bitfields.isa revision 6743:f9e317156e45
1// -*- mode:c++ -*- 2 3// Copyright (c) 2007-2008 The Florida State University 4// All rights reserved. 5// 6// Redistribution and use in source and binary forms, with or without 7// modification, are permitted provided that the following conditions are 8// met: redistributions of source code must retain the above copyright 9// notice, this list of conditions and the following disclaimer; 10// redistributions in binary form must reproduce the above copyright 11// notice, this list of conditions and the following disclaimer in the 12// documentation and/or other materials provided with the distribution; 13// neither the name of the copyright holders nor the names of its 14// contributors may be used to endorse or promote products derived from 15// this software without specific prior written permission. 16// 17// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 18// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 19// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 20// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 21// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 22// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 23// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 27// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28// 29// Authors: Stephen Hines 30 31//////////////////////////////////////////////////////////////////// 32// 33// Bitfield definitions. 34// 35 36// Opcode fields 37def bitfield ENCODING encoding; 38def bitfield OPCODE opcode; 39def bitfield MEDIA_OPCODE mediaOpcode; 40def bitfield MEDIA_OPCODE2 mediaOpcode2; 41def bitfield OPCODE_24 opcode24; 42def bitfield OPCODE_23_20 opcode23_20; 43def bitfield OPCODE_23_21 opcode23_21; 44def bitfield OPCODE_22 opcode22; 45def bitfield OPCODE_20 opcode20; 46def bitfield OPCODE_19 opcode19; 47def bitfield OPCODE_18 opcode18; 48def bitfield OPCODE_15_12 opcode15_12; 49def bitfield OPCODE_15 opcode15; 50def bitfield MISC_OPCODE miscOpcode; 51def bitfield OPCODE_7 opcode7; 52def bitfield OPCODE_4 opcode4; 53 54def bitfield IS_MISC isMisc; 55def bitfield SEVEN_AND_FOUR sevenAndFour; 56 57// Other 58def bitfield COND_CODE condCode; 59def bitfield S_FIELD sField; 60def bitfield RN rn; 61def bitfield RD rd; 62def bitfield SHIFT_SIZE shiftSize; 63def bitfield SHIFT shift; 64def bitfield RM rm; 65 66def bitfield RS rs; 67 68def bitfield PUSWL puswl; 69def bitfield PREPOST puswl.prepost; 70def bitfield UP puswl.up; 71def bitfield PSRUSER puswl.psruser; 72def bitfield WRITEBACK puswl.writeback; 73def bitfield LOADOP puswl.loadOp; 74 75def bitfield PUBWL pubwl; 76 77def bitfield IMM imm; 78 79def bitfield IMMED_11_0 immed11_0; 80 81def bitfield IMMED_HI_11_8 immedHi11_8; 82def bitfield IMMED_LO_3_0 immedLo3_0; 83 84def bitfield IMMED_23_0 immed23_0; 85 86def bitfield CPNUM cpNum; 87// Note that FP Regs are only 3 bits 88def bitfield FN fn; 89def bitfield FD fd; 90def bitfield FPREGIMM fpRegImm; 91// We can just use 3:0 for FM since the hard-wired FP regs are handled in 92// float_regfile.hh 93def bitfield FM fm; 94def bitfield FPIMM fpImm; 95def bitfield PUNWL punwl; 96 97// M5 instructions 98def bitfield M5FUNC m5Func; 99 100