| // Copyright (c) 2007-2008 The Hewlett-Packard Development Company |
| // All rights reserved. |
| // |
| // The license below extends only to copyright in the software and shall |
| // not be construed as granting a license to any other intellectual |
| // property including but not limited to intellectual property relating |
| // to a hardware implementation of the functionality of the software |
| // licensed hereunder. You may use the software subject to the license |
| // terms below provided that you ensure that this notice is replicated |
| // unmodified and in its entirety in all distributions of the software, |
| // modified or unmodified, in source code or in binary form. |
| // |
| // Copyright (c) 2008 The Regents of The University of Michigan |
| // All rights reserved. |
| // |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are |
| // met: redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer; |
| // redistributions in binary form must reproduce the above copyright |
| // notice, this list of conditions and the following disclaimer in the |
| // documentation and/or other materials provided with the distribution; |
| // neither the name of the copyright holders nor the names of its |
| // contributors may be used to endorse or promote products derived from |
| // this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| // |
| // Authors: Gabe Black |
| |
| ////////////////////////////////////////////////////////////////////////// |
| // |
| // LdStOp Microop templates |
| // |
| ////////////////////////////////////////////////////////////////////////// |
| |
| // LEA template |
| |
| def template MicroLeaExecute {{ |
| Fault %(class_name)s::execute(CPU_EXEC_CONTEXT *xc, |
| Trace::InstRecord *traceData) const |
| { |
| Fault fault = NoFault; |
| Addr EA; |
| |
| %(op_decl)s; |
| %(op_rd)s; |
| %(ea_code)s; |
| DPRINTF(X86, "%s : %s: The address is %#x\n", instMnem, mnemonic, EA); |
| |
| %(code)s; |
| if(fault == NoFault) |
| { |
| %(op_wb)s; |
| } |
| |
| return fault; |
| } |
| }}; |
| |
| def template MicroLeaDeclare {{ |
| class %(class_name)s : public %(base_class)s |
| { |
| public: |
| %(class_name)s(ExtMachInst _machInst, |
| const char * instMnem, uint64_t setFlags, |
| uint8_t _scale, InstRegIndex _index, InstRegIndex _base, |
| uint64_t _disp, InstRegIndex _segment, |
| InstRegIndex _data, |
| uint8_t _dataSize, uint8_t _addressSize, |
| Request::FlagsType _memFlags); |
| |
| %(BasicExecDeclare)s |
| }; |
| }}; |
| |
| // Load templates |
| |
| def template MicroLoadExecute {{ |
| Fault %(class_name)s::execute(CPU_EXEC_CONTEXT *xc, |
| Trace::InstRecord *traceData) const |
| { |
| Fault fault = NoFault; |
| Addr EA; |
| |
| %(op_decl)s; |
| %(op_rd)s; |
| %(ea_code)s; |
| DPRINTF(X86, "%s : %s: The address is %#x\n", instMnem, mnemonic, EA); |
| |
| fault = readMemAtomic(xc, traceData, EA, Mem, dataSize, memFlags); |
| |
| if (fault == NoFault) { |
| %(code)s; |
| } else if (memFlags & Request::PREFETCH) { |
| // For prefetches, ignore any faults/exceptions. |
| return NoFault; |
| } |
| if(fault == NoFault) |
| { |
| %(op_wb)s; |
| } |
| |
| return fault; |
| } |
| }}; |
| |
| def template MicroLoadInitiateAcc {{ |
| Fault %(class_name)s::initiateAcc(CPU_EXEC_CONTEXT * xc, |
| Trace::InstRecord * traceData) const |
| { |
| Fault fault = NoFault; |
| Addr EA; |
| |
| %(op_decl)s; |
| %(op_rd)s; |
| %(ea_code)s; |
| DPRINTF(X86, "%s : %s: The address is %#x\n", instMnem, mnemonic, EA); |
| |
| fault = readMemTiming(xc, traceData, EA, Mem, dataSize, memFlags); |
| |
| return fault; |
| } |
| }}; |
| |
| def template MicroLoadCompleteAcc {{ |
| Fault %(class_name)s::completeAcc(PacketPtr pkt, |
| CPU_EXEC_CONTEXT * xc, |
| Trace::InstRecord * traceData) const |
| { |
| Fault fault = NoFault; |
| |
| %(op_decl)s; |
| %(op_rd)s; |
| |
| Mem = getMem(pkt, dataSize, traceData); |
| |
| %(code)s; |
| |
| if(fault == NoFault) |
| { |
| %(op_wb)s; |
| } |
| |
| return fault; |
| } |
| }}; |
| |
| // Store templates |
| |
| def template MicroStoreExecute {{ |
| Fault %(class_name)s::execute(CPU_EXEC_CONTEXT * xc, |
| Trace::InstRecord *traceData) const |
| { |
| Fault fault = NoFault; |
| |
| Addr EA; |
| %(op_decl)s; |
| %(op_rd)s; |
| %(ea_code)s; |
| DPRINTF(X86, "%s : %s: The address is %#x\n", instMnem, mnemonic, EA); |
| |
| %(code)s; |
| |
| if(fault == NoFault) |
| { |
| fault = writeMemAtomic(xc, traceData, Mem, dataSize, EA, |
| memFlags, NULL); |
| if(fault == NoFault) |
| { |
| %(op_wb)s; |
| } |
| } |
| |
| return fault; |
| } |
| }}; |
| |
| def template MicroStoreInitiateAcc {{ |
| Fault %(class_name)s::initiateAcc(CPU_EXEC_CONTEXT * xc, |
| Trace::InstRecord * traceData) const |
| { |
| Fault fault = NoFault; |
| |
| Addr EA; |
| %(op_decl)s; |
| %(op_rd)s; |
| %(ea_code)s; |
| DPRINTF(X86, "%s : %s: The address is %#x\n", instMnem, mnemonic, EA); |
| |
| %(code)s; |
| |
| if(fault == NoFault) |
| { |
| fault = writeMemTiming(xc, traceData, Mem, dataSize, EA, |
| memFlags, NULL); |
| } |
| return fault; |
| } |
| }}; |
| |
| def template MicroStoreCompleteAcc {{ |
| Fault %(class_name)s::completeAcc(PacketPtr pkt, |
| CPU_EXEC_CONTEXT * xc, Trace::InstRecord * traceData) const |
| { |
| %(op_decl)s; |
| %(op_rd)s; |
| %(complete_code)s; |
| %(op_wb)s; |
| return NoFault; |
| } |
| }}; |
| |
| // Common templates |
| |
| //This delcares the initiateAcc function in memory operations |
| def template InitiateAccDeclare {{ |
| Fault initiateAcc(%(CPU_exec_context)s *, Trace::InstRecord *) const; |
| }}; |
| |
| //This declares the completeAcc function in memory operations |
| def template CompleteAccDeclare {{ |
| Fault completeAcc(PacketPtr, %(CPU_exec_context)s *, Trace::InstRecord *) const; |
| }}; |
| |
| def template MicroLdStOpDeclare {{ |
| class %(class_name)s : public %(base_class)s |
| { |
| public: |
| %(class_name)s(ExtMachInst _machInst, |
| const char * instMnem, uint64_t setFlags, |
| uint8_t _scale, InstRegIndex _index, InstRegIndex _base, |
| uint64_t _disp, InstRegIndex _segment, |
| InstRegIndex _data, |
| uint8_t _dataSize, uint8_t _addressSize, |
| Request::FlagsType _memFlags); |
| |
| %(BasicExecDeclare)s |
| |
| %(InitiateAccDeclare)s |
| |
| %(CompleteAccDeclare)s |
| }; |
| }}; |
| |
| def template MicroLdStOpConstructor {{ |
| %(class_name)s::%(class_name)s( |
| ExtMachInst machInst, const char * instMnem, uint64_t setFlags, |
| uint8_t _scale, InstRegIndex _index, InstRegIndex _base, |
| uint64_t _disp, InstRegIndex _segment, |
| InstRegIndex _data, |
| uint8_t _dataSize, uint8_t _addressSize, |
| Request::FlagsType _memFlags) : |
| %(base_class)s(machInst, "%(mnemonic)s", instMnem, setFlags, |
| _scale, _index, _base, |
| _disp, _segment, _data, |
| _dataSize, _addressSize, _memFlags, %(op_class)s) |
| { |
| %(constructor)s; |
| } |
| }}; |
| |
| let {{ |
| class LdStOp(X86Microop): |
| def __init__(self, data, segment, addr, disp, |
| dataSize, addressSize, baseFlags, atCPL0, prefetch, nonSpec): |
| 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)" |
| self.instFlags = "" |
| if prefetch: |
| self.memFlags += " | Request::PREFETCH" |
| self.instFlags += " | (1ULL << StaticInst::IsDataPrefetch)" |
| if nonSpec: |
| self.instFlags += " | (1ULL << StaticInst::IsNonSpeculative)" |
| self.memFlags += " | (machInst.legacy.addr ? " + \ |
| "(AddrSizeFlagBit << FlagShift) : 0)" |
| |
| def getAllocator(self, microFlags): |
| allocator = '''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)''' % { |
| "class_name" : self.className, |
| "flags" : self.microFlagsText(microFlags) + self.instFlags, |
| "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 |
| |
| class BigLdStOp(X86Microop): |
| def __init__(self, data, segment, addr, disp, |
| dataSize, addressSize, baseFlags, atCPL0, prefetch, nonSpec): |
| 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)" |
| self.instFlags = "" |
| if prefetch: |
| self.memFlags += " | Request::PREFETCH" |
| self.instFlags += " | (1ULL << StaticInst::IsDataPrefetch)" |
| if nonSpec: |
| self.instFlags += " | (1ULL << StaticInst::IsNonSpeculative)" |
| 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) + self.instFlags, |
| "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 {{ |
| |
| # Make these empty strings so that concatenating onto |
| # them will always work. |
| header_output = "" |
| decoder_output = "" |
| exec_output = "" |
| |
| calculateEA = ''' |
| EA = SegBase + bits(scale * Index + Base + disp, addressSize * 8 - 1, 0); |
| ''' |
| |
| def defineMicroLoadOp(mnemonic, code, bigCode='', |
| mem_flags="0", big=True): |
| global header_output |
| global decoder_output |
| global exec_output |
| global microopClasses |
| Name = mnemonic |
| name = mnemonic.lower() |
| |
| # Build up the all register version of this micro op |
| 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) |
| |
| base = LdStOp |
| if big: |
| base = BigLdStOp |
| class LoadOp(base): |
| def __init__(self, data, segment, addr, disp = 0, |
| dataSize="env.dataSize", |
| addressSize="env.addressSize", |
| atCPL0=False, prefetch=False, nonSpec=False): |
| super(LoadOp, self).__init__(data, segment, addr, |
| disp, dataSize, addressSize, mem_flags, |
| atCPL0, prefetch, nonSpec) |
| self.className = Name |
| self.mnemonic = name |
| |
| microopClasses[name] = LoadOp |
| |
| defineMicroLoadOp('Ld', 'Data = merge(Data, Mem, dataSize);', |
| 'Data = Mem & mask(dataSize * 8);') |
| defineMicroLoadOp('Ldst', 'Data = merge(Data, Mem, dataSize);', |
| 'Data = Mem & mask(dataSize * 8);', |
| '(StoreCheck << FlagShift)') |
| defineMicroLoadOp('Ldstl', 'Data = merge(Data, Mem, dataSize);', |
| 'Data = Mem & mask(dataSize * 8);', |
| '(StoreCheck << FlagShift) | Request::LOCKED_RMW') |
| |
| defineMicroLoadOp('Ldfp', code='FpData_uqw = Mem', big = False) |
| |
| defineMicroLoadOp('Ldfp87', code=''' |
| switch (dataSize) |
| { |
| case 4: |
| FpData_df = *(float *)&Mem; |
| break; |
| case 8: |
| FpData_df = *(double *)&Mem; |
| break; |
| default: |
| panic("Unhandled data size in LdFp87.\\n"); |
| } |
| ''', big = False) |
| |
| def defineMicroStoreOp(mnemonic, code, completeCode="", mem_flags="0"): |
| global header_output |
| global decoder_output |
| global exec_output |
| global microopClasses |
| Name = mnemonic |
| name = mnemonic.lower() |
| |
| # Build up the all register version of this micro op |
| iop = InstObjParams(name, Name, 'X86ISA::LdStOp', |
| {"code": code, |
| "complete_code": completeCode, |
| "ea_code": calculateEA}) |
| header_output += MicroLdStOpDeclare.subst(iop) |
| decoder_output += MicroLdStOpConstructor.subst(iop) |
| exec_output += MicroStoreExecute.subst(iop) |
| exec_output += MicroStoreInitiateAcc.subst(iop) |
| exec_output += MicroStoreCompleteAcc.subst(iop) |
| |
| class StoreOp(LdStOp): |
| def __init__(self, data, segment, addr, disp = 0, |
| dataSize="env.dataSize", |
| addressSize="env.addressSize", |
| atCPL0=False, nonSpec=False): |
| super(StoreOp, self).__init__(data, segment, addr, disp, |
| dataSize, addressSize, mem_flags, atCPL0, False, |
| nonSpec) |
| self.className = Name |
| self.mnemonic = name |
| |
| microopClasses[name] = StoreOp |
| |
| defineMicroStoreOp('St', 'Mem = pick(Data, 2, dataSize);') |
| defineMicroStoreOp('Stul', 'Mem = pick(Data, 2, dataSize);', |
| mem_flags="Request::LOCKED_RMW") |
| |
| defineMicroStoreOp('Stfp', code='Mem = FpData_uqw;') |
| |
| defineMicroStoreOp('Stfp87', code=''' |
| switch (dataSize) |
| { |
| case 4: { |
| float single(FpData_df); |
| Mem = *(uint32_t *)&single; |
| } break; |
| case 8: |
| Mem = *(uint64_t *)&FpData_df; |
| break; |
| default: |
| panic("Unhandled data size in StFp87.\\n"); |
| } |
| ''') |
| |
| defineMicroStoreOp('Cda', 'Mem = 0;', mem_flags="Request::NO_ACCESS") |
| |
| iop = InstObjParams("lea", "Lea", 'X86ISA::LdStOp', |
| {"code": "Data = merge(Data, EA, dataSize);", |
| "ea_code": ''' |
| EA = bits(scale * Index + Base + disp, addressSize * 8 - 1, 0); |
| '''}) |
| header_output += MicroLeaDeclare.subst(iop) |
| decoder_output += MicroLdStOpConstructor.subst(iop) |
| exec_output += MicroLeaExecute.subst(iop) |
| |
| class LeaOp(LdStOp): |
| def __init__(self, data, segment, addr, disp = 0, |
| dataSize="env.dataSize", addressSize="env.addressSize"): |
| super(LeaOp, self).__init__(data, segment, addr, disp, |
| dataSize, addressSize, "0", False, False, False) |
| self.className = "Lea" |
| self.mnemonic = "lea" |
| |
| microopClasses["lea"] = LeaOp |
| |
| |
| iop = InstObjParams("tia", "Tia", 'X86ISA::LdStOp', |
| {"code": "xc->demapPage(EA, 0);", |
| "ea_code": calculateEA}) |
| header_output += MicroLeaDeclare.subst(iop) |
| decoder_output += MicroLdStOpConstructor.subst(iop) |
| exec_output += MicroLeaExecute.subst(iop) |
| |
| class TiaOp(LdStOp): |
| def __init__(self, segment, addr, disp = 0, |
| dataSize="env.dataSize", |
| addressSize="env.addressSize"): |
| super(TiaOp, self).__init__("InstRegIndex(NUM_INTREGS)", segment, |
| addr, disp, dataSize, addressSize, "0", False, False, |
| False) |
| self.className = "Tia" |
| self.mnemonic = "tia" |
| |
| microopClasses["tia"] = TiaOp |
| |
| class CdaOp(LdStOp): |
| def __init__(self, segment, addr, disp = 0, |
| dataSize="env.dataSize", |
| addressSize="env.addressSize", atCPL0=False): |
| super(CdaOp, self).__init__("InstRegIndex(NUM_INTREGS)", segment, |
| addr, disp, dataSize, addressSize, "Request::NO_ACCESS", |
| atCPL0, False, False) |
| self.className = "Cda" |
| self.mnemonic = "cda" |
| |
| microopClasses["cda"] = CdaOp |
| }}; |
| |
