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Newsgroups: comp.lang.c
Subject: Re: ACCESS REGISTERS FROM TURBO C??
Summary: Yes, it's possible.
Keywords: Turbo C, Assembly, Registers
Message-ID: <1990Nov15.022826.9723@mdivax1.uucp>
Date: 15 Nov 90 02:28:26 GMT
References: <11475@j.cc.purdue.edu>
Reply-To: mdivax1!mclaren (Gavin McLaren)
Organization: Mobile Data International, Richmond, B.C., Canada
Lines: 24
Return-Path: <mdivax1!news>
Apparently-To: van-bc!rnews

In article <11475@j.cc.purdue.edu> zhou@brazil.psych.purdue.edu (Albert Zhou) writes:
>This question might be silly to some of you. How can I directly access
>registers from Turbo C?

Yes, there are two ways.

The first is to program in assembly language.  Look up the appropriate
#--- preprocessor command to do this.  Turbo C won't be able to compile this
from the integrated environment - use TCC.

The simpler way is to use the Turbo C predefined variables for every register.
Off the top of my head, they go something like:

_AH
_BL
_DS

etc.  Just use them like you would any other variable.  Of cource, code
written this way is unlikely to be portable, but you knew that, didn't you :)

You may have to include some special include file.  My best advice is RTFM.

--Gavin McLaren
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