diff options
Diffstat (limited to 'src/arch/x86')
| -rw-r--r-- | src/arch/x86/isa/microops/regop.isa | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/src/arch/x86/isa/microops/regop.isa b/src/arch/x86/isa/microops/regop.isa index 608b86a70..b91c77c21 100644 --- a/src/arch/x86/isa/microops/regop.isa +++ b/src/arch/x86/isa/microops/regop.isa @@ -661,8 +661,10 @@ let {{ defineMicroRegOpImm('Sext', ''' IntReg val = psrc1; int sign_bit = bits(val, imm8-1, imm8-1); - val = sign_bit ? (val | ~mask(imm8)) : val; - DestReg = merge(DestReg, val, dataSize);''') + uint64_t maskVal = mask(imm8); + val = sign_bit ? (val | ~maskVal) : (val & maskVal); + DestReg = merge(DestReg, val, dataSize); + ''') defineMicroRegOpImm('Zext', 'DestReg = bits(psrc1, imm8-1, 0);') }}; |