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From: davet@oakhill.UUCP (Dave Trissel)
Newsgroups: net.micro.68k
Subject: Re: bus error, but why?
Message-ID: <300@oakhill.UUCP>
Date: Sat, 26-Jan-85 19:04:08 EST
Article-I.D.: oakhill.300
Posted: Sat Jan 26 19:04:08 1985
Date-Received: Tue, 29-Jan-85 06:44:43 EST
References: <363@nbs-amrf.UUCP> <iuvax.3500006>
Reply-To: davet@oakhill.UUCP (Dave Trissel)
Organization: Motorola Inc. Austin, Tx
Lines: 14
Summary: 

In article <3500006@iuvax.UUCP> jec@iuvax.UUCP writes:
>
>The problem probably is that you are using an assembler for the 68000
>and not the 68010.  Long words need to be long word aligned when using
>the 68010 whereas they need only be word aligned on the 68000.
>
>
Operand alignment is the exact same for the MC68000, the MC68008 (the 8 bit
bus version) and the MC68010.  Word and longword operands must reside on
a word boundary.  There never has been a longword boundary restriction.  The
new 32-bit MC68020 has no data operand boundary restrictions at all.

Motorola Semiconductor Inc.                   Dave Trissel
Austin, Texas             {gatech,ctvax,seismo,ihnp4}!ut-sally!oakhill!davet