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Date:      Mon, 07 Jan 2002 13:31:31 -0800
From:      Terry Lambert <tlambert2@mindspring.com>
To:        Bernd Walter <ticso@cicely8.cicely.de>
Cc:        Jake Burkholder <jake@locore.ca>, Alfred Perlstein <bright@mu.org>, Dan Eischen <eischen@vigrid.com>, arch@FreeBSD.ORG
Subject:   Re: Request for review: getcontext, setcontext, etc
Message-ID:  <3C3A13B3.112E8A0B@mindspring.com>
References:  <3C37E559.B011DF29@vigrid.com> <20020106032709.A82406@elvis.mu.org> <3C381B48.AADDCA2B@mindspring.com> <20020106113847.A15885@cicely8.cicely.de> <20020107015228.E39321@locore.ca> <3C396554.9B6A9053@mindspring.com> <20020107152434.B19289@cicely8.cicely.de>

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Bernd Walter wrote:
> On Mon, Jan 07, 2002 at 01:07:32AM -0800, Terry Lambert wrote:
> > The "flushw" is not enough.
> >
> > The following paper discusses the original implementation of the
> > "liblwp" code on SunOS 4.x:
> >
> > http://www.cs.washington.edu/research/compiler/papers.d/thread-regwin.html
> 
> It's uses a flushw emulation, because it had to deal with CPUs which
> don't have a flushw instruction.
> Well in fact it's wrong from the 1991 standpoint to name this
> emulation, because I asume sparcv9 wasn't there, but the result is
> the same.

I guess you are saying FreeBSD will never support non-64-bit
SPARC, or SPARC below SPARC 9.  If that's the plan, then that's
OK (though I will probably still hack up a version for my IPC,
particularly now that you have SPARC booting multiuser).


-- Terry

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