microblaze: Improve src
authorEdgar E. Iglesias <edgar.iglesias@gmail.com>
Thu, 24 Oct 2013 17:18:28 +0000 (19:18 +0200)
committerEdgar E. Iglesias <edgar.iglesias@gmail.com>
Thu, 24 Oct 2013 20:32:56 +0000 (22:32 +0200)
commit09b9f113ad9e2bad57b41f6c67228353972ad1af
tree5e48b0c96401928930c001efe5d3645b28466e06
parentbb3cb951ef530da7d248051347c974e4d20e6ea0
microblaze: Improve src

Microblaze carry is mirrored in MSR[31], pick it directly from
there. Also, no need to mask cpu_R[dc->ra] when calling
write_carry.

15% improvement in linux-user src loops.

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
target-microblaze/translate.c