From:	Jedediah Smith <jedediah AT interlog DOT com>
Newsgroups:	comp.os.msdos.djgpp
Subject:	How to use 32 bit regs in 16 bit C prog?
Date:	Tue, 14 Jul 1998 23:00:20 -0700
Organization:	Interlog Internet Services
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Message-ID:	<35AC4574.2A32@interlog.com>
NNTP-Posting-Host:	209-20-9-190.dialin.interlog.com
NNTP-Posting-Time:	15 Jul 1998 03:02:34 GMT
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To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

I need to optimize a little inner loop in a 16 bit C prog and I want to
use the 32 bit general purpose registers (EAX,EBX,ECX,EDX). I don't need
to do any flat memory addressing or anything like that, just use those 4
regs to temporarily store data and do arithmetic. I can stick the
machine code into the C source using the _emit_ macro but I want to know
what I have to do to the CPU state before I can use the registers.


Please send e-mail

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      .....
        :edediah
      :.:

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