diff options
Diffstat (limited to 'src/arch/alpha/isa/mem.isa')
| -rw-r--r-- | src/arch/alpha/isa/mem.isa | 94 |
1 files changed, 32 insertions, 62 deletions
diff --git a/src/arch/alpha/isa/mem.isa b/src/arch/alpha/isa/mem.isa index 02291ed6b..c0bdd2c05 100644 --- a/src/arch/alpha/isa/mem.isa +++ b/src/arch/alpha/isa/mem.isa @@ -126,7 +126,7 @@ output decoder {{ }}; def format LoadAddress(code) {{ - iop = InstObjParams(name, Name, 'MemoryDisp32', CodeBlock(code)) + iop = InstObjParams(name, Name, 'MemoryDisp32', code) header_output = BasicDeclare.subst(iop) decoder_output = BasicConstructor.subst(iop) decode_block = BasicDecode.subst(iop) @@ -191,22 +191,28 @@ def template CompleteAccDeclare {{ }}; -def template LoadStoreConstructor {{ +def template EACompConstructor {{ /** TODO: change op_class to AddrGenOp or something (requires * creating new member of OpClass enum in op_class.hh, updating * config files, etc.). */ inline %(class_name)s::EAComp::EAComp(ExtMachInst machInst) : %(base_class)s("%(mnemonic)s (EAComp)", machInst, IntAluOp) { - %(ea_constructor)s; + %(constructor)s; } +}}; + +def template MemAccConstructor {{ inline %(class_name)s::MemAcc::MemAcc(ExtMachInst machInst) : %(base_class)s("%(mnemonic)s (MemAcc)", machInst, %(op_class)s) { - %(memacc_constructor)s; + %(constructor)s; } +}}; + +def template LoadStoreConstructor {{ inline %(class_name)s::%(class_name)s(ExtMachInst machInst) : %(base_class)s("%(mnemonic)s", machInst, %(op_class)s, new EAComp(machInst), new MemAcc(machInst)) @@ -227,7 +233,7 @@ def template EACompExecute {{ %(fp_enable_check)s; %(op_decl)s; %(op_rd)s; - %(code)s; + %(ea_code)s; if (fault == NoFault) { %(op_wb)s; @@ -253,7 +259,7 @@ def template LoadMemAccExecute {{ if (fault == NoFault) { fault = xc->read(EA, (uint%(mem_acc_size)d_t&)Mem, memAccessFlags); - %(code)s; + %(memacc_code)s; } if (fault == NoFault) { @@ -352,7 +358,7 @@ def template StoreMemAccExecute {{ EA = xc->getEA(); if (fault == NoFault) { - %(code)s; + %(memacc_code)s; } if (fault == NoFault) { @@ -497,7 +503,7 @@ def template MiscMemAccExecute {{ EA = xc->getEA(); if (fault == NoFault) { - %(code)s; + %(memacc_code)s; } return NoFault; @@ -582,63 +588,24 @@ 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, '|') + ';' @@ -659,13 +626,16 @@ 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)) }}; def format LoadOrNop(memacc_code, ea_code = {{ EA = Rb + disp; }}, |