delorie.com/archives/browse.cgi   search  
Mail Archives: djgpp/2002/12/20/14:11:57

Date: Fri, 20 Dec 2002 21:10:06 +0300
From: "Eli Zaretskii" <eliz AT is DOT elta DOT co DOT il>
Sender: halo1 AT zahav DOT net DOT il
To: djgpp AT delorie DOT com
Message-Id: <1659-Fri20Dec2002211005+0200-eliz@is.elta.co.il>
X-Mailer: emacs 21.3.50 (via feedmail 8 I) and Blat ver 1.8.9
In-reply-to: <8c83mFDGb3B@hans-juergen.taenzer.dialin.t-online.de>
Subject: Re: How to get the amount of free memory
References: <8c83mFDGb3B AT hans-juergen DOT taenzer DOT dialin DOT t-online DOT de>
Reply-To: djgpp AT delorie DOT com
Errors-To: nobody AT delorie DOT com
X-Mailing-List: djgpp AT delorie DOT com
X-Unsubscribes-To: listserv AT delorie DOT com

> From: Hans-Juergen DOT Taenzer AT t-online DOT de (Hans-Juergen Taenzer)
> Newsgroups: comp.os.msdos.djgpp
> Date: 19 Dec 2002 19:10:00 +0100
> 
> how do i get the amount of free real-memory (memory below 1 MB)
> from a running programm?

 #include <dpmi.h>
 #include <go32.h>
 __dpmi_regs regs;
 regs.h.ah = 0x48;
 regs.x.bx = 0xffff;
 __dpmi_int (0x21, &regs);
 printf ("Free DOS Memory: %u Bytes\n", regs.x.bx << 4);

Note that this only gives you the size of the largest free memory
block, and I think it doesn't include the memory between 640K and 1MB.

- Raw text -


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