diff options
Diffstat (limited to 'src/arch/mips/isa/formats/util.isa')
-rw-r--r-- | src/arch/mips/isa/formats/util.isa | 74 |
1 files changed, 20 insertions, 54 deletions
diff --git a/src/arch/mips/isa/formats/util.isa b/src/arch/mips/isa/formats/util.isa index 73164bc0d..ec524113d 100644 --- a/src/arch/mips/isa/formats/util.isa +++ b/src/arch/mips/isa/formats/util.isa @@ -40,63 +40,24 @@ def LoadStoreBase(name, Name, ea_code, memacc_code, mem_flags, inst_flags, # add hook to get effective addresses into execution trace output. ea_code += '\nif (traceData) { traceData->setAddr(EA); }\n' - # generate code block objects - ea_cblk = CodeBlock(ea_code) - memacc_cblk = CodeBlock(memacc_code) - postacc_cblk = CodeBlock(postacc_code) - # Some CPU models execute the memory operation as an atomic unit, # while others want to separate them into an effective address # computation and a memory access operation. As a result, we need # to generate three StaticInst objects. Note that the latter two # are nested inside the larger "atomic" one. - # generate InstObjParams for EAComp object - ea_iop = InstObjParams(name, Name, base_class, ea_cblk, inst_flags) - - # generate InstObjParams for MemAcc object - memacc_iop = InstObjParams(name, Name, base_class, memacc_cblk, inst_flags) - # in the split execution model, the MemAcc portion is responsible - # for the post-access code. - memacc_iop.postacc_code = postacc_cblk.code - - # generate InstObjParams for InitiateAcc, CompleteAcc object - # The code used depends on the template being used - if (exec_template_base == 'Load'): - initiateacc_cblk = CodeBlock(ea_code + memacc_code) - completeacc_cblk = CodeBlock(memacc_code + postacc_code) - elif (exec_template_base.startswith('Store')): - initiateacc_cblk = CodeBlock(ea_code + memacc_code) - completeacc_cblk = CodeBlock(postacc_code) - else: - initiateacc_cblk = '' - completeacc_cblk = '' - - initiateacc_iop = InstObjParams(name, Name, base_class, initiateacc_cblk, - inst_flags) - - completeacc_iop = InstObjParams(name, Name, base_class, completeacc_cblk, - inst_flags) - - if (exec_template_base == 'Load'): - initiateacc_iop.ea_code = ea_cblk.code - initiateacc_iop.memacc_code = memacc_cblk.code - completeacc_iop.memacc_code = memacc_cblk.code - completeacc_iop.postacc_code = postacc_cblk.code - elif (exec_template_base.startswith('Store')): - initiateacc_iop.ea_code = ea_cblk.code - initiateacc_iop.memacc_code = memacc_cblk.code - completeacc_iop.postacc_code = postacc_cblk.code - - # generate InstObjParams for unified execution - cblk = CodeBlock(ea_code + memacc_code + postacc_code) - iop = InstObjParams(name, Name, base_class, cblk, inst_flags) - - iop.ea_constructor = ea_cblk.constructor - iop.ea_code = ea_cblk.code - iop.memacc_constructor = memacc_cblk.constructor - iop.memacc_code = memacc_cblk.code - iop.postacc_code = postacc_cblk.code + # Generate InstObjParams for each of the three objects. Note that + # they differ only in the set of code objects contained (which in + # turn affects the object's overall operand list). + iop = InstObjParams(name, Name, base_class, + { 'ea_code':ea_code, 'memacc_code':memacc_code, 'postacc_code':postacc_code }, + inst_flags) + ea_iop = InstObjParams(name, Name, base_class, + { 'ea_code':ea_code }, + inst_flags) + memacc_iop = InstObjParams(name, Name, base_class, + { 'memacc_code':memacc_code, 'postacc_code':postacc_code }, + inst_flags) if mem_flags: s = '\n\tmemAccessFlags = ' + string.join(mem_flags, '|') + ';' @@ -117,14 +78,19 @@ def LoadStoreBase(name, Name, ea_code, memacc_code, mem_flags, inst_flags, completeAccTemplate = eval(exec_template_base + 'CompleteAcc') # (header_output, decoder_output, decode_block, exec_output) - return (LoadStoreDeclare.subst(iop), LoadStoreConstructor.subst(iop), + return (LoadStoreDeclare.subst(iop), + EACompConstructor.subst(ea_iop) + + MemAccConstructor.subst(memacc_iop) + + LoadStoreConstructor.subst(iop), decode_template.subst(iop), EACompExecute.subst(ea_iop) + memAccExecTemplate.subst(memacc_iop) + fullExecTemplate.subst(iop) - + initiateAccTemplate.subst(initiateacc_iop) - + completeAccTemplate.subst(completeacc_iop)) + + initiateAccTemplate.subst(iop) + + completeAccTemplate.subst(iop)) }}; + + output header {{ std::string inst2string(MachInst machInst); }}; |