basic.isa revision 10184:bbfa3152bdea
16157Snate@binkert.org// -*- mode:c++ -*- 26157Snate@binkert.org 36157Snate@binkert.org// -*- mode:c++ -*- 46157Snate@binkert.org 56157Snate@binkert.org// Copyright (c) 2003-2005 The Regents of The University of Michigan 66157Snate@binkert.org// All rights reserved. 76157Snate@binkert.org// 86157Snate@binkert.org// Redistribution and use in source and binary forms, with or without 96157Snate@binkert.org// modification, are permitted provided that the following conditions are 106157Snate@binkert.org// met: redistributions of source code must retain the above copyright 116157Snate@binkert.org// notice, this list of conditions and the following disclaimer; 126157Snate@binkert.org// redistributions in binary form must reproduce the above copyright 136157Snate@binkert.org// notice, this list of conditions and the following disclaimer in the 146157Snate@binkert.org// documentation and/or other materials provided with the distribution; 156157Snate@binkert.org// neither the name of the copyright holders nor the names of its 166157Snate@binkert.org// contributors may be used to endorse or promote products derived from 176157Snate@binkert.org// this software without specific prior written permission. 186157Snate@binkert.org// 196157Snate@binkert.org// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 206157Snate@binkert.org// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 216157Snate@binkert.org// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 226157Snate@binkert.org// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 236157Snate@binkert.org// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 246157Snate@binkert.org// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 256157Snate@binkert.org// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 266157Snate@binkert.org// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 276157Snate@binkert.org// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 286157Snate@binkert.org// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 296157Snate@binkert.org// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 306157Snate@binkert.org// 316157Snate@binkert.org// Authors: Steve Reinhardt 326157Snate@binkert.org// Korey Sewell 336168Snate@binkert.org 346168Snate@binkert.org// Declarations for execute() methods. 356168Snate@binkert.orgdef template BasicExecDeclare {{ 366157Snate@binkert.org Fault execute(%(CPU_exec_context)s *, Trace::InstRecord *) const; 376157Snate@binkert.org}}; 386157Snate@binkert.org 396157Snate@binkert.org// Basic instruction class declaration template. 406157Snate@binkert.orgdef template BasicDeclare {{ 41 /** 42 * Static instruction class for "%(mnemonic)s". 43 */ 44 class %(class_name)s : public %(base_class)s 45 { 46 public: 47 /// Constructor. 48 %(class_name)s(MachInst machInst); 49 %(BasicExecDeclare)s 50 }; 51}}; 52 53// Basic instruction class constructor template. 54def template BasicConstructor {{ 55 %(class_name)s::%(class_name)s(MachInst machInst) : %(base_class)s("%(mnemonic)s", machInst, %(op_class)s) 56 { 57 %(constructor)s; 58 } 59}}; 60 61 62// Basic instruction class execute method template. 63def template BasicExecute {{ 64 Fault %(class_name)s::execute(%(CPU_exec_context)s *xc, Trace::InstRecord *traceData) const 65 { 66 Fault fault = NoFault; 67 68 %(fp_enable_check)s; 69 %(op_decl)s; 70 %(op_rd)s; 71 if(fault == NoFault) 72 { 73 %(code)s; 74 if(fault == NoFault){ 75 %(op_wb)s; 76 } 77 } 78 return fault; 79 } 80}}; 81 82// Basic decode template. 83def template BasicDecode {{ 84 return new %(class_name)s(machInst); 85}}; 86 87// Basic decode template, passing mnemonic in as string arg to constructor. 88def template BasicDecodeWithMnemonic {{ 89 return new %(class_name)s("%(mnemonic)s", machInst); 90}}; 91 92// The most basic instruction format... 93def format BasicOp(code, *flags) {{ 94 iop = InstObjParams(name, Name, 'MipsStaticInst', code, flags) 95 header_output = BasicDeclare.subst(iop) 96 decoder_output = BasicConstructor.subst(iop) 97 decode_block = BasicDecode.subst(iop) 98 exec_output = BasicExecute.subst(iop) 99}}; 100