bitfields.isa revision 6268:0f869e59c079
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 OPCODE_24_23 opcode24_23; 40def bitfield OPCODE_24 opcode24; 41def bitfield OPCODE_23_20 opcode23_20; 42def bitfield OPCODE_23_21 opcode23_21; 43def bitfield OPCODE_23 opcode23; 44def bitfield OPCODE_22_8 opcode22_8; 45def bitfield OPCODE_22_21 opcode22_21; 46def bitfield OPCODE_22 opcode22; 47def bitfield OPCODE_21_20 opcode21_20; 48def bitfield OPCODE_20 opcode20; 49def bitfield OPCODE_19_18 opcode19_18; 50def bitfield OPCODE_19 opcode19; 51def bitfield OPCODE_15_12 opcode15_12; 52def bitfield OPCODE_15 opcode15; 53def bitfield OPCODE_9 opcode9; 54def bitfield MISC_OPCODE miscOpcode; 55def bitfield OPCODE_7_5 opcode7_5; 56def bitfield OPCODE_7_6 opcode7_6; 57def bitfield OPCODE_7 opcode7; 58def bitfield OPCODE_6_5 opcode6_5; 59def bitfield OPCODE_6 opcode6; 60def bitfield OPCODE_5 opcode5; 61def bitfield OPCODE_4 opcode4; 62 63def bitfield IS_MISC isMisc; 64def bitfield SEVEN_AND_FOUR sevenAndFour; 65 66// Other 67def bitfield COND_CODE condCode; 68def bitfield S_FIELD sField; 69def bitfield RN rn; 70def bitfield RD rd; 71def bitfield SHIFT_SIZE shiftSize; 72def bitfield SHIFT shift; 73def bitfield RM rm; 74 75def bitfield RS rs; 76 77def bitfield RDUP rdup; 78def bitfield RNDN rddn; 79 80def bitfield RDHI rdhi; 81def bitfield RDLO rdlo; 82 83def bitfield U_FIELD uField; 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; 93def bitfield PUIWL puiwl; 94def bitfield BYTEACCESS byteAccess; 95 96def bitfield LUAS luas; 97 98def bitfield IMM imm; 99def bitfield IMMED_7_4 immed7_4; 100def bitfield IMMED_3_0 immed3_0; 101 102def bitfield F_MSR msr.f; 103def bitfield S_MSR msr.s; 104def bitfield X_MSR msr.x; 105def bitfield C_MSR msr.c; 106 107def bitfield Y_6 y; 108def bitfield X_5 x; 109 110def bitfield IMMED_15_4 immed15_4; 111 112def bitfield W_FIELD wField; 113 114def bitfield ROTATE rotate; 115def bitfield IMMED_7_0 immed7_0; 116 117def bitfield T_FIELD tField; 118def bitfield IMMED_11_0 immed11_0; 119 120def bitfield IMMED_20_16 immed20_16; 121def bitfield IMMED_19_16 immed19_16; 122 123def bitfield IMMED_HI_11_8 immedHi11_8; 124def bitfield IMMED_LO_3_0 immedLo3_0; 125 126def bitfield ROT rot; 127 128def bitfield R_FIELD rField; 129 130def bitfield CARET caret; 131def bitfield REGLIST regList; 132 133def bitfield OFFSET offset; 134def bitfield COPRO copro; 135def bitfield OP1_7_4 op1_7_4; 136def bitfield CM cm; 137 138def bitfield L_FIELD lField; 139def bitfield CD cd; 140def bitfield OPTION option; 141 142def bitfield OP1_23_20 op1_23_20; 143def bitfield CN cn; 144def bitfield OP2_7_5 op2_7_5; 145 146def bitfield OP1_23_21 op1_23_21; 147 148def bitfield IMMED_23_0 immed23_0; 149def bitfield M_FIELD mField; 150def bitfield A_FIELD aField; 151def bitfield I_FIELD iField; 152def bitfield F_FIELD fField; 153def bitfield MODE mode; 154 155def bitfield A_BLX aBlx; 156 157def bitfield CPNUM cpNum; 158// Note that FP Regs are only 3 bits 159def bitfield FN fn; 160def bitfield FD fd; 161def bitfield FPREGIMM fpRegImm; 162// We can just use 3:0 for FM since the hard-wired FP regs are handled in 163// float_regfile.hh 164def bitfield FM fm; 165def bitfield FPIMM fpImm; 166def bitfield PUNWL punwl; 167 168// M5 instructions 169def bitfield M5FUNC m5Func; 170 171