Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ucbvax!ucsd!rutgers!bellcore!texbell!sugar!karl
From: karl@sugar.hackercorp.com (Karl Lehenbauer)
Newsgroups: comp.sys.amiga.tech
Subject: Re: Official Warnings...
Message-ID: <3773@sugar.hackercorp.com>
Date: 30 Apr 89 14:49:07 GMT
References: <3082@haven.umd.edu> <11394@well.UUCP>
Organization: Sugar Land Unix - Houston
Lines: 12

In article <11394@well.UUCP>, ewhac@well.UUCP (Leo 'Bols Ewhac' Schwab) writes:
> 	TAS uses an indivisible memory cycle to do its work.  It's supposed
> to be used in multi-processor systems, where many CPU's share the same
> memory.  

Isn't TAS useful on a single CPU system, though, for providing fast,
uninterruptable test and set for use as a semaphore, without having 
to turn off interrupts?

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