base.isa revision 4343
1// -*- mode:c++ -*- 2 3// Copyright (c) 2007 The Hewlett-Packard Development Company 4// All rights reserved. 5// 6// Redistribution and use of this software in source and binary forms, 7// with or without modification, are permitted provided that the 8// following conditions are met: 9// 10// The software must be used only for Non-Commercial Use which means any 11// use which is NOT directed to receiving any direct monetary 12// compensation for, or commercial advantage from such use. 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Neither the name of 32// the COPYRIGHT HOLDER(s), HEWLETT-PACKARD COMPANY, nor the names of its 33// contributors may be used to endorse or promote products derived from 34// this software without specific prior written permission. No right of 35// sublicense is granted herewith. Derivatives of the software and 36// output created using the software may be prepared, but only for 37// Non-Commercial Uses. Derivatives of the software may be shared with 38// others provided: (i) the others agree to abide by the list of 39// conditions herein which includes the Non-Commercial Use restrictions; 40// and (ii) such Derivatives of the software include the above copyright 41// notice to acknowledge the contribution from this software where 42// applicable, this list of conditions and the disclaimer below. 43// 44// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 45// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 46// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 47// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 48// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 49// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 50// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 51// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 52// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 53// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 54// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 55// 56// Authors: Gabe Black 57 58//The operand types a microop template can be specialized with 59output header {{ 60 enum OperandType { 61 RegisterOperand, 62 ImmediateOperand 63 }; 64}}; 65 66//A class which is the base of all x86 micro ops it provides a function to 67//set necessary flags appropriately. 68output header {{ 69 class X86MicroOpBase : public X86StaticInst 70 { 71 protected: 72 uint8_t opSize; 73 uint8_t addrSize; 74 75 X86MicroOpBase(bool isMicro, bool isDelayed, 76 bool isFirst, bool isLast, 77 const char *mnem, ExtMachInst _machInst, 78 OpClass __opClass) : 79 X86StaticInst(mnem, _machInst, __opClass) 80 { 81 flags[IsMicroOp] = isMicro; 82 flags[IsDelayedCommit] = isDelayed; 83 flags[IsFirstMicroOp] = isFirst; 84 flags[IsLastMicroOp] = isLast; 85 } 86 }; 87}}; 88 89// This sets up a class which is templated on the type of 90// arguments a particular flavor of a microcode instruction 91// can accept. It's parameters are specialized to create polymorphic 92// behavior in microops. 93def template BaseMicroOpTemplateDeclare {{ 94 template%(signature)s 95 class %(class_name)s; 96}}; 97 98let {{ 99 def buildBaseMicroOpTemplate(Name, numParams): 100 signature = "<" 101 signature += "int SignatureOperandTypeSpecifier0" 102 for count in xrange(1,numParams): 103 signature += \ 104 ", int SingatureOperandTypeSpecifier%d" % count 105 signature += ">" 106 subs = {"signature" : signature, "class_name" : Name} 107 return BaseMicroOpTemplateDeclare.subst(subs) 108 109 RegOpType = "RegisterOperand" 110 ImmOpType = "ImmediateOperand" 111 112 def buildMicroOpTemplateDict(*params): 113 signature = "<" 114 if len(params): 115 signature += params[0] 116 if len(params) > 1: 117 for param in params[1:]: 118 signature += ", %s" % param 119 signature += ">" 120 subs = {"param_dec" : "", "param_arg_dec" : "", 121 "param_init" : "", "signature" : signature} 122 for count in xrange(len(params)): 123 subs["param_dec"] += "uint64_t param%d;\n" % count 124 subs["param_arg_dec"] += ", uint64_t _param%d" % count 125 subs["param_init"] += ", param%d(_param%d)" % (count, count) 126 return subs 127}}; 128 129// A tmeplate for building a specialized version of the microcode 130// instruction which knows specifies which arguments it wants 131def template MicroOpDeclare {{ 132 template<> 133 class %(class_name)s%(signature)s : public X86MicroOpBase 134 { 135 protected: 136 %(param_dec)s 137 void buildMe(); 138 139 public: 140 %(class_name)s(bool isMicro, bool isDelayed, 141 bool isFirst, bool isLast, 142 ExtMachInst _machInst %(param_arg_dec)s); 143 144 %(class_name)s(ExtMachInst _machInst %(param_arg_dec)s); 145 146 %(BasicExecDeclare)s 147 }; 148}}; 149 150def template MicroOpConstructor {{ 151 152 inline void %(class_name)s%(signature)s::buildMe() 153 { 154 %(constructor)s; 155 } 156 157 inline %(class_name)s%(signature)s::%(class_name)s( 158 ExtMachInst machInst %(param_arg_dec)s) : 159 %(base_class)s(false, false, false, false, 160 "%(mnemonic)s", machInst, %(op_class)s) 161 %(param_init)s 162 { 163 buildMe(); 164 } 165 166 inline %(class_name)s%(signature)s::%(class_name)s( 167 bool isMicro, bool isDelayed, bool isFirst, bool isLast, 168 ExtMachInst machInst %(param_arg_dec)s) 169 : %(base_class)s(isMicro, isDelayed, isFirst, isLast, 170 "%(mnemonic)s", machInst, %(op_class)s) 171 %(param_init)s 172 { 173 buildMe(); 174 } 175}}; 176