Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sdd.hp.com!zaphod.mps.ohio-state.edu!unix.cis.pitt.edu!gvlf3.gvl.unisys.com!burdvax!dave
From: dave@PRC.Unisys.COM (David Lee Matuszek)
Newsgroups: comp.sys.mac.misc
Subject: Re: Bus error with ResEdit 2.1 OR Suitcase & MacroMaker on 6.0.7 ??
Message-ID: <16071@burdvax.PRC.Unisys.COM>
Date: 8 Jan 91 20:44:34 GMT
References: <636.2783DEF0@busker.fidonet.org>
Sender: news@PRC.Unisys.COM
Organization: Unisys Corporation, Paoli Research Center; Paoli, PA
Lines: 39

In article <636.2783DEF0@busker.fidonet.org> Michael.K..Yee@f20.n226.z1.FIDONET.ORG (Michael K. Yee) writes:
>Reply-To: yee@osf.org
>
>
>        I have had many Bus error bombs on my Mac LC running System 6.0.7.
>        When I use Suitcase II with MacroMaker and startup Mutifinder, every
>        thing is fine.  But, when I do the same, and start-up with Finder -
>        I get a Bus error.  I thought Finder was suppose to be more stable
>        than Multifinder.
>
>        The other time I get a Bus error is when I tried to edit a fkeys ID
>        in ResEdit 2.1.  I get a Bus error.  My question is - What is a Bus
>        error, and does anyone know what is going on here?  Is this a known
>        bug?

I have a new IIsi running System 6.0.7, and bus errors are VERY
common.  Some programs that ran fine on my old Mac Plus bomb this way
consistently.  Other programs bomb with a bus error on occasion;
however, I haven't spent enough time with ANY program on my new
machine to see whether I could consistently reproduce the error.
I hope someone will come out soon with a list of incompatible programs.

I believe the problem is the lack of a math coprocessor (the LC and
the IIsi are alike in this respect).  I don't have any external
peripherals (well, other than the obvious ones), so I don't know why
else I'd be using the bus.

I put in the PseudoFPU INIT, and that allows some programs to run.
For example, the Satori module for After Dark gave a bus error before,
but with PseudoFPU it now runs beautifully (if very slowly!).

BTW, I use Suitcase II always, MultiFinder about half the time, and a
number of other inits and cdevs.  I don't use MacroMaker or fkeys.


-- Dave Matuszek (dave@prc.unisys.com)
-- Unisys Corp. / Paoli Research Center / PO Box 517 / Paoli PA  19301
-- Any resemblance between my opinions and those of my employer is improbable.
< You can put a mouse on an IBM.  And you can put a radio on a motorcycle. >