Xref:	news2.mv.net comp.os.msdos.djgpp:6179
Newsgroups:	comp.os.msdos.djgpp
From:	Nick Collier <ntcollie AT midway DOT uchicago DOT edu>
Subject:	ASM write to system memory?
Message-ID:	<31F02C72.3216@midway.uchicago.edu>
Sender:	news AT midway DOT uchicago DOT edu (News Administrator)
Organization:	University of Chicago -- Academic Computing Services
Mime-Version:	1.0
Date:	Sat, 20 Jul 1996 00:46:42 GMT
Lines:	11
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

Hey all,

How do I write to system memory using asm? More specifically,
what do I set ES to? The way I understand it so far is that in C I can malloc
some chunk then call _my_ds(), and then use what _my_ds() returns as the
value for ES. Assuming ES:DI - DI would then refer to the malloced memory.
Is this correct? I have nice asm polygon drawing routing (based on M. Abrash's)
which draws to the screen, but want to convert it to write to system memory as well.

Thanks,
Nick

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