changeset fc096f28bcd2 in /z/repo/m5
details: http://repo.m5sim.org/m5?cmd=changeset;node=fc096f28bcd2
description:
X86: Fix the computation of the upper part of rotate right with carry.
diffstat:
1 file changed, 1 insertion(+), 1 deletion(-)
src/arch/x86/isa/microops/regop.isa | 2 +-
diffs (12 lines):
diff -r b9aa6a397b57 -r fc096f28bcd2 src/arch/x86/isa/microops/regop.isa
--- a/src/arch/x86/isa/microops/regop.isa Wed Aug 05 03:00:23 2009 -0700
+++ b/src/arch/x86/isa/microops/regop.isa Wed Aug 05 03:00:43 2009 -0700
@@ -767,7 +767,7 @@
CCFlagBits flags = ccFlagBits;
uint64_t top = flags.cf << (dataSize * 8 - shiftAmt);
if(shiftAmt > 1)
- top |= psrc1 << (dataSize * 8 - shiftAmt - 1);
+ top |= psrc1 << (dataSize * 8 - shiftAmt + 1);
uint64_t bottom = bits(psrc1, dataSize * 8, shiftAmt);
DestReg = merge(DestReg, top | bottom, dataSize);
}
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