string.isa revision 5125
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// String Instructions 61// 62////////////////////////////////////////////////////////////////////////// 63 64def format StringTestInst(*opTypeSet) {{ 65 allBlocks = OutputBlocks() 66 67 regBlocks = specializeInst(Name, list(opTypeSet), EmulEnv()) 68 eBlocks = specializeInst(Name + "_E", list(opTypeSet), EmulEnv()) 69 nBlocks = specializeInst(Name + "_N", list(opTypeSet), EmulEnv()) 70 71 for blocks in (regBlocks, eBlocks, nBlocks): 72 allBlocks.header_output += blocks.header_output 73 allBlocks.decoder_output += blocks.decoder_output 74 allBlocks.exec_output += blocks.exec_output 75 76 allBlocks.decode_block = ''' 77 if (LEGACY_REP) { 78 %s 79 } else if (LEGACY_REPNE) { 80 %s 81 } else { 82 %s 83 } 84 ''' % (eBlocks.decode_block, nBlocks.decode_block, regBlocks.decode_block) 85 86 (header_output, decoder_output, 87 decode_block, exec_output) = allBlocks.makeList() 88}}; 89 90def format StringInst(*opTypeSet) {{ 91 allBlocks = OutputBlocks() 92 93 regBlocks = specializeInst(Name, list(opTypeSet), EmulEnv()) 94 eBlocks = specializeInst(Name + "_E", list(opTypeSet), EmulEnv()) 95 96 for blocks in (regBlocks, eBlocks): 97 allBlocks.header_output += blocks.header_output 98 allBlocks.decoder_output += blocks.decoder_output 99 allBlocks.exec_output += blocks.exec_output 100 101 allBlocks.decode_block = ''' 102 if (LEGACY_REP) { 103 %s 104 } else if (LEGACY_REPNE) { 105 // The repne prefix is illegal 106 return new MicroFault(machInst, "illprefix", new InvalidOpcode); 107 } else { 108 %s 109 } 110 ''' % (eBlocks.decode_block, regBlocks.decode_block) 111 112 (header_output, decoder_output, 113 decode_block, exec_output) = allBlocks.makeList() 114}}; 115