "b8003054 AT nas05 DOT kpi DOT edu DOT tw" at May 2, 95 04:41:45 pm
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>> The address of video RAM is re-mapped to the address 0xe0000000. If 
>you want > to access the video RAM, you can use the pointer 0xe00b8000.
>
>Don't do this, use dosmem*() routines or <sys/farptr.h>
>
>This method does not work under Dpmi hosts (like qdpmi, windows, os/2, etc)
>and won't work at all in a few months when V2 is released.
>
>Just say NO to 0xe0000000 addressing!

Does that mean that direct video graphics will not be allowed?  If it is 
not possible to use a pointer directed to video RAM to put pixels on the 
screen, can we set up a segment that gives us that kind of access without 
causing a segmentation fault?  My entire optimized graphics library is at 
stake if we can't!  :(

					...Lars Damerow
					bb07779 AT bingsuns DOT cc DOT binghamton DOT edu
					(try saying THAT ten times fast!)

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