include/opcode/arm.h

   1 /* ARM assembler/disassembler support.
   2    Copyright 2004 Free Software Foundation, Inc.
   3
   4    This file is part of GDB and GAS.
   5
   6    GDB and GAS are free software; you can redistribute it and/or
   7    modify it under the terms of the GNU General Public License as
   8    published by the Free Software Foundation; either version 1, or (at
   9    your option) any later version.
  10
  11    GDB and GAS are distributed in the hope that it will be useful, but
  12    WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14    General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with GDB or GAS; see the file COPYING.  If not, write to the
  18    Free Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
  19    02110-1301, USA.  */
  20
  21 /* The following bitmasks control CPU extensions:  */
  22 #define ARM_EXT_V1       0x00000001     /* All processors (core set).  */
  23 #define ARM_EXT_V2       0x00000002     /* Multiply instructions.  */
  24 #define ARM_EXT_V2S      0x00000004     /* SWP instructions.       */
  25 #define ARM_EXT_V3       0x00000008     /* MSR MRS.                */
  26 #define ARM_EXT_V3M      0x00000010     /* Allow long multiplies.  */
  27 #define ARM_EXT_V4       0x00000020     /* Allow half word loads.  */
  28 #define ARM_EXT_V4T      0x00000040     /* Thumb.                  */
  29 #define ARM_EXT_V5       0x00000080     /* Allow CLZ, etc.         */
  30 #define ARM_EXT_V5T      0x00000100     /* Improved interworking.  */
  31 #define ARM_EXT_V5ExP    0x00000200     /* DSP core set.           */
  32 #define ARM_EXT_V5E      0x00000400     /* DSP Double transfers.   */
  33 #define ARM_EXT_V5J      0x00000800     /* Jazelle extension.      */
  34 #define ARM_EXT_V6       0x00001000     /* ARM V6.                 */
  35 #define ARM_EXT_V6K      0x00002000     /* ARM V6K.                */
  36 #define ARM_EXT_V6Z      0x00004000     /* ARM V6Z.                */
  37 #define ARM_EXT_V6T2     0x00008000     /* Thumb-2.                */
  38
  39 /* Co-processor space extensions.  */
  40 #define ARM_CEXT_XSCALE   0x00000001    /* Allow MIA etc.          */
  41 #define ARM_CEXT_MAVERICK 0x00000002    /* Use Cirrus/DSP coprocessor.  */
  42 #define ARM_CEXT_IWMMXT   0x00000004    /* Intel Wireless MMX technology coprocessor.   */
  43
  44 #define FPU_ENDIAN_PURE  0x80000000     /* Pure-endian doubles.       */
  45 #define FPU_ENDIAN_BIG   0              /* Double words-big-endian.   */
  46 #define FPU_FPA_EXT_V1   0x40000000     /* Base FPA instruction set.  */
  47 #define FPU_FPA_EXT_V2   0x20000000     /* LFM/SFM.                   */
  48 #define FPU_MAVERICK     0x10000000     /* Cirrus Maverick.           */
  49 #define FPU_VFP_EXT_V1xD 0x08000000     /* Base VFP instruction set.  */
  50 #define FPU_VFP_EXT_V1   0x04000000     /* Double-precision insns.    */
  51 #define FPU_VFP_EXT_V2   0x02000000     /* ARM10E VFPr1.              */
  52
  53 /* Architectures are the sum of the base and extensions.  The ARM ARM (rev E)
  54    defines the following: ARMv3, ARMv3M, ARMv4xM, ARMv4, ARMv4TxM, ARMv4T,
  55    ARMv5xM, ARMv5, ARMv5TxM, ARMv5T, ARMv5TExP, ARMv5TE.  To these we add
  56    three more to cover cores prior to ARM6.  Finally, there are cores which
  57    implement further extensions in the co-processor space.  */
  58 #define ARM_AEXT_V1                       ARM_EXT_V1
  59 #define ARM_AEXT_V2     (ARM_AEXT_V1    | ARM_EXT_V2)
  60 #define ARM_AEXT_V2S    (ARM_AEXT_V2    | ARM_EXT_V2S)
  61 #define ARM_AEXT_V3     (ARM_AEXT_V2S   | ARM_EXT_V3)
  62 #define ARM_AEXT_V3M    (ARM_AEXT_V3    | ARM_EXT_V3M)
  63 #define ARM_AEXT_V4xM   (ARM_AEXT_V3    | ARM_EXT_V4)
  64 #define ARM_AEXT_V4     (ARM_AEXT_V3M   | ARM_EXT_V4)
  65 #define ARM_AEXT_V4TxM  (ARM_AEXT_V4xM  | ARM_EXT_V4T)
  66 #define ARM_AEXT_V4T    (ARM_AEXT_V4    | ARM_EXT_V4T)
  67 #define ARM_AEXT_V5xM   (ARM_AEXT_V4xM  | ARM_EXT_V5)
  68 #define ARM_AEXT_V5     (ARM_AEXT_V4    | ARM_EXT_V5)
  69 #define ARM_AEXT_V5TxM  (ARM_AEXT_V5xM  | ARM_EXT_V4T | ARM_EXT_V5T)
  70 #define ARM_AEXT_V5T    (ARM_AEXT_V5    | ARM_EXT_V4T | ARM_EXT_V5T)
  71 #define ARM_AEXT_V5TExP (ARM_AEXT_V5T   | ARM_EXT_V5ExP)
  72 #define ARM_AEXT_V5TE   (ARM_AEXT_V5TExP | ARM_EXT_V5E)
  73 #define ARM_AEXT_V5TEJ  (ARM_AEXT_V5TE  | ARM_EXT_V5J)
  74 #define ARM_AEXT_V6     (ARM_AEXT_V5TEJ | ARM_EXT_V6)
  75 #define ARM_AEXT_V6K    (ARM_AEXT_V6    | ARM_EXT_V6K)
  76 #define ARM_AEXT_V6Z    (ARM_AEXT_V6    | ARM_EXT_V6Z)
  77 #define ARM_AEXT_V6ZK   (ARM_AEXT_V6    | ARM_EXT_V6K | ARM_EXT_V6Z)
  78 #define ARM_AEXT_V6T2   (ARM_AEXT_V6    | ARM_EXT_V6T2)
  79 #define ARM_AEXT_V6KT2  (ARM_AEXT_V6    | ARM_EXT_V6T2 | ARM_EXT_V6K)
  80 #define ARM_AEXT_V6ZT2  (ARM_AEXT_V6    | ARM_EXT_V6T2 | ARM_EXT_V6Z)
  81 #define ARM_AEXT_V6ZKT2 (ARM_AEXT_V6    | ARM_EXT_V6T2 | ARM_EXT_V6K | ARM_EXT_V6Z)
  82
  83 /* Processors with specific extensions in the co-processor space.  */
  84 #define ARM_ARCH_XSCALE ARM_FEATURE (ARM_AEXT_V5TE, ARM_CEXT_XSCALE)
  85 #define ARM_ARCH_IWMMXT \
  86  ARM_FEATURE (ARM_AEXT_V5TE, ARM_CEXT_XSCALE | ARM_CEXT_IWMMXT)
  87
  88 #define FPU_VFP_V1xD    (FPU_VFP_EXT_V1xD | FPU_ENDIAN_PURE)
  89 #define FPU_VFP_V1      (FPU_VFP_V1xD | FPU_VFP_EXT_V1)
  90 #define FPU_VFP_V2      (FPU_VFP_V1 | FPU_VFP_EXT_V2)
  91 #define FPU_VFP_HARD    (FPU_VFP_EXT_V1xD | FPU_VFP_EXT_V1 | FPU_VFP_EXT_V2)
  92 #define FPU_FPA         (FPU_FPA_EXT_V1 | FPU_FPA_EXT_V2)
  93
  94 /* Deprecated */
  95 #define FPU_ARCH_VFP    ARM_FEATURE (0, FPU_ENDIAN_PURE)
  96
  97 #define FPU_ARCH_FPE    ARM_FEATURE (0, FPU_FPA_EXT_V1)
  98 #define FPU_ARCH_FPA    ARM_FEATURE (0, FPU_FPA)
  99
 100 #define FPU_ARCH_VFP_V1xD ARM_FEATURE (0, FPU_VFP_V1xD)
 101 #define FPU_ARCH_VFP_V1   ARM_FEATURE (0, FPU_VFP_V1)
 102 #define FPU_ARCH_VFP_V2   ARM_FEATURE (0, FPU_VFP_V2)
 103 #define FPU_ARCH_VFP_HARD ARM_FEATURE (0, FPU_VFP_HARD)
 104
 105 #define FPU_ARCH_ENDIAN_PURE ARM_FEATURE (0, FPU_ENDIAN_PURE)
 106
 107 #define FPU_ARCH_MAVERICK ARM_FEATURE (0, FPU_MAVERICK)
 108
 109 #define ARM_ARCH_V1     ARM_FEATURE (ARM_AEXT_V1, 0)
 110 #define ARM_ARCH_V2     ARM_FEATURE (ARM_AEXT_V2, 0)
 111 #define ARM_ARCH_V2S    ARM_FEATURE (ARM_AEXT_V2S, 0)
 112 #define ARM_ARCH_V3     ARM_FEATURE (ARM_AEXT_V3, 0)
 113 #define ARM_ARCH_V3M    ARM_FEATURE (ARM_AEXT_V3M, 0)
 114 #define ARM_ARCH_V4xM   ARM_FEATURE (ARM_AEXT_V4xM, 0)
 115 #define ARM_ARCH_V4     ARM_FEATURE (ARM_AEXT_V4, 0)
 116 #define ARM_ARCH_V4TxM  ARM_FEATURE (ARM_AEXT_V4TxM, 0)
 117 #define ARM_ARCH_V4T    ARM_FEATURE (ARM_AEXT_V4T, 0)
 118 #define ARM_ARCH_V5xM   ARM_FEATURE (ARM_AEXT_V5xM, 0)
 119 #define ARM_ARCH_V5     ARM_FEATURE (ARM_AEXT_V5, 0)
 120 #define ARM_ARCH_V5TxM  ARM_FEATURE (ARM_AEXT_V5TxM, 0)
 121 #define ARM_ARCH_V5T    ARM_FEATURE (ARM_AEXT_V5T, 0)
 122 #define ARM_ARCH_V5TExP ARM_FEATURE (ARM_AEXT_V5TExP, 0)
 123 #define ARM_ARCH_V5TE   ARM_FEATURE (ARM_AEXT_V5TE, 0)
 124 #define ARM_ARCH_V5TEJ  ARM_FEATURE (ARM_AEXT_V5TEJ, 0)
 125 #define ARM_ARCH_V6     ARM_FEATURE (ARM_AEXT_V6, 0)
 126 #define ARM_ARCH_V6K    ARM_FEATURE (ARM_AEXT_V6K, 0)
 127 #define ARM_ARCH_V6Z    ARM_FEATURE (ARM_AEXT_V6Z, 0)
 128 #define ARM_ARCH_V6ZK   ARM_FEATURE (ARM_AEXT_V6ZK, 0)
 129 #define ARM_ARCH_V6T2   ARM_FEATURE (ARM_AEXT_V6T2, 0)
 130 #define ARM_ARCH_V6KT2  ARM_FEATURE (ARM_AEXT_V6KT2, 0)
 131 #define ARM_ARCH_V6ZT2  ARM_FEATURE (ARM_AEXT_V6ZT2, 0)
 132 #define ARM_ARCH_V6ZKT2 ARM_FEATURE (ARM_AEXT_V6ZKT2, 0)
 133
 134 /* Some useful combinations:  */
 135 #define ARM_ARCH_NONE   ARM_FEATURE (0, 0)
 136 #define FPU_NONE        ARM_FEATURE (0, 0)
 137 #define ARM_ANY         ARM_FEATURE (-1, 0)     /* Any basic core.  */
 138 #define FPU_ANY_HARD    ARM_FEATURE (0, FPU_FPA | FPU_VFP_HARD | FPU_MAVERICK)
 139 #define ARM_ARCH_THUMB2 ARM_FEATURE (ARM_EXT_V6T2, 0)
 140
 141 /* There are too many feature bits to fit in a single word, so use a
 142    structure.  For simplicity we put all core features in one word and
 143    everything else in the other.  */
 144 typedef struct
 145 {
 146   unsigned long core;
 147   unsigned long coproc;
 148 } arm_feature_set;
 149
 150 #define ARM_CPU_HAS_FEATURE(CPU,FEAT) \
 151   (((CPU).core & (FEAT).core) != 0 || ((CPU).coproc & (FEAT).coproc) != 0)
 152
 153 #define ARM_MERGE_FEATURE_SETS(TARG,F1,F2)      \
 154   do {                                          \
 155     (TARG).core = (F1).core | (F2).core;        \
 156     (TARG).coproc = (F1).coproc | (F2).coproc;  \
 157   } while (0)
 158
 159 #define ARM_CLEAR_FEATURE(TARG,F1,F2)           \
 160   do {                                          \
 161     (TARG).core = (F1).core &~ (F2).core;       \
 162     (TARG).coproc = (F1).coproc &~ (F2).coproc; \
 163   } while (0)
 164
 165 #define ARM_FEATURE(core, coproc) {(core), (coproc)}