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List:       hpux-devtools
Subject:    Re: HPUX-DEVTOOLS: Atomic instructions
From:       "Paul Dembry" <pade () trifox ! com>
Date:       2001-03-23 16:34:53
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> I want to know if HP processor pa-risc2.0 offer you as atomic instructions
> more than "load and clear". I saw that sparc, mips have CAS-compare and
> swap or Load Linked/Jump conditional.
> Or if pa2.0 doesn't have these instructions there are ways to simulate
> them ?
I recall doing a cas-type operation by setting the code critical, doing the
cas equivalent instructions and then resetting the critical section.  This
was for ALLBASE back in 85 so perhaps there is a better way now.
Paul

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