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From: ljz@fxgrp.UUCP (Lloyd Zusman)
Newsgroups: comp.sys.ibm.pc,comp.lang.c
Subject: Re: Looking for C functions to access PC memory
Message-ID: <156@fxgrp.UUCP>
Date: Tue, 10-Nov-87 21:17:21 EST
Article-I.D.: fxgrp.156
Posted: Tue Nov 10 21:17:21 1987
Date-Received: Fri, 13-Nov-87 04:07:23 EST
References: <24261F3U@PSUVMB> <6662@brl-smoke.ARPA>
Reply-To: ljz@fxgrp.UUCP (Lloyd Zusman)
Followup-To: <6662@brl-smoke.ARPA> gwyn@brl.arpa (Doug Gwyn (VLD/VMB) <gwyn>)
Organization: Master Byte Software
Lines: 17
Xref: mnetor comp.sys.ibm.pc:9992 comp.lang.c:5358

In article <6662@brl-smoke.ARPA> gwyn@brl.arpa (Doug Gwyn (VLD/VMB) <gwyn>) writes:

>#define	PEEK(loc)	(*(char *)(loc))
>#define	POKE(loc,value)	*(char *)(loc) = (value)

This would only work if you are using a large data model and the 'loc'
variable is of the type long (or some other 32-bit thing).  If you're
using Microsoft C version 4.0 (which I believe you are if I don't have
you mixed up with another contributor here), use the movedata() function,
which I described in a recent posting.  It'll work in all memory
models.


-- 
Lloyd Zusman, Master Byte Software, Los Gatos, California
"We take things well in hand."
...!ames!fxgrp!ljz