Re: software "exceptions"

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#707

From: Frank J. Edwards
Date: Wed, 02 Aug 1989 18:17

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>"Frank J. Edwards" <crash@ckctpa.uucp> writes in message <143@ckctpa.UUCP>
>> I've been trying to use the Amiga's signalling system to cause an
>> "exception" (thats CBM's term, not Motorola's).
>
> Actually, CBM's term is Software Interrupt last time I checked.
>
> Valentin

No, a software interrupt *IS* a software interrupt
	(flag bit in the MsgPort structure is PA_SOFTINT);
an exception is analagous to the Un*x signals
	(flag bit is PA_SIGNAL plus tc_SigExcept bit must be set);
and a trap *IS* a trap
	(no MsgPort equivalent).

Concerning CBMs terminology, I guess "2 out of 3 ain't bad!!"  :-)
--
#include <std/disclaimer.h>	/* My employer isn't even involved! */

Frank J. Edwards		ComputerKnowledge Corporation
2677 Arjay Court		12740 Hillcrest Rd, Suite 212
Palm Harbor, FL  34684-4505	Dallas, TX  75230      (800) 385-9700

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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!ames!apple!usc!cs.utexas.edu!uunet!pdn!boake2!ckctpa
From: crash@ckctpa.UUCP (Frank J. Edwards)
Newsgroups: comp.sys.amiga.tech
Subject: Re: software "exceptions"
Message-ID: <147@ckctpa.UUCP>
Date: 2 Aug 89 18:17:47 GMT
Organization: ComputerKnowledge Corp, Clearwater FL
Lines: 22