From: aho450s AT nic DOT smsu DOT edu (Tony O'Bryan)
Newsgroups: comp.os.msdos.djgpp
Subject: Re: HELP w/DECIPHIRING STACK DUMP
Date: Tue, 25 Feb 1997 23:41:52 GMT
Organization: Southwest Missouri State University
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Message-ID: <3313784d.1080964@ursa.smsu.edu>
References: <01bc2104$bb6fbfa0$6729cfa9 AT p590> <5etotn$4kq AT freenet-news DOT carleton DOT ca>
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To: djgpp AT delorie DOT com
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On 25 Feb 1997 04:13:43 GMT, ao950 AT FreeNet DOT Carleton DOT CA (Paul Derbyshire) wrote:

>Invalid opcode??!?
>
>How do you get a gpf like that? I would think it would require the
>compiler to f**k up to cause that. And shouldn't using a bad mnemonic in
>inline asm just cause a compile-time error?

The 80386 and beyond (I don't think the 80286 is included) have an invalid
opcode exception.  This is generally used to allow a program to emulate in
software an instruction not supported on the chip itself.