limmop.isa revision 7626:bdd926760470
1// Copyright (c) 2007 The Hewlett-Packard Development Company 2// All rights reserved. 3// 4// The license below extends only to copyright in the software and shall 5// not be construed as granting a license to any other intellectual 6// property including but not limited to intellectual property relating 7// to a hardware implementation of the functionality of the software 8// licensed hereunder. You may use the software subject to the license 9// terms below provided that you ensure that this notice is replicated 10// unmodified and in its entirety in all distributions of the software, 11// modified or unmodified, in source code or in binary form. 12// 13// Redistribution and use in source and binary forms, with or without 14// modification, are permitted provided that the following conditions are 15// met: redistributions of source code must retain the above copyright 16// notice, this list of conditions and the following disclaimer; 17// redistributions in binary form must reproduce the above copyright 18// notice, this list of conditions and the following disclaimer in the 19// documentation and/or other materials provided with the distribution; 20// neither the name of the copyright holders nor the names of its 21// contributors may be used to endorse or promote products derived from 22// this software without specific prior written permission. 23// 24// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 25// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 26// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 27// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 28// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 29// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 30// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 31// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 32// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 33// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 34// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 35// 36// Authors: Gabe Black 37 38////////////////////////////////////////////////////////////////////////// 39// 40// LIMMOp Microop templates 41// 42////////////////////////////////////////////////////////////////////////// 43 44def template MicroLimmOpExecute {{ 45 Fault %(class_name)s::execute(%(CPU_exec_context)s *xc, 46 Trace::InstRecord *traceData) const 47 { 48 %(op_decl)s; 49 %(op_rd)s; 50 %(code)s; 51 %(op_wb)s; 52 return NoFault; 53 } 54}}; 55 56def template MicroLimmOpDeclare {{ 57 class %(class_name)s : public X86ISA::X86MicroopBase 58 { 59 protected: 60 const RegIndex dest; 61 const uint64_t imm; 62 const uint8_t dataSize; 63 RegIndex foldOBit; 64 65 std::string generateDisassembly(Addr pc, 66 const SymbolTable *symtab) const; 67 68 public: 69 %(class_name)s(ExtMachInst _machInst, 70 const char * instMnem, 71 uint64_t setFlags, InstRegIndex _dest, 72 uint64_t _imm, uint8_t _dataSize); 73 74 %(BasicExecDeclare)s 75 }; 76}}; 77 78def template MicroLimmOpDisassembly {{ 79 std::string %(class_name)s::generateDisassembly(Addr pc, 80 const SymbolTable *symtab) const 81 { 82 std::stringstream response; 83 84 printMnemonic(response, instMnem, mnemonic); 85 printDestReg(response, 0, dataSize); 86 response << ", "; 87 ccprintf(response, "%#x", imm); 88 return response.str(); 89 } 90}}; 91 92def template MicroLimmOpConstructor {{ 93 inline %(class_name)s::%(class_name)s( 94 ExtMachInst machInst, const char * instMnem, uint64_t setFlags, 95 InstRegIndex _dest, uint64_t _imm, uint8_t _dataSize) : 96 %(base_class)s(machInst, "%(mnemonic)s", instMnem, 97 setFlags, %(op_class)s), 98 dest(_dest.idx), imm(_imm), dataSize(_dataSize) 99 { 100 foldOBit = (dataSize == 1 && !machInst.rex.present) ? 1 << 6 : 0; 101 %(constructor)s; 102 } 103}}; 104 105let {{ 106 class LimmOp(X86Microop): 107 def __init__(self, dest, imm, dataSize="env.dataSize"): 108 self.className = "Limm" 109 self.mnemonic = "limm" 110 self.dest = dest 111 if isinstance(imm, (int, long)): 112 imm = "ULL(%d)" % imm 113 self.imm = imm 114 self.dataSize = dataSize 115 116 def getAllocator(self, microFlags): 117 allocator = '''new %(class_name)s(machInst, macrocodeBlock, 118 %(flags)s, %(dest)s, %(imm)s, %(dataSize)s)''' % { 119 "class_name" : self.className, 120 "mnemonic" : self.mnemonic, 121 "flags" : self.microFlagsText(microFlags), 122 "dest" : self.dest, "imm" : self.imm, 123 "dataSize" : self.dataSize} 124 return allocator 125 126 microopClasses["limm"] = LimmOp 127 128 class LfpimmOp(X86Microop): 129 def __init__(self, dest, imm, dataSize="env.dataSize"): 130 self.className = "Lfpimm" 131 self.mnemonic = "lfpimm" 132 self.dest = dest 133 if isinstance(imm, (int, long)): 134 imm = "ULL(%d)" % imm 135 if isinstance(imm, float): 136 imm = "reinterpret_cast<uint64_t>((double)(%d))" 137 self.imm = imm 138 self.dataSize = dataSize 139 140 def getAllocator(self, microFlags): 141 allocator = '''new %(class_name)s(machInst, macrocodeBlock, 142 %(flags)s, %(dest)s, %(imm)s, %(dataSize)s)''' % { 143 "class_name" : self.className, 144 "mnemonic" : self.mnemonic, 145 "flags" : self.microFlagsText(microFlags), 146 "dest" : self.dest, "imm" : self.imm, 147 "dataSize" : self.dataSize} 148 return allocator 149 150 microopClasses["lfpimm"] = LfpimmOp 151}}; 152 153let {{ 154 # Build up the all register version of this micro op 155 iop = InstObjParams("limm", "Limm", 'X86MicroopBase', 156 {"code" : "DestReg = merge(DestReg, imm, dataSize);"}) 157 header_output += MicroLimmOpDeclare.subst(iop) 158 decoder_output += MicroLimmOpConstructor.subst(iop) 159 decoder_output += MicroLimmOpDisassembly.subst(iop) 160 exec_output += MicroLimmOpExecute.subst(iop) 161 162 iop = InstObjParams("lfpimm", "Lfpimm", 'X86MicroopBase', 163 {"code" : "FpDestReg.uqw = imm"}) 164 header_output += MicroLimmOpDeclare.subst(iop) 165 decoder_output += MicroLimmOpConstructor.subst(iop) 166 decoder_output += MicroLimmOpDisassembly.subst(iop) 167 exec_output += MicroLimmOpExecute.subst(iop) 168}}; 169