nop.isa revision 4712
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: 9// 10// The software must be used only for Non-Commercial Use which means any 11// use which is NOT directed to receiving any direct monetary 12// compensation for, or commercial advantage from such use. Illustrative 13// examples of non-commercial use are academic research, personal study, 14// teaching, education and corporate research & development. 15// Illustrative examples of commercial use are distributing products for 16// commercial advantage and providing services using the software for 17// commercial advantage. 18// 19// If you wish to use this software or functionality therein that may be 20// covered by patents for commercial use, please contact: 21// Director of Intellectual Property Licensing 22// Office of Strategy and Technology 23// Hewlett-Packard Company 24// 1501 Page Mill Road 25// Palo Alto, California 94304 26// 27// Redistributions of source code must retain the above copyright notice, 28// this list of conditions and the following disclaimer. Redistributions 29// in binary form must reproduce the above copyright notice, this list of 30// conditions and the following disclaimer in the documentation and/or 31// other materials provided with the distribution. Neither the name of 32// the COPYRIGHT HOLDER(s), HEWLETT-PACKARD COMPANY, nor the names of its 33// contributors may be used to endorse or promote products derived from 34// this software without specific prior written permission. No right of 35// sublicense is granted herewith. Derivatives of the software and 36// output created using the software may be prepared, but only for 37// Non-Commercial Uses. Derivatives of the software may be shared with 38// others provided: (i) the others agree to abide by the list of 39// conditions herein which includes the Non-Commercial Use restrictions; 40// and (ii) such Derivatives of the software include the above copyright 41// notice to acknowledge the contribution from this software where 42// applicable, this list of conditions and the disclaimer below. 43// 44// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 45// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 46// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 47// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 48// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 49// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 50// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 51// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 52// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 53// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 54// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 55// 56// Authors: Gabe Black 57 58//////////////////////////////////////////////////////////////////// 59// 60// "Format" which describes an instruction whose only purpose is to 61// call a syscall in SE mode. 62// 63 64output header {{ 65 class SyscallInst : public X86ISA::X86StaticInst 66 { 67 public: 68 /// Constructor 69 SyscallInst(const char *_mnemonic, ExtMachInst _machInst, 70 OpClass __opClass) : 71 X86ISA::X86StaticInst(_mnemonic, _machInst, __opClass) 72 { 73 } 74 75 std::string generateDisassembly(Addr pc, 76 const SymbolTable *symtab) const; 77 }; 78}}; 79 80output decoder {{ 81 std::string SyscallInst::generateDisassembly(Addr PC, 82 const SymbolTable *symtab) const 83 { 84 std::stringstream response; 85 86 printMnemonic(response, mnemonic); 87 ccprintf(response, " "); 88 printReg(response, _srcRegIdx[0], machInst.opSize); 89 return response.str(); 90 } 91}}; 92 93def template SyscallExecute {{ 94 Fault %(class_name)s::execute(%(CPU_exec_context)s *xc, 95 Trace::InstRecord *traceData) const 96 { 97 Fault fault = NoFault; 98 %(op_decl)s; 99 %(op_rd)s; 100 %(code)s; 101 return fault; 102 } 103}}; 104 105def format SyscallInst(code, *opt_flags) {{ 106 iop = InstObjParams(name, Name, 'SyscallInst', code, opt_flags) 107 header_output = BasicDeclare.subst(iop) 108 decoder_output = BasicConstructor.subst(iop) 109 decode_block = BasicDecode.subst(iop) 110 exec_output = SyscallExecute.subst(iop) 111}}; 112 113