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From: alexande@drivax.UUCP
Newsgroups: net.micro.atari16
Subject: Re: Catching ^C and "mushrooms"
Message-ID: <470@drivax.UUCP>
Date: Mon, 28-Apr-86 17:39:38 EDT
Article-I.D.: drivax.470
Posted: Mon Apr 28 17:39:38 1986
Date-Received: Thu, 1-May-86 04:14:47 EDT
References: <860409-150043-1731@Xerox> <3511@sun.uucp> <197@atari.UUcp>
Reply-To: alexande@drivax.UUCP (Mark G. Alexander)
Organization: Digital Research, Monterey, CA
Lines: 25
Keywords: TOS, MS-DOS
Summary: TOS is like MS-DOS

In article <197@atari.UUcp> dyer@atari.UUcp (Landon Dyer) writes:
>You CAN catch ^C (as well as any other terminate).  In the grand DRI
							          ^^^
>tradition, it is the usual monster kludge:
>	0x102 Terminate (^C) Handler
>	          Before a process is  actually  terminated,  GEMDOS
>	     calls  the  terminate  vector.  If the terminate vector
>	     points to an RTS (the default case), the  process  will
>	     be  terminated.  If the application does not wish to be
>	     terminated it should do a longjump (or its  equivalent)
>	     to an appropriate handler.

This is actually the grand Microsoft tradition.  MS-DOS has an almost
identical method for catching ^C, using INT 23H.  Jason ("Born to Code")
Loveman put it into GEMDOS (TOS) as part of his plan to be as similar to
MS-DOS as possible.  Read IBM's DOS Tech. Ref. if you want deja vu.
--
#include "disclaimer.h"
#include "quote.h"
-- Mark Alexander   {ihnp4,mot,ucscc,ucbvax!hplabs!amdahl} !drivax!alexande
-- 
--
#include "disclaimer.h"
#include "quote.h"
-- Mark Alexander   {ihnp4,mot,ucscc,ucbvax!hplabs!amdahl} !drivax!alexande