| // Copyright (c) 2007 The Hewlett-Packard Development Company |
| // All rights reserved. |
| // |
| // Redistribution and use of this software in source and binary forms, |
| // with or without modification, are permitted provided that the |
| // following conditions are met: |
| // |
| // The software must be used only for Non-Commercial Use which means any |
| // use which is NOT directed to receiving any direct monetary |
| // compensation for, or commercial advantage from such use. Illustrative |
| // examples of non-commercial use are academic research, personal study, |
| // teaching, education and corporate research & development. |
| // Illustrative examples of commercial use are distributing products for |
| // commercial advantage and providing services using the software for |
| // commercial advantage. |
| // |
| // If you wish to use this software or functionality therein that may be |
| // covered by patents for commercial use, please contact: |
| // Director of Intellectual Property Licensing |
| // Office of Strategy and Technology |
| // Hewlett-Packard Company |
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| // |
| // Redistributions of source code must retain the above copyright notice, |
| // this list of conditions and the following disclaimer. Redistributions |
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| // conditions and the following disclaimer in the documentation and/or |
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| // this software without specific prior written permission. No right of |
| // sublicense is granted herewith. Derivatives of the software and |
| // output created using the software may be prepared, but only for |
| // Non-Commercial Uses. Derivatives of the software may be shared with |
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| // and (ii) such Derivatives of the software include the above copyright |
| // notice to acknowledge the contribution from this software where |
| // applicable, this list of conditions and the disclaimer below. |
| // |
| // 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 |
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| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| // |
| // Authors: Gabe Black |
| |
| ////////////////////////////////////////////////////////////////////////// |
| // |
| // Fault Microop |
| // |
| ////////////////////////////////////////////////////////////////////////// |
| |
| output header {{ |
| class MicroFaultBase : public X86ISA::X86MicroopBase |
| { |
| protected: |
| Fault fault; |
| uint8_t cc; |
| |
| public: |
| MicroFaultBase(ExtMachInst _machInst, const char * instMnem, |
| bool isMicro, bool isDelayed, bool isFirst, bool isLast, |
| Fault _fault, uint8_t _cc); |
| |
| MicroFaultBase(ExtMachInst _machInst, const char * instMnem, |
| Fault _fault, uint8_t _cc); |
| |
| std::string generateDisassembly(Addr pc, |
| const SymbolTable *symtab) const; |
| }; |
| |
| class MicroHalt : public X86ISA::X86MicroopBase |
| { |
| public: |
| MicroHalt(ExtMachInst _machInst, const char * instMnem, |
| bool isMicro, bool isDelayed, bool isFirst, bool isLast) : |
| X86MicroopBase(_machInst, "halt", instMnem, |
| isMicro, isDelayed, isFirst, isLast, No_OpClass) |
| { |
| } |
| |
| MicroHalt(ExtMachInst _machInst, const char * instMnem) : |
| X86MicroopBase(_machInst, "halt", instMnem, |
| false, false, false, false, No_OpClass) |
| { |
| } |
| |
| %(BasicExecDeclare)s |
| }; |
| }}; |
| |
| def template MicroFaultDeclare {{ |
| class %(class_name)s : public %(base_class)s |
| { |
| private: |
| void buildMe(); |
| public: |
| %(class_name)s(ExtMachInst _machInst, const char * instMnem, |
| bool isMicro, bool isDelayed, bool isFirst, bool isLast, |
| Fault _fault, uint8_t _cc); |
| |
| %(class_name)s(ExtMachInst _machInst, const char * instMnem, |
| Fault _fault, uint8_t _cc); |
| |
| %(BasicExecDeclare)s |
| }; |
| }}; |
| |
| def template MicroFaultExecute {{ |
| Fault %(class_name)s::execute(%(CPU_exec_context)s *xc, |
| Trace::InstRecord *traceData) const |
| { |
| %(op_decl)s; |
| %(op_rd)s; |
| if (%(cond_test)s) { |
| //Return the fault we were constructed with |
| return fault; |
| } else { |
| return NoFault; |
| } |
| } |
| }}; |
| |
| output exec {{ |
| Fault |
| MicroHalt::execute(%(CPU_exec_context)s *xc, |
| Trace::InstRecord * traceData) const |
| { |
| xc->tcBase()->suspend(); |
| return NoFault; |
| } |
| }}; |
| |
| output decoder {{ |
| inline MicroFaultBase::MicroFaultBase( |
| ExtMachInst machInst, const char * instMnem, |
| Fault _fault, uint8_t _cc) : |
| X86MicroopBase(machInst, "fault", instMnem, |
| false, false, false, false, No_OpClass), |
| fault(_fault), cc(_cc) |
| { |
| } |
| |
| inline MicroFaultBase::MicroFaultBase( |
| ExtMachInst machInst, const char * instMnem, |
| bool isMicro, bool isDelayed, bool isFirst, bool isLast, |
| Fault _fault, uint8_t _cc) : |
| X86MicroopBase(machInst, "fault", instMnem, |
| isMicro, isDelayed, isFirst, isLast, No_OpClass), |
| fault(_fault), cc(_cc) |
| { |
| } |
| }}; |
| |
| def template MicroFaultConstructor {{ |
| |
| inline void %(class_name)s::buildMe() |
| { |
| %(constructor)s; |
| } |
| |
| inline %(class_name)s::%(class_name)s( |
| ExtMachInst machInst, const char * instMnem, |
| Fault _fault, uint8_t _cc) : |
| %(base_class)s(machInst, instMnem, _fault, _cc) |
| { |
| buildMe(); |
| } |
| |
| inline %(class_name)s::%(class_name)s( |
| ExtMachInst machInst, const char * instMnem, |
| bool isMicro, bool isDelayed, bool isFirst, bool isLast, |
| Fault _fault, uint8_t _cc) : |
| %(base_class)s(machInst, instMnem, |
| isMicro, isDelayed, isFirst, isLast, _fault, _cc) |
| { |
| buildMe(); |
| } |
| }}; |
| |
| output decoder {{ |
| std::string MicroFaultBase::generateDisassembly(Addr pc, |
| const SymbolTable *symtab) const |
| { |
| std::stringstream response; |
| |
| printMnemonic(response, instMnem, mnemonic); |
| if(fault) |
| response << fault->name(); |
| else |
| response << "No Fault"; |
| |
| return response.str(); |
| } |
| }}; |
| |
| let {{ |
| class Fault(X86Microop): |
| className = "MicroFault" |
| def __init__(self, fault, flags=None): |
| self.fault = fault |
| if flags: |
| if not isinstance(flags, (list, tuple)): |
| raise Exception, "flags must be a list or tuple of flags" |
| self.cond = " | ".join(flags) |
| self.className += "Flags" |
| else: |
| self.cond = "0" |
| |
| def getAllocator(self, *microFlags): |
| allocator = '''new %(class_name)s(machInst, mnemonic |
| %(flags)s, %(fault)s, %(cc)s)''' % { |
| "class_name" : self.className, |
| "flags" : self.microFlagsText(microFlags), |
| "fault" : self.fault, |
| "cc" : self.cond} |
| return allocator |
| |
| iop = InstObjParams("fault", "MicroFaultFlags", "MicroFaultBase", |
| {"code": "", |
| "cond_test": "checkCondition(ccFlagBits, cc)"}) |
| exec_output = MicroFaultExecute.subst(iop) |
| header_output = MicroFaultDeclare.subst(iop) |
| decoder_output = MicroFaultConstructor.subst(iop) |
| iop = InstObjParams("fault", "MicroFault", "MicroFaultBase", |
| {"code": "", |
| "cond_test": "true"}) |
| exec_output += MicroFaultExecute.subst(iop) |
| header_output += MicroFaultDeclare.subst(iop) |
| decoder_output += MicroFaultConstructor.subst(iop) |
| microopClasses["fault"] = Fault |
| |
| class Halt(X86Microop): |
| def __init__(self): |
| pass |
| |
| def getAllocator(self, *microFlags): |
| return "new MicroHalt(machInst, mnemonic %s)" % \ |
| self.microFlagsText(microFlags) |
| |
| microopClasses["halt"] = Halt |
| }}; |