tree 0bfb80cad7b80cb90f1cf387c569b469e49f3f70
parent 2d7adea4fe57a12f3b9f4b4761db2a90cb54173a
author Artyom Tarasenko <atar4qemu@gmail.com> 1257363506 +0000
committer Blue Swirl <blauwirbel@gmail.com> 1257363506 +0000

Sparc: fix carry flag handling (Solaris bootblk fix)

The page 108 of the SPARC Version 8 Architecture Manual describes
that addcc and addxcc shall compute carry flag the same way.
The page 110 claims the same about subcc and subxcc instructions.
This patch fixes carry computation in corner cases and removes redundant code.
The most visible effect of the patch is enabling Solaris boot when using OBP.

Signed-off-by: Artyom Tarasenko <atar4qemu@gmail.com>
[blauwirbel@gmail.com: cleaned up formatting]
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>