bitfields.isa revision 4541
14158Sgblack@eecs.umich.edu// Copyright (c) 2007 The Hewlett-Packard Development Company 24158Sgblack@eecs.umich.edu// All rights reserved. 34158Sgblack@eecs.umich.edu// 44158Sgblack@eecs.umich.edu// Redistribution and use of this software in source and binary forms, 54158Sgblack@eecs.umich.edu// with or without modification, are permitted provided that the 64158Sgblack@eecs.umich.edu// following conditions are met: 74158Sgblack@eecs.umich.edu// 84158Sgblack@eecs.umich.edu// The software must be used only for Non-Commercial Use which means any 94158Sgblack@eecs.umich.edu// use which is NOT directed to receiving any direct monetary 104158Sgblack@eecs.umich.edu// compensation for, or commercial advantage from such use. Illustrative 114158Sgblack@eecs.umich.edu// examples of non-commercial use are academic research, personal study, 124158Sgblack@eecs.umich.edu// teaching, education and corporate research & development. 134158Sgblack@eecs.umich.edu// Illustrative examples of commercial use are distributing products for 144158Sgblack@eecs.umich.edu// commercial advantage and providing services using the software for 154158Sgblack@eecs.umich.edu// commercial advantage. 164158Sgblack@eecs.umich.edu// 174158Sgblack@eecs.umich.edu// If you wish to use this software or functionality therein that may be 184158Sgblack@eecs.umich.edu// covered by patents for commercial use, please contact: 194158Sgblack@eecs.umich.edu// Director of Intellectual Property Licensing 204158Sgblack@eecs.umich.edu// Office of Strategy and Technology 214158Sgblack@eecs.umich.edu// Hewlett-Packard Company 224158Sgblack@eecs.umich.edu// 1501 Page Mill Road 234158Sgblack@eecs.umich.edu// Palo Alto, California 94304 244158Sgblack@eecs.umich.edu// 254158Sgblack@eecs.umich.edu// Redistributions of source code must retain the above copyright notice, 264158Sgblack@eecs.umich.edu// this list of conditions and the following disclaimer. Redistributions 274158Sgblack@eecs.umich.edu// in binary form must reproduce the above copyright notice, this list of 284158Sgblack@eecs.umich.edu// conditions and the following disclaimer in the documentation and/or 294158Sgblack@eecs.umich.edu// other materials provided with the distribution. Neither the name of 304158Sgblack@eecs.umich.edu// the COPYRIGHT HOLDER(s), HEWLETT-PACKARD COMPANY, nor the names of its 314158Sgblack@eecs.umich.edu// contributors may be used to endorse or promote products derived from 324158Sgblack@eecs.umich.edu// this software without specific prior written permission. No right of 334158Sgblack@eecs.umich.edu// sublicense is granted herewith. Derivatives of the software and 344158Sgblack@eecs.umich.edu// output created using the software may be prepared, but only for 354158Sgblack@eecs.umich.edu// Non-Commercial Uses. Derivatives of the software may be shared with 364158Sgblack@eecs.umich.edu// others provided: (i) the others agree to abide by the list of 374158Sgblack@eecs.umich.edu// conditions herein which includes the Non-Commercial Use restrictions; 384158Sgblack@eecs.umich.edu// and (ii) such Derivatives of the software include the above copyright 394158Sgblack@eecs.umich.edu// notice to acknowledge the contribution from this software where 404158Sgblack@eecs.umich.edu// applicable, this list of conditions and the disclaimer below. 414158Sgblack@eecs.umich.edu// 424158Sgblack@eecs.umich.edu// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 434158Sgblack@eecs.umich.edu// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 444158Sgblack@eecs.umich.edu// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 454158Sgblack@eecs.umich.edu// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 464158Sgblack@eecs.umich.edu// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 474158Sgblack@eecs.umich.edu// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 484158Sgblack@eecs.umich.edu// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 494158Sgblack@eecs.umich.edu// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 504158Sgblack@eecs.umich.edu// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 514158Sgblack@eecs.umich.edu// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 524158Sgblack@eecs.umich.edu// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 534158Sgblack@eecs.umich.edu// 544158Sgblack@eecs.umich.edu// Authors: Gabe Black 554158Sgblack@eecs.umich.edu 564158Sgblack@eecs.umich.edu//////////////////////////////////////////////////////////////////// 574158Sgblack@eecs.umich.edu// 584158Sgblack@eecs.umich.edu// Bitfield definitions. 594158Sgblack@eecs.umich.edu// 604158Sgblack@eecs.umich.edu 614276Sgblack@eecs.umich.edu//Prefixes 624276Sgblack@eecs.umich.edudef bitfield REX rex; 634276Sgblack@eecs.umich.edudef bitfield LEGACY legacy; 644158Sgblack@eecs.umich.edu 654276Sgblack@eecs.umich.edu// Pieces of the opcode 664276Sgblack@eecs.umich.edudef bitfield OPCODE_NUM opcode.num; 674276Sgblack@eecs.umich.edudef bitfield OPCODE_PREFIXA opcode.prefixA; 684276Sgblack@eecs.umich.edudef bitfield OPCODE_PREFIXB opcode.prefixB; 694276Sgblack@eecs.umich.edudef bitfield OPCODE_OP opcode.op; 704276Sgblack@eecs.umich.edu//The top 5 bits of the opcode tend to split the instructions into groups 714276Sgblack@eecs.umich.edudef bitfield OPCODE_OP_TOP5 opcode.op.top5; 724276Sgblack@eecs.umich.edudef bitfield OPCODE_OP_BOTTOM3 opcode.op.bottom3; 734276Sgblack@eecs.umich.edu 744276Sgblack@eecs.umich.edu// Immediate fields 754276Sgblack@eecs.umich.edudef bitfield IMMEDIATE immediate; 764276Sgblack@eecs.umich.edudef bitfield DISPLACEMENT displacement; 774276Sgblack@eecs.umich.edu 784276Sgblack@eecs.umich.edu//Modifier bytes 794276Sgblack@eecs.umich.edudef bitfield MODRM modRM; 804276Sgblack@eecs.umich.edudef bitfield MODRM_MOD modRM.mod; 814276Sgblack@eecs.umich.edudef bitfield MODRM_REG modRM.reg; 824276Sgblack@eecs.umich.edudef bitfield MODRM_RM modRM.rm; 834276Sgblack@eecs.umich.edu 844276Sgblack@eecs.umich.edudef bitfield SIB sib; 854276Sgblack@eecs.umich.edudef bitfield SIB_SCALE sib.scale; 864276Sgblack@eecs.umich.edudef bitfield SIB_INDEX sib.index; 874276Sgblack@eecs.umich.edudef bitfield SIB_BASE sib.base; 884526Sgblack@eecs.umich.edu 894526Sgblack@eecs.umich.edudef bitfield OPSIZE opSize; 904541Sgblack@eecs.umich.edudef bitfield ADDRSIZE addrSize; 91