basic.isa revision 12234
1// Copyright (c) 2007 The Hewlett-Packard Development Company 2// All rights reserved. 3// 4// The license below extends only to copyright in the software and shall 5// not be construed as granting a license to any other intellectual 6// property including but not limited to intellectual property relating 7// to a hardware implementation of the functionality of the software 8// licensed hereunder. You may use the software subject to the license 9// terms below provided that you ensure that this notice is replicated 10// unmodified and in its entirety in all distributions of the software, 11// modified or unmodified, in source code or in binary form. 12// 13// Copyright (c) 2007 The Regents of The University of Michigan 14// All rights reserved. 15// 16// Redistribution and use in source and binary forms, with or without 17// modification, are permitted provided that the following conditions are 18// met: redistributions of source code must retain the above copyright 19// notice, this list of conditions and the following disclaimer; 20// redistributions in binary form must reproduce the above copyright 21// notice, this list of conditions and the following disclaimer in the 22// documentation and/or other materials provided with the distribution; 23// neither the name of the copyright holders nor the names of its 24// contributors may be used to endorse or promote products derived from 25// this software without specific prior written permission. 26// 27// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 28// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 29// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 30// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 31// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 32// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 33// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 34// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 35// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 36// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 37// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 38// 39// Authors: Gabe Black 40 41// Declarations for execute() methods. 42def template BasicExecDeclare {{ 43 Fault execute(ExecContext *, Trace::InstRecord *) const; 44}}; 45 46// Definitions of execute methods that panic. 47def template BasicExecPanic {{ 48 Fault execute(ExecContext *, Trace::InstRecord *) const 49 { 50 panic("Execute method called when it shouldn't!"); 51 M5_DUMMY_RETURN 52 } 53}}; 54 55// Basic instruction class declaration template. 56def template BasicDeclare {{ 57 /** 58 * Static instruction class for "%(mnemonic)s". 59 */ 60 class %(class_name)s : public %(base_class)s 61 { 62 public: 63 // Constructor. 64 %(class_name)s(ExtMachInst machInst); 65 %(BasicExecDeclare)s 66 }; 67}}; 68 69// Basic instruction class constructor template. 70def template BasicConstructor {{ 71 %(class_name)s::%(class_name)s(ExtMachInst machInst) 72 : %(base_class)s("%(mnemonic)s", machInst, %(op_class)s) 73 { 74 %(constructor)s; 75 } 76}}; 77 78// Basic instruction class execute method template. 79def template BasicExecute {{ 80 Fault %(class_name)s::execute(ExecContext *xc, 81 Trace::InstRecord *traceData) const 82 { 83 Fault fault = NoFault; 84 85 %(fp_enable_check)s; 86 %(op_decl)s; 87 %(op_rd)s; 88 %(code)s; 89 90 if(fault == NoFault) 91 { 92 %(op_wb)s; 93 } 94 return fault; 95 } 96}}; 97 98// Basic decode template. 99def template BasicDecode {{ 100 return new %(class_name)s(machInst); 101}}; 102 103// Basic decode template, passing mnemonic in as string arg to constructor. 104def template BasicDecodeWithMnemonic {{ 105 return new %(class_name)s("%(mnemonic)s", machInst); 106}}; 107 108def format BasicOperate(code, *flags) {{ 109 iop = InstObjParams(name, Name, 'X86ISA::X86StaticInst', code, flags) 110 header_output = BasicDeclare.subst(iop) 111 decoder_output = BasicConstructor.subst(iop) 112 decode_block = BasicDecode.subst(iop) 113 exec_output = BasicExecute.subst(iop) 114}}; 115