cvs.gedasymbols.org/archives/browse.cgi   search  
Mail Archives: djgpp/1999/06/02/03:23:40

Date: Wed, 2 Jun 1999 10:01:21 +0300 (IDT)
From: Eli Zaretskii <eliz AT is DOT elta DOT co DOT il>
X-Sender: eliz AT is
To: Davin McCall <DavMac AT iname DOT com>
cc: djgpp AT delorie DOT com
Subject: Re: DJGPP - real mode procedures.
In-Reply-To: <3753714e.1113378@newsserver.cc.monash.edu.au>
Message-ID: <Pine.SUN.3.91.990602095750.29915G-100000@is>
MIME-Version: 1.0
Reply-To: djgpp AT delorie DOT com
X-Mailing-List: djgpp AT delorie DOT com
X-Unsubscribes-To: listserv AT delorie DOT com

On Tue, 1 Jun 1999, Davin McCall wrote:

> >iret
> 
> This will pop half the return address.

Apart of the fact that the code needs to do a RETF instead of IRET, is 
there anything else behind the ``half the return address'' remark?  If 
so, could you please explain?

> >I then call the function
> >__dpmi_simulate_real_mode_procedure_retf_stack(&r, 4, &stack);
> 
> I suspect the 4 should be 1, or possibly 2. The DPMI spec is rather
> unclear.

But the library reference clearly says "bytes" (and the source works with 
"REP MOVSB").  So 1 is definitely incorrect, as the RM code pops a 16-bit 
word.

- Raw text -


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