Merge zizzer.eecs.umich.edu:/.automount/zower/eecshome/m5/newmem
into zizzer.eecs.umich.edu:/z/m5/Bitkeeper/sparco3 --HG-- extra : convert_revision : f17800685609d8353ec14676f45fbb123fc4e6c3
This commit is contained in:
commit
9e7dc34383
13 changed files with 175 additions and 208 deletions
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@ -218,7 +218,7 @@ def template JumpOrBranchDecode {{
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def format CondBranch(code) {{
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code = 'bool cond;\n' + code + '\nif (cond) NPC = NPC + disp;\n';
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iop = InstObjParams(name, Name, 'Branch', CodeBlock(code),
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iop = InstObjParams(name, Name, 'Branch', code,
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('IsDirectControl', 'IsCondControl'))
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header_output = BasicDeclare.subst(iop)
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decoder_output = BasicConstructor.subst(iop)
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@ -230,8 +230,7 @@ let {{
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def UncondCtrlBase(name, Name, base_class, npc_expr, flags):
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# Declare basic control transfer w/o link (i.e. link reg is R31)
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nolink_code = 'NPC = %s;\n' % npc_expr
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nolink_iop = InstObjParams(name, Name, base_class,
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CodeBlock(nolink_code), flags)
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nolink_iop = InstObjParams(name, Name, base_class, nolink_code, flags)
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header_output = BasicDeclare.subst(nolink_iop)
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decoder_output = BasicConstructor.subst(nolink_iop)
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exec_output = BasicExecute.subst(nolink_iop)
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@ -239,7 +238,7 @@ def UncondCtrlBase(name, Name, base_class, npc_expr, flags):
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# Generate declaration of '*AndLink' version, append to decls
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link_code = 'Ra = NPC & ~3;\n' + nolink_code
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link_iop = InstObjParams(name, Name + 'AndLink', base_class,
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CodeBlock(link_code), flags)
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link_code, flags)
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header_output += BasicDeclare.subst(link_iop)
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decoder_output += BasicConstructor.subst(link_iop)
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exec_output += BasicExecute.subst(link_iop)
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@ -293,7 +293,7 @@ def template FloatingPointDecode {{
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// currently unimplemented (will fail).
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// - Generates NOP if FC == 31.
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def format FloatingPointOperate(code, *opt_args) {{
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iop = InstObjParams(name, Name, 'AlphaFP', CodeBlock(code), opt_args)
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iop = InstObjParams(name, Name, 'AlphaFP', code, opt_args)
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decode_block = FloatingPointDecode.subst(iop)
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header_output = BasicDeclare.subst(iop)
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decoder_output = BasicConstructor.subst(iop)
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@ -303,7 +303,7 @@ def format FloatingPointOperate(code, *opt_args) {{
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// Special format for cvttq where rounding mode is pre-decoded
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def format FPFixedRounding(code, class_suffix, *opt_args) {{
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Name += class_suffix
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iop = InstObjParams(name, Name, 'AlphaFP', CodeBlock(code), opt_args)
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iop = InstObjParams(name, Name, 'AlphaFP', code, opt_args)
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decode_block = FloatingPointDecode.subst(iop)
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header_output = BasicDeclare.subst(iop)
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decoder_output = BasicConstructor.subst(iop)
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@ -113,16 +113,14 @@ def format IntegerOperate(code, *opt_flags) {{
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imm_code = re.sub(r'Rb_or_imm(\.\w+)?', 'imm', orig_code)
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# generate declaration for register version
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cblk = CodeBlock(code)
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iop = InstObjParams(name, Name, 'AlphaStaticInst', cblk, opt_flags)
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iop = InstObjParams(name, Name, 'AlphaStaticInst', code, opt_flags)
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header_output = BasicDeclare.subst(iop)
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decoder_output = BasicConstructor.subst(iop)
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exec_output = BasicExecute.subst(iop)
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if uses_imm:
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# append declaration for imm version
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imm_cblk = CodeBlock(imm_code)
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imm_iop = InstObjParams(name, Name + 'Imm', 'IntegerImm', imm_cblk,
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imm_iop = InstObjParams(name, Name + 'Imm', 'IntegerImm', imm_code,
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opt_flags)
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header_output += BasicDeclare.subst(imm_iop)
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decoder_output += BasicConstructor.subst(imm_iop)
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@ -338,7 +338,7 @@ def template BasicDecodeWithMnemonic {{
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// The most basic instruction format... used only for a few misc. insts
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def format BasicOperate(code, *flags) {{
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iop = InstObjParams(name, Name, 'AlphaStaticInst', CodeBlock(code), flags)
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iop = InstObjParams(name, Name, 'AlphaStaticInst', code, flags)
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header_output = BasicDeclare.subst(iop)
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decoder_output = BasicConstructor.subst(iop)
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decode_block = BasicDecode.subst(iop)
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@ -424,8 +424,7 @@ def template OperateNopCheckDecode {{
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// Like BasicOperate format, but generates NOP if RC/FC == 31
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def format BasicOperateWithNopCheck(code, *opt_args) {{
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iop = InstObjParams(name, Name, 'AlphaStaticInst', CodeBlock(code),
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opt_args)
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iop = InstObjParams(name, Name, 'AlphaStaticInst', code, opt_args)
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header_output = BasicDeclare.subst(iop)
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decoder_output = BasicConstructor.subst(iop)
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decode_block = OperateNopCheckDecode.subst(iop)
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@ -126,7 +126,7 @@ output decoder {{
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}};
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def format LoadAddress(code) {{
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iop = InstObjParams(name, Name, 'MemoryDisp32', CodeBlock(code))
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iop = InstObjParams(name, Name, 'MemoryDisp32', code)
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header_output = BasicDeclare.subst(iop)
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decoder_output = BasicConstructor.subst(iop)
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decode_block = BasicDecode.subst(iop)
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@ -191,22 +191,28 @@ def template CompleteAccDeclare {{
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}};
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def template LoadStoreConstructor {{
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def template EACompConstructor {{
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/** TODO: change op_class to AddrGenOp or something (requires
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* creating new member of OpClass enum in op_class.hh, updating
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* config files, etc.). */
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inline %(class_name)s::EAComp::EAComp(ExtMachInst machInst)
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: %(base_class)s("%(mnemonic)s (EAComp)", machInst, IntAluOp)
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{
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%(ea_constructor)s;
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%(constructor)s;
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}
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}};
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def template MemAccConstructor {{
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inline %(class_name)s::MemAcc::MemAcc(ExtMachInst machInst)
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: %(base_class)s("%(mnemonic)s (MemAcc)", machInst, %(op_class)s)
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{
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%(memacc_constructor)s;
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%(constructor)s;
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}
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}};
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def template LoadStoreConstructor {{
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inline %(class_name)s::%(class_name)s(ExtMachInst machInst)
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: %(base_class)s("%(mnemonic)s", machInst, %(op_class)s,
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new EAComp(machInst), new MemAcc(machInst))
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@ -227,7 +233,7 @@ def template EACompExecute {{
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%(fp_enable_check)s;
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%(op_decl)s;
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%(op_rd)s;
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%(code)s;
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%(ea_code)s;
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if (fault == NoFault) {
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%(op_wb)s;
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@ -253,7 +259,7 @@ def template LoadMemAccExecute {{
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if (fault == NoFault) {
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fault = xc->read(EA, (uint%(mem_acc_size)d_t&)Mem, memAccessFlags);
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%(code)s;
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%(memacc_code)s;
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}
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if (fault == NoFault) {
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@ -352,7 +358,7 @@ def template StoreMemAccExecute {{
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EA = xc->getEA();
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if (fault == NoFault) {
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%(code)s;
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%(memacc_code)s;
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}
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if (fault == NoFault) {
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@ -497,7 +503,7 @@ def template MiscMemAccExecute {{
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EA = xc->getEA();
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if (fault == NoFault) {
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%(code)s;
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%(memacc_code)s;
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}
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return NoFault;
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@ -582,63 +588,24 @@ def LoadStoreBase(name, Name, ea_code, memacc_code, mem_flags, inst_flags,
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# add hook to get effective addresses into execution trace output.
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ea_code += '\nif (traceData) { traceData->setAddr(EA); }\n'
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# generate code block objects
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ea_cblk = CodeBlock(ea_code)
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memacc_cblk = CodeBlock(memacc_code)
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postacc_cblk = CodeBlock(postacc_code)
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# Some CPU models execute the memory operation as an atomic unit,
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# while others want to separate them into an effective address
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# computation and a memory access operation. As a result, we need
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# to generate three StaticInst objects. Note that the latter two
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# are nested inside the larger "atomic" one.
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# generate InstObjParams for EAComp object
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ea_iop = InstObjParams(name, Name, base_class, ea_cblk, inst_flags)
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# generate InstObjParams for MemAcc object
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memacc_iop = InstObjParams(name, Name, base_class, memacc_cblk, inst_flags)
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# in the split execution model, the MemAcc portion is responsible
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# for the post-access code.
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memacc_iop.postacc_code = postacc_cblk.code
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# generate InstObjParams for InitiateAcc, CompleteAcc object
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# The code used depends on the template being used
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if (exec_template_base == 'Load'):
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initiateacc_cblk = CodeBlock(ea_code + memacc_code)
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completeacc_cblk = CodeBlock(memacc_code + postacc_code)
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elif (exec_template_base.startswith('Store')):
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initiateacc_cblk = CodeBlock(ea_code + memacc_code)
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completeacc_cblk = CodeBlock(postacc_code)
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else:
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initiateacc_cblk = ''
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completeacc_cblk = ''
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initiateacc_iop = InstObjParams(name, Name, base_class, initiateacc_cblk,
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inst_flags)
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completeacc_iop = InstObjParams(name, Name, base_class, completeacc_cblk,
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inst_flags)
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if (exec_template_base == 'Load'):
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initiateacc_iop.ea_code = ea_cblk.code
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initiateacc_iop.memacc_code = memacc_cblk.code
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completeacc_iop.memacc_code = memacc_cblk.code
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completeacc_iop.postacc_code = postacc_cblk.code
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elif (exec_template_base.startswith('Store')):
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initiateacc_iop.ea_code = ea_cblk.code
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initiateacc_iop.memacc_code = memacc_cblk.code
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completeacc_iop.postacc_code = postacc_cblk.code
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# generate InstObjParams for unified execution
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cblk = CodeBlock(ea_code + memacc_code + postacc_code)
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iop = InstObjParams(name, Name, base_class, cblk, inst_flags)
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iop.ea_constructor = ea_cblk.constructor
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iop.ea_code = ea_cblk.code
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iop.memacc_constructor = memacc_cblk.constructor
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iop.memacc_code = memacc_cblk.code
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iop.postacc_code = postacc_cblk.code
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# Generate InstObjParams for each of the three objects. Note that
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# they differ only in the set of code objects contained (which in
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# turn affects the object's overall operand list).
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iop = InstObjParams(name, Name, base_class,
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{ 'ea_code':ea_code, 'memacc_code':memacc_code, 'postacc_code':postacc_code },
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inst_flags)
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ea_iop = InstObjParams(name, Name, base_class,
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{ 'ea_code':ea_code },
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inst_flags)
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memacc_iop = InstObjParams(name, Name, base_class,
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{ 'memacc_code':memacc_code, 'postacc_code':postacc_code },
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inst_flags)
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if mem_flags:
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s = '\n\tmemAccessFlags = ' + string.join(mem_flags, '|') + ';'
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@ -659,13 +626,16 @@ def LoadStoreBase(name, Name, ea_code, memacc_code, mem_flags, inst_flags,
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completeAccTemplate = eval(exec_template_base + 'CompleteAcc')
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# (header_output, decoder_output, decode_block, exec_output)
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return (LoadStoreDeclare.subst(iop), LoadStoreConstructor.subst(iop),
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return (LoadStoreDeclare.subst(iop),
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EACompConstructor.subst(ea_iop)
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+ MemAccConstructor.subst(memacc_iop)
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+ LoadStoreConstructor.subst(iop),
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decode_template.subst(iop),
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EACompExecute.subst(ea_iop)
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+ memAccExecTemplate.subst(memacc_iop)
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+ fullExecTemplate.subst(iop)
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+ initiateAccTemplate.subst(initiateacc_iop)
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+ completeAccTemplate.subst(completeacc_iop))
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+ initiateAccTemplate.subst(iop)
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+ completeAccTemplate.subst(iop))
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}};
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def format LoadOrNop(memacc_code, ea_code = {{ EA = Rb + disp; }},
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@ -68,7 +68,7 @@ output decoder {{
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}};
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def format EmulatedCallPal(code, *flags) {{
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iop = InstObjParams(name, Name, 'EmulatedCallPal', CodeBlock(code), flags)
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iop = InstObjParams(name, Name, 'EmulatedCallPal', code, flags)
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header_output = BasicDeclare.subst(iop)
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decoder_output = BasicConstructor.subst(iop)
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decode_block = BasicDecode.subst(iop)
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@ -131,7 +131,7 @@ output decoder {{
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}};
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def format CallPal(code, *flags) {{
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iop = InstObjParams(name, Name, 'CallPalBase', CodeBlock(code), flags)
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iop = InstObjParams(name, Name, 'CallPalBase', code, flags)
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header_output = BasicDeclare.subst(iop)
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decoder_output = BasicConstructor.subst(iop)
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decode_block = BasicDecode.subst(iop)
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@ -269,8 +269,7 @@ output decoder {{
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def format HwMoveIPR(code, *flags) {{
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all_flags = ['IprAccessOp']
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all_flags += flags
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iop = InstObjParams(name, Name, 'HwMoveIPR', CodeBlock(code),
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all_flags)
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iop = InstObjParams(name, Name, 'HwMoveIPR', code, all_flags)
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header_output = BasicDeclare.subst(iop)
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decoder_output = BasicConstructor.subst(iop)
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decode_block = BasicDecode.subst(iop)
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@ -1017,37 +1017,38 @@ class Template:
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# CPU-model-specific substitutions are handled later (in GenCode).
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template = protect_cpu_symbols(template)
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# if we're dealing with an InstObjParams object, we need to be a
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# little more sophisticated. Otherwise, just do what we've always
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# done
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# Build a dict ('myDict') to use for the template substitution.
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# Start with the template namespace. Make a copy since we're
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# going to modify it.
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myDict = templateMap.copy()
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if isinstance(d, InstObjParams):
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# The instruction wide parameters are already formed, but the
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# parameters which are only function wide still need to be
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# generated.
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perFuncNames = ['op_decl', 'op_src_decl', 'op_dest_decl', \
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'op_rd', 'op_wb', 'mem_acc_size', 'mem_acc_type']
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# If we're dealing with an InstObjParams object, we need
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# to be a little more sophisticated. The instruction-wide
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# parameters are already formed, but the parameters which
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# are only function wide still need to be generated.
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compositeCode = ''
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myDict = templateMap.copy()
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myDict.update(d.__dict__)
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# The "operands" and "snippets" attributes of the InstObjParams
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# objects are for internal use and not substitution.
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del myDict['operands']
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del myDict['snippets']
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for name in labelRE.findall(template):
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# Don't try to find a snippet to go with things that will
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# match against attributes of d, or that are other templates,
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# or that we're going to generate later, or that we've already
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# found.
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if not hasattr(d, name) and \
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not templateMap.has_key(name) and \
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not myDict.has_key(name) and \
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name not in perFuncNames:
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myDict[name] = d.snippets[name]
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if isinstance(myDict[name], str):
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myDict[name] = substMungedOpNames(substBitOps(myDict[name]))
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compositeCode += (" " + myDict[name])
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snippetLabels = [l for l in labelRE.findall(template)
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if d.snippets.has_key(l)]
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snippets = dict([(s, mungeSnippet(d.snippets[s]))
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for s in snippetLabels])
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myDict.update(snippets)
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compositeCode = ' '.join(map(str, snippets.values()))
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# Add in template itself in case it references any
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# operands explicitly (like Mem)
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compositeCode += ' ' + template
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operands = SubOperandList(compositeCode, d.operands)
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myDict['op_decl'] = operands.concatAttrStrings('op_decl')
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@ -1067,18 +1068,14 @@ class Template:
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myDict['mem_acc_size'] = d.operands.memOperand.mem_acc_size
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myDict['mem_acc_type'] = d.operands.memOperand.mem_acc_type
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else:
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# Start with the template namespace. Make a copy since we're
|
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# going to modify it.
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myDict = templateMap.copy()
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elif isinstance(d, dict):
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# if the argument is a dictionary, we just use it.
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if isinstance(d, dict):
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myDict.update(d)
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myDict.update(d)
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elif hasattr(d, '__dict__'):
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# if the argument is an object, we use its attribute map.
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elif hasattr(d, '__dict__'):
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myDict.update(d.__dict__)
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else:
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raise TypeError, "Template.subst() arg must be or have dictionary"
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myDict.update(d.__dict__)
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else:
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raise TypeError, "Template.subst() arg must be or have dictionary"
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return template % myDict
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# Convert to string. This handles the case when a template with a
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@ -1662,8 +1659,12 @@ assignRE = re.compile(r'\s*=(?!=)', re.MULTILINE)
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def substMungedOpNames(code):
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return operandsWithExtRE.sub(r'\1', code)
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def joinLists(t):
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return map(string.join, t)
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# Fix up code snippets for final substitution in templates.
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def mungeSnippet(s):
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if isinstance(s, str):
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return substMungedOpNames(substBitOps(s))
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else:
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return s
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def makeFlagConstructor(flag_list):
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if len(flag_list) == 0:
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|
@ -1689,17 +1690,13 @@ opClassRE = re.compile(r'.*Op|No_OpClass')
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class InstObjParams:
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def __init__(self, mnem, class_name, base_class = '',
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snippets = None, opt_args = []):
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snippets = {}, opt_args = []):
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self.mnemonic = mnem
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self.class_name = class_name
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self.base_class = base_class
|
||||
compositeCode = ''
|
||||
if snippets:
|
||||
if not isinstance(snippets, dict):
|
||||
snippets = {'code' : snippets}
|
||||
for snippet in snippets.values():
|
||||
if isinstance(snippet, str):
|
||||
compositeCode += (" " + snippet)
|
||||
if not isinstance(snippets, dict):
|
||||
snippets = {'code' : snippets}
|
||||
compositeCode = ' '.join(map(str, snippets.values()))
|
||||
self.snippets = snippets
|
||||
|
||||
self.operands = OperandList(compositeCode)
|
||||
|
|
|
@ -154,19 +154,20 @@ decode OPCODE_HI default Unknown::unknown() {
|
|||
|
||||
0x3: decode FUNCTION_LO {
|
||||
format HiLoOp {
|
||||
0x0: mult({{ val = Rs.sd * Rt.sd; }});
|
||||
0x1: multu({{ val = Rs.ud * Rt.ud; }});
|
||||
}
|
||||
|
||||
format HiLoMiscOp {
|
||||
0x2: div({{ if (Rt.sd != 0) {
|
||||
HI = Rs.sd % Rt.sd;
|
||||
LO = Rs.sd / Rt.sd;
|
||||
0x0: mult({{ int64_t val = Rs.sd * Rt.sd; }});
|
||||
0x1: multu({{ uint64_t val = Rs.ud * Rt.ud; }});
|
||||
0x2: div({{ int64_t val;
|
||||
if (Rt.sd != 0) {
|
||||
int64_t hi = Rs.sd % Rt.sd;
|
||||
int64_t lo = Rs.sd / Rt.sd;
|
||||
val = (hi << 32) | lo;
|
||||
}
|
||||
}});
|
||||
0x3: divu({{ if (Rt.ud != 0) {
|
||||
HI = Rs.ud % Rt.ud;
|
||||
LO = Rs.ud / Rt.ud;
|
||||
0x3: divu({{ uint64_t val;
|
||||
if (Rt.ud != 0) {
|
||||
uint64_t hi = Rs.ud % Rt.ud;
|
||||
uint64_t lo = Rs.ud / Rt.ud;
|
||||
val = (hi << 32) | lo;
|
||||
}
|
||||
}});
|
||||
}
|
||||
|
@ -950,17 +951,17 @@ decode OPCODE_HI default Unknown::unknown() {
|
|||
}});
|
||||
|
||||
format HiLoOp {
|
||||
0x0: madd({{ val = ((int64_t) HI << 32 | LO) +
|
||||
(Rs.sd * Rt.sd);
|
||||
0x0: madd({{ int64_t val = ((int64_t) HI << 32 | LO) +
|
||||
(Rs.sd * Rt.sd);
|
||||
}});
|
||||
0x1: maddu({{ val = ((uint64_t) HI << 32 | LO) +
|
||||
(Rs.ud * Rt.ud);
|
||||
0x1: maddu({{ uint64_t val = ((uint64_t) HI << 32 | LO) +
|
||||
(Rs.ud * Rt.ud);
|
||||
}});
|
||||
0x4: msub({{ val = ((int64_t) HI << 32 | LO) -
|
||||
(Rs.sd * Rt.sd);
|
||||
0x4: msub({{ int64_t val = ((int64_t) HI << 32 | LO) -
|
||||
(Rs.sd * Rt.sd);
|
||||
}});
|
||||
0x5: msubu({{ val = ((uint64_t) HI << 32 | LO) -
|
||||
(Rs.ud * Rt.ud);
|
||||
0x5: msubu({{ uint64_t val = ((uint64_t) HI << 32 | LO) -
|
||||
(Rs.ud * Rt.ud);
|
||||
}});
|
||||
}
|
||||
}
|
||||
|
|
|
@ -240,11 +240,6 @@ def format IntImmOp(code, *opt_flags) {{
|
|||
}};
|
||||
|
||||
def format HiLoOp(code, *opt_flags) {{
|
||||
if '.sd' in code:
|
||||
code = 'int64_t ' + code
|
||||
elif '.ud' in code:
|
||||
code = 'uint64_t ' + code
|
||||
|
||||
code += 'HI = val<63:32>;\n'
|
||||
code += 'LO = val<31:0>;\n'
|
||||
|
||||
|
@ -260,7 +255,7 @@ def format HiLoMiscOp(code, *opt_flags) {{
|
|||
header_output = BasicDeclare.subst(iop)
|
||||
decoder_output = BasicConstructor.subst(iop)
|
||||
decode_block = BasicDecode.subst(iop)
|
||||
exec_output = HiLoExecute.subst(iop)
|
||||
exec_output = BasicExecute.subst(iop)
|
||||
}};
|
||||
|
||||
|
||||
|
|
|
@ -166,22 +166,28 @@ 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(MachInst machInst)
|
||||
: %(base_class)s("%(mnemonic)s (EAComp)", machInst, IntAluOp)
|
||||
{
|
||||
%(ea_constructor)s;
|
||||
%(constructor)s;
|
||||
}
|
||||
}};
|
||||
|
||||
|
||||
def template MemAccConstructor {{
|
||||
inline %(class_name)s::MemAcc::MemAcc(MachInst 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(MachInst machInst)
|
||||
: %(base_class)s("%(mnemonic)s", machInst, %(op_class)s,
|
||||
new EAComp(machInst), new MemAcc(machInst))
|
||||
|
@ -202,7 +208,7 @@ def template EACompExecute {{
|
|||
%(fp_enable_check)s;
|
||||
%(op_decl)s;
|
||||
%(op_rd)s;
|
||||
%(code)s;
|
||||
%(ea_code)s;
|
||||
|
||||
if (fault == NoFault) {
|
||||
%(op_wb)s;
|
||||
|
@ -228,7 +234,7 @@ 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) {
|
||||
|
@ -327,7 +333,7 @@ def template StoreMemAccExecute {{
|
|||
EA = xc->getEA();
|
||||
|
||||
if (fault == NoFault) {
|
||||
%(code)s;
|
||||
%(memacc_code)s;
|
||||
}
|
||||
|
||||
if (fault == NoFault) {
|
||||
|
@ -471,7 +477,7 @@ def template MiscMemAccExecute {{
|
|||
EA = xc->getEA();
|
||||
|
||||
if (fault == NoFault) {
|
||||
%(code)s;
|
||||
%(memacc_code)s;
|
||||
}
|
||||
|
||||
return NoFault;
|
||||
|
|
|
@ -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);
|
||||
}};
|
||||
|
|
|
@ -170,7 +170,6 @@ def template LoadInitiateAcc {{
|
|||
{
|
||||
Fault fault = NoFault;
|
||||
Addr EA;
|
||||
uint%(mem_acc_size)s_t Mem;
|
||||
%(op_decl)s;
|
||||
%(op_rd)s;
|
||||
%(ea_code)s;
|
||||
|
|
|
@ -123,6 +123,44 @@ class AlphaDynInst : public BaseDynInst<Impl>
|
|||
this->threadNumber);
|
||||
}
|
||||
|
||||
/** Reads a miscellaneous register. */
|
||||
TheISA::MiscReg readMiscRegOperand(const StaticInst *si, int idx)
|
||||
{
|
||||
return this->cpu->readMiscReg(
|
||||
si->srcRegIdx(idx) - TheISA::Ctrl_Base_DepTag,
|
||||
this->threadNumber);
|
||||
}
|
||||
|
||||
/** Reads a misc. register, including any side-effects the read
|
||||
* might have as defined by the architecture.
|
||||
*/
|
||||
TheISA::MiscReg readMiscRegOperandWithEffect(const StaticInst *si, int idx)
|
||||
{
|
||||
return this->cpu->readMiscRegWithEffect(
|
||||
si->srcRegIdx(idx) - TheISA::Ctrl_Base_DepTag,
|
||||
this->threadNumber);
|
||||
}
|
||||
|
||||
/** Sets a misc. register. */
|
||||
void setMiscRegOperand(const StaticInst * si, int idx, const MiscReg &val)
|
||||
{
|
||||
this->instResult.integer = val;
|
||||
return this->cpu->setMiscReg(
|
||||
si->destRegIdx(idx) - TheISA::Ctrl_Base_DepTag,
|
||||
val, this->threadNumber);
|
||||
}
|
||||
|
||||
/** Sets a misc. register, including any side-effects the write
|
||||
* might have as defined by the architecture.
|
||||
*/
|
||||
void setMiscRegOperandWithEffect(const StaticInst *si, int idx,
|
||||
const MiscReg &val)
|
||||
{
|
||||
return this->cpu->setMiscRegWithEffect(
|
||||
si->destRegIdx(idx) - TheISA::Ctrl_Base_DepTag,
|
||||
val, this->threadNumber);
|
||||
}
|
||||
|
||||
#if FULL_SYSTEM
|
||||
/** Calls hardware return from error interrupt. */
|
||||
Fault hwrei();
|
||||
|
|
Loading…
Reference in a new issue