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From: jlt@styx.UUCP (John L. Thomas)
Newsgroups: net.micro
Subject: Re: Re: DOS EXEC FUNCTION CALL
Message-ID: <11416@styx.UUCP>
Date: Fri, 6-Sep-85 13:18:39 EDT
Article-I.D.: styx.11416
Posted: Fri Sep  6 13:18:39 1985
Date-Received: Tue, 10-Sep-85 08:24:31 EDT
References: <1267@brl-tgr.ARPA>
Organization: Lawrence Livermore Laboratory, Livermore, CA
Lines: 21

> when you return back to TURBO all your stack and data is garbage. The
> solution is to push all your necessary registers and then save the SS
> and SP in a location in your code segment.

Just to clear up a ?minor? point of confusion:
How could the return from interrupt have happened if the SS:SP is garbage?
In fact, the restoration of CS:IP comes from the return, which requires
that SS:SP be correct.

John
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