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From: bobc@tikal.UUCP (Bob Campbell)
Newsgroups: net.micro.mac
Subject: Re: Coroutines needed for Macintosh!
Message-ID: <252@tikal.UUCP>
Date: Sun, 6-Oct-85 13:25:17 EDT
Article-I.D.: tikal.252
Posted: Sun Oct  6 13:25:17 1985
Date-Received: Mon, 7-Oct-85 03:28:22 EDT
References: <96900012@uiucuxc> <265@tekchips.UUCP>
Reply-To: bobc@tikal.UUCP (Bob Campbell)
Organization: Teltone Corp., Kirkland, WA
Lines: 19
Organizatio: Teltone Corp., Kirkland, WA

In article <265@tekchips.UUCP> abdali@tekchips.UUCP (Kamal Abdali) writes:
>Provo, Utah.  Although I haven't yet tried the public domain 
>ETHZ Modula-2 on a program containing coroutines, I take it for 
>granted that that compiler also supports coroutines.

You shouldn't, as it does not support coroutines (it is a feature which
can be added by rewritting the SYSTEMX module),  I tried it and discovered
that it produces indirect calls to HALT.

This does not mean that coroutines can not be supported, but it appears that
they were removed from the mac implementation as the Generic 68K compiler
used the user mode stack pointer (as apposed to the supperviser), and the
mac stack sniffer has to be turned off.

Bob Campbell
{fluke,uw-beaver}!tikal!bobc
Teltone Corp.
PO Box 657, 10801 -120th Avenue NE
Kirkland, Washington.