diff -r b141185f34e2 -r e8ea9acd1fd4 src/arch/isa_parser.py --- a/src/arch/isa_parser.py Wed Feb 02 23:37:29 2011 -0800 +++ b/src/arch/isa_parser.py Thu Feb 03 03:57:27 2011 -0800 @@ -36,7 +36,7 @@ from m5.util.grammar import Grammar -debug=False +debug=True ################### # Utility functions diff -r b141185f34e2 -r e8ea9acd1fd4 src/arch/x86/isa/microops/ldstop.isa --- a/src/arch/x86/isa/microops/ldstop.isa Wed Feb 02 23:37:29 2011 -0800 +++ b/src/arch/x86/isa/microops/ldstop.isa Thu Feb 03 03:57:27 2011 -0800 @@ -301,6 +301,46 @@ "dataSize" : self.dataSize, "addressSize" : self.addressSize, "memFlags" : self.memFlags} return allocator + + class BigLdStOp(X86Microop): + def __init__(self, data, segment, addr, disp, + dataSize, addressSize, baseFlags, atCPL0, prefetch): + self.data = data + [self.scale, self.index, self.base] = addr + self.disp = disp + self.segment = segment + self.dataSize = dataSize + self.addressSize = addressSize + self.memFlags = baseFlags + if atCPL0: + self.memFlags += " | (CPL0FlagBit << FlagShift)" + if prefetch: + self.memFlags += " | Request::PREFETCH" + self.memFlags += " | (machInst.legacy.addr ? " + \ + "(AddrSizeFlagBit << FlagShift) : 0)" + + def getAllocator(self, microFlags): + allocString = ''' + (%(dataSize)s >= 4) ? + (StaticInstPtr)(new %(class_name)sBig(machInst, + macrocodeBlock, %(flags)s, %(scale)s, %(index)s, + %(base)s, %(disp)s, %(segment)s, %(data)s, + %(dataSize)s, %(addressSize)s, %(memFlags)s)) : + (StaticInstPtr)(new %(class_name)s(machInst, + macrocodeBlock, %(flags)s, %(scale)s, %(index)s, + %(base)s, %(disp)s, %(segment)s, %(data)s, + %(dataSize)s, %(addressSize)s, %(memFlags)s)) + ''' + allocator = allocString % { + "class_name" : self.className, + "flags" : self.microFlagsText(microFlags), + "scale" : self.scale, "index" : self.index, + "base" : self.base, + "disp" : self.disp, + "segment" : self.segment, "data" : self.data, + "dataSize" : self.dataSize, "addressSize" : self.addressSize, + "memFlags" : self.memFlags} + return allocator }}; let {{ @@ -315,7 +355,8 @@ EA = bits(SegBase + scale * Index + Base + disp, addressSize * 8 - 1, 0); ''' - def defineMicroLoadOp(mnemonic, code, mem_flags="0"): + def defineMicroLoadOp(mnemonic, code, bigCode='', + mem_flags="0", big=True): global header_output global decoder_output global exec_output @@ -324,16 +365,22 @@ name = mnemonic.lower() # Build up the all register version of this micro op - iop = InstObjParams(name, Name, 'X86ISA::LdStOp', - {"code": code, - "ea_code": calculateEA}) - header_output += MicroLdStOpDeclare.subst(iop) - decoder_output += MicroLdStOpConstructor.subst(iop) - exec_output += MicroLoadExecute.subst(iop) - exec_output += MicroLoadInitiateAcc.subst(iop) - exec_output += MicroLoadCompleteAcc.subst(iop) + iops = [InstObjParams(name, Name, 'X86ISA::LdStOp', + {"code": code, "ea_code": calculateEA})] + if big: + iops += [InstObjParams(name, Name + "Big", 'X86ISA::LdStOp', + {"code": bigCode, "ea_code": calculateEA})] + for iop in iops: + header_output += MicroLdStOpDeclare.subst(iop) + decoder_output += MicroLdStOpConstructor.subst(iop) + exec_output += MicroLoadExecute.subst(iop) + exec_output += MicroLoadInitiateAcc.subst(iop) + exec_output += MicroLoadCompleteAcc.subst(iop) - class LoadOp(LdStOp): + base = LdStOp + if big: + base = BigLdStOp + class LoadOp(base): def __init__(self, data, segment, addr, disp = 0, dataSize="env.dataSize", addressSize="env.addressSize", @@ -346,12 +393,15 @@ microopClasses[name] = LoadOp - defineMicroLoadOp('Ld', 'Data = merge(Data, Mem, dataSize);') + defineMicroLoadOp('Ld', 'Data = merge(Data, Mem, dataSize);', + 'Data = Mem & mask(dataSize * 8);') defineMicroLoadOp('Ldst', 'Data = merge(Data, Mem, dataSize);', - '(StoreCheck << FlagShift)') + 'Data = Mem & mask(dataSize * 8);', + '(StoreCheck << FlagShift)') defineMicroLoadOp('Ldstl', 'Data = merge(Data, Mem, dataSize);', - '(StoreCheck << FlagShift) | Request::LOCKED') - defineMicroLoadOp('Ldfp', 'FpData.uqw = Mem;') + 'Data = Mem & mask(dataSize * 8);', + '(StoreCheck << FlagShift) | Request::LOCKED') + defineMicroLoadOp('Ldfp', 'FpData.uqw = Mem;', big = False) def defineMicroStoreOp(mnemonic, code, \ postCode="", completeCode="", mem_flags="0"): diff -r b141185f34e2 -r e8ea9acd1fd4 src/arch/x86/isa/microops/limmop.isa --- a/src/arch/x86/isa/microops/limmop.isa Wed Feb 02 23:37:29 2011 -0800 +++ b/src/arch/x86/isa/microops/limmop.isa Thu Feb 03 03:57:27 2011 -0800 @@ -114,8 +114,16 @@ self.dataSize = dataSize def getAllocator(self, microFlags): - allocator = '''new %(class_name)s(machInst, macrocodeBlock, - %(flags)s, %(dest)s, %(imm)s, %(dataSize)s)''' % { + allocString = ''' + (%(dataSize)s >= 4) ? + (StaticInstPtr)(new %(class_name)sBig(machInst, + macrocodeBlock, %(flags)s, %(dest)s, %(imm)s, + %(dataSize)s)) : + (StaticInstPtr)(new %(class_name)s(machInst, + macrocodeBlock, %(flags)s, %(dest)s, %(imm)s, + %(dataSize)s)) + ''' + allocator = allocString % { "class_name" : self.className, "mnemonic" : self.mnemonic, "flags" : self.microFlagsText(microFlags), @@ -152,12 +160,15 @@ let {{ # Build up the all register version of this micro op - iop = InstObjParams("limm", "Limm", 'X86MicroopBase', - {"code" : "DestReg = merge(DestReg, imm, dataSize);"}) - header_output += MicroLimmOpDeclare.subst(iop) - decoder_output += MicroLimmOpConstructor.subst(iop) - decoder_output += MicroLimmOpDisassembly.subst(iop) - exec_output += MicroLimmOpExecute.subst(iop) + iops = [InstObjParams("limm", "Limm", 'X86MicroopBase', + {"code" : "DestReg = merge(DestReg, imm, dataSize);"}), + InstObjParams("limm", "LimmBig", 'X86MicroopBase', + {"code" : "DestReg = imm & mask(dataSize * 8);"})] + for iop in iops: + header_output += MicroLimmOpDeclare.subst(iop) + decoder_output += MicroLimmOpConstructor.subst(iop) + decoder_output += MicroLimmOpDisassembly.subst(iop) + exec_output += MicroLimmOpExecute.subst(iop) iop = InstObjParams("lfpimm", "Lfpimm", 'X86MicroopBase', {"code" : "FpDestReg.uqw = imm"}) diff -r b141185f34e2 -r e8ea9acd1fd4 src/arch/x86/isa/microops/regop.isa --- a/src/arch/x86/isa/microops/regop.isa Wed Feb 02 23:37:29 2011 -0800 +++ b/src/arch/x86/isa/microops/regop.isa Thu Feb 03 03:57:27 2011 -0800 @@ -223,7 +223,7 @@ class RegOpMeta(type): def buildCppClasses(self, name, Name, suffix, \ - code, flag_code, cond_check, else_code): + code, bigCode, flag_code, cond_check, else_code): # Globals to stick the output in global header_output @@ -232,11 +232,12 @@ # Stick all the code together so it can be searched at once allCode = "|".join((code, flag_code, cond_check, else_code)) + allBigCode = "|".join((bigCode, flag_code, cond_check, else_code)) # If op2 is used anywhere, make register and immediate versions # of this code. matcher = re.compile("(?s?)op2(?P\\.\\w+)?") - match = matcher.search(allCode) + match = matcher.search(allCode + allBigCode) if match: typeQual = "" if match.group("typeQual"): @@ -244,12 +245,14 @@ src2_name = "%spsrc2%s" % (match.group("prefix"), typeQual) self.buildCppClasses(name, Name, suffix, matcher.sub(src2_name, code), + matcher.sub(src2_name, bigCode), matcher.sub(src2_name, flag_code), matcher.sub(src2_name, cond_check), matcher.sub(src2_name, else_code)) imm_name = "%simm8" % match.group("prefix") self.buildCppClasses(name + "i", Name, suffix + "Imm", matcher.sub(imm_name, code), + matcher.sub(imm_name, bigCode), matcher.sub(imm_name, flag_code), matcher.sub(imm_name, cond_check), matcher.sub(imm_name, else_code)) @@ -259,27 +262,32 @@ # a version without it and fix up this version to use it. if flag_code != "" or cond_check != "true": self.buildCppClasses(name, Name, suffix, - code, "", "true", else_code) + code, bigCode, "", "true", else_code) suffix = "Flags" + suffix # If psrc1 or psrc2 is used, we need to actually insert code to # compute it. - matcher = re.compile("(?= 4) ? + (StaticInstPtr)(new %(class_name)sBig(machInst, + macrocodeBlock, %(flags)s, %(src1)s, %(op2)s, + %(dest)s, %(dataSize)s, %(ext)s)) : + (StaticInstPtr)(new %(class_name)s(machInst, + macrocodeBlock, %(flags)s, %(src1)s, %(op2)s, + %(dest)s, %(dataSize)s, %(ext)s)) + ''' + allocator = allocString % { + "class_name" : className, + "flags" : self.microFlagsText(microFlags), + "src1" : self.src1, "op2" : self.op2, + "dest" : self.dest, + "dataSize" : self.dataSize, + "ext" : self.ext} + return allocator + else: + className = self.className + if self.mnemonic == self.base_mnemonic + 'i': + className += "Imm" + allocator = '''new %(class_name)s(machInst, macrocodeBlock, + %(flags)s, %(src1)s, %(op2)s, %(dest)s, + %(dataSize)s, %(ext)s)''' % { + "class_name" : className, + "flags" : self.microFlagsText(microFlags), + "src1" : self.src1, "op2" : self.op2, + "dest" : self.dest, + "dataSize" : self.dataSize, + "ext" : self.ext} + return allocator class LogicRegOp(RegOp): abstract = True @@ -419,30 +458,43 @@ class Add(FlagRegOp): code = 'DestReg = merge(DestReg, psrc1 + op2, dataSize);' + bigCode = 'DestReg = (psrc1 + op2) & mask(dataSize * 8);' class Or(LogicRegOp): code = 'DestReg = merge(DestReg, psrc1 | op2, dataSize);' + bigCode = 'DestReg = (psrc1 | op2) & mask(dataSize * 8);' class Adc(FlagRegOp): code = ''' CCFlagBits flags = ccFlagBits; DestReg = merge(DestReg, psrc1 + op2 + flags.cf, dataSize); ''' + bigCode = ''' + CCFlagBits flags = ccFlagBits; + DestReg = (psrc1 + op2 + flags.cf) & mask(dataSize * 8); + ''' class Sbb(SubRegOp): code = ''' CCFlagBits flags = ccFlagBits; DestReg = merge(DestReg, psrc1 - op2 - flags.cf, dataSize); ''' + bigCode = ''' + CCFlagBits flags = ccFlagBits; + DestReg = (psrc1 - op2 - flags.cf) & mask(dataSize * 8); + ''' class And(LogicRegOp): code = 'DestReg = merge(DestReg, psrc1 & op2, dataSize)' + bigCode = 'DestReg = (psrc1 & op2) & mask(dataSize * 8)' class Sub(SubRegOp): code = 'DestReg = merge(DestReg, psrc1 - op2, dataSize)' + bigCode = 'DestReg = (psrc1 - op2) & mask(dataSize * 8)' class Xor(LogicRegOp): code = 'DestReg = merge(DestReg, psrc1 ^ op2, dataSize)' + bigCode = 'DestReg = (psrc1 ^ op2) & mask(dataSize * 8)' class Mul1s(WrRegOp): code = ''' @@ -495,6 +547,7 @@ class Mulel(RdRegOp): code = 'DestReg = merge(SrcReg1, ProdLow, dataSize);' + bigCode = 'DestReg = ProdLow & mask(dataSize * 8);' class Muleh(RdRegOp): def __init__(self, dest, src1=None, flags=None, dataSize="env.dataSize"): @@ -503,6 +556,7 @@ super(RdRegOp, self).__init__(dest, src1, \ "InstRegIndex(NUM_INTREGS)", flags, dataSize) code = 'DestReg = merge(SrcReg1, ProdHi, dataSize);' + code = 'DestReg = ProdHi & mask(dataSize * 8);' # One or two bit divide class Div1(WrRegOp): @@ -530,7 +584,7 @@ # Step divide class Div2(RegOp): - code = ''' + divCode = ''' uint64_t dividend = Remainder; uint64_t divisor = Divisor; uint64_t quotient = Quotient; @@ -577,11 +631,13 @@ } } //Keep track of how many bits there are still to pull in. - DestReg = merge(DestReg, remaining, dataSize); + %s //Record the final results Remainder = remainder; Quotient = quotient; ''' + code = divCode % "DestReg = merge(DestReg, remaining, dataSize);" + bigCode = divCode % "DestReg = remaining & mask(dataSize * 8);" flag_code = ''' if (remaining == 0) ccFlagBits = ccFlagBits | (ext & EZFBit); @@ -591,9 +647,11 @@ class Divq(RdRegOp): code = 'DestReg = merge(SrcReg1, Quotient, dataSize);' + bigCode = 'DestReg = Quotient & mask(dataSize);' class Divr(RdRegOp): code = 'DestReg = merge(SrcReg1, Remainder, dataSize);' + bigCode = 'DestReg = Remainder & mask(dataSize * 8);' class Mov(CondRegOp): code = 'DestReg = merge(SrcReg1, op2, dataSize)' @@ -606,6 +664,10 @@ uint8_t shiftAmt = (op2 & ((dataSize == 8) ? mask(6) : mask(5))); DestReg = merge(DestReg, psrc1 << shiftAmt, dataSize); ''' + bigCode = ''' + uint8_t shiftAmt = (op2 & ((dataSize == 8) ? mask(6) : mask(5))); + DestReg = (psrc1 << shiftAmt) & mask(dataSize * 8); + ''' flag_code = ''' // If the shift amount is zero, no flags should be modified. if (shiftAmt) { @@ -631,14 +693,19 @@ ''' class Srl(RegOp): + # Because what happens to the bits shift -in- on a right shift + # is not defined in the C/C++ standard, we have to mask them out + # to be sure they're zero. code = ''' uint8_t shiftAmt = (op2 & ((dataSize == 8) ? mask(6) : mask(5))); - // Because what happens to the bits shift -in- on a right shift - // is not defined in the C/C++ standard, we have to mask them out - // to be sure they're zero. uint64_t logicalMask = mask(dataSize * 8 - shiftAmt); DestReg = merge(DestReg, (psrc1 >> shiftAmt) & logicalMask, dataSize); ''' + bigCode = ''' + uint8_t shiftAmt = (op2 & ((dataSize == 8) ? mask(6) : mask(5))); + uint64_t logicalMask = mask(dataSize * 8 - shiftAmt); + DestReg = (psrc1 >> shiftAmt) & logicalMask; + ''' flag_code = ''' // If the shift amount is zero, no flags should be modified. if (shiftAmt) { @@ -661,15 +728,21 @@ ''' class Sra(RegOp): + # Because what happens to the bits shift -in- on a right shift + # is not defined in the C/C++ standard, we have to sign extend + # them manually to be sure. code = ''' uint8_t shiftAmt = (op2 & ((dataSize == 8) ? mask(6) : mask(5))); - // Because what happens to the bits shift -in- on a right shift - // is not defined in the C/C++ standard, we have to sign extend - // them manually to be sure. uint64_t arithMask = (shiftAmt == 0) ? 0 : -bits(psrc1, dataSize * 8 - 1) << (dataSize * 8 - shiftAmt); DestReg = merge(DestReg, (psrc1 >> shiftAmt) | arithMask, dataSize); ''' + bigCode = ''' + uint8_t shiftAmt = (op2 & ((dataSize == 8) ? mask(6) : mask(5))); + uint64_t arithMask = (shiftAmt == 0) ? 0 : + -bits(psrc1, dataSize * 8 - 1) << (dataSize * 8 - shiftAmt); + DestReg = ((psrc1 >> shiftAmt) | arithMask) & mask(dataSize * 8); + ''' flag_code = ''' // If the shift amount is zero, no flags should be modified. if (shiftAmt) { @@ -694,13 +767,11 @@ uint8_t shiftAmt = (op2 & ((dataSize == 8) ? mask(6) : mask(5))); uint8_t realShiftAmt = shiftAmt % (dataSize * 8); - if(realShiftAmt) - { + if (realShiftAmt) { uint64_t top = psrc1 << (dataSize * 8 - realShiftAmt); uint64_t bottom = bits(psrc1, dataSize * 8, realShiftAmt); DestReg = merge(DestReg, top | bottom, dataSize); - } - else + } else DestReg = merge(DestReg, DestReg, dataSize); ''' flag_code = ''' @@ -729,16 +800,14 @@ uint8_t shiftAmt = (op2 & ((dataSize == 8) ? mask(6) : mask(5))); uint8_t realShiftAmt = shiftAmt % (dataSize * 8 + 1); - if(realShiftAmt) - { + if (realShiftAmt) { CCFlagBits flags = ccFlagBits; uint64_t top = flags.cf << (dataSize * 8 - realShiftAmt); if (realShiftAmt > 1) top |= psrc1 << (dataSize * 8 - realShiftAmt + 1); uint64_t bottom = bits(psrc1, dataSize * 8 - 1, realShiftAmt); DestReg = merge(DestReg, top | bottom, dataSize); - } - else + } else DestReg = merge(DestReg, DestReg, dataSize); ''' flag_code = ''' @@ -770,14 +839,12 @@ uint8_t shiftAmt = (op2 & ((dataSize == 8) ? mask(6) : mask(5))); uint8_t realShiftAmt = shiftAmt % (dataSize * 8); - if(realShiftAmt) - { + if (realShiftAmt) { uint64_t top = psrc1 << realShiftAmt; uint64_t bottom = bits(psrc1, dataSize * 8 - 1, dataSize * 8 - realShiftAmt); DestReg = merge(DestReg, top | bottom, dataSize); - } - else + } else DestReg = merge(DestReg, DestReg, dataSize); ''' flag_code = ''' @@ -806,8 +873,7 @@ uint8_t shiftAmt = (op2 & ((dataSize == 8) ? mask(6) : mask(5))); uint8_t realShiftAmt = shiftAmt % (dataSize * 8 + 1); - if(realShiftAmt) - { + if (realShiftAmt) { CCFlagBits flags = ccFlagBits; uint64_t top = psrc1 << realShiftAmt; uint64_t bottom = flags.cf << (realShiftAmt - 1); @@ -816,8 +882,7 @@ bits(psrc1, dataSize * 8 - 1, dataSize * 8 - realShiftAmt + 1); DestReg = merge(DestReg, top | bottom, dataSize); - } - else + } else DestReg = merge(DestReg, DestReg, dataSize); ''' flag_code = ''' @@ -843,10 +908,10 @@ ''' class Sld(RegOp): - code = ''' + sldCode = ''' uint8_t shiftAmt = (op2 & ((dataSize == 8) ? mask(6) : mask(5))); uint8_t dataBits = dataSize * 8; - uint8_t realShiftAmt = shiftAmt % (2 * dataBits); + uint8_t realShiftAmt = shiftAmt %% (2 * dataBits); uint64_t result; if (realShiftAmt == 0) { result = psrc1; @@ -857,8 +922,10 @@ result = (DoubleBits << (realShiftAmt - dataBits)) | (psrc1 >> (2 * dataBits - realShiftAmt)); } - DestReg = merge(DestReg, result, dataSize); + %s ''' + code = sldCode % "DestReg = merge(DestReg, result, dataSize);" + bigCode = sldCode % "DestReg = result & mask(dataSize * 8);" flag_code = ''' // If the shift amount is zero, no flags should be modified. if (shiftAmt) { @@ -889,10 +956,10 @@ ''' class Srd(RegOp): - code = ''' + srdCode = ''' uint8_t shiftAmt = (op2 & ((dataSize == 8) ? mask(6) : mask(5))); uint8_t dataBits = dataSize * 8; - uint8_t realShiftAmt = shiftAmt % (2 * dataBits); + uint8_t realShiftAmt = shiftAmt %% (2 * dataBits); uint64_t result; if (realShiftAmt == 0) { result = psrc1; @@ -909,8 +976,10 @@ logicalMask) | (psrc1 << (2 * dataBits - realShiftAmt)); } - DestReg = merge(DestReg, result, dataSize); + %s ''' + code = srdCode % "DestReg = merge(DestReg, result, dataSize);" + bigCode = srdCode % "DestReg = result & mask(dataSize * 8);" flag_code = ''' // If the shift amount is zero, no flags should be modified. if (shiftAmt) { @@ -976,6 +1045,12 @@ ccFlagBits = (flag == 0) ? (ccFlagBits | EZFBit) : (ccFlagBits & ~EZFBit); ''' + bigCode = ''' + int flag = bits(ccFlagBits, imm8); + DestReg = flag & mask(dataSize * 8); + ccFlagBits = (flag == 0) ? (ccFlagBits | EZFBit) : + (ccFlagBits & ~EZFBit); + ''' def __init__(self, dest, imm, flags=None, \ dataSize="env.dataSize"): super(Ruflag, self).__init__(dest, \ @@ -990,6 +1065,14 @@ ccFlagBits = (flag == 0) ? (ccFlagBits | EZFBit) : (ccFlagBits & ~EZFBit); ''' + bigCode = ''' + MiscReg flagMask = 0x3F7FDD5; + MiscReg flags = (nccFlagBits | ccFlagBits) & flagMask; + int flag = bits(flags, imm8); + DestReg = flag & mask(dataSize * 8); + ccFlagBits = (flag == 0) ? (ccFlagBits | EZFBit) : + (ccFlagBits & ~EZFBit); + ''' def __init__(self, dest, imm, flags=None, \ dataSize="env.dataSize"): super(Rflag, self).__init__(dest, \ @@ -1005,6 +1088,15 @@ val = sign_bit ? (val | ~maskVal) : (val & maskVal); DestReg = merge(DestReg, val, dataSize); ''' + bigCode = ''' + IntReg val = psrc1; + // Mask the bit position so that it wraps. + int bitPos = op2 & (dataSize * 8 - 1); + int sign_bit = bits(val, bitPos, bitPos); + uint64_t maskVal = mask(bitPos+1); + val = sign_bit ? (val | ~maskVal) : (val & maskVal); + DestReg = val & mask(dataSize * 8); + ''' flag_code = ''' if (!sign_bit) ccFlagBits = ccFlagBits & @@ -1016,12 +1108,13 @@ class Zext(RegOp): code = 'DestReg = merge(DestReg, bits(psrc1, op2, 0), dataSize);' + bigCode = 'DestReg = bits(psrc1, op2, 0) & mask(dataSize * 8);' class Rddr(RegOp): def __init__(self, dest, src1, flags=None, dataSize="env.dataSize"): super(Rddr, self).__init__(dest, \ src1, "InstRegIndex(NUM_INTREGS)", flags, dataSize) - code = ''' + rdrCode = ''' CR4 cr4 = CR4Op; DR7 dr7 = DR7Op; if ((cr4.de == 1 && (src1 == 4 || src1 == 5)) || src1 >= 8) { @@ -1029,9 +1122,11 @@ } else if (dr7.gd) { fault = new DebugException(); } else { - DestReg = merge(DestReg, DebugSrc1, dataSize); + %s } ''' + code = rdrCode % "DestReg = merge(DestReg, DebugSrc1, dataSize);" + bigCode = rdrCode % "DestReg = DebugSrc1 & mask(dataSize * 8);" class Wrdr(RegOp): def __init__(self, dest, src1, flags=None, dataSize="env.dataSize"): @@ -1056,13 +1151,15 @@ def __init__(self, dest, src1, flags=None, dataSize="env.dataSize"): super(Rdcr, self).__init__(dest, \ src1, "InstRegIndex(NUM_INTREGS)", flags, dataSize) - code = ''' + rdcrCode = ''' if (src1 == 1 || (src1 > 4 && src1 < 8) || (src1 > 8)) { fault = new InvalidOpcode(); } else { - DestReg = merge(DestReg, ControlSrc1, dataSize); + %s } ''' + code = rdcrCode % "DestReg = merge(DestReg, ControlSrc1, dataSize);" + bigCode = rdcrCode % "DestReg = ControlSrc1 & mask(dataSize * 8);" class Wrcr(RegOp): def __init__(self, dest, src1, flags=None, dataSize="env.dataSize"): @@ -1144,24 +1241,20 @@ ''' class Rdbase(SegOp): - code = ''' - DestReg = merge(DestReg, SegBaseSrc1, dataSize); - ''' + code = 'DestReg = merge(DestReg, SegBaseSrc1, dataSize);' + bigCode = 'DestReg = SegBaseSrc1 & mask(dataSize * 8);' class Rdlimit(SegOp): - code = ''' - DestReg = merge(DestReg, SegLimitSrc1, dataSize); - ''' + code = 'DestReg = merge(DestReg, SegLimitSrc1, dataSize);' + bigCode = 'DestReg = SegLimitSrc1 & mask(dataSize * 8);' class RdAttr(SegOp): - code = ''' - DestReg = merge(DestReg, SegAttrSrc1, dataSize); - ''' + code = 'DestReg = merge(DestReg, SegAttrSrc1, dataSize);' + bigCode = 'DestReg = SegAttrSrc1 & mask(dataSize * 8);' class Rdsel(SegOp): - code = ''' - DestReg = merge(DestReg, SegSelSrc1, dataSize); - ''' + code = 'DestReg = merge(DestReg, SegSelSrc1, dataSize);' + bigCode = 'DestReg = SegSelSrc1 & mask(dataSize * 8);' class Rdval(RegOp): def __init__(self, dest, src1, flags=None, dataSize="env.dataSize"):