bitfields.isa revision 7101:cc7b579ba8b2
1// -*- mode:c++ -*- 2 3// Copyright (c) 2010 ARM Limited 4// All rights reserved 5// 6// The license below extends only to copyright in the software and shall 7// not be construed as granting a license to any other intellectual 8// property including but not limited to intellectual property relating 9// to a hardware implementation of the functionality of the software 10// licensed hereunder. You may use the software subject to the license 11// terms below provided that you ensure that this notice is replicated 12// unmodified and in its entirety in all distributions of the software, 13// modified or unmodified, in source code or in binary form. 14// 15// Copyright (c) 2007-2008 The Florida State University 16// All rights reserved. 17// 18// Redistribution and use in source and binary forms, with or without 19// modification, are permitted provided that the following conditions are 20// met: redistributions of source code must retain the above copyright 21// notice, this list of conditions and the following disclaimer; 22// redistributions in binary form must reproduce the above copyright 23// notice, this list of conditions and the following disclaimer in the 24// documentation and/or other materials provided with the distribution; 25// neither the name of the copyright holders nor the names of its 26// contributors may be used to endorse or promote products derived from 27// this software without specific prior written permission. 28// 29// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 30// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 31// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 32// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 33// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 34// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 35// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 36// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 37// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 38// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 39// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 40// 41// Authors: Stephen Hines 42 43//////////////////////////////////////////////////////////////////// 44// 45// Bitfield definitions. 46// 47 48// Opcode fields 49def bitfield ENCODING encoding; 50def bitfield OPCODE opcode; 51def bitfield MEDIA_OPCODE mediaOpcode; 52def bitfield MEDIA_OPCODE2 mediaOpcode2; 53def bitfield USEIMM useImm; 54def bitfield OPCODE_24 opcode24; 55def bitfield OPCODE_23_20 opcode23_20; 56def bitfield OPCODE_23_21 opcode23_21; 57def bitfield OPCODE_22 opcode22; 58def bitfield OPCODE_20 opcode20; 59def bitfield OPCODE_19 opcode19; 60def bitfield OPCODE_18 opcode18; 61def bitfield OPCODE_15_12 opcode15_12; 62def bitfield OPCODE_15 opcode15; 63def bitfield MISC_OPCODE miscOpcode; 64def bitfield OPC2 opc2; 65def bitfield OPCODE_7 opcode7; 66def bitfield OPCODE_4 opcode4; 67 68def bitfield IS_MISC isMisc; 69def bitfield SEVEN_AND_FOUR sevenAndFour; 70 71def bitfield THUMB thumb; 72def bitfield BIGTHUMB bigThumb; 73 74// Other 75def bitfield COND_CODE condCode; 76def bitfield S_FIELD sField; 77def bitfield RN rn; 78def bitfield RD rd; 79def bitfield SHIFT_SIZE shiftSize; 80def bitfield SHIFT shift; 81def bitfield RM rm; 82 83def bitfield RS rs; 84 85def bitfield PUSWL puswl; 86def bitfield PREPOST puswl.prepost; 87def bitfield UP puswl.up; 88def bitfield PSRUSER puswl.psruser; 89def bitfield WRITEBACK puswl.writeback; 90def bitfield LOADOP puswl.loadOp; 91 92def bitfield PUBWL pubwl; 93 94def bitfield IMM imm; 95 96def bitfield IMMED_11_0 immed11_0; 97 98def bitfield IMMED_HI_11_8 immedHi11_8; 99def bitfield IMMED_LO_3_0 immedLo3_0; 100 101def bitfield IMMED_23_0 immed23_0; 102 103def bitfield CPNUM cpNum; 104// Note that FP Regs are only 3 bits 105def bitfield FN fn; 106def bitfield FD fd; 107def bitfield FPREGIMM fpRegImm; 108// We can just use 3:0 for FM since the hard-wired FP regs are handled in 109// float_regfile.hh 110def bitfield FM fm; 111def bitfield FPIMM fpImm; 112def bitfield PUNWL punwl; 113 114// M5 instructions 115def bitfield M5FUNC m5Func; 116 117