src/arch/arm/isa/bitfields.isa

   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
  49 def bitfield ENCODING      encoding;
  50 def bitfield OPCODE        opcode;
  51 def bitfield MEDIA_OPCODE  mediaOpcode;
  52 def bitfield MEDIA_OPCODE2 mediaOpcode2;
  53 def bitfield USEIMM        useImm;
  54 def bitfield OPCODE_24     opcode24;
  55 def bitfield OPCODE_23_20  opcode23_20;
  56 def bitfield OPCODE_23_21  opcode23_21;
  57 def bitfield OPCODE_22     opcode22;
  58 def bitfield OPCODE_20     opcode20;
  59 def bitfield OPCODE_19_16  opcode19_16;
  60 def bitfield OPCODE_19     opcode19;
  61 def bitfield OPCODE_18     opcode18;
  62 def bitfield OPCODE_15_12  opcode15_12;
  63 def bitfield OPCODE_15     opcode15;
  64 def bitfield MISC_OPCODE   miscOpcode;
  65 def bitfield OPC2          opc2;
  66 def bitfield OPCODE_7      opcode7;
  67 def bitfield OPCODE_6      opcode6;
  68 def bitfield OPCODE_4      opcode4;
  69
  70 def bitfield IS_MISC       isMisc;
  71 def bitfield SEVEN_AND_FOUR sevenAndFour;
  72
  73 def bitfield THUMB         thumb;
  74 def bitfield BIGTHUMB      bigThumb;
  75
  76 // Other
  77 def bitfield COND_CODE     condCode;
  78 def bitfield S_FIELD       sField;
  79 def bitfield RN            rn;
  80 def bitfield RD            rd;
  81 def bitfield RT            rt;
  82 def bitfield SHIFT_SIZE    shiftSize;
  83 def bitfield SHIFT         shift;
  84 def bitfield RM            rm;
  85
  86 def bitfield RS            rs;
  87
  88 def bitfield PUSWL         puswl;
  89 def bitfield PREPOST       puswl.prepost;
  90 def bitfield UP               puswl.up;
  91 def bitfield PSRUSER       puswl.psruser;
  92 def bitfield WRITEBACK     puswl.writeback;
  93 def bitfield LOADOP        puswl.loadOp;
  94
  95 def bitfield PUBWL         pubwl;
  96
  97 def bitfield IMM           imm;
  98
  99 def bitfield IMMED_11_0    immed11_0;
 100 def bitfield IMMED_7_0     immed7_0;
 101
 102 def bitfield IMMED_HI_11_8 immedHi11_8;
 103 def bitfield IMMED_LO_3_0  immedLo3_0;
 104
 105 def bitfield IMMED_23_0    immed23_0;
 106
 107 def bitfield CPNUM         cpNum;
 108 // Note that FP Regs are only 3 bits
 109 def bitfield FN            fn;
 110 def bitfield FD            fd;
 111 def bitfield FPREGIMM      fpRegImm;
 112 // We can just use 3:0 for FM since the hard-wired FP regs are handled in
 113 // float_regfile.hh
 114 def bitfield FM            fm;
 115 def bitfield FPIMM         fpImm;
 116 def bitfield PUNWL         punwl;
 117
 118 // M5 instructions
 119 def bitfield M5FUNC        m5Func;
 120
 121 // 16 bit thumb bitfields
 122 def bitfield TOPCODE_15_13  topcode15_13;
 123 def bitfield TOPCODE_13_11  topcode13_11;
 124 def bitfield TOPCODE_12_11  topcode12_11;
 125 def bitfield TOPCODE_12_10  topcode12_10;
 126 def bitfield TOPCODE_11_9   topcode11_9;
 127 def bitfield TOPCODE_11_8   topcode11_8;
 128 def bitfield TOPCODE_10_9   topcode10_9;
 129 def bitfield TOPCODE_10_8   topcode10_8;
 130 def bitfield TOPCODE_9_6    topcode9_6;
 131 def bitfield TOPCODE_7      topcode7;
 132 def bitfield TOPCODE_7_6    topcode7_6;
 133 def bitfield TOPCODE_7_5    topcode7_5;
 134 def bitfield TOPCODE_7_4    topcode7_4;
 135 def bitfield TOPCODE_3_0    topcode3_0;
 136
 137 // 32 bit thumb bitfields
 138 def bitfield HTOPCODE_12_11 htopcode12_11;
 139 def bitfield HTOPCODE_10_9  htopcode10_9;
 140 def bitfield HTOPCODE_9     htopcode9;
 141 def bitfield HTOPCODE_9_8   htopcode9_8;
 142 def bitfield HTOPCODE_9_5   htopcode9_5;
 143 def bitfield HTOPCODE_9_4   htopcode9_4;
 144 def bitfield HTOPCODE_8     htopcode8;
 145 def bitfield HTOPCODE_8_7   htopcode8_7;
 146 def bitfield HTOPCODE_8_6   htopcode8_6;
 147 def bitfield HTOPCODE_8_5   htopcode8_5;
 148 def bitfield HTOPCODE_7     htopcode7;
 149 def bitfield HTOPCODE_7_5   htopcode7_5;
 150 def bitfield HTOPCODE_6_5   htopcode6_5;
 151 def bitfield HTOPCODE_5_4   htopcode5_4;
 152 def bitfield HTOPCODE_4     htopcode4;
 153
 154 def bitfield HTRN           htrn;
 155 def bitfield HTS            hts;
 156
 157 def bitfield LTOPCODE_15    ltopcode15;
 158 def bitfield LTOPCODE_11_8  ltopcode11_8;
 159 def bitfield LTOPCODE_7_6   ltopcode7_6;
 160 def bitfield LTOPCODE_7_4   ltopcode7_4;
 161 def bitfield LTOPCODE_4     ltopcode4;
 162
 163 def bitfield LTRD           ltrd;
 164 def bitfield LTCOPROC       ltcoproc;