diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/arch/x86/insts/static_inst.hh | 21 | ||||
| -rw-r--r-- | src/arch/x86/intregs.hh | 5 | ||||
| -rw-r--r-- | src/arch/x86/isa/microops/regop.isa | 13 |
3 files changed, 36 insertions, 3 deletions
diff --git a/src/arch/x86/insts/static_inst.hh b/src/arch/x86/insts/static_inst.hh index 22139fc77..e5c333e75 100644 --- a/src/arch/x86/insts/static_inst.hh +++ b/src/arch/x86/insts/static_inst.hh @@ -140,6 +140,27 @@ namespace X86ISA panic("Tried to pick with unrecognized size %d.\n", size); } } + + inline int64_t signedPick(uint64_t from, int idx, int size) const + { + X86IntReg reg = from; + DPRINTF(X86, "Picking with size %d\n", size); + if(_srcRegIdx[idx] & (1 << 6)) + return reg.SH; + switch(size) + { + case 1: + return reg.SL; + case 2: + return reg.SX; + case 4: + return reg.SE; + case 8: + return reg.SR; + default: + panic("Tried to pick with unrecognized size %d.\n", size); + } + } }; } diff --git a/src/arch/x86/intregs.hh b/src/arch/x86/intregs.hh index bfec7d041..dbbb9f97e 100644 --- a/src/arch/x86/intregs.hh +++ b/src/arch/x86/intregs.hh @@ -64,10 +64,15 @@ namespace X86ISA { BitUnion64(X86IntReg) Bitfield<63,0> R; + SignedBitfield<63,0> SR; Bitfield<31,0> E; + SignedBitfield<31,0> SE; Bitfield<15,0> X; + SignedBitfield<15,0> SX; Bitfield<15,8> H; + SignedBitfield<15,8> SH; Bitfield<7, 0> L; + SignedBitfield<7, 0> SL; EndBitUnion(X86IntReg) enum IntRegIndex diff --git a/src/arch/x86/isa/microops/regop.isa b/src/arch/x86/isa/microops/regop.isa index 60089085f..6d68f4fe9 100644 --- a/src/arch/x86/isa/microops/regop.isa +++ b/src/arch/x86/isa/microops/regop.isa @@ -283,10 +283,17 @@ let {{ # compute it. matcher = re.compile("(?<!\w)psrc1(?!\w)") if matcher.search(allCode): - code = "IntReg psrc1 = pick(SrcReg1, 0, dataSize);" + code + code = "uint64_t psrc1 = pick(SrcReg1, 0, dataSize);" + code matcher = re.compile("(?<!\w)psrc2(?!\w)") if matcher.search(allCode): - code = "IntReg psrc2 = pick(SrcReg2, 1, dataSize);" + code + code = "uint64_t psrc2 = pick(SrcReg2, 1, dataSize);" + code + # Also make available versions which do sign extension + matcher = re.compile("(?<!\w)spsrc1(?!\w)") + if matcher.search(allCode): + code = "int64_t spsrc1 = signedPick(SrcReg1, 0, dataSize);" + code + matcher = re.compile("(?<!\w)spsrc2(?!\w)") + if matcher.search(allCode): + code = "int64_t spsrc2 = signedPick(SrcReg2, 1, dataSize);" + code base = "X86ISA::RegOp" @@ -671,7 +678,7 @@ let {{ #FIXME This needs to always use 32 bits unless REX.W is present class cvtf_i2d(ConvOp): - code = 'FpDestReg = psrc1;' + code = 'FpDestReg = spsrc1;' class cvtf_i2d_hi(ConvOp): code = 'FpDestReg = bits(SrcReg1, 63, 32);' |