basic.isa revision 3951
12089SN/A// -*- mode:c++ -*- 22022SN/A 32754Sksewell@umich.edu// Copyright (c) 2006 The Regents of The University of Michigan 42706Sksewell@umich.edu// All rights reserved. 52706Sksewell@umich.edu// 62706Sksewell@umich.edu// Redistribution and use in source and binary forms, with or without 72706Sksewell@umich.edu// modification, are permitted provided that the following conditions are 82706Sksewell@umich.edu// met: redistributions of source code must retain the above copyright 92706Sksewell@umich.edu// notice, this list of conditions and the following disclaimer; 102706Sksewell@umich.edu// redistributions in binary form must reproduce the above copyright 112706Sksewell@umich.edu// notice, this list of conditions and the following disclaimer in the 122706Sksewell@umich.edu// documentation and/or other materials provided with the distribution; 132706Sksewell@umich.edu// neither the name of the copyright holders nor the names of its 142706Sksewell@umich.edu// contributors may be used to endorse or promote products derived from 152706Sksewell@umich.edu// this software without specific prior written permission. 162706Sksewell@umich.edu// 172706Sksewell@umich.edu// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 182706Sksewell@umich.edu// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 192706Sksewell@umich.edu// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 202706Sksewell@umich.edu// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 212706Sksewell@umich.edu// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 222706Sksewell@umich.edu// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 232706Sksewell@umich.edu// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 242706Sksewell@umich.edu// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 252706Sksewell@umich.edu// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 262706Sksewell@umich.edu// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 272706Sksewell@umich.edu// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 282706Sksewell@umich.edu// 292935Sksewell@umich.edu// Authors: Steve Reinhardt 302935Sksewell@umich.edu// Korey Sewell 312706Sksewell@umich.edu 322022SN/A// Declarations for execute() methods. 332022SN/Adef template BasicExecDeclare {{ 342022SN/A Fault execute(%(CPU_exec_context)s *, Trace::InstRecord *) const; 352022SN/A}}; 362022SN/A 372022SN/A// Basic instruction class declaration template. 382022SN/Adef template BasicDeclare {{ 392022SN/A /** 402022SN/A * Static instruction class for "%(mnemonic)s". 412022SN/A */ 422022SN/A class %(class_name)s : public %(base_class)s 432022SN/A { 442686Sksewell@umich.edu public: 452022SN/A /// Constructor. 462022SN/A %(class_name)s(MachInst machInst); 472022SN/A %(BasicExecDeclare)s 482686Sksewell@umich.edu }; 492022SN/A}}; 502022SN/A 512022SN/A// Basic instruction class constructor template. 522022SN/Adef template BasicConstructor {{ 532022SN/A inline %(class_name)s::%(class_name)s(MachInst machInst) : %(base_class)s("%(mnemonic)s", machInst, %(op_class)s) 542022SN/A { 552022SN/A %(constructor)s; 562022SN/A } 572022SN/A}}; 582022SN/A 592686Sksewell@umich.edu 602022SN/A// Basic instruction class execute method template. 612022SN/Adef template BasicExecute {{ 622022SN/A Fault %(class_name)s::execute(%(CPU_exec_context)s *xc, Trace::InstRecord *traceData) const 632022SN/A { 642239SN/A Fault fault = NoFault; 652022SN/A 662022SN/A %(fp_enable_check)s; 672022SN/A %(op_decl)s; 682022SN/A %(op_rd)s; 692022SN/A %(code)s; 702022SN/A 712239SN/A if(fault == NoFault) 722022SN/A { 732104SN/A %(op_wb)s; 742022SN/A } 752022SN/A return fault; 762022SN/A } 772022SN/A}}; 782022SN/A 792022SN/A// Basic decode template. 802022SN/Adef template BasicDecode {{ 812022SN/A return new %(class_name)s(machInst); 822022SN/A}}; 832022SN/A 842022SN/A// Basic decode template, passing mnemonic in as string arg to constructor. 852022SN/Adef template BasicDecodeWithMnemonic {{ 862022SN/A return new %(class_name)s("%(mnemonic)s", machInst); 872022SN/A}}; 882022SN/A 892935Sksewell@umich.edu// The most basic instruction format... 902083SN/Adef format BasicOp(code, *flags) {{ 913951Sgblack@eecs.umich.edu iop = InstObjParams(name, Name, 'MipsStaticInst', code, flags) 922022SN/A header_output = BasicDeclare.subst(iop) 932022SN/A decoder_output = BasicConstructor.subst(iop) 942022SN/A decode_block = BasicDecode.subst(iop) 952022SN/A exec_output = BasicExecute.subst(iop) 962022SN/A}}; 97