1// -*- mode:c++ -*- 2 3// Copyright (c) 2003-2005 The Regents of The University of Michigan 4// All rights reserved. 5// 6// Redistribution and use in source and binary forms, with or without 7// modification, are permitted provided that the following conditions are 8// met: redistributions of source code must retain the above copyright --- 30 unchanged lines hidden (view full) --- 39 * Base class for general Alpha memory-format instructions. 40 */ 41 class Memory : public AlphaStaticInst 42 { 43 protected: 44 45 /// Memory request flags. See mem_req_base.hh. 46 Request::Flags memAccessFlags; |
47 48 /// Constructor |
49 Memory(const char *mnem, ExtMachInst _machInst, OpClass __opClass) 50 : AlphaStaticInst(mnem, _machInst, __opClass) |
51 { 52 } 53 54 std::string 55 generateDisassembly(Addr pc, const SymbolTable *symtab) const; 56 |
57 public: |
58 |
59 Request::Flags memAccFlags() { return memAccessFlags; } 60 }; 61 62 /** 63 * Base class for memory-format instructions using a 32-bit 64 * displacement (i.e. most of them). 65 */ 66 class MemoryDisp32 : public Memory 67 { 68 protected: 69 /// Displacement for EA calculation (signed). 70 int32_t disp; 71 72 /// Constructor. |
73 MemoryDisp32(const char *mnem, ExtMachInst _machInst, OpClass __opClass) 74 : Memory(mnem, _machInst, __opClass), |
75 disp(MEMDISP) 76 { 77 } 78 }; 79 80 81 /** 82 * Base class for a few miscellaneous memory-format insts 83 * that don't interpret the disp field: wh64, fetch, fetch_m, ecb. 84 * None of these instructions has a destination register either. 85 */ 86 class MemoryNoDisp : public Memory 87 { 88 protected: 89 /// Constructor |
90 MemoryNoDisp(const char *mnem, ExtMachInst _machInst, OpClass __opClass) 91 : Memory(mnem, _machInst, __opClass) |
92 { 93 } 94 95 std::string 96 generateDisassembly(Addr pc, const SymbolTable *symtab) const; 97 }; 98}}; 99 --- 23 unchanged lines hidden (view full) --- 123 124 125def template LoadStoreDeclare {{ 126 /** 127 * Static instruction class for "%(mnemonic)s". 128 */ 129 class %(class_name)s : public %(base_class)s 130 { |
131 public: 132 133 /// Constructor. 134 %(class_name)s(ExtMachInst machInst); 135 136 %(BasicExecDeclare)s 137 |
138 %(EACompDeclare)s 139 |
140 %(InitiateAccDeclare)s 141 142 %(CompleteAccDeclare)s 143 144 %(MemAccSizeDeclare)s 145 }; 146}}; 147 148 |
149def template EACompDeclare {{ 150 Fault eaComp(%(CPU_exec_context)s *, Trace::InstRecord *) const; 151}}; 152 |
153def template InitiateAccDeclare {{ 154 Fault initiateAcc(%(CPU_exec_context)s *, Trace::InstRecord *) const; 155}}; 156 157 158def template CompleteAccDeclare {{ 159 Fault completeAcc(PacketPtr, %(CPU_exec_context)s *, 160 Trace::InstRecord *) const; --- 14 unchanged lines hidden (view full) --- 175def template LoadStoreMemAccSize {{ 176 int %(class_name)s::memAccSize(%(CPU_exec_context)s *xc) 177 { 178 // Return the memory access size in bytes 179 return (%(mem_acc_size)d / 8); 180 } 181}}; 182 |
183 |
184def template LoadStoreConstructor {{ 185 inline %(class_name)s::%(class_name)s(ExtMachInst machInst) |
186 : %(base_class)s("%(mnemonic)s", machInst, %(op_class)s) |
187 { 188 %(constructor)s; 189 } 190}}; 191 |
192def template EACompExecute {{ |
193 Fault %(class_name)s::eaComp(%(CPU_exec_context)s *xc, 194 Trace::InstRecord *traceData) const |
195 { 196 Addr EA; 197 Fault fault = NoFault; 198 199 %(fp_enable_check)s; 200 %(op_decl)s; 201 %(op_rd)s; 202 %(ea_code)s; 203 204 if (fault == NoFault) { 205 %(op_wb)s; 206 xc->setEA(EA); 207 } 208 209 return fault; 210 } 211}}; 212 |
213 |
214def template LoadExecute {{ 215 Fault %(class_name)s::execute(%(CPU_exec_context)s *xc, 216 Trace::InstRecord *traceData) const 217 { 218 Addr EA; 219 Fault fault = NoFault; 220 221 %(fp_enable_check)s; --- 56 unchanged lines hidden (view full) --- 278 %(op_wb)s; 279 } 280 281 return fault; 282 } 283}}; 284 285 |
286def template StoreExecute {{ 287 Fault %(class_name)s::execute(%(CPU_exec_context)s *xc, 288 Trace::InstRecord *traceData) const 289 { 290 Addr EA; 291 Fault fault = NoFault; 292 293 %(fp_enable_check)s; --- 128 unchanged lines hidden (view full) --- 422 %(op_wb)s; 423 } 424 425 return fault; 426 } 427}}; 428 429 |
430def template MiscExecute {{ 431 Fault %(class_name)s::execute(%(CPU_exec_context)s *xc, 432 Trace::InstRecord *traceData) const 433 { 434 Addr EA; 435 Fault fault = NoFault; 436 437 %(fp_enable_check)s; --- 82 unchanged lines hidden (view full) --- 520 # are nested inside the larger "atomic" one. 521 522 # Generate InstObjParams for each of the three objects. Note that 523 # they differ only in the set of code objects contained (which in 524 # turn affects the object's overall operand list). 525 iop = InstObjParams(name, Name, base_class, 526 { 'ea_code':ea_code, 'memacc_code':memacc_code, 'postacc_code':postacc_code }, 527 inst_flags) |
528 memacc_iop = InstObjParams(name, Name, base_class, 529 { 'memacc_code':memacc_code, 'postacc_code':postacc_code }, 530 inst_flags) 531 532 if mem_flags: 533 mem_flags = [ 'Request::%s' % flag for flag in mem_flags ] 534 s = '\n\tmemAccessFlags = ' + string.join(mem_flags, '|') + ';' 535 iop.constructor += s 536 memacc_iop.constructor += s 537 538 # select templates 539 540 # The InitiateAcc template is the same for StoreCond templates as the 541 # corresponding Store template.. 542 StoreCondInitiateAcc = StoreInitiateAcc 543 |
544 fullExecTemplate = eval(exec_template_base + 'Execute') 545 initiateAccTemplate = eval(exec_template_base + 'InitiateAcc') 546 completeAccTemplate = eval(exec_template_base + 'CompleteAcc') 547 548 if (exec_template_base == 'Load' or exec_template_base == 'Store'): 549 memAccSizeTemplate = eval('LoadStoreMemAccSize') 550 else: 551 memAccSizeTemplate = eval('MiscMemAccSize') 552 553 # (header_output, decoder_output, decode_block, exec_output) 554 return (LoadStoreDeclare.subst(iop), |
555 LoadStoreConstructor.subst(iop), |
556 decode_template.subst(iop), |
557 fullExecTemplate.subst(iop) 558 + EACompExecute.subst(iop) |
559 + initiateAccTemplate.subst(iop) 560 + completeAccTemplate.subst(iop) 561 + memAccSizeTemplate.subst(memacc_iop)) 562}}; 563 564def format LoadOrNop(memacc_code, ea_code = {{ EA = Rb + disp; }}, 565 mem_flags = [], inst_flags = []) {{ 566 (header_output, decoder_output, decode_block, exec_output) = \ --- 63 unchanged lines hidden --- |