bitfields.isa revision 6247:094b7ea0b180
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 OPCODE <27:25>; 38def bitfield OPCODE_27_25 <27:25>; 39def bitfield OPCODE_24_21 <24:21>; 40def bitfield OPCODE_24_23 <24:23>; 41def bitfield OPCODE_24 <24:24>; 42def bitfield OPCODE_23_20 <23:20>; 43def bitfield OPCODE_23_21 <23:21>; 44def bitfield OPCODE_23 <23:23>; 45def bitfield OPCODE_22_8 <22: 8>; 46def bitfield OPCODE_22_21 <22:21>; 47def bitfield OPCODE_22 <22:22>; 48def bitfield OPCODE_21_20 <21:20>; 49def bitfield OPCODE_20 <20:20>; 50def bitfield OPCODE_19_18 <19:18>; 51def bitfield OPCODE_19 <19:19>; 52def bitfield OPCODE_15_12 <15:12>; 53def bitfield OPCODE_15 <15:15>; 54def bitfield OPCODE_9 < 9: 9>; 55def bitfield OPCODE_7_4 < 7: 4>; 56def bitfield OPCODE_7_5 < 7: 5>; 57def bitfield OPCODE_7_6 < 7: 6>; 58def bitfield OPCODE_7 < 7: 7>; 59def bitfield OPCODE_6_5 < 6: 5>; 60def bitfield OPCODE_6 < 6: 6>; 61def bitfield OPCODE_5 < 5: 5>; 62def bitfield OPCODE_4 < 4: 4>; 63 64// Other 65def bitfield COND_CODE <31:28>; 66def bitfield S_FIELD <20:20>; 67def bitfield RN <19:16>; 68def bitfield RD <15:12>; 69def bitfield SHIFT_SIZE <11: 7>; 70def bitfield SHIFT < 6: 5>; 71def bitfield RM < 3: 0>; 72 73def bitfield RS <11: 8>; 74 75def bitfield RDUP <19:16>; 76def bitfield RNDN <15:12>; 77 78def bitfield RDHI <15:12>; 79def bitfield RDLO <11: 8>; 80 81def bitfield U_FIELD <23:23>; 82 83def bitfield PUSWL <24:20>; 84def bitfield PREPOST <24:24>; 85def bitfield UP <23:23>; 86def bitfield PSRUSER <22:22>; 87def bitfield WRITEBACK <21:21>; 88def bitfield LOADOP <20:20>; 89 90def bitfield PUBWL <24:20>; 91def bitfield PUIWL <24:20>; 92def bitfield BYTEACCESS <22:22>; 93 94def bitfield LUAS <23:20>; 95 96def bitfield IMM < 7: 0>; 97def bitfield IMMED_7_4 < 7: 4>; 98def bitfield IMMED_3_0 < 3: 0>; 99 100def bitfield F_MSR <19:19>; 101def bitfield S_MSR <18:18>; 102def bitfield X_MSR <17:17>; 103def bitfield C_MSR <16:16>; 104 105def bitfield Y_6 < 6: 6>; 106def bitfield X_5 < 5: 5>; 107 108def bitfield IMMED_15_4 <15: 4>; 109 110def bitfield W_FIELD <21:21>; 111 112def bitfield ROTATE <11: 8>; 113def bitfield IMMED_7_0 < 7: 0>; 114 115def bitfield T_FIELD <21:21>; 116def bitfield IMMED_11_0 <11: 0>; 117 118def bitfield IMMED_20_16 <20:16>; 119def bitfield IMMED_19_16 <19:16>; 120 121def bitfield IMMED_HI_11_8 <11: 8>; 122def bitfield IMMED_LO_3_0 < 3: 0>; 123 124def bitfield ROT <11:10>; 125 126def bitfield R_FIELD < 5: 5>; 127 128def bitfield CARET <22:22>; 129def bitfield REGLIST <15: 0>; 130 131def bitfield OFFSET <23: 0>; 132def bitfield COPRO <11: 8>; 133def bitfield OP1_7_4 < 7: 4>; 134def bitfield CM < 3: 0>; 135 136def bitfield L_FIELD <22:22>; 137def bitfield CD <15:12>; 138def bitfield OPTION < 7: 0>; 139 140def bitfield OP1_23_20 <23:20>; 141def bitfield CN <19:16>; 142def bitfield OP2_7_5 < 7: 5>; 143 144def bitfield OP1_23_21 <23:21>; 145 146def bitfield IMMED_23_0 <23: 0>; 147def bitfield M_FIELD <17:17>; 148def bitfield A_FIELD < 8: 8>; 149def bitfield I_FIELD < 7: 7>; 150def bitfield F_FIELD < 6: 6>; 151def bitfield MODE < 4: 0>; 152 153def bitfield A_BLX <24:24>; 154 155def bitfield CPNUM <11: 8>; 156// Note that FP Regs are only 3 bits 157def bitfield FN <18:16>; 158def bitfield FD <14:12>; 159def bitfield FPREGIMM < 3: 3>; 160// We can just use 3:0 for FM since the hard-wired FP regs are handled in 161// float_regfile.hh 162def bitfield FM < 3: 0>; 163def bitfield FPIMM < 2: 0>; 164def bitfield PUNWL <24:20>; 165 166// M5 instructions 167def bitfield M5FUNC <7:0>; 168 169