macroop.isa (4519:f8da6b45573f) macroop.isa (4528:f0b19ee67a7b)
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:

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66 {
67 panic("Tried to execute macroop directly!");
68 return NoFault;
69 }
70}};
71
72output header {{
73
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:

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66 {
67 panic("Tried to execute macroop directly!");
68 return NoFault;
69 }
70}};
71
72output header {{
73
74 // Base class for macroops
74 // Base class for combinationally generated macroops
75 class MacroOp : public StaticInst
76 {
77 protected:
78 const uint32_t numMicroOps;
79
80 //Constructor.
81 MacroOp(const char *mnem, ExtMachInst _machInst,
82 uint32_t _numMicroOps)

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108 }
109
110 %(MacroExecPanic)s
111 };
112}};
113
114// Basic instruction class declaration template.
115def template MacroDeclare {{
75 class MacroOp : public StaticInst
76 {
77 protected:
78 const uint32_t numMicroOps;
79
80 //Constructor.
81 MacroOp(const char *mnem, ExtMachInst _machInst,
82 uint32_t _numMicroOps)

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108 }
109
110 %(MacroExecPanic)s
111 };
112}};
113
114// Basic instruction class declaration template.
115def template MacroDeclare {{
116 /**
117 * Static instruction class for "%(mnemonic)s".
118 */
119 class %(class_name)s : public %(base_class)s
116 namespace X86Microop
120 {
117 {
121 public:
122 // Constructor.
123 %(class_name)s(ExtMachInst machInst);
118 /**
119 * Static instruction class for "%(mnemonic)s".
120 */
121 class %(class_name)s : public %(base_class)s
122 {
123 public:
124 // Constructor.
125 %(class_name)s(ExtMachInst machInst);
126 };
124 };
125}};
126
127// Basic instruction class constructor template.
128def template MacroConstructor {{
129 inline %(class_name)s::%(class_name)s(ExtMachInst machInst)
130 : %(base_class)s("%(mnemonic)s", machInst, %(num_micro_ops)s)
131 {

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137}};
138
139//////////////////////////////////////////////////////////////////////////////
140//
141// X86 specific
142//
143
144let {{
127 };
128}};
129
130// Basic instruction class constructor template.
131def template MacroConstructor {{
132 inline %(class_name)s::%(class_name)s(ExtMachInst machInst)
133 : %(base_class)s("%(mnemonic)s", machInst, %(num_micro_ops)s)
134 {

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140}};
141
142//////////////////////////////////////////////////////////////////////////////
143//
144// X86 specific
145//
146
147let {{
145 def genMacroOp(name, Name, opSeq):
146 numMicroOps = len(opSeq)
147 allocMicroOps = ''
148 micropc = 0
149 for op in opSeq:
150 allocMicroOps += \
151 "microOps[%d] = %s;\n" % \
152 (micropc, op.getAllocator('"' + name + '"', True, False,
153 #op.delayed,
154 micropc == 0,
155 micropc == numMicroOps - 1))
156 micropc += 1
157 iop = InstObjParams(name, Name, 'MacroOp',
158 {'code' : '', 'num_micro_ops' : numMicroOps,
159 'alloc_micro_ops' : allocMicroOps})
160 header_output = MacroDeclare.subst(iop)
161 decoder_output = MacroConstructor.subst(iop)
162 decode_block = BasicDecode.subst(iop)
163 exec_output = ''
164 return (header_output, decoder_output, decode_block, exec_output)
148 from micro_asm import Combinational_Macroop, Rom_Macroop
149 class X86Macroop(Combinational_Macroop):
150 def __init__(self, name):
151 super(X86Macroop, self).__init__(name)
152 self.directives = {
153 }
154 self.declared = False
155 def getAllocator(self, env):
156 return "new X86Macroop::%s(machInst)" % self.name
157 def getDeclaration(self):
158 #FIXME This first parameter should be the mnemonic. I need to
159 #write some code which pulls that out
160 iop = InstObjParams(self.name, self.name, "Macroop", {"code" : ""})
161 return MacroDeclare.subst(iop);
162 def getDefinition(self):
163 #FIXME This first parameter should be the mnemonic. I need to
164 #write some code which pulls that out
165 numMicroops = len(self.microops)
166 allocMicroops = ''
167 micropc = 0
168 for op in self.microops:
169 allocMicroops += \
170 "microOps[%d] = %s;\n" % \
171 (micropc, op.getAllocator(True, False,
172 micropc == 0,
173 micropc == numMicroops - 1))
174 micropc += 1
175 iop = InstObjParams(self.name, self.name, "Macroop",
176 {"code" : "", "num_micro_ops" : numMicroops,
177 "alloc_micro_ops" : allocMicroops})
178 return MacroConstructor.subst(iop);
165}};
179}};
180
181output header {{
182 struct EmulEnv
183 {
184 X86ISA::RegIndex reg;
185 X86ISA::RegIndex regm;
186 uint64_t immediate;
187 uint64_t displacement;
188 int addressSize;
189 int dataSize;
190
191 EmulEnv(X86ISA::RegIndex _reg, X86ISA::RegIndex _regm,
192 uint64_t _immediate, uint64_t _displacement,
193 int _addressSize, int _dataSize) :
194 reg(_reg), regm(_regm),
195 immediate(_immediate), displacement(_displacement),
196 addressSize(_addressSize), dataSize(_dataSize)
197 {;}
198 };
199}};
200
201let {{
202 class EmulEnv(object):
203 def __init__(self):
204 self.reg = "Not specified"
205 self.regm = "Not specified"
206 self.immediate = "IMMEDIATE"
207 self.displacement = "DISPLACEMENT"
208 self.addressSize = "ADDRSIZE"
209 self.dataSize = "OPSIZE"
210 def getAllocator(self):
211 return "EmulEmv(%(reg)s, %(regm)s, %(immediate)s, %(displacement)s, %(addressSize)s, %(dataSize)s)" % \
212 self.__dict__()
213}};
214
215let {{
216 def genMacroop(Name, env):
217 if not macroopDict.has_key(Name):
218 raise Exception, "Unrecognized instruction: %s" % Name
219 macroop = macroopDict[Name]
220 if not macroop.declared:
221 global header_output
222 global decoder_output
223 header_output = macroop.getDeclaration()
224 decoder_output = macroop.getDefinition()
225 return "return %s;\n" % macroop.getAllocator(env)
226}};