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From: cprice@mips.COM (Charlie Price)
Newsgroups: comp.arch
Subject: Re: Is handling off-alignment important?
Message-ID: <40696@mips.mips.COM>
Date: 8 Aug 90 20:13:22 GMT
References: <104037@convex.convex.com> <8840014@hpfcso.HP.COM> <2357@crdos1.crd.ge.COM> <25900@mimsy.umd.edu> <2392@crdos1.crd.ge.COM> <MCGRATH.90Aug7220232@homer.Berkeley.EDU>
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Reply-To: cprice@mips.COM (Charlie Price)
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In article <MCGRATH.90Aug7220232@homer.Berkeley.EDU> mcgrath@homer.Berkeley.EDU (Roland McGrath) writes:
>On machines that "don't handle misaligned accesses", what do they do when one
>happens anyway?

MIPS processors generate a trap with an Address Error Exception.

In RISC/os, this is turned into a SIGBUS signal.
-- 
Charlie Price    cprice@mips.mips.com        (408) 720-1700
MIPS Computer Systems / 928 Arques Ave. / Sunnyvale, CA   94086