Path: utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!usc!apple!snorkelwacker!think!samsung!cg-atla!fredex
From: fredex@cg-atla.UUCP (Fred Smith)
Newsgroups: comp.sys.ibm.pc
Subject: Re: Dos Func. 4B emulation
Message-ID: <8283@cg-atla.UUCP>
Date: 22 Jan 90 18:29:42 GMT
References: <844@ocsmd.ocs.com>
Reply-To: fredex@cg-atla.UUCP (Fred Smith)
Organization: Agfa Compugraphic Division
Lines: 17

In article <844@ocsmd.ocs.com> motti@ocsmd.ocs.com (Motti Bazar) writes:
>I'm developing a DOS shell that plays with Interrupt 21H.
>One function (4B - Exec) is a tough one to emulate. Is there
>anybody that knows about any public domain code to emulete this
>function ??? If there is interest, I'll post the answer.
>Thanks in advance ... Motti.



I don't understand--Int 21 function 0x4B is a function of DOS, not
the shell ( command.com) `As long as you have DOS you don't need
to "emulate" function 4B.

Function 4B is also kinda hard to use, since in many versions of DOS
it trashes (almost) all the registers, including the stack pointer!

Fred