cvs.gedasymbols.org/archives/browse.cgi | search |
X-Authentication-Warning: | delorie.com: mail set sender to djgpp-bounces using -f |
From: | RayeR <glaux AT centrum DOT cz> |
Newsgroups: | comp.os.msdos.djgpp |
Subject: | Re: How to access 0xFF800000 data ? |
Date: | Fri, 2 Oct 2009 15:09:10 -0700 (PDT) |
Organization: | http://groups.google.com |
Lines: | 6 |
Message-ID: | <75c9d2b1-6067-460a-98e6-ab578628ebbc@m11g2000yqf.googlegroups.com> |
References: | <850b568b-640c-435e-b6ca-deb8953ef1d5 AT y10g2000prf DOT googlegroups DOT com> |
<cvWdnfdIDYbh1wLXnZ2dnUVZ_sadnZ2d AT earthlink DOT com> <1f6bf27d-a58c-4242-8411-acc03958afc2 AT x25g2000prf DOT googlegroups DOT com> | |
<5b184576-9f64-46a0-a183-97d812ce9a6d AT w36g2000yqm DOT googlegroups DOT com> | |
NNTP-Posting-Host: | 94.113.157.229 |
Mime-Version: | 1.0 |
X-Trace: | posting.google.com 1254521350 28387 127.0.0.1 (2 Oct 2009 22:09:10 GMT) |
X-Complaints-To: | groups-abuse AT google DOT com |
NNTP-Posting-Date: | Fri, 2 Oct 2009 22:09:10 +0000 (UTC) |
Complaints-To: | groups-abuse AT google DOT com |
Injection-Info: | m11g2000yqf.googlegroups.com; posting-host=94.113.157.229; |
posting-account=Q0wMHAoAAADjYrghh94FTf6YnbpTqZgp | |
User-Agent: | G2/1.0 |
X-HTTP-UserAgent: | Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.23) |
Gecko/20090825 SeaMonkey/1.1.18,gzip(gfe),gzip(gfe) | |
To: | djgpp AT delorie DOT com |
DJ-Gateway: | from newsgroup comp.os.msdos.djgpp |
Reply-To: | djgpp AT delorie DOT com |
Simply, WinXP (and all NT-based) don't allow accessing entire physical memory for DOS applications. It's memory protection policy which became more restrictive since ages of Win9x. The same for win32 apps in user mode. You will need to write some kernel mode driver that will access physicam memory and transfer data from/to your program.
webmaster | delorie software privacy |
Copyright © 2019 by DJ Delorie | Updated Jul 2019 |