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Re: [Qemu-devel] [PATCH] target-i386: Fix mulx for identical target regs
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From: |
Eduardo Habkost |
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Subject: |
Re: [Qemu-devel] [PATCH] target-i386: Fix mulx for identical target regs |
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Date: |
Tue, 17 Nov 2015 12:39:23 -0200 |
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User-agent: |
Mutt/1.5.23 (2014-03-12) |
On Tue, Nov 17, 2015 at 12:41:47PM +0100, Richard Henderson wrote:
> The Intel specification clearly indicates that the low part
> of the result is written first and the high part of the result
> is written second; thus if ModRM:reg and VEX.vvvv are identical,
> the final result should be the high part of the result.
>
> At present, TCG may either produce incorrect results or crash
> with --enable-checking.
>
> Reported-by: Toni Nedialkov <address@hidden>
> Reported-by: Max Reitz <address@hidden>
> Signed-off-by: Richard Henderson <address@hidden>
Applied to x86 tree. Thanks!
--
Eduardo