Re: [Qemu-devel] [PATCH] target-i386: Fix mulx for identical target regs

2015-11-17 Thread Eduardo Habkost
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. are identical, > the final result should be the high

[Qemu-devel] [PATCH] target-i386: Fix mulx for identical target regs

2015-11-17 Thread Richard Henderson
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. are identical, the final result should be the high part of the result. At present, TCG may either produce incorrect results o