diff options
Diffstat (limited to 'src/arch/arm/isa/insts/data.isa')
| -rw-r--r-- | src/arch/arm/isa/insts/data.isa | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/src/arch/arm/isa/insts/data.isa b/src/arch/arm/isa/insts/data.isa index 4efbae574..73871c873 100644 --- a/src/arch/arm/isa/insts/data.isa +++ b/src/arch/arm/isa/insts/data.isa @@ -428,6 +428,46 @@ let {{ Dest = resTemp; resTemp = geBits; ''', flagType="ge", buildNonCc=False) + buildRegDataInst("sasx", ''' + int32_t midRes, geBits = 0; + resTemp = 0; + int64_t arg1Low = sext<16>(bits(Op1.sw, 15, 0)); + int64_t arg1High = sext<16>(bits(Op1.sw, 31, 16)); + int64_t arg2Low = sext<16>(bits(Op2.sw, 15, 0)); + int64_t arg2High = sext<16>(bits(Op2.sw, 31, 16)); + midRes = arg1Low - arg2High; + if (midRes >= 0) { + geBits = geBits | 0x3; + } + replaceBits(resTemp, 15, 0, midRes); + midRes = arg1High + arg2Low; + if (midRes >= 0) { + geBits = geBits | 0xc; + } + replaceBits(resTemp, 31, 16, midRes); + Dest = resTemp; + resTemp = geBits; + ''', flagType="ge", buildNonCc=True) + buildRegDataInst("ssax", ''' + int32_t midRes, geBits = 0; + resTemp = 0; + int64_t arg1Low = sext<16>(bits(Op1.sw, 15, 0)); + int64_t arg1High = sext<16>(bits(Op1.sw, 31, 16)); + int64_t arg2Low = sext<16>(bits(Op2.sw, 15, 0)); + int64_t arg2High = sext<16>(bits(Op2.sw, 31, 16)); + midRes = arg1Low + arg2High; + if (midRes >= 0) { + geBits = geBits | 0x3; + } + replaceBits(resTemp, 15, 0, midRes); + midRes = arg1High - arg2Low; + if (midRes >= 0) { + geBits = geBits | 0xc; + } + replaceBits(resTemp, 31, 16, midRes); + Dest = resTemp; + resTemp = geBits; + ''', flagType="ge", buildNonCc=True) buildRegDataInst("uqadd16", ''' uint32_t midRes; |