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| author | Gabe Black <gblack@eecs.umich.edu> | 2010-05-12 00:51:35 -0700 |
|---|---|---|
| committer | Gabe Black <gblack@eecs.umich.edu> | 2010-05-12 00:51:35 -0700 |
| commit | c4497dbf031ab250c1c1702f6952917d1de3f565 (patch) | |
| tree | abda6081a72ea935b502e5ed7e71054eca8f54c0 /src/arch/x86/isa | |
| parent | cc76842f830f15b12c0f4a64e90fe3ca9e35a45a (diff) | |
| download | gem5-c4497dbf031ab250c1c1702f6952917d1de3f565.tar.xz | |
X86: Make the cvti2f microop sign extend its integer source correctly.
The code was using the wrong bit as the sign bit. Other similar bits of code
seem to be correct.
Diffstat (limited to 'src/arch/x86/isa')
| -rw-r--r-- | src/arch/x86/isa/microops/mediaop.isa | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/arch/x86/isa/microops/mediaop.isa b/src/arch/x86/isa/microops/mediaop.isa index 900c166f8..9a2707b59 100644 --- a/src/arch/x86/isa/microops/mediaop.isa +++ b/src/arch/x86/isa/microops/mediaop.isa @@ -1294,7 +1294,8 @@ let {{ int srcLoIndex = srcStart + (i + 0) * srcSizeBits; uint64_t argBits = bits(FpSrcReg1.uqw, srcHiIndex, srcLoIndex); - int64_t sArg = argBits | (0 - (argBits & (ULL(1) << srcHiIndex))); + int64_t sArg = argBits | + (0 - (argBits & (ULL(1) << (srcSizeBits - 1)))); double arg = sArg; if (destSize == 4) { |