Mail Archives: djgpp/1995/08/29/09:16:05
Date: Tue, 29 Aug 1995 01:30:02 -0700
From: Sam Vincent <svincent AT zippy DOT sonoma DOT edu>
To: bsg AT basistech DOT com, djgpp AT sun DOT soe DOT clarkson DOT edu
Subject: Re: MAPPED DPMI VIDEO MEMORY
I don't quite think you understand...
Indeed. I have cancelled my post.
All he wants to do is be able to use a continuous address space for accessing
the display memory (which is at offset 0xa0000 within conventional memory
selector space) rather than having to bank himself.. etc.. (i.e.
simulate djgpp v.1.x's 0xd0000000, but from within dpmi...)
That I understand...
We are programming windows apps here.. just Dos..
and yes, those little dos sessions under windows *will* run your code
in 32-bit protected mode when you use dpmi calls to get to protected mode..
If you do that, you are in charge of managing your 32-bit selectors
and segment register, and may do so any damned way you want, including
>64K selectors to real memory as many and what kind you want....
Thanks for clarifying what he was saying...
Bernie
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