Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!uwm.edu!zaphod.mps.ohio-state.edu!rpi!uupsi!grebyn!ckp
From: ckp@grebyn.com (Checkpoint Technologies)
Newsgroups: comp.sys.m68k
Subject: Re: cast (char *) to (int *) ?
Keywords: 68000 C
Message-ID: <21062@grebyn.com>
Date: 8 Aug 90 17:49:10 GMT
References: <1990Aug7.183302.26585@cbnewsl.att.com>
Reply-To: ckp@grebyn.UUCP (Checkpoint Technologies)
Organization: Grebyn Timesharing, Vienna, VA, USA
Lines: 16

In article <1990Aug7.183302.26585@cbnewsl.att.com> rl@cbnewsl.att.com (roger.h.levy) writes:
>casted character pointers to integer pointers in some situations and
>then dereferenced the pointer.  Although this works OK with a 68008,
>it will result in a bus error on our 68000 target if the address of
>the data is odd.

I could swear that the 68008 also enforced even alignment of word and
long data objects; at least that's what my 68000/68008/68010 manual
says.  (I don't have it handy, or I'd look it up.)  If that's truly the
case then you can go ahead and run the same code; if it was wrong then
it would have caused address-error exceptions on the 68008 too.
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