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[Xen-devel] [PATCH] [x86_emulate] (Almost) complete FPU emulation.
| To: | xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>, "Keir Fraser" <keir.fraser@xxxxxxxxxxxxx> |
|---|---|
| Subject: | [Xen-devel] [PATCH] [x86_emulate] (Almost) complete FPU emulation. |
| From: | "Trolle Selander" <trolle.selander@xxxxxxxxx> |
| Date: | Tue, 1 Jul 2008 12:39:56 +0100 |
| Cc: | |
| Delivery-date: | Tue, 01 Jul 2008 04:40:23 -0700 |
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This patch provides emulation for all FPU instructions except fsave/frstore & fnstenv/fldenv. While the main purpose of the patch is to avoid current and future "gotchas" on FPU intructions used by various OS boot-loaders, it is complete enough to run DOS realmode FPU applications and benchmarks, but don't expect to set any speed records. Signed-off-by: Trolle Selander <trolle.selander@xxxxxxxxxxxxx>
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