From: Gabriel Paubert <paubert@iram.es>
To: Segher Boessenkool <segher@kernel.crashing.org>
Cc: linuxppc-dev@ozlabs.org, Paul Mackerras <paulus@samba.org>,
segher@gate.crashing.org, arnd@arndb.de
Subject: Re: [PATCH] powerpc: emulate power5 popcntb instruction
Date: Fri, 25 Aug 2006 11:59:46 +0200 [thread overview]
Message-ID: <20060825095946.GA8576@iram.es> (raw)
In-Reply-To: <9FF8F72E-5990-4AED-A826-9E1C9C889DB6@kernel.crashing.org>
On Thu, Aug 24, 2006 at 05:53:56PM +0200, Segher Boessenkool wrote:
> > Also it would be really nice if you could figure out a way to
> > avoid doing the unnecessary 64-bit logical operations on 32-bit
> > machines
>
> Like I asked before -- should we run this emulation on 32-bit
> machines at all? The instruction only exists in the 64-bit
> architecture after all.
It's useless for now, but I would not be surprised if someone
creates a new 32 bit processor which includes this instruction.
Gabriel
next prev parent reply other threads:[~2006-08-25 9:59 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-08-17 18:53 [PATCH] powerpc: emulate power5 popcntb instruction Will Schmidt
2006-08-17 19:24 ` Segher Boessenkool
2006-08-18 18:11 ` Will Schmidt
2006-08-18 19:05 ` Arnd Bergmann
2006-08-18 19:30 ` Kumar Gala
2006-08-19 19:10 ` segher
2006-08-19 20:19 ` Arnd Bergmann
2006-08-19 23:32 ` segher
2006-08-21 20:09 ` Will Schmidt
2006-08-24 6:36 ` Paul Mackerras
2006-08-24 15:53 ` Segher Boessenkool
2006-08-25 9:59 ` Gabriel Paubert [this message]
2006-08-25 12:57 ` Paul Mackerras
2006-08-28 18:03 ` Willschm
2006-08-29 6:43 ` Segher Boessenkool
2006-08-30 18:11 ` Will Schmidt
2006-08-18 19:42 ` Kumar Gala
2006-08-19 19:09 ` segher
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