Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!tut.cis.ohio-state.edu!pt.cs.cmu.edu!b.gp.cs.cmu.edu!Ralf.Brown@B.GP.CS.CMU.EDU
From: Ralf.Brown@B.GP.CS.CMU.EDU
Newsgroups: comp.sys.ibm.pc
Subject: Re: Micro-Emacs & PC Lan 1.30 Conflict?
Message-ID: <25655209@ralf>
Date: 18 Nov 89 11:58:49 GMT
Sender: ralf@b.gp.cs.cmu.edu
Organization: Carnegie Mellon University School of Computer Science
Lines: 17
In-Reply-To: <10405@j.cc.purdue.edu>

In article <10405@j.cc.purdue.edu>, nwd@j.cc.purdue.edu (Daniel Lawrence) wrote:
 >        Also some networks, NETWARE v2.0 and below, mis implimented the
 >DOS $4B EXEC call... it ended up trashing the STACK, thus emacs hung
 >whenever it went to execute things.  I fixed this in 3.10 with a special
 >define and some assembly code to save/restore the stack around the call.

DOS 2.x *itself* mis-implemented the EXEC call, trashing the stack pointer
along with all the other registers except CS:IP.  This is documented.

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