specop.isa revision 7682
15449Sgblack@eecs.umich.edu// Copyright (c) 2007-2008 The Hewlett-Packard Development Company 24519Sgblack@eecs.umich.edu// All rights reserved. 34519Sgblack@eecs.umich.edu// 47087Snate@binkert.org// The license below extends only to copyright in the software and shall 57087Snate@binkert.org// not be construed as granting a license to any other intellectual 67087Snate@binkert.org// property including but not limited to intellectual property relating 77087Snate@binkert.org// to a hardware implementation of the functionality of the software 87087Snate@binkert.org// licensed hereunder. You may use the software subject to the license 97087Snate@binkert.org// terms below provided that you ensure that this notice is replicated 107087Snate@binkert.org// unmodified and in its entirety in all distributions of the software, 117087Snate@binkert.org// modified or unmodified, in source code or in binary form. 124519Sgblack@eecs.umich.edu// 137087Snate@binkert.org// Redistribution and use in source and binary forms, with or without 147087Snate@binkert.org// modification, are permitted provided that the following conditions are 157087Snate@binkert.org// met: redistributions of source code must retain the above copyright 167087Snate@binkert.org// notice, this list of conditions and the following disclaimer; 177087Snate@binkert.org// redistributions in binary form must reproduce the above copyright 187087Snate@binkert.org// notice, this list of conditions and the following disclaimer in the 197087Snate@binkert.org// documentation and/or other materials provided with the distribution; 207087Snate@binkert.org// neither the name of the copyright holders nor the names of its 214519Sgblack@eecs.umich.edu// contributors may be used to endorse or promote products derived from 227087Snate@binkert.org// this software without specific prior written permission. 234519Sgblack@eecs.umich.edu// 244519Sgblack@eecs.umich.edu// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 254519Sgblack@eecs.umich.edu// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 264519Sgblack@eecs.umich.edu// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 274519Sgblack@eecs.umich.edu// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 284519Sgblack@eecs.umich.edu// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 294519Sgblack@eecs.umich.edu// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 304519Sgblack@eecs.umich.edu// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 314519Sgblack@eecs.umich.edu// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 324519Sgblack@eecs.umich.edu// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 334519Sgblack@eecs.umich.edu// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 344519Sgblack@eecs.umich.edu// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 354519Sgblack@eecs.umich.edu// 364519Sgblack@eecs.umich.edu// Authors: Gabe Black 374519Sgblack@eecs.umich.edu 384519Sgblack@eecs.umich.edu////////////////////////////////////////////////////////////////////////// 394519Sgblack@eecs.umich.edu// 404519Sgblack@eecs.umich.edu// Fault Microop 414519Sgblack@eecs.umich.edu// 424519Sgblack@eecs.umich.edu////////////////////////////////////////////////////////////////////////// 434519Sgblack@eecs.umich.edu 444590Sgblack@eecs.umich.eduoutput header {{ 455163Sgblack@eecs.umich.edu class MicroFaultBase : public X86ISA::X86MicroopBase 464590Sgblack@eecs.umich.edu { 474590Sgblack@eecs.umich.edu protected: 484590Sgblack@eecs.umich.edu Fault fault; 495163Sgblack@eecs.umich.edu uint8_t cc; 504590Sgblack@eecs.umich.edu 514590Sgblack@eecs.umich.edu public: 525163Sgblack@eecs.umich.edu MicroFaultBase(ExtMachInst _machInst, const char * instMnem, 537620Sgblack@eecs.umich.edu uint64_t setFlags, Fault _fault, uint8_t _cc); 544590Sgblack@eecs.umich.edu 554696Sgblack@eecs.umich.edu std::string generateDisassembly(Addr pc, 564696Sgblack@eecs.umich.edu const SymbolTable *symtab) const; 574590Sgblack@eecs.umich.edu }; 585172Sgblack@eecs.umich.edu 595172Sgblack@eecs.umich.edu class MicroHalt : public X86ISA::X86MicroopBase 605172Sgblack@eecs.umich.edu { 615172Sgblack@eecs.umich.edu public: 625172Sgblack@eecs.umich.edu MicroHalt(ExtMachInst _machInst, const char * instMnem, 637620Sgblack@eecs.umich.edu uint64_t setFlags) : 647682Sgblack@eecs.umich.edu X86MicroopBase(_machInst, "halt", instMnem, 657682Sgblack@eecs.umich.edu setFlags | (ULL(1) << StaticInst::IsNonSpeculative), 667682Sgblack@eecs.umich.edu No_OpClass) 675172Sgblack@eecs.umich.edu { 685172Sgblack@eecs.umich.edu } 695172Sgblack@eecs.umich.edu 705172Sgblack@eecs.umich.edu %(BasicExecDeclare)s 715449Sgblack@eecs.umich.edu 725449Sgblack@eecs.umich.edu std::string generateDisassembly(Addr pc, 735449Sgblack@eecs.umich.edu const SymbolTable *symtab) const; 745172Sgblack@eecs.umich.edu }; 754590Sgblack@eecs.umich.edu}}; 764590Sgblack@eecs.umich.edu 775163Sgblack@eecs.umich.edudef template MicroFaultDeclare {{ 785163Sgblack@eecs.umich.edu class %(class_name)s : public %(base_class)s 795163Sgblack@eecs.umich.edu { 805163Sgblack@eecs.umich.edu public: 815163Sgblack@eecs.umich.edu %(class_name)s(ExtMachInst _machInst, const char * instMnem, 827620Sgblack@eecs.umich.edu uint64_t setFlags, Fault _fault, uint8_t _cc); 835163Sgblack@eecs.umich.edu 845163Sgblack@eecs.umich.edu %(BasicExecDeclare)s 855163Sgblack@eecs.umich.edu }; 865163Sgblack@eecs.umich.edu}}; 875163Sgblack@eecs.umich.edu 885163Sgblack@eecs.umich.edudef template MicroFaultExecute {{ 895163Sgblack@eecs.umich.edu Fault %(class_name)s::execute(%(CPU_exec_context)s *xc, 904519Sgblack@eecs.umich.edu Trace::InstRecord *traceData) const 914519Sgblack@eecs.umich.edu { 925163Sgblack@eecs.umich.edu %(op_decl)s; 935163Sgblack@eecs.umich.edu %(op_rd)s; 945163Sgblack@eecs.umich.edu if (%(cond_test)s) { 955163Sgblack@eecs.umich.edu //Return the fault we were constructed with 965163Sgblack@eecs.umich.edu return fault; 975163Sgblack@eecs.umich.edu } else { 985163Sgblack@eecs.umich.edu return NoFault; 995163Sgblack@eecs.umich.edu } 1004519Sgblack@eecs.umich.edu } 1014519Sgblack@eecs.umich.edu}}; 1024519Sgblack@eecs.umich.edu 1035172Sgblack@eecs.umich.eduoutput exec {{ 1045172Sgblack@eecs.umich.edu Fault 1055172Sgblack@eecs.umich.edu MicroHalt::execute(%(CPU_exec_context)s *xc, 1065172Sgblack@eecs.umich.edu Trace::InstRecord * traceData) const 1075172Sgblack@eecs.umich.edu { 1085173Sgblack@eecs.umich.edu xc->tcBase()->suspend(); 1095172Sgblack@eecs.umich.edu return NoFault; 1105172Sgblack@eecs.umich.edu } 1115172Sgblack@eecs.umich.edu}}; 1125172Sgblack@eecs.umich.edu 1134590Sgblack@eecs.umich.eduoutput decoder {{ 1145163Sgblack@eecs.umich.edu inline MicroFaultBase::MicroFaultBase( 1155163Sgblack@eecs.umich.edu ExtMachInst machInst, const char * instMnem, 1167620Sgblack@eecs.umich.edu uint64_t setFlags, Fault _fault, uint8_t _cc) : 1177620Sgblack@eecs.umich.edu X86MicroopBase(machInst, "fault", instMnem, setFlags, No_OpClass), 1185163Sgblack@eecs.umich.edu fault(_fault), cc(_cc) 1194519Sgblack@eecs.umich.edu { 1204519Sgblack@eecs.umich.edu } 1214519Sgblack@eecs.umich.edu}}; 1224519Sgblack@eecs.umich.edu 1235163Sgblack@eecs.umich.edudef template MicroFaultConstructor {{ 1245163Sgblack@eecs.umich.edu inline %(class_name)s::%(class_name)s( 1257620Sgblack@eecs.umich.edu ExtMachInst machInst, const char * instMnem, uint64_t setFlags, 1265163Sgblack@eecs.umich.edu Fault _fault, uint8_t _cc) : 1277620Sgblack@eecs.umich.edu %(base_class)s(machInst, instMnem, setFlags, _fault, _cc) 1285163Sgblack@eecs.umich.edu { 1297626Sgblack@eecs.umich.edu %(constructor)s; 1305163Sgblack@eecs.umich.edu } 1315163Sgblack@eecs.umich.edu}}; 1325163Sgblack@eecs.umich.edu 1334696Sgblack@eecs.umich.eduoutput decoder {{ 1345163Sgblack@eecs.umich.edu std::string MicroFaultBase::generateDisassembly(Addr pc, 1354696Sgblack@eecs.umich.edu const SymbolTable *symtab) const 1364696Sgblack@eecs.umich.edu { 1374696Sgblack@eecs.umich.edu std::stringstream response; 1384696Sgblack@eecs.umich.edu 1394696Sgblack@eecs.umich.edu printMnemonic(response, instMnem, mnemonic); 1404696Sgblack@eecs.umich.edu if(fault) 1414696Sgblack@eecs.umich.edu response << fault->name(); 1424696Sgblack@eecs.umich.edu else 1434696Sgblack@eecs.umich.edu response << "No Fault"; 1444696Sgblack@eecs.umich.edu 1454696Sgblack@eecs.umich.edu return response.str(); 1464696Sgblack@eecs.umich.edu } 1475449Sgblack@eecs.umich.edu 1485449Sgblack@eecs.umich.edu std::string MicroHalt::generateDisassembly(Addr pc, 1495449Sgblack@eecs.umich.edu const SymbolTable *symtab) const 1505449Sgblack@eecs.umich.edu { 1515449Sgblack@eecs.umich.edu std::stringstream response; 1525449Sgblack@eecs.umich.edu 1535449Sgblack@eecs.umich.edu printMnemonic(response, instMnem, mnemonic); 1545449Sgblack@eecs.umich.edu 1555449Sgblack@eecs.umich.edu return response.str(); 1565449Sgblack@eecs.umich.edu } 1574696Sgblack@eecs.umich.edu}}; 1584696Sgblack@eecs.umich.edu 1594519Sgblack@eecs.umich.edulet {{ 1604590Sgblack@eecs.umich.edu class Fault(X86Microop): 1615163Sgblack@eecs.umich.edu className = "MicroFault" 1625163Sgblack@eecs.umich.edu def __init__(self, fault, flags=None): 1634590Sgblack@eecs.umich.edu self.fault = fault 1645163Sgblack@eecs.umich.edu if flags: 1655163Sgblack@eecs.umich.edu if not isinstance(flags, (list, tuple)): 1665163Sgblack@eecs.umich.edu raise Exception, "flags must be a list or tuple of flags" 1675163Sgblack@eecs.umich.edu self.cond = " | ".join(flags) 1685163Sgblack@eecs.umich.edu self.className += "Flags" 1695163Sgblack@eecs.umich.edu else: 1705163Sgblack@eecs.umich.edu self.cond = "0" 1714590Sgblack@eecs.umich.edu 1727620Sgblack@eecs.umich.edu def getAllocator(self, microFlags): 1737620Sgblack@eecs.umich.edu allocator = '''new %(class_name)s(machInst, macrocodeBlock, 1745163Sgblack@eecs.umich.edu %(flags)s, %(fault)s, %(cc)s)''' % { 1755163Sgblack@eecs.umich.edu "class_name" : self.className, 1764590Sgblack@eecs.umich.edu "flags" : self.microFlagsText(microFlags), 1775163Sgblack@eecs.umich.edu "fault" : self.fault, 1785163Sgblack@eecs.umich.edu "cc" : self.cond} 1794590Sgblack@eecs.umich.edu return allocator 1805163Sgblack@eecs.umich.edu 1815293Sgblack@eecs.umich.edu iop = InstObjParams("fault", "MicroFaultFlags", "MicroFaultBase", 1825163Sgblack@eecs.umich.edu {"code": "", 1835163Sgblack@eecs.umich.edu "cond_test": "checkCondition(ccFlagBits, cc)"}) 1845163Sgblack@eecs.umich.edu exec_output = MicroFaultExecute.subst(iop) 1855163Sgblack@eecs.umich.edu header_output = MicroFaultDeclare.subst(iop) 1865163Sgblack@eecs.umich.edu decoder_output = MicroFaultConstructor.subst(iop) 1875293Sgblack@eecs.umich.edu iop = InstObjParams("fault", "MicroFault", "MicroFaultBase", 1885163Sgblack@eecs.umich.edu {"code": "", 1895163Sgblack@eecs.umich.edu "cond_test": "true"}) 1905163Sgblack@eecs.umich.edu exec_output += MicroFaultExecute.subst(iop) 1915163Sgblack@eecs.umich.edu header_output += MicroFaultDeclare.subst(iop) 1925163Sgblack@eecs.umich.edu decoder_output += MicroFaultConstructor.subst(iop) 1934590Sgblack@eecs.umich.edu microopClasses["fault"] = Fault 1945172Sgblack@eecs.umich.edu 1955172Sgblack@eecs.umich.edu class Halt(X86Microop): 1966047Sgblack@eecs.umich.edu className = "MicroHalt" 1975172Sgblack@eecs.umich.edu def __init__(self): 1985172Sgblack@eecs.umich.edu pass 1995172Sgblack@eecs.umich.edu 2007620Sgblack@eecs.umich.edu def getAllocator(self, microFlags): 2017620Sgblack@eecs.umich.edu return "new MicroHalt(machInst, macrocodeBlock, %s)" % \ 2025172Sgblack@eecs.umich.edu self.microFlagsText(microFlags) 2035172Sgblack@eecs.umich.edu 2045172Sgblack@eecs.umich.edu microopClasses["halt"] = Halt 2054519Sgblack@eecs.umich.edu}}; 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