unknown.isa revision 12234:78ece221f9f5
1// Copyright (c) 2006 The Regents of The University of Michigan 2// All rights reserved. 3// 4// Redistribution and use in source and binary forms, with or without 5// modification, are permitted provided that the following conditions are 6// met: redistributions of source code must retain the above copyright 7// notice, this list of conditions and the following disclaimer; 8// redistributions in binary form must reproduce the above copyright 9// notice, this list of conditions and the following disclaimer in the 10// documentation and/or other materials provided with the distribution; 11// neither the name of the copyright holders nor the names of its 12// contributors may be used to endorse or promote products derived from 13// this software without specific prior written permission. 14// 15// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 16// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 17// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 18// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 19// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 20// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 21// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 25// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26// 27// Authors: Gabe Black 28// Steve Reinhardt 29 30//////////////////////////////////////////////////////////////////// 31// 32// Unknown instructions 33// 34 35output header {{ 36 /** 37 * Class for Unknown/Illegal instructions 38 */ 39 class Unknown : public SparcStaticInst 40 { 41 public: 42 43 // Constructor 44 Unknown(ExtMachInst _machInst) : 45 SparcStaticInst("unknown", _machInst, No_OpClass) 46 { 47 } 48 49 %(BasicExecDeclare)s 50 51 std::string generateDisassembly(Addr pc, 52 const SymbolTable *symtab) const; 53 54 }; 55}}; 56 57output decoder {{ 58 std::string Unknown::generateDisassembly(Addr pc, 59 const SymbolTable *symtab) const 60 { 61 return "Unknown instruction"; 62 } 63}}; 64 65output exec {{ 66 Fault Unknown::execute(ExecContext *xc, 67 Trace::InstRecord *traceData) const 68 { 69 return std::make_shared<IllegalInstruction>(); 70 } 71}}; 72 73def format Unknown() {{ 74 decode_block = 'return new Unknown(machInst);\n' 75}}; 76