diff options
Diffstat (limited to 'src/arch/sparc/isa/formats/mem/util.isa')
| -rw-r--r-- | src/arch/sparc/isa/formats/mem/util.isa | 40 |
1 files changed, 25 insertions, 15 deletions
diff --git a/src/arch/sparc/isa/formats/mem/util.isa b/src/arch/sparc/isa/formats/mem/util.isa index 241a25d17..673aee6be 100644 --- a/src/arch/sparc/isa/formats/mem/util.isa +++ b/src/arch/sparc/isa/formats/mem/util.isa @@ -102,6 +102,9 @@ def template StoreExecute {{ { Fault fault = NoFault; uint64_t write_result = 0; + //This is to support the conditional store in cas instructions. + //It should be optomized out in all the others + bool storeCond = true; Addr EA; %(op_decl)s; %(op_rd)s; @@ -112,7 +115,7 @@ def template StoreExecute {{ { %(code)s; } - if(fault == NoFault) + if(storeCond && fault == NoFault) { fault = xc->write((uint%(mem_acc_size)s_t)Mem, EA, 0, &write_result); } @@ -130,6 +133,7 @@ def template StoreExecute {{ { Fault fault = NoFault; uint64_t write_result = 0; + bool storeCond = true; Addr EA; %(op_decl)s; %(op_rd)s; @@ -140,7 +144,7 @@ def template StoreExecute {{ { %(code)s; } - if(fault == NoFault) + if(storeCond && fault == NoFault) { fault = xc->write((uint%(mem_acc_size)s_t)Mem, EA, 0, &write_result); } @@ -204,23 +208,29 @@ let {{ //and in the other they're distributed across two. Also note that for //execute functions, the name of the base class doesn't matter. let {{ - def doSplitExecute(code, eaRegCode, eaImmCode, execute, + def doSplitExecute(code, eaCode, execute, + faultCode, name, Name, opt_flags): + codeIop = InstObjParams(name, Name, '', code, opt_flags) + eaIop = InstObjParams(name, Name, '', eaCode, + opt_flags, {"fault_check": faultCode}) + iop = InstObjParams(name, Name, '', code, opt_flags, + {"fault_check": faultCode, "ea_code" : eaCode}) + (iop.ea_decl, + iop.ea_rd, + iop.ea_wb) = (eaIop.op_decl, eaIop.op_rd, eaIop.op_wb) + (iop.code_decl, + iop.code_rd, + iop.code_wb) = (codeIop.op_decl, codeIop.op_rd, codeIop.op_wb) + return execute.subst(iop) + + + def doDualSplitExecute(code, eaRegCode, eaImmCode, execute, faultCode, nameReg, nameImm, NameReg, NameImm, opt_flags): - codeIop = InstObjParams(nameReg, NameReg, '', code, opt_flags) executeCode = '' for (eaCode, name, Name) in ( (eaRegCode, nameReg, NameReg), (eaImmCode, nameImm, NameImm)): - eaIop = InstObjParams(name, Name, '', eaCode, - opt_flags, {"fault_check": faultCode}) - iop = InstObjParams(name, Name, '', code, opt_flags, - {"fault_check": faultCode, "ea_code" : eaCode}) - (iop.ea_decl, - iop.ea_rd, - iop.ea_wb) = (eaIop.op_decl, eaIop.op_rd, eaIop.op_wb) - (iop.code_decl, - iop.code_rd, - iop.code_wb) = (codeIop.op_decl, codeIop.op_rd, codeIop.op_wb) - executeCode += execute.subst(iop) + executeCode += doSplitExecute(code, eaCode, + execute, faultCode, name, Name, opt_flags) return executeCode }}; |