Path: utzoo!dciem!array!colin
From: colin@array.UUCP (Colin Plumb)
Newsgroups: comp.arch
Subject: Re: Is handling off-alignment important?
Message-ID: <488@array.UUCP>
Date: 12 Aug 90 05:00:29 GMT
References: <40711@mips.mips.COM> <12436@encore.Encore.COM> <467@hitachi.uucp>
Organization: Array Systems Computing, Inc., Toronto, Ontario, CANADA
Lines: 17

>>mash@mips.COM (John Mashey) writes:
>>> Can anyone give some live examples where software takes advantage of the
>>> mode where the CPU just zeroes the low-order bits and conitnues...

>jkenton@pinocchio.encore.com (Jeff Kenton) writes:
>> The only case I've seen is a low level, PROM based, debugger on the 88k
>> which runs in this mode.

In article <467@hitachi.uucp> jon@hitachi.UUCP (Jon Ryshpan) writes:
> I can't imagine a *worse* place to turn off a trap detecting possible
> errors than in a debugger.

I think we can assume that it restores the state while running the debugged
code; it just turns off the trap for internal use.  I don't think detecting
errors in the PROM monitor does you much good, anyway, so why worry? :-}
-- 
	-Colin