www.delorie.com/archives/browse.cgi   search  
Mail Archives: djgpp/1996/02/21/02:48:50

Xref: news2.mv.net comp.os.msdos.djgpp:1278
From: bwalters AT ramlink DOT net (Brian Walters)
Newsgroups: comp.os.msdos.djgpp
Subject: gs segment selector points to conventional memory area
Date: 21 Feb 1996 06:17:50 GMT
Organization: RAMLink Internet Access Service
Lines: 12
Message-ID: <4gedee$dmc@ram2.ramlink.net>
NNTP-Posting-Host: hun1.ramlink.net
Mime-Version: 1.0
To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp

  In assembly, I noticed that the segment selector, gs, points to
the conventional memory area. It is normally pointed to by
_go32_conventional_mem_selector(). I have successfully accessed video
memory area at 0xA0000 using the segment selector in gs.
  My question is: Is it safe to use gs as the conventional memory
selector? At what conditions will gs change? Someone posted a question
similar to this a while ago, and I have not seen any answer yet. Any
insights will be appreciated.

  Brian Walters

- Raw text -


  webmaster     delorie software   privacy  
  Copyright © 2019   by DJ Delorie     Updated Jul 2019