// Copyright (c) 2007 The Hewlett-Packard Development Company
// All rights reserved.
//
// Redistribution and use of this software in source and binary forms,
// with or without modification, are permitted provided that the
// following conditions are met:
//
// The software must be used only for Non-Commercial Use which means any
// use which is NOT directed to receiving any direct monetary
// compensation for, or commercial advantage from such use.  Illustrative
// examples of non-commercial use are academic research, personal study,
// teaching, education and corporate research & development.
// Illustrative examples of commercial use are distributing products for
// commercial advantage and providing services using the software for
// commercial advantage.
//
// If you wish to use this software or functionality therein that may be
// covered by patents for commercial use, please contact:
//     Director of Intellectual Property Licensing
//     Office of Strategy and Technology
//     Hewlett-Packard Company
//     1501 Page Mill Road
//     Palo Alto, California  94304
//
// Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.  Redistributions
// in binary form must reproduce the above copyright notice, this list of
// conditions and the following disclaimer in the documentation and/or
// other materials provided with the distribution.  Neither the name of
// the COPYRIGHT HOLDER(s), HEWLETT-PACKARD COMPANY, nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.  No right of
// sublicense is granted herewith.  Derivatives of the software and
// output created using the software may be prepared, but only for
// Non-Commercial Uses.  Derivatives of the software may be shared with
// others provided: (i) the others agree to abide by the list of
// conditions herein which includes the Non-Commercial Use restrictions;
// and (ii) such Derivatives of the software include the above copyright
// notice to acknowledge the contribution from this software where
// applicable, this list of conditions and the disclaimer below.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Authors: Gabe Black

////////////////////////////////////////////////////////////////////
//
// Bitfield definitions.
//

//REX prefix
def bitfield REX rex;
def bitfield REX_PRESENT rex.present;
def bitfield REX_W rex.w;
def bitfield REX_R rex.r;
def bitfield REX_X rex.x;
def bitfield REX_B rex.b;

//Legacy prefixes
def bitfield LEGACY legacy;
def bitfield LEGACY_DECODEVAL legacy.decodeVal;
def bitfield LEGACY_REPNE legacy.repne;
def bitfield LEGACY_REP legacy.rep;
def bitfield LEGACY_LOCK legacy.lock;
def bitfield LEGACY_OP legacy.op;
def bitfield LEGACY_ADDR legacy.addr;
def bitfield LEGACY_SEG legacy.seg;

// Pieces of the opcode
def bitfield OPCODE_NUM opcode.num;
def bitfield OPCODE_PREFIXA opcode.prefixA;
def bitfield OPCODE_PREFIXB opcode.prefixB;
def bitfield OPCODE_OP opcode.op;
//The top 5 bits of the opcode tend to split the instructions into groups
def bitfield OPCODE_OP_TOP5 opcode.op.top5;
def bitfield OPCODE_OP_BOTTOM3 opcode.op.bottom3;

// Immediate fields
def bitfield IMMEDIATE immediate;
def bitfield DISPLACEMENT displacement;

//Modifier bytes
def bitfield MODRM modRM;
def bitfield MODRM_MOD modRM.mod;
def bitfield MODRM_REG modRM.reg;
def bitfield MODRM_RM modRM.rm;

def bitfield SIB sib;
def bitfield SIB_SCALE sib.scale;
def bitfield SIB_INDEX sib.index;
def bitfield SIB_BASE sib.base;

def bitfield OPSIZE opSize;
def bitfield ADDRSIZE addrSize;
def bitfield STACKSIZE stackSize;

def bitfield MODE mode;
def bitfield MODE_MODE mode.mode;
def bitfield MODE_SUBMODE mode.submode;