diff options
Diffstat (limited to 'src/arch/x86/isa/microops/ldstop.isa')
| -rw-r--r-- | src/arch/x86/isa/microops/ldstop.isa | 36 |
1 files changed, 34 insertions, 2 deletions
diff --git a/src/arch/x86/isa/microops/ldstop.isa b/src/arch/x86/isa/microops/ldstop.isa index 75519f417..1b22b88de 100644 --- a/src/arch/x86/isa/microops/ldstop.isa +++ b/src/arch/x86/isa/microops/ldstop.isa @@ -410,7 +410,22 @@ let {{ defineMicroLoadOp('Ldstl', 'Data = merge(Data, Mem, dataSize);', 'Data = Mem & mask(dataSize * 8);', '(StoreCheck << FlagShift) | Request::LOCKED') - defineMicroLoadOp('Ldfp', 'FpData_uqw = Mem;', big = False) + + defineMicroLoadOp('Ldfp', code='FpData_uqw = Mem', big = False) + + defineMicroLoadOp('Ldfp87', code=''' + switch (dataSize) + { + case 4: + FpData_df = *(float *)&Mem; + break; + case 8: + FpData_df = *(double *)&Mem; + break; + default: + panic("Unhandled data size in LdFp87.\\n"); + } + ''', big = False) def defineMicroStoreOp(mnemonic, code, completeCode="", mem_flags="0"): global header_output @@ -447,7 +462,24 @@ let {{ defineMicroStoreOp('St', 'Mem = pick(Data, 2, dataSize);') defineMicroStoreOp('Stul', 'Mem = pick(Data, 2, dataSize);', mem_flags="Request::LOCKED") - defineMicroStoreOp('Stfp', 'Mem = FpData_uqw;') + + defineMicroStoreOp('Stfp', code='Mem = FpData_uqw;') + + defineMicroStoreOp('Stfp87', code=''' + switch (dataSize) + { + case 4: { + float single(FpData_df); + Mem = *(uint32_t *)&single; + } break; + case 8: + Mem = *(uint64_t *)&FpData_df; + break; + default: + panic("Unhandled data size in StFp87.\\n"); + } + ''') + defineMicroStoreOp('Cda', 'Mem = 0;', mem_flags="Request::NO_ACCESS") iop = InstObjParams("lea", "Lea", 'X86ISA::LdStOp', |