From: "Blue Swirl" <blauwirbel@gmail.com>
To: qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] SPARC sdiv patch
Date: Mon, 25 Aug 2008 22:45:20 +0300 [thread overview]
Message-ID: <f43fc5580808251245h7eaadca1nb816c0802c82b56e@mail.gmail.com> (raw)
In-Reply-To: <20080825150914.G45325@stanley.csl.cornell.edu>
On 8/25/08, Vince Weaver <vince@csl.cornell.edu> wrote:
> Hello
>
> the SPARC v9 manual specifies the sdiv instruction as computing
> Y concated with the *lower 32 bits* of r[rs1] / lower 32 bits of r[rs2]
>
> The current code does not ensure that only the lowest 32 bits of rs1 are
> used. The following patch fixes this.
>
> This fix allows the "gcc" SPEC 2000 benchmark complete successfully.
>
> The "udiv" helper might also need this fix.
Thanks, applied.
prev parent reply other threads:[~2008-08-25 19:45 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-08-25 19:12 [Qemu-devel] SPARC sdiv patch Vince Weaver
2008-08-25 19:45 ` Blue Swirl [this message]
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