trap.isa revision 2632
14825Sgblack@eecs.umich.edu// Copyright (c) 2006 The Regents of The University of Michigan 29582Snilay@cs.wisc.edu// All rights reserved. 34825Sgblack@eecs.umich.edu// 44825Sgblack@eecs.umich.edu// Redistribution and use in source and binary forms, with or without 57087Snate@binkert.org// modification, are permitted provided that the following conditions are 67087Snate@binkert.org// met: redistributions of source code must retain the above copyright 77087Snate@binkert.org// notice, this list of conditions and the following disclaimer; 87087Snate@binkert.org// redistributions in binary form must reproduce the above copyright 97087Snate@binkert.org// notice, this list of conditions and the following disclaimer in the 107087Snate@binkert.org// documentation and/or other materials provided with the distribution; 117087Snate@binkert.org// neither the name of the copyright holders nor the names of its 127087Snate@binkert.org// contributors may be used to endorse or promote products derived from 134825Sgblack@eecs.umich.edu// this software without specific prior written permission. 147087Snate@binkert.org// 157087Snate@binkert.org// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 167087Snate@binkert.org// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 177087Snate@binkert.org// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 187087Snate@binkert.org// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 197087Snate@binkert.org// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 207087Snate@binkert.org// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 217087Snate@binkert.org// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 224825Sgblack@eecs.umich.edu// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 237087Snate@binkert.org// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 244825Sgblack@eecs.umich.edu// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 254825Sgblack@eecs.umich.edu// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 264825Sgblack@eecs.umich.edu// 274825Sgblack@eecs.umich.edu// Authors: Gabe Black 284825Sgblack@eecs.umich.edu// Steve Reinhardt 294825Sgblack@eecs.umich.edu 304825Sgblack@eecs.umich.edu//////////////////////////////////////////////////////////////////// 314825Sgblack@eecs.umich.edu// 324825Sgblack@eecs.umich.edu// Trap instructions 334825Sgblack@eecs.umich.edu// 344825Sgblack@eecs.umich.edu 354825Sgblack@eecs.umich.eduoutput header {{ 364825Sgblack@eecs.umich.edu /** 374825Sgblack@eecs.umich.edu * Base class for trap instructions, 389582Snilay@cs.wisc.edu * or instructions that always fault. 394825Sgblack@eecs.umich.edu */ 405162Sgblack@eecs.umich.edu class Trap : public SparcStaticInst 415162Sgblack@eecs.umich.edu { 425162Sgblack@eecs.umich.edu protected: 435162Sgblack@eecs.umich.edu 449582Snilay@cs.wisc.edu // Constructor 455162Sgblack@eecs.umich.edu Trap(const char *mnem, ExtMachInst _machInst, OpClass __opClass) : 465162Sgblack@eecs.umich.edu SparcStaticInst(mnem, _machInst, __opClass), trapNum(SW_TRAP) 475162Sgblack@eecs.umich.edu { 485162Sgblack@eecs.umich.edu } 495162Sgblack@eecs.umich.edu 505162Sgblack@eecs.umich.edu std::string generateDisassembly(Addr pc, 515162Sgblack@eecs.umich.edu const SymbolTable *symtab) const; 525162Sgblack@eecs.umich.edu 534825Sgblack@eecs.umich.edu int trapNum; 545162Sgblack@eecs.umich.edu }; 555162Sgblack@eecs.umich.edu}}; 569582Snilay@cs.wisc.edu 579582Snilay@cs.wisc.eduoutput decoder {{ 589582Snilay@cs.wisc.edu std::string Trap::generateDisassembly(Addr pc, 599582Snilay@cs.wisc.edu const SymbolTable *symtab) const 609582Snilay@cs.wisc.edu { 615162Sgblack@eecs.umich.edu std::stringstream response; 625162Sgblack@eecs.umich.edu 634825Sgblack@eecs.umich.edu printMnemonic(response, mnemonic); 644825Sgblack@eecs.umich.edu ccprintf(response, " "); 655162Sgblack@eecs.umich.edu printReg(response, _srcRegIdx[0]); 665162Sgblack@eecs.umich.edu ccprintf(response, ", 0x%x", trapNum); 675162Sgblack@eecs.umich.edu ccprintf(response, ", or "); 685162Sgblack@eecs.umich.edu printReg(response, _srcRegIdx[1]); 695162Sgblack@eecs.umich.edu return response.str(); 705162Sgblack@eecs.umich.edu } 715162Sgblack@eecs.umich.edu}}; 725162Sgblack@eecs.umich.edu 735162Sgblack@eecs.umich.edudef template TrapExecute {{ 745162Sgblack@eecs.umich.edu Fault %(class_name)s::execute(%(CPU_exec_context)s *xc, 755162Sgblack@eecs.umich.edu Trace::InstRecord *traceData) const 765162Sgblack@eecs.umich.edu { 775162Sgblack@eecs.umich.edu Fault fault = NoFault; 789470Snilay@cs.wisc.edu %(op_decl)s; 799470Snilay@cs.wisc.edu %(op_rd)s; 805162Sgblack@eecs.umich.edu %(code)s 815162Sgblack@eecs.umich.edu return fault; 825162Sgblack@eecs.umich.edu } 835162Sgblack@eecs.umich.edu}}; 845162Sgblack@eecs.umich.edu 855162Sgblack@eecs.umich.edudef format Trap(code, *opt_flags) {{ 865162Sgblack@eecs.umich.edu orig_code = code 875162Sgblack@eecs.umich.edu cblk = CodeBlock(code) 889582Snilay@cs.wisc.edu iop = InstObjParams(name, Name, 'Trap', cblk, opt_flags) 899582Snilay@cs.wisc.edu header_output = BasicDeclare.subst(iop) 909582Snilay@cs.wisc.edu decoder_output = BasicConstructor.subst(iop) 919582Snilay@cs.wisc.edu decode_block = BasicDecode.subst(iop) 929582Snilay@cs.wisc.edu exec_output = TrapExecute.subst(iop) 939582Snilay@cs.wisc.edu}}; 949582Snilay@cs.wisc.edu