cachepc-qemu

Fork of AMDESE/qemu with changes for cachepc side-channel attack
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constants-a64.h (90433B)


      1// Copyright 2015, ARM Limited
      2// All rights reserved.
      3//
      4// Redistribution and use in source and binary forms, with or without
      5// modification, are permitted provided that the following conditions are met:
      6//
      7//   * Redistributions of source code must retain the above copyright notice,
      8//     this list of conditions and the following disclaimer.
      9//   * Redistributions in binary form must reproduce the above copyright notice,
     10//     this list of conditions and the following disclaimer in the documentation
     11//     and/or other materials provided with the distribution.
     12//   * Neither the name of ARM Limited nor the names of its contributors may be
     13//     used to endorse or promote products derived from this software without
     14//     specific prior written permission.
     15//
     16// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS CONTRIBUTORS "AS IS" AND
     17// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     18// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     19// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
     20// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     21// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
     22// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
     23// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
     24// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     25// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     26
     27#ifndef VIXL_A64_CONSTANTS_A64_H_
     28#define VIXL_A64_CONSTANTS_A64_H_
     29
     30namespace vixl {
     31
     32const unsigned kNumberOfRegisters = 32;
     33const unsigned kNumberOfVRegisters = 32;
     34const unsigned kNumberOfFPRegisters = kNumberOfVRegisters;
     35// Callee saved registers are x21-x30(lr).
     36const int kNumberOfCalleeSavedRegisters = 10;
     37const int kFirstCalleeSavedRegisterIndex = 21;
     38// Callee saved FP registers are d8-d15.
     39const int kNumberOfCalleeSavedFPRegisters = 8;
     40const int kFirstCalleeSavedFPRegisterIndex = 8;
     41
     42#define REGISTER_CODE_LIST(R)                                                  \
     43R(0)  R(1)  R(2)  R(3)  R(4)  R(5)  R(6)  R(7)                                 \
     44R(8)  R(9)  R(10) R(11) R(12) R(13) R(14) R(15)                                \
     45R(16) R(17) R(18) R(19) R(20) R(21) R(22) R(23)                                \
     46R(24) R(25) R(26) R(27) R(28) R(29) R(30) R(31)
     47
     48#define INSTRUCTION_FIELDS_LIST(V_)                                            \
     49/* Register fields */                                                          \
     50V_(Rd, 4, 0, Bits)                        /* Destination register.        */   \
     51V_(Rn, 9, 5, Bits)                        /* First source register.       */   \
     52V_(Rm, 20, 16, Bits)                      /* Second source register.      */   \
     53V_(Ra, 14, 10, Bits)                      /* Third source register.       */   \
     54V_(Rt, 4, 0, Bits)                        /* Load/store register.         */   \
     55V_(Rt2, 14, 10, Bits)                     /* Load/store second register.  */   \
     56V_(Rs, 20, 16, Bits)                      /* Exclusive access status.     */   \
     57                                                                               \
     58/* Common bits */                                                              \
     59V_(SixtyFourBits, 31, 31, Bits)                                                \
     60V_(FlagsUpdate, 29, 29, Bits)                                                  \
     61                                                                               \
     62/* PC relative addressing */                                                   \
     63V_(ImmPCRelHi, 23, 5, SignedBits)                                              \
     64V_(ImmPCRelLo, 30, 29, Bits)                                                   \
     65                                                                               \
     66/* Add/subtract/logical shift register */                                      \
     67V_(ShiftDP, 23, 22, Bits)                                                      \
     68V_(ImmDPShift, 15, 10, Bits)                                                   \
     69                                                                               \
     70/* Add/subtract immediate */                                                   \
     71V_(ImmAddSub, 21, 10, Bits)                                                    \
     72V_(ShiftAddSub, 23, 22, Bits)                                                  \
     73                                                                               \
     74/* Add/substract extend */                                                     \
     75V_(ImmExtendShift, 12, 10, Bits)                                               \
     76V_(ExtendMode, 15, 13, Bits)                                                   \
     77                                                                               \
     78/* Move wide */                                                                \
     79V_(ImmMoveWide, 20, 5, Bits)                                                   \
     80V_(ShiftMoveWide, 22, 21, Bits)                                                \
     81                                                                               \
     82/* Logical immediate, bitfield and extract */                                  \
     83V_(BitN, 22, 22, Bits)                                                         \
     84V_(ImmRotate, 21, 16, Bits)                                                    \
     85V_(ImmSetBits, 15, 10, Bits)                                                   \
     86V_(ImmR, 21, 16, Bits)                                                         \
     87V_(ImmS, 15, 10, Bits)                                                         \
     88                                                                               \
     89/* Test and branch immediate */                                                \
     90V_(ImmTestBranch, 18, 5, SignedBits)                                           \
     91V_(ImmTestBranchBit40, 23, 19, Bits)                                           \
     92V_(ImmTestBranchBit5, 31, 31, Bits)                                            \
     93                                                                               \
     94/* Conditionals */                                                             \
     95V_(Condition, 15, 12, Bits)                                                    \
     96V_(ConditionBranch, 3, 0, Bits)                                                \
     97V_(Nzcv, 3, 0, Bits)                                                           \
     98V_(ImmCondCmp, 20, 16, Bits)                                                   \
     99V_(ImmCondBranch, 23, 5, SignedBits)                                           \
    100                                                                               \
    101/* Floating point */                                                           \
    102V_(FPType, 23, 22, Bits)                                                       \
    103V_(ImmFP, 20, 13, Bits)                                                        \
    104V_(FPScale, 15, 10, Bits)                                                      \
    105                                                                               \
    106/* Load Store */                                                               \
    107V_(ImmLS, 20, 12, SignedBits)                                                  \
    108V_(ImmLSUnsigned, 21, 10, Bits)                                                \
    109V_(ImmLSPair, 21, 15, SignedBits)                                              \
    110V_(ImmShiftLS, 12, 12, Bits)                                                   \
    111V_(LSOpc, 23, 22, Bits)                                                        \
    112V_(LSVector, 26, 26, Bits)                                                     \
    113V_(LSSize, 31, 30, Bits)                                                       \
    114V_(ImmPrefetchOperation, 4, 0, Bits)                                           \
    115V_(PrefetchHint, 4, 3, Bits)                                                   \
    116V_(PrefetchTarget, 2, 1, Bits)                                                 \
    117V_(PrefetchStream, 0, 0, Bits)                                                 \
    118                                                                               \
    119/* Other immediates */                                                         \
    120V_(ImmUncondBranch, 25, 0, SignedBits)                                         \
    121V_(ImmCmpBranch, 23, 5, SignedBits)                                            \
    122V_(ImmLLiteral, 23, 5, SignedBits)                                             \
    123V_(ImmException, 20, 5, Bits)                                                  \
    124V_(ImmHint, 11, 5, Bits)                                                       \
    125V_(ImmBarrierDomain, 11, 10, Bits)                                             \
    126V_(ImmBarrierType, 9, 8, Bits)                                                 \
    127                                                                               \
    128/* System (MRS, MSR, SYS) */                                                   \
    129V_(ImmSystemRegister, 19, 5, Bits)                                             \
    130V_(SysO0, 19, 19, Bits)                                                        \
    131V_(SysOp, 18, 5, Bits)                                                         \
    132V_(SysOp1, 18, 16, Bits)                                                       \
    133V_(SysOp2, 7, 5, Bits)                                                         \
    134V_(CRn, 15, 12, Bits)                                                          \
    135V_(CRm, 11, 8, Bits)                                                           \
    136                                                                               \
    137/* Load-/store-exclusive */                                                    \
    138V_(LdStXLoad, 22, 22, Bits)                                                    \
    139V_(LdStXNotExclusive, 23, 23, Bits)                                            \
    140V_(LdStXAcquireRelease, 15, 15, Bits)                                          \
    141V_(LdStXSizeLog2, 31, 30, Bits)                                                \
    142V_(LdStXPair, 21, 21, Bits)                                                    \
    143                                                                               \
    144/* NEON generic fields */                                                      \
    145V_(NEONQ, 30, 30, Bits)                                                        \
    146V_(NEONSize, 23, 22, Bits)                                                     \
    147V_(NEONLSSize, 11, 10, Bits)                                                   \
    148V_(NEONS, 12, 12, Bits)                                                        \
    149V_(NEONL, 21, 21, Bits)                                                        \
    150V_(NEONM, 20, 20, Bits)                                                        \
    151V_(NEONH, 11, 11, Bits)                                                        \
    152V_(ImmNEONExt, 14, 11, Bits)                                                   \
    153V_(ImmNEON5, 20, 16, Bits)                                                     \
    154V_(ImmNEON4, 14, 11, Bits)                                                     \
    155                                                                               \
    156/* NEON Modified Immediate fields */                                           \
    157V_(ImmNEONabc, 18, 16, Bits)                                                   \
    158V_(ImmNEONdefgh, 9, 5, Bits)                                                   \
    159V_(NEONModImmOp, 29, 29, Bits)                                                 \
    160V_(NEONCmode, 15, 12, Bits)                                                    \
    161                                                                               \
    162/* NEON Shift Immediate fields */                                              \
    163V_(ImmNEONImmhImmb, 22, 16, Bits)                                              \
    164V_(ImmNEONImmh, 22, 19, Bits)                                                  \
    165V_(ImmNEONImmb, 18, 16, Bits)
    166
    167#define SYSTEM_REGISTER_FIELDS_LIST(V_, M_)                                    \
    168/* NZCV */                                                                     \
    169V_(Flags, 31, 28, Bits)                                                        \
    170V_(N, 31, 31, Bits)                                                            \
    171V_(Z, 30, 30, Bits)                                                            \
    172V_(C, 29, 29, Bits)                                                            \
    173V_(V, 28, 28, Bits)                                                            \
    174M_(NZCV, Flags_mask)                                                           \
    175/* FPCR */                                                                     \
    176V_(AHP, 26, 26, Bits)                                                          \
    177V_(DN, 25, 25, Bits)                                                           \
    178V_(FZ, 24, 24, Bits)                                                           \
    179V_(RMode, 23, 22, Bits)                                                        \
    180M_(FPCR, AHP_mask | DN_mask | FZ_mask | RMode_mask)
    181
    182// Fields offsets.
    183#define DECLARE_FIELDS_OFFSETS(Name, HighBit, LowBit, X)                       \
    184const int Name##_offset = LowBit;                                              \
    185const int Name##_width = HighBit - LowBit + 1;                                 \
    186const uint32_t Name##_mask = ((1 << Name##_width) - 1) << LowBit;
    187#define NOTHING(A, B)
    188INSTRUCTION_FIELDS_LIST(DECLARE_FIELDS_OFFSETS)
    189SYSTEM_REGISTER_FIELDS_LIST(DECLARE_FIELDS_OFFSETS, NOTHING)
    190#undef NOTHING
    191#undef DECLARE_FIELDS_BITS
    192
    193// ImmPCRel is a compound field (not present in INSTRUCTION_FIELDS_LIST), formed
    194// from ImmPCRelLo and ImmPCRelHi.
    195const int ImmPCRel_mask = ImmPCRelLo_mask | ImmPCRelHi_mask;
    196
    197// Condition codes.
    198enum Condition {
    199  eq = 0,   // Z set            Equal.
    200  ne = 1,   // Z clear          Not equal.
    201  cs = 2,   // C set            Carry set.
    202  cc = 3,   // C clear          Carry clear.
    203  mi = 4,   // N set            Negative.
    204  pl = 5,   // N clear          Positive or zero.
    205  vs = 6,   // V set            Overflow.
    206  vc = 7,   // V clear          No overflow.
    207  hi = 8,   // C set, Z clear   Unsigned higher.
    208  ls = 9,   // C clear or Z set Unsigned lower or same.
    209  ge = 10,  // N == V           Greater or equal.
    210  lt = 11,  // N != V           Less than.
    211  gt = 12,  // Z clear, N == V  Greater than.
    212  le = 13,  // Z set or N != V  Less then or equal
    213  al = 14,  //                  Always.
    214  nv = 15,  // Behaves as always/al.
    215
    216  // Aliases.
    217  hs = cs,  // C set            Unsigned higher or same.
    218  lo = cc   // C clear          Unsigned lower.
    219};
    220
    221inline Condition InvertCondition(Condition cond) {
    222  // Conditions al and nv behave identically, as "always true". They can't be
    223  // inverted, because there is no "always false" condition.
    224  VIXL_ASSERT((cond != al) && (cond != nv));
    225  return static_cast<Condition>(cond ^ 1);
    226}
    227
    228enum FPTrapFlags {
    229  EnableTrap   = 1,
    230  DisableTrap = 0
    231};
    232
    233enum FlagsUpdate {
    234  SetFlags   = 1,
    235  LeaveFlags = 0
    236};
    237
    238enum StatusFlags {
    239  NoFlag    = 0,
    240
    241  // Derive the flag combinations from the system register bit descriptions.
    242  NFlag     = N_mask,
    243  ZFlag     = Z_mask,
    244  CFlag     = C_mask,
    245  VFlag     = V_mask,
    246  NZFlag    = NFlag | ZFlag,
    247  NCFlag    = NFlag | CFlag,
    248  NVFlag    = NFlag | VFlag,
    249  ZCFlag    = ZFlag | CFlag,
    250  ZVFlag    = ZFlag | VFlag,
    251  CVFlag    = CFlag | VFlag,
    252  NZCFlag   = NFlag | ZFlag | CFlag,
    253  NZVFlag   = NFlag | ZFlag | VFlag,
    254  NCVFlag   = NFlag | CFlag | VFlag,
    255  ZCVFlag   = ZFlag | CFlag | VFlag,
    256  NZCVFlag  = NFlag | ZFlag | CFlag | VFlag,
    257
    258  // Floating-point comparison results.
    259  FPEqualFlag       = ZCFlag,
    260  FPLessThanFlag    = NFlag,
    261  FPGreaterThanFlag = CFlag,
    262  FPUnorderedFlag   = CVFlag
    263};
    264
    265enum Shift {
    266  NO_SHIFT = -1,
    267  LSL = 0x0,
    268  LSR = 0x1,
    269  ASR = 0x2,
    270  ROR = 0x3,
    271  MSL = 0x4
    272};
    273
    274enum Extend {
    275  NO_EXTEND = -1,
    276  UXTB      = 0,
    277  UXTH      = 1,
    278  UXTW      = 2,
    279  UXTX      = 3,
    280  SXTB      = 4,
    281  SXTH      = 5,
    282  SXTW      = 6,
    283  SXTX      = 7
    284};
    285
    286enum SystemHint {
    287  NOP   = 0,
    288  YIELD = 1,
    289  WFE   = 2,
    290  WFI   = 3,
    291  SEV   = 4,
    292  SEVL  = 5
    293};
    294
    295enum BarrierDomain {
    296  OuterShareable = 0,
    297  NonShareable   = 1,
    298  InnerShareable = 2,
    299  FullSystem     = 3
    300};
    301
    302enum BarrierType {
    303  BarrierOther  = 0,
    304  BarrierReads  = 1,
    305  BarrierWrites = 2,
    306  BarrierAll    = 3
    307};
    308
    309enum PrefetchOperation {
    310  PLDL1KEEP = 0x00,
    311  PLDL1STRM = 0x01,
    312  PLDL2KEEP = 0x02,
    313  PLDL2STRM = 0x03,
    314  PLDL3KEEP = 0x04,
    315  PLDL3STRM = 0x05,
    316
    317  PLIL1KEEP = 0x08,
    318  PLIL1STRM = 0x09,
    319  PLIL2KEEP = 0x0a,
    320  PLIL2STRM = 0x0b,
    321  PLIL3KEEP = 0x0c,
    322  PLIL3STRM = 0x0d,
    323
    324  PSTL1KEEP = 0x10,
    325  PSTL1STRM = 0x11,
    326  PSTL2KEEP = 0x12,
    327  PSTL2STRM = 0x13,
    328  PSTL3KEEP = 0x14,
    329  PSTL3STRM = 0x15
    330};
    331
    332// System/special register names.
    333// This information is not encoded as one field but as the concatenation of
    334// multiple fields (Op0<0>, Op1, Crn, Crm, Op2).
    335enum SystemRegister {
    336  NZCV = ((0x1 << SysO0_offset) |
    337          (0x3 << SysOp1_offset) |
    338          (0x4 << CRn_offset) |
    339          (0x2 << CRm_offset) |
    340          (0x0 << SysOp2_offset)) >> ImmSystemRegister_offset,
    341  FPCR = ((0x1 << SysO0_offset) |
    342          (0x3 << SysOp1_offset) |
    343          (0x4 << CRn_offset) |
    344          (0x4 << CRm_offset) |
    345          (0x0 << SysOp2_offset)) >> ImmSystemRegister_offset
    346};
    347
    348enum InstructionCacheOp {
    349  IVAU = ((0x3 << SysOp1_offset) |
    350          (0x7 << CRn_offset) |
    351          (0x5 << CRm_offset) |
    352          (0x1 << SysOp2_offset)) >> SysOp_offset
    353};
    354
    355enum DataCacheOp {
    356  CVAC  = ((0x3 << SysOp1_offset) |
    357           (0x7 << CRn_offset) |
    358           (0xa << CRm_offset) |
    359           (0x1 << SysOp2_offset)) >> SysOp_offset,
    360  CVAU  = ((0x3 << SysOp1_offset) |
    361           (0x7 << CRn_offset) |
    362           (0xb << CRm_offset) |
    363           (0x1 << SysOp2_offset)) >> SysOp_offset,
    364  CIVAC = ((0x3 << SysOp1_offset) |
    365           (0x7 << CRn_offset) |
    366           (0xe << CRm_offset) |
    367           (0x1 << SysOp2_offset)) >> SysOp_offset,
    368  ZVA   = ((0x3 << SysOp1_offset) |
    369           (0x7 << CRn_offset) |
    370           (0x4 << CRm_offset) |
    371           (0x1 << SysOp2_offset)) >> SysOp_offset
    372};
    373
    374// Instruction enumerations.
    375//
    376// These are the masks that define a class of instructions, and the list of
    377// instructions within each class. Each enumeration has a Fixed, FMask and
    378// Mask value.
    379//
    380// Fixed: The fixed bits in this instruction class.
    381// FMask: The mask used to extract the fixed bits in the class.
    382// Mask:  The mask used to identify the instructions within a class.
    383//
    384// The enumerations can be used like this:
    385//
    386// VIXL_ASSERT(instr->Mask(PCRelAddressingFMask) == PCRelAddressingFixed);
    387// switch(instr->Mask(PCRelAddressingMask)) {
    388//   case ADR:  Format("adr 'Xd, 'AddrPCRelByte"); break;
    389//   case ADRP: Format("adrp 'Xd, 'AddrPCRelPage"); break;
    390//   default:   printf("Unknown instruction\n");
    391// }
    392
    393
    394// Generic fields.
    395enum GenericInstrField {
    396  SixtyFourBits        = 0x80000000,
    397  ThirtyTwoBits        = 0x00000000,
    398  FP32                 = 0x00000000,
    399  FP64                 = 0x00400000
    400};
    401
    402enum NEONFormatField {
    403  NEONFormatFieldMask   = 0x40C00000,
    404  NEON_Q                = 0x40000000,
    405  NEON_8B               = 0x00000000,
    406  NEON_16B              = NEON_8B | NEON_Q,
    407  NEON_4H               = 0x00400000,
    408  NEON_8H               = NEON_4H | NEON_Q,
    409  NEON_2S               = 0x00800000,
    410  NEON_4S               = NEON_2S | NEON_Q,
    411  NEON_1D               = 0x00C00000,
    412  NEON_2D               = 0x00C00000 | NEON_Q
    413};
    414
    415enum NEONFPFormatField {
    416  NEONFPFormatFieldMask = 0x40400000,
    417  NEON_FP_2S            = FP32,
    418  NEON_FP_4S            = FP32 | NEON_Q,
    419  NEON_FP_2D            = FP64 | NEON_Q
    420};
    421
    422enum NEONLSFormatField {
    423  NEONLSFormatFieldMask = 0x40000C00,
    424  LS_NEON_8B            = 0x00000000,
    425  LS_NEON_16B           = LS_NEON_8B | NEON_Q,
    426  LS_NEON_4H            = 0x00000400,
    427  LS_NEON_8H            = LS_NEON_4H | NEON_Q,
    428  LS_NEON_2S            = 0x00000800,
    429  LS_NEON_4S            = LS_NEON_2S | NEON_Q,
    430  LS_NEON_1D            = 0x00000C00,
    431  LS_NEON_2D            = LS_NEON_1D | NEON_Q
    432};
    433
    434enum NEONScalarFormatField {
    435  NEONScalarFormatFieldMask = 0x00C00000,
    436  NEONScalar                = 0x10000000,
    437  NEON_B                    = 0x00000000,
    438  NEON_H                    = 0x00400000,
    439  NEON_S                    = 0x00800000,
    440  NEON_D                    = 0x00C00000
    441};
    442
    443// PC relative addressing.
    444enum PCRelAddressingOp {
    445  PCRelAddressingFixed = 0x10000000,
    446  PCRelAddressingFMask = 0x1F000000,
    447  PCRelAddressingMask  = 0x9F000000,
    448  ADR                  = PCRelAddressingFixed | 0x00000000,
    449  ADRP                 = PCRelAddressingFixed | 0x80000000
    450};
    451
    452// Add/sub (immediate, shifted and extended.)
    453const int kSFOffset = 31;
    454enum AddSubOp {
    455  AddSubOpMask      = 0x60000000,
    456  AddSubSetFlagsBit = 0x20000000,
    457  ADD               = 0x00000000,
    458  ADDS              = ADD | AddSubSetFlagsBit,
    459  SUB               = 0x40000000,
    460  SUBS              = SUB | AddSubSetFlagsBit
    461};
    462
    463#define ADD_SUB_OP_LIST(V)  \
    464  V(ADD),                   \
    465  V(ADDS),                  \
    466  V(SUB),                   \
    467  V(SUBS)
    468
    469enum AddSubImmediateOp {
    470  AddSubImmediateFixed = 0x11000000,
    471  AddSubImmediateFMask = 0x1F000000,
    472  AddSubImmediateMask  = 0xFF000000,
    473  #define ADD_SUB_IMMEDIATE(A)           \
    474  A##_w_imm = AddSubImmediateFixed | A,  \
    475  A##_x_imm = AddSubImmediateFixed | A | SixtyFourBits
    476  ADD_SUB_OP_LIST(ADD_SUB_IMMEDIATE)
    477  #undef ADD_SUB_IMMEDIATE
    478};
    479
    480enum AddSubShiftedOp {
    481  AddSubShiftedFixed   = 0x0B000000,
    482  AddSubShiftedFMask   = 0x1F200000,
    483  AddSubShiftedMask    = 0xFF200000,
    484  #define ADD_SUB_SHIFTED(A)             \
    485  A##_w_shift = AddSubShiftedFixed | A,  \
    486  A##_x_shift = AddSubShiftedFixed | A | SixtyFourBits
    487  ADD_SUB_OP_LIST(ADD_SUB_SHIFTED)
    488  #undef ADD_SUB_SHIFTED
    489};
    490
    491enum AddSubExtendedOp {
    492  AddSubExtendedFixed  = 0x0B200000,
    493  AddSubExtendedFMask  = 0x1F200000,
    494  AddSubExtendedMask   = 0xFFE00000,
    495  #define ADD_SUB_EXTENDED(A)           \
    496  A##_w_ext = AddSubExtendedFixed | A,  \
    497  A##_x_ext = AddSubExtendedFixed | A | SixtyFourBits
    498  ADD_SUB_OP_LIST(ADD_SUB_EXTENDED)
    499  #undef ADD_SUB_EXTENDED
    500};
    501
    502// Add/sub with carry.
    503enum AddSubWithCarryOp {
    504  AddSubWithCarryFixed = 0x1A000000,
    505  AddSubWithCarryFMask = 0x1FE00000,
    506  AddSubWithCarryMask  = 0xFFE0FC00,
    507  ADC_w                = AddSubWithCarryFixed | ADD,
    508  ADC_x                = AddSubWithCarryFixed | ADD | SixtyFourBits,
    509  ADC                  = ADC_w,
    510  ADCS_w               = AddSubWithCarryFixed | ADDS,
    511  ADCS_x               = AddSubWithCarryFixed | ADDS | SixtyFourBits,
    512  SBC_w                = AddSubWithCarryFixed | SUB,
    513  SBC_x                = AddSubWithCarryFixed | SUB | SixtyFourBits,
    514  SBC                  = SBC_w,
    515  SBCS_w               = AddSubWithCarryFixed | SUBS,
    516  SBCS_x               = AddSubWithCarryFixed | SUBS | SixtyFourBits
    517};
    518
    519
    520// Logical (immediate and shifted register).
    521enum LogicalOp {
    522  LogicalOpMask = 0x60200000,
    523  NOT   = 0x00200000,
    524  AND   = 0x00000000,
    525  BIC   = AND | NOT,
    526  ORR   = 0x20000000,
    527  ORN   = ORR | NOT,
    528  EOR   = 0x40000000,
    529  EON   = EOR | NOT,
    530  ANDS  = 0x60000000,
    531  BICS  = ANDS | NOT
    532};
    533
    534// Logical immediate.
    535enum LogicalImmediateOp {
    536  LogicalImmediateFixed = 0x12000000,
    537  LogicalImmediateFMask = 0x1F800000,
    538  LogicalImmediateMask  = 0xFF800000,
    539  AND_w_imm   = LogicalImmediateFixed | AND,
    540  AND_x_imm   = LogicalImmediateFixed | AND | SixtyFourBits,
    541  ORR_w_imm   = LogicalImmediateFixed | ORR,
    542  ORR_x_imm   = LogicalImmediateFixed | ORR | SixtyFourBits,
    543  EOR_w_imm   = LogicalImmediateFixed | EOR,
    544  EOR_x_imm   = LogicalImmediateFixed | EOR | SixtyFourBits,
    545  ANDS_w_imm  = LogicalImmediateFixed | ANDS,
    546  ANDS_x_imm  = LogicalImmediateFixed | ANDS | SixtyFourBits
    547};
    548
    549// Logical shifted register.
    550enum LogicalShiftedOp {
    551  LogicalShiftedFixed = 0x0A000000,
    552  LogicalShiftedFMask = 0x1F000000,
    553  LogicalShiftedMask  = 0xFF200000,
    554  AND_w               = LogicalShiftedFixed | AND,
    555  AND_x               = LogicalShiftedFixed | AND | SixtyFourBits,
    556  AND_shift           = AND_w,
    557  BIC_w               = LogicalShiftedFixed | BIC,
    558  BIC_x               = LogicalShiftedFixed | BIC | SixtyFourBits,
    559  BIC_shift           = BIC_w,
    560  ORR_w               = LogicalShiftedFixed | ORR,
    561  ORR_x               = LogicalShiftedFixed | ORR | SixtyFourBits,
    562  ORR_shift           = ORR_w,
    563  ORN_w               = LogicalShiftedFixed | ORN,
    564  ORN_x               = LogicalShiftedFixed | ORN | SixtyFourBits,
    565  ORN_shift           = ORN_w,
    566  EOR_w               = LogicalShiftedFixed | EOR,
    567  EOR_x               = LogicalShiftedFixed | EOR | SixtyFourBits,
    568  EOR_shift           = EOR_w,
    569  EON_w               = LogicalShiftedFixed | EON,
    570  EON_x               = LogicalShiftedFixed | EON | SixtyFourBits,
    571  EON_shift           = EON_w,
    572  ANDS_w              = LogicalShiftedFixed | ANDS,
    573  ANDS_x              = LogicalShiftedFixed | ANDS | SixtyFourBits,
    574  ANDS_shift          = ANDS_w,
    575  BICS_w              = LogicalShiftedFixed | BICS,
    576  BICS_x              = LogicalShiftedFixed | BICS | SixtyFourBits,
    577  BICS_shift          = BICS_w
    578};
    579
    580// Move wide immediate.
    581enum MoveWideImmediateOp {
    582  MoveWideImmediateFixed = 0x12800000,
    583  MoveWideImmediateFMask = 0x1F800000,
    584  MoveWideImmediateMask  = 0xFF800000,
    585  MOVN                   = 0x00000000,
    586  MOVZ                   = 0x40000000,
    587  MOVK                   = 0x60000000,
    588  MOVN_w                 = MoveWideImmediateFixed | MOVN,
    589  MOVN_x                 = MoveWideImmediateFixed | MOVN | SixtyFourBits,
    590  MOVZ_w                 = MoveWideImmediateFixed | MOVZ,
    591  MOVZ_x                 = MoveWideImmediateFixed | MOVZ | SixtyFourBits,
    592  MOVK_w                 = MoveWideImmediateFixed | MOVK,
    593  MOVK_x                 = MoveWideImmediateFixed | MOVK | SixtyFourBits
    594};
    595
    596// Bitfield.
    597const int kBitfieldNOffset = 22;
    598enum BitfieldOp {
    599  BitfieldFixed = 0x13000000,
    600  BitfieldFMask = 0x1F800000,
    601  BitfieldMask  = 0xFF800000,
    602  SBFM_w        = BitfieldFixed | 0x00000000,
    603  SBFM_x        = BitfieldFixed | 0x80000000,
    604  SBFM          = SBFM_w,
    605  BFM_w         = BitfieldFixed | 0x20000000,
    606  BFM_x         = BitfieldFixed | 0xA0000000,
    607  BFM           = BFM_w,
    608  UBFM_w        = BitfieldFixed | 0x40000000,
    609  UBFM_x        = BitfieldFixed | 0xC0000000,
    610  UBFM          = UBFM_w
    611  // Bitfield N field.
    612};
    613
    614// Extract.
    615enum ExtractOp {
    616  ExtractFixed = 0x13800000,
    617  ExtractFMask = 0x1F800000,
    618  ExtractMask  = 0xFFA00000,
    619  EXTR_w       = ExtractFixed | 0x00000000,
    620  EXTR_x       = ExtractFixed | 0x80000000,
    621  EXTR         = EXTR_w
    622};
    623
    624// Unconditional branch.
    625enum UnconditionalBranchOp {
    626  UnconditionalBranchFixed = 0x14000000,
    627  UnconditionalBranchFMask = 0x7C000000,
    628  UnconditionalBranchMask  = 0xFC000000,
    629  B                        = UnconditionalBranchFixed | 0x00000000,
    630  BL                       = UnconditionalBranchFixed | 0x80000000
    631};
    632
    633// Unconditional branch to register.
    634enum UnconditionalBranchToRegisterOp {
    635  UnconditionalBranchToRegisterFixed = 0xD6000000,
    636  UnconditionalBranchToRegisterFMask = 0xFE000000,
    637  UnconditionalBranchToRegisterMask  = 0xFFFFFC1F,
    638  BR      = UnconditionalBranchToRegisterFixed | 0x001F0000,
    639  BLR     = UnconditionalBranchToRegisterFixed | 0x003F0000,
    640  RET     = UnconditionalBranchToRegisterFixed | 0x005F0000
    641};
    642
    643// Compare and branch.
    644enum CompareBranchOp {
    645  CompareBranchFixed = 0x34000000,
    646  CompareBranchFMask = 0x7E000000,
    647  CompareBranchMask  = 0xFF000000,
    648  CBZ_w              = CompareBranchFixed | 0x00000000,
    649  CBZ_x              = CompareBranchFixed | 0x80000000,
    650  CBZ                = CBZ_w,
    651  CBNZ_w             = CompareBranchFixed | 0x01000000,
    652  CBNZ_x             = CompareBranchFixed | 0x81000000,
    653  CBNZ               = CBNZ_w
    654};
    655
    656// Test and branch.
    657enum TestBranchOp {
    658  TestBranchFixed = 0x36000000,
    659  TestBranchFMask = 0x7E000000,
    660  TestBranchMask  = 0x7F000000,
    661  TBZ             = TestBranchFixed | 0x00000000,
    662  TBNZ            = TestBranchFixed | 0x01000000
    663};
    664
    665// Conditional branch.
    666enum ConditionalBranchOp {
    667  ConditionalBranchFixed = 0x54000000,
    668  ConditionalBranchFMask = 0xFE000000,
    669  ConditionalBranchMask  = 0xFF000010,
    670  B_cond                 = ConditionalBranchFixed | 0x00000000
    671};
    672
    673// System.
    674// System instruction encoding is complicated because some instructions use op
    675// and CR fields to encode parameters. To handle this cleanly, the system
    676// instructions are split into more than one enum.
    677
    678enum SystemOp {
    679  SystemFixed = 0xD5000000,
    680  SystemFMask = 0xFFC00000
    681};
    682
    683enum SystemSysRegOp {
    684  SystemSysRegFixed = 0xD5100000,
    685  SystemSysRegFMask = 0xFFD00000,
    686  SystemSysRegMask  = 0xFFF00000,
    687  MRS               = SystemSysRegFixed | 0x00200000,
    688  MSR               = SystemSysRegFixed | 0x00000000
    689};
    690
    691enum SystemHintOp {
    692  SystemHintFixed = 0xD503201F,
    693  SystemHintFMask = 0xFFFFF01F,
    694  SystemHintMask  = 0xFFFFF01F,
    695  HINT            = SystemHintFixed | 0x00000000
    696};
    697
    698enum SystemSysOp {
    699  SystemSysFixed  = 0xD5080000,
    700  SystemSysFMask  = 0xFFF80000,
    701  SystemSysMask   = 0xFFF80000,
    702  SYS             = SystemSysFixed | 0x00000000
    703};
    704
    705// Exception.
    706enum ExceptionOp {
    707  ExceptionFixed = 0xD4000000,
    708  ExceptionFMask = 0xFF000000,
    709  ExceptionMask  = 0xFFE0001F,
    710  HLT            = ExceptionFixed | 0x00400000,
    711  BRK            = ExceptionFixed | 0x00200000,
    712  SVC            = ExceptionFixed | 0x00000001,
    713  HVC            = ExceptionFixed | 0x00000002,
    714  SMC            = ExceptionFixed | 0x00000003,
    715  DCPS1          = ExceptionFixed | 0x00A00001,
    716  DCPS2          = ExceptionFixed | 0x00A00002,
    717  DCPS3          = ExceptionFixed | 0x00A00003
    718};
    719
    720enum MemBarrierOp {
    721  MemBarrierFixed = 0xD503309F,
    722  MemBarrierFMask = 0xFFFFF09F,
    723  MemBarrierMask  = 0xFFFFF0FF,
    724  DSB             = MemBarrierFixed | 0x00000000,
    725  DMB             = MemBarrierFixed | 0x00000020,
    726  ISB             = MemBarrierFixed | 0x00000040
    727};
    728
    729enum SystemExclusiveMonitorOp {
    730  SystemExclusiveMonitorFixed = 0xD503305F,
    731  SystemExclusiveMonitorFMask = 0xFFFFF0FF,
    732  SystemExclusiveMonitorMask  = 0xFFFFF0FF,
    733  CLREX                       = SystemExclusiveMonitorFixed
    734};
    735
    736// Any load or store.
    737enum LoadStoreAnyOp {
    738  LoadStoreAnyFMask = 0x0a000000,
    739  LoadStoreAnyFixed = 0x08000000
    740};
    741
    742// Any load pair or store pair.
    743enum LoadStorePairAnyOp {
    744  LoadStorePairAnyFMask = 0x3a000000,
    745  LoadStorePairAnyFixed = 0x28000000
    746};
    747
    748#define LOAD_STORE_PAIR_OP_LIST(V)  \
    749  V(STP, w,   0x00000000),          \
    750  V(LDP, w,   0x00400000),          \
    751  V(LDPSW, x, 0x40400000),          \
    752  V(STP, x,   0x80000000),          \
    753  V(LDP, x,   0x80400000),          \
    754  V(STP, s,   0x04000000),          \
    755  V(LDP, s,   0x04400000),          \
    756  V(STP, d,   0x44000000),          \
    757  V(LDP, d,   0x44400000),          \
    758  V(STP, q,   0x84000000),          \
    759  V(LDP, q,   0x84400000)
    760
    761// Load/store pair (post, pre and offset.)
    762enum LoadStorePairOp {
    763  LoadStorePairMask = 0xC4400000,
    764  LoadStorePairLBit = 1 << 22,
    765  #define LOAD_STORE_PAIR(A, B, C) \
    766  A##_##B = C
    767  LOAD_STORE_PAIR_OP_LIST(LOAD_STORE_PAIR)
    768  #undef LOAD_STORE_PAIR
    769};
    770
    771enum LoadStorePairPostIndexOp {
    772  LoadStorePairPostIndexFixed = 0x28800000,
    773  LoadStorePairPostIndexFMask = 0x3B800000,
    774  LoadStorePairPostIndexMask  = 0xFFC00000,
    775  #define LOAD_STORE_PAIR_POST_INDEX(A, B, C)  \
    776  A##_##B##_post = LoadStorePairPostIndexFixed | A##_##B
    777  LOAD_STORE_PAIR_OP_LIST(LOAD_STORE_PAIR_POST_INDEX)
    778  #undef LOAD_STORE_PAIR_POST_INDEX
    779};
    780
    781enum LoadStorePairPreIndexOp {
    782  LoadStorePairPreIndexFixed = 0x29800000,
    783  LoadStorePairPreIndexFMask = 0x3B800000,
    784  LoadStorePairPreIndexMask  = 0xFFC00000,
    785  #define LOAD_STORE_PAIR_PRE_INDEX(A, B, C)  \
    786  A##_##B##_pre = LoadStorePairPreIndexFixed | A##_##B
    787  LOAD_STORE_PAIR_OP_LIST(LOAD_STORE_PAIR_PRE_INDEX)
    788  #undef LOAD_STORE_PAIR_PRE_INDEX
    789};
    790
    791enum LoadStorePairOffsetOp {
    792  LoadStorePairOffsetFixed = 0x29000000,
    793  LoadStorePairOffsetFMask = 0x3B800000,
    794  LoadStorePairOffsetMask  = 0xFFC00000,
    795  #define LOAD_STORE_PAIR_OFFSET(A, B, C)  \
    796  A##_##B##_off = LoadStorePairOffsetFixed | A##_##B
    797  LOAD_STORE_PAIR_OP_LIST(LOAD_STORE_PAIR_OFFSET)
    798  #undef LOAD_STORE_PAIR_OFFSET
    799};
    800
    801enum LoadStorePairNonTemporalOp {
    802  LoadStorePairNonTemporalFixed = 0x28000000,
    803  LoadStorePairNonTemporalFMask = 0x3B800000,
    804  LoadStorePairNonTemporalMask  = 0xFFC00000,
    805  LoadStorePairNonTemporalLBit = 1 << 22,
    806  STNP_w = LoadStorePairNonTemporalFixed | STP_w,
    807  LDNP_w = LoadStorePairNonTemporalFixed | LDP_w,
    808  STNP_x = LoadStorePairNonTemporalFixed | STP_x,
    809  LDNP_x = LoadStorePairNonTemporalFixed | LDP_x,
    810  STNP_s = LoadStorePairNonTemporalFixed | STP_s,
    811  LDNP_s = LoadStorePairNonTemporalFixed | LDP_s,
    812  STNP_d = LoadStorePairNonTemporalFixed | STP_d,
    813  LDNP_d = LoadStorePairNonTemporalFixed | LDP_d,
    814  STNP_q = LoadStorePairNonTemporalFixed | STP_q,
    815  LDNP_q = LoadStorePairNonTemporalFixed | LDP_q
    816};
    817
    818// Load literal.
    819enum LoadLiteralOp {
    820  LoadLiteralFixed = 0x18000000,
    821  LoadLiteralFMask = 0x3B000000,
    822  LoadLiteralMask  = 0xFF000000,
    823  LDR_w_lit        = LoadLiteralFixed | 0x00000000,
    824  LDR_x_lit        = LoadLiteralFixed | 0x40000000,
    825  LDRSW_x_lit      = LoadLiteralFixed | 0x80000000,
    826  PRFM_lit         = LoadLiteralFixed | 0xC0000000,
    827  LDR_s_lit        = LoadLiteralFixed | 0x04000000,
    828  LDR_d_lit        = LoadLiteralFixed | 0x44000000,
    829  LDR_q_lit        = LoadLiteralFixed | 0x84000000
    830};
    831
    832#define LOAD_STORE_OP_LIST(V)     \
    833  V(ST, RB, w,  0x00000000),  \
    834  V(ST, RH, w,  0x40000000),  \
    835  V(ST, R, w,   0x80000000),  \
    836  V(ST, R, x,   0xC0000000),  \
    837  V(LD, RB, w,  0x00400000),  \
    838  V(LD, RH, w,  0x40400000),  \
    839  V(LD, R, w,   0x80400000),  \
    840  V(LD, R, x,   0xC0400000),  \
    841  V(LD, RSB, x, 0x00800000),  \
    842  V(LD, RSH, x, 0x40800000),  \
    843  V(LD, RSW, x, 0x80800000),  \
    844  V(LD, RSB, w, 0x00C00000),  \
    845  V(LD, RSH, w, 0x40C00000),  \
    846  V(ST, R, b,   0x04000000),  \
    847  V(ST, R, h,   0x44000000),  \
    848  V(ST, R, s,   0x84000000),  \
    849  V(ST, R, d,   0xC4000000),  \
    850  V(ST, R, q,   0x04800000),  \
    851  V(LD, R, b,   0x04400000),  \
    852  V(LD, R, h,   0x44400000),  \
    853  V(LD, R, s,   0x84400000),  \
    854  V(LD, R, d,   0xC4400000),  \
    855  V(LD, R, q,   0x04C00000)
    856
    857// Load/store (post, pre, offset and unsigned.)
    858enum LoadStoreOp {
    859  LoadStoreMask = 0xC4C00000,
    860  LoadStoreVMask = 0x04000000,
    861  #define LOAD_STORE(A, B, C, D)  \
    862  A##B##_##C = D
    863  LOAD_STORE_OP_LIST(LOAD_STORE),
    864  #undef LOAD_STORE
    865  PRFM = 0xC0800000
    866};
    867
    868// Load/store unscaled offset.
    869enum LoadStoreUnscaledOffsetOp {
    870  LoadStoreUnscaledOffsetFixed = 0x38000000,
    871  LoadStoreUnscaledOffsetFMask = 0x3B200C00,
    872  LoadStoreUnscaledOffsetMask  = 0xFFE00C00,
    873  PRFUM                        = LoadStoreUnscaledOffsetFixed | PRFM,
    874  #define LOAD_STORE_UNSCALED(A, B, C, D)  \
    875  A##U##B##_##C = LoadStoreUnscaledOffsetFixed | D
    876  LOAD_STORE_OP_LIST(LOAD_STORE_UNSCALED)
    877  #undef LOAD_STORE_UNSCALED
    878};
    879
    880// Load/store post index.
    881enum LoadStorePostIndex {
    882  LoadStorePostIndexFixed = 0x38000400,
    883  LoadStorePostIndexFMask = 0x3B200C00,
    884  LoadStorePostIndexMask  = 0xFFE00C00,
    885  #define LOAD_STORE_POST_INDEX(A, B, C, D)  \
    886  A##B##_##C##_post = LoadStorePostIndexFixed | D
    887  LOAD_STORE_OP_LIST(LOAD_STORE_POST_INDEX)
    888  #undef LOAD_STORE_POST_INDEX
    889};
    890
    891// Load/store pre index.
    892enum LoadStorePreIndex {
    893  LoadStorePreIndexFixed = 0x38000C00,
    894  LoadStorePreIndexFMask = 0x3B200C00,
    895  LoadStorePreIndexMask  = 0xFFE00C00,
    896  #define LOAD_STORE_PRE_INDEX(A, B, C, D)  \
    897  A##B##_##C##_pre = LoadStorePreIndexFixed | D
    898  LOAD_STORE_OP_LIST(LOAD_STORE_PRE_INDEX)
    899  #undef LOAD_STORE_PRE_INDEX
    900};
    901
    902// Load/store unsigned offset.
    903enum LoadStoreUnsignedOffset {
    904  LoadStoreUnsignedOffsetFixed = 0x39000000,
    905  LoadStoreUnsignedOffsetFMask = 0x3B000000,
    906  LoadStoreUnsignedOffsetMask  = 0xFFC00000,
    907  PRFM_unsigned                = LoadStoreUnsignedOffsetFixed | PRFM,
    908  #define LOAD_STORE_UNSIGNED_OFFSET(A, B, C, D) \
    909  A##B##_##C##_unsigned = LoadStoreUnsignedOffsetFixed | D
    910  LOAD_STORE_OP_LIST(LOAD_STORE_UNSIGNED_OFFSET)
    911  #undef LOAD_STORE_UNSIGNED_OFFSET
    912};
    913
    914// Load/store register offset.
    915enum LoadStoreRegisterOffset {
    916  LoadStoreRegisterOffsetFixed = 0x38200800,
    917  LoadStoreRegisterOffsetFMask = 0x3B200C00,
    918  LoadStoreRegisterOffsetMask  = 0xFFE00C00,
    919  PRFM_reg                     = LoadStoreRegisterOffsetFixed | PRFM,
    920  #define LOAD_STORE_REGISTER_OFFSET(A, B, C, D) \
    921  A##B##_##C##_reg = LoadStoreRegisterOffsetFixed | D
    922  LOAD_STORE_OP_LIST(LOAD_STORE_REGISTER_OFFSET)
    923  #undef LOAD_STORE_REGISTER_OFFSET
    924};
    925
    926enum LoadStoreExclusive {
    927  LoadStoreExclusiveFixed = 0x08000000,
    928  LoadStoreExclusiveFMask = 0x3F000000,
    929  LoadStoreExclusiveMask  = 0xFFE08000,
    930  STXRB_w  = LoadStoreExclusiveFixed | 0x00000000,
    931  STXRH_w  = LoadStoreExclusiveFixed | 0x40000000,
    932  STXR_w   = LoadStoreExclusiveFixed | 0x80000000,
    933  STXR_x   = LoadStoreExclusiveFixed | 0xC0000000,
    934  LDXRB_w  = LoadStoreExclusiveFixed | 0x00400000,
    935  LDXRH_w  = LoadStoreExclusiveFixed | 0x40400000,
    936  LDXR_w   = LoadStoreExclusiveFixed | 0x80400000,
    937  LDXR_x   = LoadStoreExclusiveFixed | 0xC0400000,
    938  STXP_w   = LoadStoreExclusiveFixed | 0x80200000,
    939  STXP_x   = LoadStoreExclusiveFixed | 0xC0200000,
    940  LDXP_w   = LoadStoreExclusiveFixed | 0x80600000,
    941  LDXP_x   = LoadStoreExclusiveFixed | 0xC0600000,
    942  STLXRB_w = LoadStoreExclusiveFixed | 0x00008000,
    943  STLXRH_w = LoadStoreExclusiveFixed | 0x40008000,
    944  STLXR_w  = LoadStoreExclusiveFixed | 0x80008000,
    945  STLXR_x  = LoadStoreExclusiveFixed | 0xC0008000,
    946  LDAXRB_w = LoadStoreExclusiveFixed | 0x00408000,
    947  LDAXRH_w = LoadStoreExclusiveFixed | 0x40408000,
    948  LDAXR_w  = LoadStoreExclusiveFixed | 0x80408000,
    949  LDAXR_x  = LoadStoreExclusiveFixed | 0xC0408000,
    950  STLXP_w  = LoadStoreExclusiveFixed | 0x80208000,
    951  STLXP_x  = LoadStoreExclusiveFixed | 0xC0208000,
    952  LDAXP_w  = LoadStoreExclusiveFixed | 0x80608000,
    953  LDAXP_x  = LoadStoreExclusiveFixed | 0xC0608000,
    954  STLRB_w  = LoadStoreExclusiveFixed | 0x00808000,
    955  STLRH_w  = LoadStoreExclusiveFixed | 0x40808000,
    956  STLR_w   = LoadStoreExclusiveFixed | 0x80808000,
    957  STLR_x   = LoadStoreExclusiveFixed | 0xC0808000,
    958  LDARB_w  = LoadStoreExclusiveFixed | 0x00C08000,
    959  LDARH_w  = LoadStoreExclusiveFixed | 0x40C08000,
    960  LDAR_w   = LoadStoreExclusiveFixed | 0x80C08000,
    961  LDAR_x   = LoadStoreExclusiveFixed | 0xC0C08000
    962};
    963
    964// Conditional compare.
    965enum ConditionalCompareOp {
    966  ConditionalCompareMask = 0x60000000,
    967  CCMN                   = 0x20000000,
    968  CCMP                   = 0x60000000
    969};
    970
    971// Conditional compare register.
    972enum ConditionalCompareRegisterOp {
    973  ConditionalCompareRegisterFixed = 0x1A400000,
    974  ConditionalCompareRegisterFMask = 0x1FE00800,
    975  ConditionalCompareRegisterMask  = 0xFFE00C10,
    976  CCMN_w = ConditionalCompareRegisterFixed | CCMN,
    977  CCMN_x = ConditionalCompareRegisterFixed | SixtyFourBits | CCMN,
    978  CCMP_w = ConditionalCompareRegisterFixed | CCMP,
    979  CCMP_x = ConditionalCompareRegisterFixed | SixtyFourBits | CCMP
    980};
    981
    982// Conditional compare immediate.
    983enum ConditionalCompareImmediateOp {
    984  ConditionalCompareImmediateFixed = 0x1A400800,
    985  ConditionalCompareImmediateFMask = 0x1FE00800,
    986  ConditionalCompareImmediateMask  = 0xFFE00C10,
    987  CCMN_w_imm = ConditionalCompareImmediateFixed | CCMN,
    988  CCMN_x_imm = ConditionalCompareImmediateFixed | SixtyFourBits | CCMN,
    989  CCMP_w_imm = ConditionalCompareImmediateFixed | CCMP,
    990  CCMP_x_imm = ConditionalCompareImmediateFixed | SixtyFourBits | CCMP
    991};
    992
    993// Conditional select.
    994enum ConditionalSelectOp {
    995  ConditionalSelectFixed = 0x1A800000,
    996  ConditionalSelectFMask = 0x1FE00000,
    997  ConditionalSelectMask  = 0xFFE00C00,
    998  CSEL_w                 = ConditionalSelectFixed | 0x00000000,
    999  CSEL_x                 = ConditionalSelectFixed | 0x80000000,
   1000  CSEL                   = CSEL_w,
   1001  CSINC_w                = ConditionalSelectFixed | 0x00000400,
   1002  CSINC_x                = ConditionalSelectFixed | 0x80000400,
   1003  CSINC                  = CSINC_w,
   1004  CSINV_w                = ConditionalSelectFixed | 0x40000000,
   1005  CSINV_x                = ConditionalSelectFixed | 0xC0000000,
   1006  CSINV                  = CSINV_w,
   1007  CSNEG_w                = ConditionalSelectFixed | 0x40000400,
   1008  CSNEG_x                = ConditionalSelectFixed | 0xC0000400,
   1009  CSNEG                  = CSNEG_w
   1010};
   1011
   1012// Data processing 1 source.
   1013enum DataProcessing1SourceOp {
   1014  DataProcessing1SourceFixed = 0x5AC00000,
   1015  DataProcessing1SourceFMask = 0x5FE00000,
   1016  DataProcessing1SourceMask  = 0xFFFFFC00,
   1017  RBIT    = DataProcessing1SourceFixed | 0x00000000,
   1018  RBIT_w  = RBIT,
   1019  RBIT_x  = RBIT | SixtyFourBits,
   1020  REV16   = DataProcessing1SourceFixed | 0x00000400,
   1021  REV16_w = REV16,
   1022  REV16_x = REV16 | SixtyFourBits,
   1023  REV     = DataProcessing1SourceFixed | 0x00000800,
   1024  REV_w   = REV,
   1025  REV32_x = REV | SixtyFourBits,
   1026  REV_x   = DataProcessing1SourceFixed | SixtyFourBits | 0x00000C00,
   1027  CLZ     = DataProcessing1SourceFixed | 0x00001000,
   1028  CLZ_w   = CLZ,
   1029  CLZ_x   = CLZ | SixtyFourBits,
   1030  CLS     = DataProcessing1SourceFixed | 0x00001400,
   1031  CLS_w   = CLS,
   1032  CLS_x   = CLS | SixtyFourBits
   1033};
   1034
   1035// Data processing 2 source.
   1036enum DataProcessing2SourceOp {
   1037  DataProcessing2SourceFixed = 0x1AC00000,
   1038  DataProcessing2SourceFMask = 0x5FE00000,
   1039  DataProcessing2SourceMask  = 0xFFE0FC00,
   1040  UDIV_w  = DataProcessing2SourceFixed | 0x00000800,
   1041  UDIV_x  = DataProcessing2SourceFixed | 0x80000800,
   1042  UDIV    = UDIV_w,
   1043  SDIV_w  = DataProcessing2SourceFixed | 0x00000C00,
   1044  SDIV_x  = DataProcessing2SourceFixed | 0x80000C00,
   1045  SDIV    = SDIV_w,
   1046  LSLV_w  = DataProcessing2SourceFixed | 0x00002000,
   1047  LSLV_x  = DataProcessing2SourceFixed | 0x80002000,
   1048  LSLV    = LSLV_w,
   1049  LSRV_w  = DataProcessing2SourceFixed | 0x00002400,
   1050  LSRV_x  = DataProcessing2SourceFixed | 0x80002400,
   1051  LSRV    = LSRV_w,
   1052  ASRV_w  = DataProcessing2SourceFixed | 0x00002800,
   1053  ASRV_x  = DataProcessing2SourceFixed | 0x80002800,
   1054  ASRV    = ASRV_w,
   1055  RORV_w  = DataProcessing2SourceFixed | 0x00002C00,
   1056  RORV_x  = DataProcessing2SourceFixed | 0x80002C00,
   1057  RORV    = RORV_w,
   1058  CRC32B  = DataProcessing2SourceFixed | 0x00004000,
   1059  CRC32H  = DataProcessing2SourceFixed | 0x00004400,
   1060  CRC32W  = DataProcessing2SourceFixed | 0x00004800,
   1061  CRC32X  = DataProcessing2SourceFixed | SixtyFourBits | 0x00004C00,
   1062  CRC32CB = DataProcessing2SourceFixed | 0x00005000,
   1063  CRC32CH = DataProcessing2SourceFixed | 0x00005400,
   1064  CRC32CW = DataProcessing2SourceFixed | 0x00005800,
   1065  CRC32CX = DataProcessing2SourceFixed | SixtyFourBits | 0x00005C00
   1066};
   1067
   1068// Data processing 3 source.
   1069enum DataProcessing3SourceOp {
   1070  DataProcessing3SourceFixed = 0x1B000000,
   1071  DataProcessing3SourceFMask = 0x1F000000,
   1072  DataProcessing3SourceMask  = 0xFFE08000,
   1073  MADD_w                     = DataProcessing3SourceFixed | 0x00000000,
   1074  MADD_x                     = DataProcessing3SourceFixed | 0x80000000,
   1075  MADD                       = MADD_w,
   1076  MSUB_w                     = DataProcessing3SourceFixed | 0x00008000,
   1077  MSUB_x                     = DataProcessing3SourceFixed | 0x80008000,
   1078  MSUB                       = MSUB_w,
   1079  SMADDL_x                   = DataProcessing3SourceFixed | 0x80200000,
   1080  SMSUBL_x                   = DataProcessing3SourceFixed | 0x80208000,
   1081  SMULH_x                    = DataProcessing3SourceFixed | 0x80400000,
   1082  UMADDL_x                   = DataProcessing3SourceFixed | 0x80A00000,
   1083  UMSUBL_x                   = DataProcessing3SourceFixed | 0x80A08000,
   1084  UMULH_x                    = DataProcessing3SourceFixed | 0x80C00000
   1085};
   1086
   1087// Floating point compare.
   1088enum FPCompareOp {
   1089  FPCompareFixed = 0x1E202000,
   1090  FPCompareFMask = 0x5F203C00,
   1091  FPCompareMask  = 0xFFE0FC1F,
   1092  FCMP_s         = FPCompareFixed | 0x00000000,
   1093  FCMP_d         = FPCompareFixed | FP64 | 0x00000000,
   1094  FCMP           = FCMP_s,
   1095  FCMP_s_zero    = FPCompareFixed | 0x00000008,
   1096  FCMP_d_zero    = FPCompareFixed | FP64 | 0x00000008,
   1097  FCMP_zero      = FCMP_s_zero,
   1098  FCMPE_s        = FPCompareFixed | 0x00000010,
   1099  FCMPE_d        = FPCompareFixed | FP64 | 0x00000010,
   1100  FCMPE          = FCMPE_s,
   1101  FCMPE_s_zero   = FPCompareFixed | 0x00000018,
   1102  FCMPE_d_zero   = FPCompareFixed | FP64 | 0x00000018,
   1103  FCMPE_zero     = FCMPE_s_zero
   1104};
   1105
   1106// Floating point conditional compare.
   1107enum FPConditionalCompareOp {
   1108  FPConditionalCompareFixed = 0x1E200400,
   1109  FPConditionalCompareFMask = 0x5F200C00,
   1110  FPConditionalCompareMask  = 0xFFE00C10,
   1111  FCCMP_s                   = FPConditionalCompareFixed | 0x00000000,
   1112  FCCMP_d                   = FPConditionalCompareFixed | FP64 | 0x00000000,
   1113  FCCMP                     = FCCMP_s,
   1114  FCCMPE_s                  = FPConditionalCompareFixed | 0x00000010,
   1115  FCCMPE_d                  = FPConditionalCompareFixed | FP64 | 0x00000010,
   1116  FCCMPE                    = FCCMPE_s
   1117};
   1118
   1119// Floating point conditional select.
   1120enum FPConditionalSelectOp {
   1121  FPConditionalSelectFixed = 0x1E200C00,
   1122  FPConditionalSelectFMask = 0x5F200C00,
   1123  FPConditionalSelectMask  = 0xFFE00C00,
   1124  FCSEL_s                  = FPConditionalSelectFixed | 0x00000000,
   1125  FCSEL_d                  = FPConditionalSelectFixed | FP64 | 0x00000000,
   1126  FCSEL                    = FCSEL_s
   1127};
   1128
   1129// Floating point immediate.
   1130enum FPImmediateOp {
   1131  FPImmediateFixed = 0x1E201000,
   1132  FPImmediateFMask = 0x5F201C00,
   1133  FPImmediateMask  = 0xFFE01C00,
   1134  FMOV_s_imm       = FPImmediateFixed | 0x00000000,
   1135  FMOV_d_imm       = FPImmediateFixed | FP64 | 0x00000000
   1136};
   1137
   1138// Floating point data processing 1 source.
   1139enum FPDataProcessing1SourceOp {
   1140  FPDataProcessing1SourceFixed = 0x1E204000,
   1141  FPDataProcessing1SourceFMask = 0x5F207C00,
   1142  FPDataProcessing1SourceMask  = 0xFFFFFC00,
   1143  FMOV_s   = FPDataProcessing1SourceFixed | 0x00000000,
   1144  FMOV_d   = FPDataProcessing1SourceFixed | FP64 | 0x00000000,
   1145  FMOV     = FMOV_s,
   1146  FABS_s   = FPDataProcessing1SourceFixed | 0x00008000,
   1147  FABS_d   = FPDataProcessing1SourceFixed | FP64 | 0x00008000,
   1148  FABS     = FABS_s,
   1149  FNEG_s   = FPDataProcessing1SourceFixed | 0x00010000,
   1150  FNEG_d   = FPDataProcessing1SourceFixed | FP64 | 0x00010000,
   1151  FNEG     = FNEG_s,
   1152  FSQRT_s  = FPDataProcessing1SourceFixed | 0x00018000,
   1153  FSQRT_d  = FPDataProcessing1SourceFixed | FP64 | 0x00018000,
   1154  FSQRT    = FSQRT_s,
   1155  FCVT_ds  = FPDataProcessing1SourceFixed | 0x00028000,
   1156  FCVT_sd  = FPDataProcessing1SourceFixed | FP64 | 0x00020000,
   1157  FCVT_hs  = FPDataProcessing1SourceFixed | 0x00038000,
   1158  FCVT_hd  = FPDataProcessing1SourceFixed | FP64 | 0x00038000,
   1159  FCVT_sh  = FPDataProcessing1SourceFixed | 0x00C20000,
   1160  FCVT_dh  = FPDataProcessing1SourceFixed | 0x00C28000,
   1161  FRINTN_s = FPDataProcessing1SourceFixed | 0x00040000,
   1162  FRINTN_d = FPDataProcessing1SourceFixed | FP64 | 0x00040000,
   1163  FRINTN   = FRINTN_s,
   1164  FRINTP_s = FPDataProcessing1SourceFixed | 0x00048000,
   1165  FRINTP_d = FPDataProcessing1SourceFixed | FP64 | 0x00048000,
   1166  FRINTP   = FRINTP_s,
   1167  FRINTM_s = FPDataProcessing1SourceFixed | 0x00050000,
   1168  FRINTM_d = FPDataProcessing1SourceFixed | FP64 | 0x00050000,
   1169  FRINTM   = FRINTM_s,
   1170  FRINTZ_s = FPDataProcessing1SourceFixed | 0x00058000,
   1171  FRINTZ_d = FPDataProcessing1SourceFixed | FP64 | 0x00058000,
   1172  FRINTZ   = FRINTZ_s,
   1173  FRINTA_s = FPDataProcessing1SourceFixed | 0x00060000,
   1174  FRINTA_d = FPDataProcessing1SourceFixed | FP64 | 0x00060000,
   1175  FRINTA   = FRINTA_s,
   1176  FRINTX_s = FPDataProcessing1SourceFixed | 0x00070000,
   1177  FRINTX_d = FPDataProcessing1SourceFixed | FP64 | 0x00070000,
   1178  FRINTX   = FRINTX_s,
   1179  FRINTI_s = FPDataProcessing1SourceFixed | 0x00078000,
   1180  FRINTI_d = FPDataProcessing1SourceFixed | FP64 | 0x00078000,
   1181  FRINTI   = FRINTI_s
   1182};
   1183
   1184// Floating point data processing 2 source.
   1185enum FPDataProcessing2SourceOp {
   1186  FPDataProcessing2SourceFixed = 0x1E200800,
   1187  FPDataProcessing2SourceFMask = 0x5F200C00,
   1188  FPDataProcessing2SourceMask  = 0xFFE0FC00,
   1189  FMUL     = FPDataProcessing2SourceFixed | 0x00000000,
   1190  FMUL_s   = FMUL,
   1191  FMUL_d   = FMUL | FP64,
   1192  FDIV     = FPDataProcessing2SourceFixed | 0x00001000,
   1193  FDIV_s   = FDIV,
   1194  FDIV_d   = FDIV | FP64,
   1195  FADD     = FPDataProcessing2SourceFixed | 0x00002000,
   1196  FADD_s   = FADD,
   1197  FADD_d   = FADD | FP64,
   1198  FSUB     = FPDataProcessing2SourceFixed | 0x00003000,
   1199  FSUB_s   = FSUB,
   1200  FSUB_d   = FSUB | FP64,
   1201  FMAX     = FPDataProcessing2SourceFixed | 0x00004000,
   1202  FMAX_s   = FMAX,
   1203  FMAX_d   = FMAX | FP64,
   1204  FMIN     = FPDataProcessing2SourceFixed | 0x00005000,
   1205  FMIN_s   = FMIN,
   1206  FMIN_d   = FMIN | FP64,
   1207  FMAXNM   = FPDataProcessing2SourceFixed | 0x00006000,
   1208  FMAXNM_s = FMAXNM,
   1209  FMAXNM_d = FMAXNM | FP64,
   1210  FMINNM   = FPDataProcessing2SourceFixed | 0x00007000,
   1211  FMINNM_s = FMINNM,
   1212  FMINNM_d = FMINNM | FP64,
   1213  FNMUL    = FPDataProcessing2SourceFixed | 0x00008000,
   1214  FNMUL_s  = FNMUL,
   1215  FNMUL_d  = FNMUL | FP64
   1216};
   1217
   1218// Floating point data processing 3 source.
   1219enum FPDataProcessing3SourceOp {
   1220  FPDataProcessing3SourceFixed = 0x1F000000,
   1221  FPDataProcessing3SourceFMask = 0x5F000000,
   1222  FPDataProcessing3SourceMask  = 0xFFE08000,
   1223  FMADD_s                      = FPDataProcessing3SourceFixed | 0x00000000,
   1224  FMSUB_s                      = FPDataProcessing3SourceFixed | 0x00008000,
   1225  FNMADD_s                     = FPDataProcessing3SourceFixed | 0x00200000,
   1226  FNMSUB_s                     = FPDataProcessing3SourceFixed | 0x00208000,
   1227  FMADD_d                      = FPDataProcessing3SourceFixed | 0x00400000,
   1228  FMSUB_d                      = FPDataProcessing3SourceFixed | 0x00408000,
   1229  FNMADD_d                     = FPDataProcessing3SourceFixed | 0x00600000,
   1230  FNMSUB_d                     = FPDataProcessing3SourceFixed | 0x00608000
   1231};
   1232
   1233// Conversion between floating point and integer.
   1234enum FPIntegerConvertOp {
   1235  FPIntegerConvertFixed = 0x1E200000,
   1236  FPIntegerConvertFMask = 0x5F20FC00,
   1237  FPIntegerConvertMask  = 0xFFFFFC00,
   1238  FCVTNS    = FPIntegerConvertFixed | 0x00000000,
   1239  FCVTNS_ws = FCVTNS,
   1240  FCVTNS_xs = FCVTNS | SixtyFourBits,
   1241  FCVTNS_wd = FCVTNS | FP64,
   1242  FCVTNS_xd = FCVTNS | SixtyFourBits | FP64,
   1243  FCVTNU    = FPIntegerConvertFixed | 0x00010000,
   1244  FCVTNU_ws = FCVTNU,
   1245  FCVTNU_xs = FCVTNU | SixtyFourBits,
   1246  FCVTNU_wd = FCVTNU | FP64,
   1247  FCVTNU_xd = FCVTNU | SixtyFourBits | FP64,
   1248  FCVTPS    = FPIntegerConvertFixed | 0x00080000,
   1249  FCVTPS_ws = FCVTPS,
   1250  FCVTPS_xs = FCVTPS | SixtyFourBits,
   1251  FCVTPS_wd = FCVTPS | FP64,
   1252  FCVTPS_xd = FCVTPS | SixtyFourBits | FP64,
   1253  FCVTPU    = FPIntegerConvertFixed | 0x00090000,
   1254  FCVTPU_ws = FCVTPU,
   1255  FCVTPU_xs = FCVTPU | SixtyFourBits,
   1256  FCVTPU_wd = FCVTPU | FP64,
   1257  FCVTPU_xd = FCVTPU | SixtyFourBits | FP64,
   1258  FCVTMS    = FPIntegerConvertFixed | 0x00100000,
   1259  FCVTMS_ws = FCVTMS,
   1260  FCVTMS_xs = FCVTMS | SixtyFourBits,
   1261  FCVTMS_wd = FCVTMS | FP64,
   1262  FCVTMS_xd = FCVTMS | SixtyFourBits | FP64,
   1263  FCVTMU    = FPIntegerConvertFixed | 0x00110000,
   1264  FCVTMU_ws = FCVTMU,
   1265  FCVTMU_xs = FCVTMU | SixtyFourBits,
   1266  FCVTMU_wd = FCVTMU | FP64,
   1267  FCVTMU_xd = FCVTMU | SixtyFourBits | FP64,
   1268  FCVTZS    = FPIntegerConvertFixed | 0x00180000,
   1269  FCVTZS_ws = FCVTZS,
   1270  FCVTZS_xs = FCVTZS | SixtyFourBits,
   1271  FCVTZS_wd = FCVTZS | FP64,
   1272  FCVTZS_xd = FCVTZS | SixtyFourBits | FP64,
   1273  FCVTZU    = FPIntegerConvertFixed | 0x00190000,
   1274  FCVTZU_ws = FCVTZU,
   1275  FCVTZU_xs = FCVTZU | SixtyFourBits,
   1276  FCVTZU_wd = FCVTZU | FP64,
   1277  FCVTZU_xd = FCVTZU | SixtyFourBits | FP64,
   1278  SCVTF     = FPIntegerConvertFixed | 0x00020000,
   1279  SCVTF_sw  = SCVTF,
   1280  SCVTF_sx  = SCVTF | SixtyFourBits,
   1281  SCVTF_dw  = SCVTF | FP64,
   1282  SCVTF_dx  = SCVTF | SixtyFourBits | FP64,
   1283  UCVTF     = FPIntegerConvertFixed | 0x00030000,
   1284  UCVTF_sw  = UCVTF,
   1285  UCVTF_sx  = UCVTF | SixtyFourBits,
   1286  UCVTF_dw  = UCVTF | FP64,
   1287  UCVTF_dx  = UCVTF | SixtyFourBits | FP64,
   1288  FCVTAS    = FPIntegerConvertFixed | 0x00040000,
   1289  FCVTAS_ws = FCVTAS,
   1290  FCVTAS_xs = FCVTAS | SixtyFourBits,
   1291  FCVTAS_wd = FCVTAS | FP64,
   1292  FCVTAS_xd = FCVTAS | SixtyFourBits | FP64,
   1293  FCVTAU    = FPIntegerConvertFixed | 0x00050000,
   1294  FCVTAU_ws = FCVTAU,
   1295  FCVTAU_xs = FCVTAU | SixtyFourBits,
   1296  FCVTAU_wd = FCVTAU | FP64,
   1297  FCVTAU_xd = FCVTAU | SixtyFourBits | FP64,
   1298  FMOV_ws   = FPIntegerConvertFixed | 0x00060000,
   1299  FMOV_sw   = FPIntegerConvertFixed | 0x00070000,
   1300  FMOV_xd   = FMOV_ws | SixtyFourBits | FP64,
   1301  FMOV_dx   = FMOV_sw | SixtyFourBits | FP64,
   1302  FMOV_d1_x = FPIntegerConvertFixed | SixtyFourBits | 0x008F0000,
   1303  FMOV_x_d1 = FPIntegerConvertFixed | SixtyFourBits | 0x008E0000
   1304};
   1305
   1306// Conversion between fixed point and floating point.
   1307enum FPFixedPointConvertOp {
   1308  FPFixedPointConvertFixed = 0x1E000000,
   1309  FPFixedPointConvertFMask = 0x5F200000,
   1310  FPFixedPointConvertMask  = 0xFFFF0000,
   1311  FCVTZS_fixed    = FPFixedPointConvertFixed | 0x00180000,
   1312  FCVTZS_ws_fixed = FCVTZS_fixed,
   1313  FCVTZS_xs_fixed = FCVTZS_fixed | SixtyFourBits,
   1314  FCVTZS_wd_fixed = FCVTZS_fixed | FP64,
   1315  FCVTZS_xd_fixed = FCVTZS_fixed | SixtyFourBits | FP64,
   1316  FCVTZU_fixed    = FPFixedPointConvertFixed | 0x00190000,
   1317  FCVTZU_ws_fixed = FCVTZU_fixed,
   1318  FCVTZU_xs_fixed = FCVTZU_fixed | SixtyFourBits,
   1319  FCVTZU_wd_fixed = FCVTZU_fixed | FP64,
   1320  FCVTZU_xd_fixed = FCVTZU_fixed | SixtyFourBits | FP64,
   1321  SCVTF_fixed     = FPFixedPointConvertFixed | 0x00020000,
   1322  SCVTF_sw_fixed  = SCVTF_fixed,
   1323  SCVTF_sx_fixed  = SCVTF_fixed | SixtyFourBits,
   1324  SCVTF_dw_fixed  = SCVTF_fixed | FP64,
   1325  SCVTF_dx_fixed  = SCVTF_fixed | SixtyFourBits | FP64,
   1326  UCVTF_fixed     = FPFixedPointConvertFixed | 0x00030000,
   1327  UCVTF_sw_fixed  = UCVTF_fixed,
   1328  UCVTF_sx_fixed  = UCVTF_fixed | SixtyFourBits,
   1329  UCVTF_dw_fixed  = UCVTF_fixed | FP64,
   1330  UCVTF_dx_fixed  = UCVTF_fixed | SixtyFourBits | FP64
   1331};
   1332
   1333// Crypto - two register SHA.
   1334enum Crypto2RegSHAOp {
   1335  Crypto2RegSHAFixed = 0x5E280800,
   1336  Crypto2RegSHAFMask = 0xFF3E0C00
   1337};
   1338
   1339// Crypto - three register SHA.
   1340enum Crypto3RegSHAOp {
   1341  Crypto3RegSHAFixed = 0x5E000000,
   1342  Crypto3RegSHAFMask = 0xFF208C00
   1343};
   1344
   1345// Crypto - AES.
   1346enum CryptoAESOp {
   1347  CryptoAESFixed = 0x4E280800,
   1348  CryptoAESFMask = 0xFF3E0C00
   1349};
   1350
   1351// NEON instructions with two register operands.
   1352enum NEON2RegMiscOp {
   1353  NEON2RegMiscFixed = 0x0E200800,
   1354  NEON2RegMiscFMask = 0x9F3E0C00,
   1355  NEON2RegMiscMask  = 0xBF3FFC00,
   1356  NEON2RegMiscUBit  = 0x20000000,
   1357  NEON_REV64     = NEON2RegMiscFixed | 0x00000000,
   1358  NEON_REV32     = NEON2RegMiscFixed | 0x20000000,
   1359  NEON_REV16     = NEON2RegMiscFixed | 0x00001000,
   1360  NEON_SADDLP    = NEON2RegMiscFixed | 0x00002000,
   1361  NEON_UADDLP    = NEON_SADDLP | NEON2RegMiscUBit,
   1362  NEON_SUQADD    = NEON2RegMiscFixed | 0x00003000,
   1363  NEON_USQADD    = NEON_SUQADD | NEON2RegMiscUBit,
   1364  NEON_CLS       = NEON2RegMiscFixed | 0x00004000,
   1365  NEON_CLZ       = NEON2RegMiscFixed | 0x20004000,
   1366  NEON_CNT       = NEON2RegMiscFixed | 0x00005000,
   1367  NEON_RBIT_NOT  = NEON2RegMiscFixed | 0x20005000,
   1368  NEON_SADALP    = NEON2RegMiscFixed | 0x00006000,
   1369  NEON_UADALP    = NEON_SADALP | NEON2RegMiscUBit,
   1370  NEON_SQABS     = NEON2RegMiscFixed | 0x00007000,
   1371  NEON_SQNEG     = NEON2RegMiscFixed | 0x20007000,
   1372  NEON_CMGT_zero = NEON2RegMiscFixed | 0x00008000,
   1373  NEON_CMGE_zero = NEON2RegMiscFixed | 0x20008000,
   1374  NEON_CMEQ_zero = NEON2RegMiscFixed | 0x00009000,
   1375  NEON_CMLE_zero = NEON2RegMiscFixed | 0x20009000,
   1376  NEON_CMLT_zero = NEON2RegMiscFixed | 0x0000A000,
   1377  NEON_ABS       = NEON2RegMiscFixed | 0x0000B000,
   1378  NEON_NEG       = NEON2RegMiscFixed | 0x2000B000,
   1379  NEON_XTN       = NEON2RegMiscFixed | 0x00012000,
   1380  NEON_SQXTUN    = NEON2RegMiscFixed | 0x20012000,
   1381  NEON_SHLL      = NEON2RegMiscFixed | 0x20013000,
   1382  NEON_SQXTN     = NEON2RegMiscFixed | 0x00014000,
   1383  NEON_UQXTN     = NEON_SQXTN | NEON2RegMiscUBit,
   1384
   1385  NEON2RegMiscOpcode = 0x0001F000,
   1386  NEON_RBIT_NOT_opcode = NEON_RBIT_NOT & NEON2RegMiscOpcode,
   1387  NEON_NEG_opcode = NEON_NEG & NEON2RegMiscOpcode,
   1388  NEON_XTN_opcode = NEON_XTN & NEON2RegMiscOpcode,
   1389  NEON_UQXTN_opcode = NEON_UQXTN & NEON2RegMiscOpcode,
   1390
   1391  // These instructions use only one bit of the size field. The other bit is
   1392  // used to distinguish between instructions.
   1393  NEON2RegMiscFPMask = NEON2RegMiscMask | 0x00800000,
   1394  NEON_FABS   = NEON2RegMiscFixed | 0x0080F000,
   1395  NEON_FNEG   = NEON2RegMiscFixed | 0x2080F000,
   1396  NEON_FCVTN  = NEON2RegMiscFixed | 0x00016000,
   1397  NEON_FCVTXN = NEON2RegMiscFixed | 0x20016000,
   1398  NEON_FCVTL  = NEON2RegMiscFixed | 0x00017000,
   1399  NEON_FRINTN = NEON2RegMiscFixed | 0x00018000,
   1400  NEON_FRINTA = NEON2RegMiscFixed | 0x20018000,
   1401  NEON_FRINTP = NEON2RegMiscFixed | 0x00818000,
   1402  NEON_FRINTM = NEON2RegMiscFixed | 0x00019000,
   1403  NEON_FRINTX = NEON2RegMiscFixed | 0x20019000,
   1404  NEON_FRINTZ = NEON2RegMiscFixed | 0x00819000,
   1405  NEON_FRINTI = NEON2RegMiscFixed | 0x20819000,
   1406  NEON_FCVTNS = NEON2RegMiscFixed | 0x0001A000,
   1407  NEON_FCVTNU = NEON_FCVTNS | NEON2RegMiscUBit,
   1408  NEON_FCVTPS = NEON2RegMiscFixed | 0x0081A000,
   1409  NEON_FCVTPU = NEON_FCVTPS | NEON2RegMiscUBit,
   1410  NEON_FCVTMS = NEON2RegMiscFixed | 0x0001B000,
   1411  NEON_FCVTMU = NEON_FCVTMS | NEON2RegMiscUBit,
   1412  NEON_FCVTZS = NEON2RegMiscFixed | 0x0081B000,
   1413  NEON_FCVTZU = NEON_FCVTZS | NEON2RegMiscUBit,
   1414  NEON_FCVTAS = NEON2RegMiscFixed | 0x0001C000,
   1415  NEON_FCVTAU = NEON_FCVTAS | NEON2RegMiscUBit,
   1416  NEON_FSQRT  = NEON2RegMiscFixed | 0x2081F000,
   1417  NEON_SCVTF  = NEON2RegMiscFixed | 0x0001D000,
   1418  NEON_UCVTF  = NEON_SCVTF | NEON2RegMiscUBit,
   1419  NEON_URSQRTE = NEON2RegMiscFixed | 0x2081C000,
   1420  NEON_URECPE  = NEON2RegMiscFixed | 0x0081C000,
   1421  NEON_FRSQRTE = NEON2RegMiscFixed | 0x2081D000,
   1422  NEON_FRECPE  = NEON2RegMiscFixed | 0x0081D000,
   1423  NEON_FCMGT_zero = NEON2RegMiscFixed | 0x0080C000,
   1424  NEON_FCMGE_zero = NEON2RegMiscFixed | 0x2080C000,
   1425  NEON_FCMEQ_zero = NEON2RegMiscFixed | 0x0080D000,
   1426  NEON_FCMLE_zero = NEON2RegMiscFixed | 0x2080D000,
   1427  NEON_FCMLT_zero = NEON2RegMiscFixed | 0x0080E000,
   1428
   1429  NEON_FCVTL_opcode = NEON_FCVTL & NEON2RegMiscOpcode,
   1430  NEON_FCVTN_opcode = NEON_FCVTN & NEON2RegMiscOpcode
   1431};
   1432
   1433// NEON instructions with three same-type operands.
   1434enum NEON3SameOp {
   1435  NEON3SameFixed = 0x0E200400,
   1436  NEON3SameFMask = 0x9F200400,
   1437  NEON3SameMask = 0xBF20FC00,
   1438  NEON3SameUBit = 0x20000000,
   1439  NEON_ADD    = NEON3SameFixed | 0x00008000,
   1440  NEON_ADDP   = NEON3SameFixed | 0x0000B800,
   1441  NEON_SHADD  = NEON3SameFixed | 0x00000000,
   1442  NEON_SHSUB  = NEON3SameFixed | 0x00002000,
   1443  NEON_SRHADD = NEON3SameFixed | 0x00001000,
   1444  NEON_CMEQ   = NEON3SameFixed | NEON3SameUBit | 0x00008800,
   1445  NEON_CMGE   = NEON3SameFixed | 0x00003800,
   1446  NEON_CMGT   = NEON3SameFixed | 0x00003000,
   1447  NEON_CMHI   = NEON3SameFixed | NEON3SameUBit | NEON_CMGT,
   1448  NEON_CMHS   = NEON3SameFixed | NEON3SameUBit | NEON_CMGE,
   1449  NEON_CMTST  = NEON3SameFixed | 0x00008800,
   1450  NEON_MLA    = NEON3SameFixed | 0x00009000,
   1451  NEON_MLS    = NEON3SameFixed | 0x20009000,
   1452  NEON_MUL    = NEON3SameFixed | 0x00009800,
   1453  NEON_PMUL   = NEON3SameFixed | 0x20009800,
   1454  NEON_SRSHL  = NEON3SameFixed | 0x00005000,
   1455  NEON_SQSHL  = NEON3SameFixed | 0x00004800,
   1456  NEON_SQRSHL = NEON3SameFixed | 0x00005800,
   1457  NEON_SSHL   = NEON3SameFixed | 0x00004000,
   1458  NEON_SMAX   = NEON3SameFixed | 0x00006000,
   1459  NEON_SMAXP  = NEON3SameFixed | 0x0000A000,
   1460  NEON_SMIN   = NEON3SameFixed | 0x00006800,
   1461  NEON_SMINP  = NEON3SameFixed | 0x0000A800,
   1462  NEON_SABD   = NEON3SameFixed | 0x00007000,
   1463  NEON_SABA   = NEON3SameFixed | 0x00007800,
   1464  NEON_UABD   = NEON3SameFixed | NEON3SameUBit | NEON_SABD,
   1465  NEON_UABA   = NEON3SameFixed | NEON3SameUBit | NEON_SABA,
   1466  NEON_SQADD  = NEON3SameFixed | 0x00000800,
   1467  NEON_SQSUB  = NEON3SameFixed | 0x00002800,
   1468  NEON_SUB    = NEON3SameFixed | NEON3SameUBit | 0x00008000,
   1469  NEON_UHADD  = NEON3SameFixed | NEON3SameUBit | NEON_SHADD,
   1470  NEON_UHSUB  = NEON3SameFixed | NEON3SameUBit | NEON_SHSUB,
   1471  NEON_URHADD = NEON3SameFixed | NEON3SameUBit | NEON_SRHADD,
   1472  NEON_UMAX   = NEON3SameFixed | NEON3SameUBit | NEON_SMAX,
   1473  NEON_UMAXP  = NEON3SameFixed | NEON3SameUBit | NEON_SMAXP,
   1474  NEON_UMIN   = NEON3SameFixed | NEON3SameUBit | NEON_SMIN,
   1475  NEON_UMINP  = NEON3SameFixed | NEON3SameUBit | NEON_SMINP,
   1476  NEON_URSHL  = NEON3SameFixed | NEON3SameUBit | NEON_SRSHL,
   1477  NEON_UQADD  = NEON3SameFixed | NEON3SameUBit | NEON_SQADD,
   1478  NEON_UQRSHL = NEON3SameFixed | NEON3SameUBit | NEON_SQRSHL,
   1479  NEON_UQSHL  = NEON3SameFixed | NEON3SameUBit | NEON_SQSHL,
   1480  NEON_UQSUB  = NEON3SameFixed | NEON3SameUBit | NEON_SQSUB,
   1481  NEON_USHL   = NEON3SameFixed | NEON3SameUBit | NEON_SSHL,
   1482  NEON_SQDMULH  = NEON3SameFixed | 0x0000B000,
   1483  NEON_SQRDMULH = NEON3SameFixed | 0x2000B000,
   1484
   1485  // NEON floating point instructions with three same-type operands.
   1486  NEON3SameFPFixed = NEON3SameFixed | 0x0000C000,
   1487  NEON3SameFPFMask = NEON3SameFMask | 0x0000C000,
   1488  NEON3SameFPMask = NEON3SameMask | 0x00800000,
   1489  NEON_FADD    = NEON3SameFixed | 0x0000D000,
   1490  NEON_FSUB    = NEON3SameFixed | 0x0080D000,
   1491  NEON_FMUL    = NEON3SameFixed | 0x2000D800,
   1492  NEON_FDIV    = NEON3SameFixed | 0x2000F800,
   1493  NEON_FMAX    = NEON3SameFixed | 0x0000F000,
   1494  NEON_FMAXNM  = NEON3SameFixed | 0x0000C000,
   1495  NEON_FMAXP   = NEON3SameFixed | 0x2000F000,
   1496  NEON_FMAXNMP = NEON3SameFixed | 0x2000C000,
   1497  NEON_FMIN    = NEON3SameFixed | 0x0080F000,
   1498  NEON_FMINNM  = NEON3SameFixed | 0x0080C000,
   1499  NEON_FMINP   = NEON3SameFixed | 0x2080F000,
   1500  NEON_FMINNMP = NEON3SameFixed | 0x2080C000,
   1501  NEON_FMLA    = NEON3SameFixed | 0x0000C800,
   1502  NEON_FMLS    = NEON3SameFixed | 0x0080C800,
   1503  NEON_FMULX   = NEON3SameFixed | 0x0000D800,
   1504  NEON_FRECPS  = NEON3SameFixed | 0x0000F800,
   1505  NEON_FRSQRTS = NEON3SameFixed | 0x0080F800,
   1506  NEON_FABD    = NEON3SameFixed | 0x2080D000,
   1507  NEON_FADDP   = NEON3SameFixed | 0x2000D000,
   1508  NEON_FCMEQ   = NEON3SameFixed | 0x0000E000,
   1509  NEON_FCMGE   = NEON3SameFixed | 0x2000E000,
   1510  NEON_FCMGT   = NEON3SameFixed | 0x2080E000,
   1511  NEON_FACGE   = NEON3SameFixed | 0x2000E800,
   1512  NEON_FACGT   = NEON3SameFixed | 0x2080E800,
   1513
   1514  // NEON logical instructions with three same-type operands.
   1515  NEON3SameLogicalFixed = NEON3SameFixed | 0x00001800,
   1516  NEON3SameLogicalFMask = NEON3SameFMask | 0x0000F800,
   1517  NEON3SameLogicalMask = 0xBFE0FC00,
   1518  NEON3SameLogicalFormatMask = NEON_Q,
   1519  NEON_AND = NEON3SameLogicalFixed | 0x00000000,
   1520  NEON_ORR = NEON3SameLogicalFixed | 0x00A00000,
   1521  NEON_ORN = NEON3SameLogicalFixed | 0x00C00000,
   1522  NEON_EOR = NEON3SameLogicalFixed | 0x20000000,
   1523  NEON_BIC = NEON3SameLogicalFixed | 0x00400000,
   1524  NEON_BIF = NEON3SameLogicalFixed | 0x20C00000,
   1525  NEON_BIT = NEON3SameLogicalFixed | 0x20800000,
   1526  NEON_BSL = NEON3SameLogicalFixed | 0x20400000
   1527};
   1528
   1529// NEON instructions with three different-type operands.
   1530enum NEON3DifferentOp {
   1531  NEON3DifferentFixed = 0x0E200000,
   1532  NEON3DifferentFMask = 0x9F200C00,
   1533  NEON3DifferentMask  = 0xFF20FC00,
   1534  NEON_ADDHN    = NEON3DifferentFixed | 0x00004000,
   1535  NEON_ADDHN2   = NEON_ADDHN | NEON_Q,
   1536  NEON_PMULL    = NEON3DifferentFixed | 0x0000E000,
   1537  NEON_PMULL2   = NEON_PMULL | NEON_Q,
   1538  NEON_RADDHN   = NEON3DifferentFixed | 0x20004000,
   1539  NEON_RADDHN2  = NEON_RADDHN | NEON_Q,
   1540  NEON_RSUBHN   = NEON3DifferentFixed | 0x20006000,
   1541  NEON_RSUBHN2  = NEON_RSUBHN | NEON_Q,
   1542  NEON_SABAL    = NEON3DifferentFixed | 0x00005000,
   1543  NEON_SABAL2   = NEON_SABAL | NEON_Q,
   1544  NEON_SABDL    = NEON3DifferentFixed | 0x00007000,
   1545  NEON_SABDL2   = NEON_SABDL | NEON_Q,
   1546  NEON_SADDL    = NEON3DifferentFixed | 0x00000000,
   1547  NEON_SADDL2   = NEON_SADDL | NEON_Q,
   1548  NEON_SADDW    = NEON3DifferentFixed | 0x00001000,
   1549  NEON_SADDW2   = NEON_SADDW | NEON_Q,
   1550  NEON_SMLAL    = NEON3DifferentFixed | 0x00008000,
   1551  NEON_SMLAL2   = NEON_SMLAL | NEON_Q,
   1552  NEON_SMLSL    = NEON3DifferentFixed | 0x0000A000,
   1553  NEON_SMLSL2   = NEON_SMLSL | NEON_Q,
   1554  NEON_SMULL    = NEON3DifferentFixed | 0x0000C000,
   1555  NEON_SMULL2   = NEON_SMULL | NEON_Q,
   1556  NEON_SSUBL    = NEON3DifferentFixed | 0x00002000,
   1557  NEON_SSUBL2   = NEON_SSUBL | NEON_Q,
   1558  NEON_SSUBW    = NEON3DifferentFixed | 0x00003000,
   1559  NEON_SSUBW2   = NEON_SSUBW | NEON_Q,
   1560  NEON_SQDMLAL  = NEON3DifferentFixed | 0x00009000,
   1561  NEON_SQDMLAL2 = NEON_SQDMLAL | NEON_Q,
   1562  NEON_SQDMLSL  = NEON3DifferentFixed | 0x0000B000,
   1563  NEON_SQDMLSL2 = NEON_SQDMLSL | NEON_Q,
   1564  NEON_SQDMULL  = NEON3DifferentFixed | 0x0000D000,
   1565  NEON_SQDMULL2 = NEON_SQDMULL | NEON_Q,
   1566  NEON_SUBHN    = NEON3DifferentFixed | 0x00006000,
   1567  NEON_SUBHN2   = NEON_SUBHN | NEON_Q,
   1568  NEON_UABAL    = NEON_SABAL | NEON3SameUBit,
   1569  NEON_UABAL2   = NEON_UABAL | NEON_Q,
   1570  NEON_UABDL    = NEON_SABDL | NEON3SameUBit,
   1571  NEON_UABDL2   = NEON_UABDL | NEON_Q,
   1572  NEON_UADDL    = NEON_SADDL | NEON3SameUBit,
   1573  NEON_UADDL2   = NEON_UADDL | NEON_Q,
   1574  NEON_UADDW    = NEON_SADDW | NEON3SameUBit,
   1575  NEON_UADDW2   = NEON_UADDW | NEON_Q,
   1576  NEON_UMLAL    = NEON_SMLAL | NEON3SameUBit,
   1577  NEON_UMLAL2   = NEON_UMLAL | NEON_Q,
   1578  NEON_UMLSL    = NEON_SMLSL | NEON3SameUBit,
   1579  NEON_UMLSL2   = NEON_UMLSL | NEON_Q,
   1580  NEON_UMULL    = NEON_SMULL | NEON3SameUBit,
   1581  NEON_UMULL2   = NEON_UMULL | NEON_Q,
   1582  NEON_USUBL    = NEON_SSUBL | NEON3SameUBit,
   1583  NEON_USUBL2   = NEON_USUBL | NEON_Q,
   1584  NEON_USUBW    = NEON_SSUBW | NEON3SameUBit,
   1585  NEON_USUBW2   = NEON_USUBW | NEON_Q
   1586};
   1587
   1588// NEON instructions operating across vectors.
   1589enum NEONAcrossLanesOp {
   1590  NEONAcrossLanesFixed = 0x0E300800,
   1591  NEONAcrossLanesFMask = 0x9F3E0C00,
   1592  NEONAcrossLanesMask  = 0xBF3FFC00,
   1593  NEON_ADDV   = NEONAcrossLanesFixed | 0x0001B000,
   1594  NEON_SADDLV = NEONAcrossLanesFixed | 0x00003000,
   1595  NEON_UADDLV = NEONAcrossLanesFixed | 0x20003000,
   1596  NEON_SMAXV  = NEONAcrossLanesFixed | 0x0000A000,
   1597  NEON_SMINV  = NEONAcrossLanesFixed | 0x0001A000,
   1598  NEON_UMAXV  = NEONAcrossLanesFixed | 0x2000A000,
   1599  NEON_UMINV  = NEONAcrossLanesFixed | 0x2001A000,
   1600
   1601  // NEON floating point across instructions.
   1602  NEONAcrossLanesFPFixed = NEONAcrossLanesFixed | 0x0000C000,
   1603  NEONAcrossLanesFPFMask = NEONAcrossLanesFMask | 0x0000C000,
   1604  NEONAcrossLanesFPMask  = NEONAcrossLanesMask  | 0x00800000,
   1605
   1606  NEON_FMAXV   = NEONAcrossLanesFPFixed | 0x2000F000,
   1607  NEON_FMINV   = NEONAcrossLanesFPFixed | 0x2080F000,
   1608  NEON_FMAXNMV = NEONAcrossLanesFPFixed | 0x2000C000,
   1609  NEON_FMINNMV = NEONAcrossLanesFPFixed | 0x2080C000
   1610};
   1611
   1612// NEON instructions with indexed element operand.
   1613enum NEONByIndexedElementOp {
   1614  NEONByIndexedElementFixed = 0x0F000000,
   1615  NEONByIndexedElementFMask = 0x9F000400,
   1616  NEONByIndexedElementMask  = 0xBF00F400,
   1617  NEON_MUL_byelement   = NEONByIndexedElementFixed | 0x00008000,
   1618  NEON_MLA_byelement   = NEONByIndexedElementFixed | 0x20000000,
   1619  NEON_MLS_byelement   = NEONByIndexedElementFixed | 0x20004000,
   1620  NEON_SMULL_byelement = NEONByIndexedElementFixed | 0x0000A000,
   1621  NEON_SMLAL_byelement = NEONByIndexedElementFixed | 0x00002000,
   1622  NEON_SMLSL_byelement = NEONByIndexedElementFixed | 0x00006000,
   1623  NEON_UMULL_byelement = NEONByIndexedElementFixed | 0x2000A000,
   1624  NEON_UMLAL_byelement = NEONByIndexedElementFixed | 0x20002000,
   1625  NEON_UMLSL_byelement = NEONByIndexedElementFixed | 0x20006000,
   1626  NEON_SQDMULL_byelement = NEONByIndexedElementFixed | 0x0000B000,
   1627  NEON_SQDMLAL_byelement = NEONByIndexedElementFixed | 0x00003000,
   1628  NEON_SQDMLSL_byelement = NEONByIndexedElementFixed | 0x00007000,
   1629  NEON_SQDMULH_byelement  = NEONByIndexedElementFixed | 0x0000C000,
   1630  NEON_SQRDMULH_byelement = NEONByIndexedElementFixed | 0x0000D000,
   1631
   1632  // Floating point instructions.
   1633  NEONByIndexedElementFPFixed = NEONByIndexedElementFixed | 0x00800000,
   1634  NEONByIndexedElementFPMask = NEONByIndexedElementMask | 0x00800000,
   1635  NEON_FMLA_byelement  = NEONByIndexedElementFPFixed | 0x00001000,
   1636  NEON_FMLS_byelement  = NEONByIndexedElementFPFixed | 0x00005000,
   1637  NEON_FMUL_byelement  = NEONByIndexedElementFPFixed | 0x00009000,
   1638  NEON_FMULX_byelement = NEONByIndexedElementFPFixed | 0x20009000
   1639};
   1640
   1641// NEON register copy.
   1642enum NEONCopyOp {
   1643  NEONCopyFixed = 0x0E000400,
   1644  NEONCopyFMask = 0x9FE08400,
   1645  NEONCopyMask  = 0x3FE08400,
   1646  NEONCopyInsElementMask = NEONCopyMask | 0x40000000,
   1647  NEONCopyInsGeneralMask = NEONCopyMask | 0x40007800,
   1648  NEONCopyDupElementMask = NEONCopyMask | 0x20007800,
   1649  NEONCopyDupGeneralMask = NEONCopyDupElementMask,
   1650  NEONCopyUmovMask       = NEONCopyMask | 0x20007800,
   1651  NEONCopySmovMask       = NEONCopyMask | 0x20007800,
   1652  NEON_INS_ELEMENT       = NEONCopyFixed | 0x60000000,
   1653  NEON_INS_GENERAL       = NEONCopyFixed | 0x40001800,
   1654  NEON_DUP_ELEMENT       = NEONCopyFixed | 0x00000000,
   1655  NEON_DUP_GENERAL       = NEONCopyFixed | 0x00000800,
   1656  NEON_SMOV              = NEONCopyFixed | 0x00002800,
   1657  NEON_UMOV              = NEONCopyFixed | 0x00003800
   1658};
   1659
   1660// NEON extract.
   1661enum NEONExtractOp {
   1662  NEONExtractFixed = 0x2E000000,
   1663  NEONExtractFMask = 0xBF208400,
   1664  NEONExtractMask = 0xBFE08400,
   1665  NEON_EXT = NEONExtractFixed | 0x00000000
   1666};
   1667
   1668enum NEONLoadStoreMultiOp {
   1669  NEONLoadStoreMultiL    = 0x00400000,
   1670  NEONLoadStoreMulti1_1v = 0x00007000,
   1671  NEONLoadStoreMulti1_2v = 0x0000A000,
   1672  NEONLoadStoreMulti1_3v = 0x00006000,
   1673  NEONLoadStoreMulti1_4v = 0x00002000,
   1674  NEONLoadStoreMulti2    = 0x00008000,
   1675  NEONLoadStoreMulti3    = 0x00004000,
   1676  NEONLoadStoreMulti4    = 0x00000000
   1677};
   1678
   1679// NEON load/store multiple structures.
   1680enum NEONLoadStoreMultiStructOp {
   1681  NEONLoadStoreMultiStructFixed = 0x0C000000,
   1682  NEONLoadStoreMultiStructFMask = 0xBFBF0000,
   1683  NEONLoadStoreMultiStructMask  = 0xBFFFF000,
   1684  NEONLoadStoreMultiStructStore = NEONLoadStoreMultiStructFixed,
   1685  NEONLoadStoreMultiStructLoad  = NEONLoadStoreMultiStructFixed |
   1686                                  NEONLoadStoreMultiL,
   1687  NEON_LD1_1v = NEONLoadStoreMultiStructLoad | NEONLoadStoreMulti1_1v,
   1688  NEON_LD1_2v = NEONLoadStoreMultiStructLoad | NEONLoadStoreMulti1_2v,
   1689  NEON_LD1_3v = NEONLoadStoreMultiStructLoad | NEONLoadStoreMulti1_3v,
   1690  NEON_LD1_4v = NEONLoadStoreMultiStructLoad | NEONLoadStoreMulti1_4v,
   1691  NEON_LD2    = NEONLoadStoreMultiStructLoad | NEONLoadStoreMulti2,
   1692  NEON_LD3    = NEONLoadStoreMultiStructLoad | NEONLoadStoreMulti3,
   1693  NEON_LD4    = NEONLoadStoreMultiStructLoad | NEONLoadStoreMulti4,
   1694  NEON_ST1_1v = NEONLoadStoreMultiStructStore | NEONLoadStoreMulti1_1v,
   1695  NEON_ST1_2v = NEONLoadStoreMultiStructStore | NEONLoadStoreMulti1_2v,
   1696  NEON_ST1_3v = NEONLoadStoreMultiStructStore | NEONLoadStoreMulti1_3v,
   1697  NEON_ST1_4v = NEONLoadStoreMultiStructStore | NEONLoadStoreMulti1_4v,
   1698  NEON_ST2    = NEONLoadStoreMultiStructStore | NEONLoadStoreMulti2,
   1699  NEON_ST3    = NEONLoadStoreMultiStructStore | NEONLoadStoreMulti3,
   1700  NEON_ST4    = NEONLoadStoreMultiStructStore | NEONLoadStoreMulti4
   1701};
   1702
   1703// NEON load/store multiple structures with post-index addressing.
   1704enum NEONLoadStoreMultiStructPostIndexOp {
   1705  NEONLoadStoreMultiStructPostIndexFixed = 0x0C800000,
   1706  NEONLoadStoreMultiStructPostIndexFMask = 0xBFA00000,
   1707  NEONLoadStoreMultiStructPostIndexMask  = 0xBFE0F000,
   1708  NEONLoadStoreMultiStructPostIndex = 0x00800000,
   1709  NEON_LD1_1v_post = NEON_LD1_1v | NEONLoadStoreMultiStructPostIndex,
   1710  NEON_LD1_2v_post = NEON_LD1_2v | NEONLoadStoreMultiStructPostIndex,
   1711  NEON_LD1_3v_post = NEON_LD1_3v | NEONLoadStoreMultiStructPostIndex,
   1712  NEON_LD1_4v_post = NEON_LD1_4v | NEONLoadStoreMultiStructPostIndex,
   1713  NEON_LD2_post = NEON_LD2 | NEONLoadStoreMultiStructPostIndex,
   1714  NEON_LD3_post = NEON_LD3 | NEONLoadStoreMultiStructPostIndex,
   1715  NEON_LD4_post = NEON_LD4 | NEONLoadStoreMultiStructPostIndex,
   1716  NEON_ST1_1v_post = NEON_ST1_1v | NEONLoadStoreMultiStructPostIndex,
   1717  NEON_ST1_2v_post = NEON_ST1_2v | NEONLoadStoreMultiStructPostIndex,
   1718  NEON_ST1_3v_post = NEON_ST1_3v | NEONLoadStoreMultiStructPostIndex,
   1719  NEON_ST1_4v_post = NEON_ST1_4v | NEONLoadStoreMultiStructPostIndex,
   1720  NEON_ST2_post = NEON_ST2 | NEONLoadStoreMultiStructPostIndex,
   1721  NEON_ST3_post = NEON_ST3 | NEONLoadStoreMultiStructPostIndex,
   1722  NEON_ST4_post = NEON_ST4 | NEONLoadStoreMultiStructPostIndex
   1723};
   1724
   1725enum NEONLoadStoreSingleOp {
   1726  NEONLoadStoreSingle1        = 0x00000000,
   1727  NEONLoadStoreSingle2        = 0x00200000,
   1728  NEONLoadStoreSingle3        = 0x00002000,
   1729  NEONLoadStoreSingle4        = 0x00202000,
   1730  NEONLoadStoreSingleL        = 0x00400000,
   1731  NEONLoadStoreSingle_b       = 0x00000000,
   1732  NEONLoadStoreSingle_h       = 0x00004000,
   1733  NEONLoadStoreSingle_s       = 0x00008000,
   1734  NEONLoadStoreSingle_d       = 0x00008400,
   1735  NEONLoadStoreSingleAllLanes = 0x0000C000,
   1736  NEONLoadStoreSingleLenMask  = 0x00202000
   1737};
   1738
   1739// NEON load/store single structure.
   1740enum NEONLoadStoreSingleStructOp {
   1741  NEONLoadStoreSingleStructFixed = 0x0D000000,
   1742  NEONLoadStoreSingleStructFMask = 0xBF9F0000,
   1743  NEONLoadStoreSingleStructMask  = 0xBFFFE000,
   1744  NEONLoadStoreSingleStructStore = NEONLoadStoreSingleStructFixed,
   1745  NEONLoadStoreSingleStructLoad  = NEONLoadStoreSingleStructFixed |
   1746                                   NEONLoadStoreSingleL,
   1747  NEONLoadStoreSingleStructLoad1 = NEONLoadStoreSingle1 |
   1748                                   NEONLoadStoreSingleStructLoad,
   1749  NEONLoadStoreSingleStructLoad2 = NEONLoadStoreSingle2 |
   1750                                   NEONLoadStoreSingleStructLoad,
   1751  NEONLoadStoreSingleStructLoad3 = NEONLoadStoreSingle3 |
   1752                                   NEONLoadStoreSingleStructLoad,
   1753  NEONLoadStoreSingleStructLoad4 = NEONLoadStoreSingle4 |
   1754                                   NEONLoadStoreSingleStructLoad,
   1755  NEONLoadStoreSingleStructStore1 = NEONLoadStoreSingle1 |
   1756                                    NEONLoadStoreSingleStructFixed,
   1757  NEONLoadStoreSingleStructStore2 = NEONLoadStoreSingle2 |
   1758                                    NEONLoadStoreSingleStructFixed,
   1759  NEONLoadStoreSingleStructStore3 = NEONLoadStoreSingle3 |
   1760                                    NEONLoadStoreSingleStructFixed,
   1761  NEONLoadStoreSingleStructStore4 = NEONLoadStoreSingle4 |
   1762                                    NEONLoadStoreSingleStructFixed,
   1763  NEON_LD1_b = NEONLoadStoreSingleStructLoad1 | NEONLoadStoreSingle_b,
   1764  NEON_LD1_h = NEONLoadStoreSingleStructLoad1 | NEONLoadStoreSingle_h,
   1765  NEON_LD1_s = NEONLoadStoreSingleStructLoad1 | NEONLoadStoreSingle_s,
   1766  NEON_LD1_d = NEONLoadStoreSingleStructLoad1 | NEONLoadStoreSingle_d,
   1767  NEON_LD1R  = NEONLoadStoreSingleStructLoad1 | NEONLoadStoreSingleAllLanes,
   1768  NEON_ST1_b = NEONLoadStoreSingleStructStore1 | NEONLoadStoreSingle_b,
   1769  NEON_ST1_h = NEONLoadStoreSingleStructStore1 | NEONLoadStoreSingle_h,
   1770  NEON_ST1_s = NEONLoadStoreSingleStructStore1 | NEONLoadStoreSingle_s,
   1771  NEON_ST1_d = NEONLoadStoreSingleStructStore1 | NEONLoadStoreSingle_d,
   1772
   1773  NEON_LD2_b = NEONLoadStoreSingleStructLoad2 | NEONLoadStoreSingle_b,
   1774  NEON_LD2_h = NEONLoadStoreSingleStructLoad2 | NEONLoadStoreSingle_h,
   1775  NEON_LD2_s = NEONLoadStoreSingleStructLoad2 | NEONLoadStoreSingle_s,
   1776  NEON_LD2_d = NEONLoadStoreSingleStructLoad2 | NEONLoadStoreSingle_d,
   1777  NEON_LD2R  = NEONLoadStoreSingleStructLoad2 | NEONLoadStoreSingleAllLanes,
   1778  NEON_ST2_b = NEONLoadStoreSingleStructStore2 | NEONLoadStoreSingle_b,
   1779  NEON_ST2_h = NEONLoadStoreSingleStructStore2 | NEONLoadStoreSingle_h,
   1780  NEON_ST2_s = NEONLoadStoreSingleStructStore2 | NEONLoadStoreSingle_s,
   1781  NEON_ST2_d = NEONLoadStoreSingleStructStore2 | NEONLoadStoreSingle_d,
   1782
   1783  NEON_LD3_b = NEONLoadStoreSingleStructLoad3 | NEONLoadStoreSingle_b,
   1784  NEON_LD3_h = NEONLoadStoreSingleStructLoad3 | NEONLoadStoreSingle_h,
   1785  NEON_LD3_s = NEONLoadStoreSingleStructLoad3 | NEONLoadStoreSingle_s,
   1786  NEON_LD3_d = NEONLoadStoreSingleStructLoad3 | NEONLoadStoreSingle_d,
   1787  NEON_LD3R  = NEONLoadStoreSingleStructLoad3 | NEONLoadStoreSingleAllLanes,
   1788  NEON_ST3_b = NEONLoadStoreSingleStructStore3 | NEONLoadStoreSingle_b,
   1789  NEON_ST3_h = NEONLoadStoreSingleStructStore3 | NEONLoadStoreSingle_h,
   1790  NEON_ST3_s = NEONLoadStoreSingleStructStore3 | NEONLoadStoreSingle_s,
   1791  NEON_ST3_d = NEONLoadStoreSingleStructStore3 | NEONLoadStoreSingle_d,
   1792
   1793  NEON_LD4_b = NEONLoadStoreSingleStructLoad4 | NEONLoadStoreSingle_b,
   1794  NEON_LD4_h = NEONLoadStoreSingleStructLoad4 | NEONLoadStoreSingle_h,
   1795  NEON_LD4_s = NEONLoadStoreSingleStructLoad4 | NEONLoadStoreSingle_s,
   1796  NEON_LD4_d = NEONLoadStoreSingleStructLoad4 | NEONLoadStoreSingle_d,
   1797  NEON_LD4R  = NEONLoadStoreSingleStructLoad4 | NEONLoadStoreSingleAllLanes,
   1798  NEON_ST4_b = NEONLoadStoreSingleStructStore4 | NEONLoadStoreSingle_b,
   1799  NEON_ST4_h = NEONLoadStoreSingleStructStore4 | NEONLoadStoreSingle_h,
   1800  NEON_ST4_s = NEONLoadStoreSingleStructStore4 | NEONLoadStoreSingle_s,
   1801  NEON_ST4_d = NEONLoadStoreSingleStructStore4 | NEONLoadStoreSingle_d
   1802};
   1803
   1804// NEON load/store single structure with post-index addressing.
   1805enum NEONLoadStoreSingleStructPostIndexOp {
   1806  NEONLoadStoreSingleStructPostIndexFixed = 0x0D800000,
   1807  NEONLoadStoreSingleStructPostIndexFMask = 0xBF800000,
   1808  NEONLoadStoreSingleStructPostIndexMask  = 0xBFE0E000,
   1809  NEONLoadStoreSingleStructPostIndex = 0x00800000,
   1810  NEON_LD1_b_post = NEON_LD1_b | NEONLoadStoreSingleStructPostIndex,
   1811  NEON_LD1_h_post = NEON_LD1_h | NEONLoadStoreSingleStructPostIndex,
   1812  NEON_LD1_s_post = NEON_LD1_s | NEONLoadStoreSingleStructPostIndex,
   1813  NEON_LD1_d_post = NEON_LD1_d | NEONLoadStoreSingleStructPostIndex,
   1814  NEON_LD1R_post  = NEON_LD1R | NEONLoadStoreSingleStructPostIndex,
   1815  NEON_ST1_b_post = NEON_ST1_b | NEONLoadStoreSingleStructPostIndex,
   1816  NEON_ST1_h_post = NEON_ST1_h | NEONLoadStoreSingleStructPostIndex,
   1817  NEON_ST1_s_post = NEON_ST1_s | NEONLoadStoreSingleStructPostIndex,
   1818  NEON_ST1_d_post = NEON_ST1_d | NEONLoadStoreSingleStructPostIndex,
   1819
   1820  NEON_LD2_b_post = NEON_LD2_b | NEONLoadStoreSingleStructPostIndex,
   1821  NEON_LD2_h_post = NEON_LD2_h | NEONLoadStoreSingleStructPostIndex,
   1822  NEON_LD2_s_post = NEON_LD2_s | NEONLoadStoreSingleStructPostIndex,
   1823  NEON_LD2_d_post = NEON_LD2_d | NEONLoadStoreSingleStructPostIndex,
   1824  NEON_LD2R_post  = NEON_LD2R | NEONLoadStoreSingleStructPostIndex,
   1825  NEON_ST2_b_post = NEON_ST2_b | NEONLoadStoreSingleStructPostIndex,
   1826  NEON_ST2_h_post = NEON_ST2_h | NEONLoadStoreSingleStructPostIndex,
   1827  NEON_ST2_s_post = NEON_ST2_s | NEONLoadStoreSingleStructPostIndex,
   1828  NEON_ST2_d_post = NEON_ST2_d | NEONLoadStoreSingleStructPostIndex,
   1829
   1830  NEON_LD3_b_post = NEON_LD3_b | NEONLoadStoreSingleStructPostIndex,
   1831  NEON_LD3_h_post = NEON_LD3_h | NEONLoadStoreSingleStructPostIndex,
   1832  NEON_LD3_s_post = NEON_LD3_s | NEONLoadStoreSingleStructPostIndex,
   1833  NEON_LD3_d_post = NEON_LD3_d | NEONLoadStoreSingleStructPostIndex,
   1834  NEON_LD3R_post  = NEON_LD3R | NEONLoadStoreSingleStructPostIndex,
   1835  NEON_ST3_b_post = NEON_ST3_b | NEONLoadStoreSingleStructPostIndex,
   1836  NEON_ST3_h_post = NEON_ST3_h | NEONLoadStoreSingleStructPostIndex,
   1837  NEON_ST3_s_post = NEON_ST3_s | NEONLoadStoreSingleStructPostIndex,
   1838  NEON_ST3_d_post = NEON_ST3_d | NEONLoadStoreSingleStructPostIndex,
   1839
   1840  NEON_LD4_b_post = NEON_LD4_b | NEONLoadStoreSingleStructPostIndex,
   1841  NEON_LD4_h_post = NEON_LD4_h | NEONLoadStoreSingleStructPostIndex,
   1842  NEON_LD4_s_post = NEON_LD4_s | NEONLoadStoreSingleStructPostIndex,
   1843  NEON_LD4_d_post = NEON_LD4_d | NEONLoadStoreSingleStructPostIndex,
   1844  NEON_LD4R_post  = NEON_LD4R | NEONLoadStoreSingleStructPostIndex,
   1845  NEON_ST4_b_post = NEON_ST4_b | NEONLoadStoreSingleStructPostIndex,
   1846  NEON_ST4_h_post = NEON_ST4_h | NEONLoadStoreSingleStructPostIndex,
   1847  NEON_ST4_s_post = NEON_ST4_s | NEONLoadStoreSingleStructPostIndex,
   1848  NEON_ST4_d_post = NEON_ST4_d | NEONLoadStoreSingleStructPostIndex
   1849};
   1850
   1851// NEON modified immediate.
   1852enum NEONModifiedImmediateOp {
   1853  NEONModifiedImmediateFixed = 0x0F000400,
   1854  NEONModifiedImmediateFMask = 0x9FF80400,
   1855  NEONModifiedImmediateOpBit = 0x20000000,
   1856  NEONModifiedImmediate_MOVI = NEONModifiedImmediateFixed | 0x00000000,
   1857  NEONModifiedImmediate_MVNI = NEONModifiedImmediateFixed | 0x20000000,
   1858  NEONModifiedImmediate_ORR  = NEONModifiedImmediateFixed | 0x00001000,
   1859  NEONModifiedImmediate_BIC  = NEONModifiedImmediateFixed | 0x20001000
   1860};
   1861
   1862// NEON shift immediate.
   1863enum NEONShiftImmediateOp {
   1864  NEONShiftImmediateFixed = 0x0F000400,
   1865  NEONShiftImmediateFMask = 0x9F800400,
   1866  NEONShiftImmediateMask  = 0xBF80FC00,
   1867  NEONShiftImmediateUBit  = 0x20000000,
   1868  NEON_SHL      = NEONShiftImmediateFixed | 0x00005000,
   1869  NEON_SSHLL    = NEONShiftImmediateFixed | 0x0000A000,
   1870  NEON_USHLL    = NEONShiftImmediateFixed | 0x2000A000,
   1871  NEON_SLI      = NEONShiftImmediateFixed | 0x20005000,
   1872  NEON_SRI      = NEONShiftImmediateFixed | 0x20004000,
   1873  NEON_SHRN     = NEONShiftImmediateFixed | 0x00008000,
   1874  NEON_RSHRN    = NEONShiftImmediateFixed | 0x00008800,
   1875  NEON_UQSHRN   = NEONShiftImmediateFixed | 0x20009000,
   1876  NEON_UQRSHRN  = NEONShiftImmediateFixed | 0x20009800,
   1877  NEON_SQSHRN   = NEONShiftImmediateFixed | 0x00009000,
   1878  NEON_SQRSHRN  = NEONShiftImmediateFixed | 0x00009800,
   1879  NEON_SQSHRUN  = NEONShiftImmediateFixed | 0x20008000,
   1880  NEON_SQRSHRUN = NEONShiftImmediateFixed | 0x20008800,
   1881  NEON_SSHR     = NEONShiftImmediateFixed | 0x00000000,
   1882  NEON_SRSHR    = NEONShiftImmediateFixed | 0x00002000,
   1883  NEON_USHR     = NEONShiftImmediateFixed | 0x20000000,
   1884  NEON_URSHR    = NEONShiftImmediateFixed | 0x20002000,
   1885  NEON_SSRA     = NEONShiftImmediateFixed | 0x00001000,
   1886  NEON_SRSRA    = NEONShiftImmediateFixed | 0x00003000,
   1887  NEON_USRA     = NEONShiftImmediateFixed | 0x20001000,
   1888  NEON_URSRA    = NEONShiftImmediateFixed | 0x20003000,
   1889  NEON_SQSHLU   = NEONShiftImmediateFixed | 0x20006000,
   1890  NEON_SCVTF_imm = NEONShiftImmediateFixed | 0x0000E000,
   1891  NEON_UCVTF_imm = NEONShiftImmediateFixed | 0x2000E000,
   1892  NEON_FCVTZS_imm = NEONShiftImmediateFixed | 0x0000F800,
   1893  NEON_FCVTZU_imm = NEONShiftImmediateFixed | 0x2000F800,
   1894  NEON_SQSHL_imm = NEONShiftImmediateFixed | 0x00007000,
   1895  NEON_UQSHL_imm = NEONShiftImmediateFixed | 0x20007000
   1896};
   1897
   1898// NEON table.
   1899enum NEONTableOp {
   1900  NEONTableFixed = 0x0E000000,
   1901  NEONTableFMask = 0xBF208C00,
   1902  NEONTableExt   = 0x00001000,
   1903  NEONTableMask  = 0xBF20FC00,
   1904  NEON_TBL_1v    = NEONTableFixed | 0x00000000,
   1905  NEON_TBL_2v    = NEONTableFixed | 0x00002000,
   1906  NEON_TBL_3v    = NEONTableFixed | 0x00004000,
   1907  NEON_TBL_4v    = NEONTableFixed | 0x00006000,
   1908  NEON_TBX_1v    = NEON_TBL_1v | NEONTableExt,
   1909  NEON_TBX_2v    = NEON_TBL_2v | NEONTableExt,
   1910  NEON_TBX_3v    = NEON_TBL_3v | NEONTableExt,
   1911  NEON_TBX_4v    = NEON_TBL_4v | NEONTableExt
   1912};
   1913
   1914// NEON perm.
   1915enum NEONPermOp {
   1916  NEONPermFixed = 0x0E000800,
   1917  NEONPermFMask = 0xBF208C00,
   1918  NEONPermMask  = 0x3F20FC00,
   1919  NEON_UZP1 = NEONPermFixed | 0x00001000,
   1920  NEON_TRN1 = NEONPermFixed | 0x00002000,
   1921  NEON_ZIP1 = NEONPermFixed | 0x00003000,
   1922  NEON_UZP2 = NEONPermFixed | 0x00005000,
   1923  NEON_TRN2 = NEONPermFixed | 0x00006000,
   1924  NEON_ZIP2 = NEONPermFixed | 0x00007000
   1925};
   1926
   1927// NEON scalar instructions with two register operands.
   1928enum NEONScalar2RegMiscOp {
   1929  NEONScalar2RegMiscFixed = 0x5E200800,
   1930  NEONScalar2RegMiscFMask = 0xDF3E0C00,
   1931  NEONScalar2RegMiscMask = NEON_Q | NEONScalar | NEON2RegMiscMask,
   1932  NEON_CMGT_zero_scalar = NEON_Q | NEONScalar | NEON_CMGT_zero,
   1933  NEON_CMEQ_zero_scalar = NEON_Q | NEONScalar | NEON_CMEQ_zero,
   1934  NEON_CMLT_zero_scalar = NEON_Q | NEONScalar | NEON_CMLT_zero,
   1935  NEON_CMGE_zero_scalar = NEON_Q | NEONScalar | NEON_CMGE_zero,
   1936  NEON_CMLE_zero_scalar = NEON_Q | NEONScalar | NEON_CMLE_zero,
   1937  NEON_ABS_scalar       = NEON_Q | NEONScalar | NEON_ABS,
   1938  NEON_SQABS_scalar     = NEON_Q | NEONScalar | NEON_SQABS,
   1939  NEON_NEG_scalar       = NEON_Q | NEONScalar | NEON_NEG,
   1940  NEON_SQNEG_scalar     = NEON_Q | NEONScalar | NEON_SQNEG,
   1941  NEON_SQXTN_scalar     = NEON_Q | NEONScalar | NEON_SQXTN,
   1942  NEON_UQXTN_scalar     = NEON_Q | NEONScalar | NEON_UQXTN,
   1943  NEON_SQXTUN_scalar    = NEON_Q | NEONScalar | NEON_SQXTUN,
   1944  NEON_SUQADD_scalar    = NEON_Q | NEONScalar | NEON_SUQADD,
   1945  NEON_USQADD_scalar    = NEON_Q | NEONScalar | NEON_USQADD,
   1946
   1947  NEONScalar2RegMiscOpcode = NEON2RegMiscOpcode,
   1948  NEON_NEG_scalar_opcode = NEON_NEG_scalar & NEONScalar2RegMiscOpcode,
   1949
   1950  NEONScalar2RegMiscFPMask  = NEONScalar2RegMiscMask | 0x00800000,
   1951  NEON_FRSQRTE_scalar    = NEON_Q | NEONScalar | NEON_FRSQRTE,
   1952  NEON_FRECPE_scalar     = NEON_Q | NEONScalar | NEON_FRECPE,
   1953  NEON_SCVTF_scalar      = NEON_Q | NEONScalar | NEON_SCVTF,
   1954  NEON_UCVTF_scalar      = NEON_Q | NEONScalar | NEON_UCVTF,
   1955  NEON_FCMGT_zero_scalar = NEON_Q | NEONScalar | NEON_FCMGT_zero,
   1956  NEON_FCMEQ_zero_scalar = NEON_Q | NEONScalar | NEON_FCMEQ_zero,
   1957  NEON_FCMLT_zero_scalar = NEON_Q | NEONScalar | NEON_FCMLT_zero,
   1958  NEON_FCMGE_zero_scalar = NEON_Q | NEONScalar | NEON_FCMGE_zero,
   1959  NEON_FCMLE_zero_scalar = NEON_Q | NEONScalar | NEON_FCMLE_zero,
   1960  NEON_FRECPX_scalar     = NEONScalar2RegMiscFixed | 0x0081F000,
   1961  NEON_FCVTNS_scalar     = NEON_Q | NEONScalar | NEON_FCVTNS,
   1962  NEON_FCVTNU_scalar     = NEON_Q | NEONScalar | NEON_FCVTNU,
   1963  NEON_FCVTPS_scalar     = NEON_Q | NEONScalar | NEON_FCVTPS,
   1964  NEON_FCVTPU_scalar     = NEON_Q | NEONScalar | NEON_FCVTPU,
   1965  NEON_FCVTMS_scalar     = NEON_Q | NEONScalar | NEON_FCVTMS,
   1966  NEON_FCVTMU_scalar     = NEON_Q | NEONScalar | NEON_FCVTMU,
   1967  NEON_FCVTZS_scalar     = NEON_Q | NEONScalar | NEON_FCVTZS,
   1968  NEON_FCVTZU_scalar     = NEON_Q | NEONScalar | NEON_FCVTZU,
   1969  NEON_FCVTAS_scalar     = NEON_Q | NEONScalar | NEON_FCVTAS,
   1970  NEON_FCVTAU_scalar     = NEON_Q | NEONScalar | NEON_FCVTAU,
   1971  NEON_FCVTXN_scalar     = NEON_Q | NEONScalar | NEON_FCVTXN
   1972};
   1973
   1974// NEON scalar instructions with three same-type operands.
   1975enum NEONScalar3SameOp {
   1976  NEONScalar3SameFixed = 0x5E200400,
   1977  NEONScalar3SameFMask = 0xDF200400,
   1978  NEONScalar3SameMask  = 0xFF20FC00,
   1979  NEON_ADD_scalar    = NEON_Q | NEONScalar | NEON_ADD,
   1980  NEON_CMEQ_scalar   = NEON_Q | NEONScalar | NEON_CMEQ,
   1981  NEON_CMGE_scalar   = NEON_Q | NEONScalar | NEON_CMGE,
   1982  NEON_CMGT_scalar   = NEON_Q | NEONScalar | NEON_CMGT,
   1983  NEON_CMHI_scalar   = NEON_Q | NEONScalar | NEON_CMHI,
   1984  NEON_CMHS_scalar   = NEON_Q | NEONScalar | NEON_CMHS,
   1985  NEON_CMTST_scalar  = NEON_Q | NEONScalar | NEON_CMTST,
   1986  NEON_SUB_scalar    = NEON_Q | NEONScalar | NEON_SUB,
   1987  NEON_UQADD_scalar  = NEON_Q | NEONScalar | NEON_UQADD,
   1988  NEON_SQADD_scalar  = NEON_Q | NEONScalar | NEON_SQADD,
   1989  NEON_UQSUB_scalar  = NEON_Q | NEONScalar | NEON_UQSUB,
   1990  NEON_SQSUB_scalar  = NEON_Q | NEONScalar | NEON_SQSUB,
   1991  NEON_USHL_scalar   = NEON_Q | NEONScalar | NEON_USHL,
   1992  NEON_SSHL_scalar   = NEON_Q | NEONScalar | NEON_SSHL,
   1993  NEON_UQSHL_scalar  = NEON_Q | NEONScalar | NEON_UQSHL,
   1994  NEON_SQSHL_scalar  = NEON_Q | NEONScalar | NEON_SQSHL,
   1995  NEON_URSHL_scalar  = NEON_Q | NEONScalar | NEON_URSHL,
   1996  NEON_SRSHL_scalar  = NEON_Q | NEONScalar | NEON_SRSHL,
   1997  NEON_UQRSHL_scalar = NEON_Q | NEONScalar | NEON_UQRSHL,
   1998  NEON_SQRSHL_scalar = NEON_Q | NEONScalar | NEON_SQRSHL,
   1999  NEON_SQDMULH_scalar = NEON_Q | NEONScalar | NEON_SQDMULH,
   2000  NEON_SQRDMULH_scalar = NEON_Q | NEONScalar | NEON_SQRDMULH,
   2001
   2002  // NEON floating point scalar instructions with three same-type operands.
   2003  NEONScalar3SameFPFixed = NEONScalar3SameFixed | 0x0000C000,
   2004  NEONScalar3SameFPFMask = NEONScalar3SameFMask | 0x0000C000,
   2005  NEONScalar3SameFPMask  = NEONScalar3SameMask | 0x00800000,
   2006  NEON_FACGE_scalar   = NEON_Q | NEONScalar | NEON_FACGE,
   2007  NEON_FACGT_scalar   = NEON_Q | NEONScalar | NEON_FACGT,
   2008  NEON_FCMEQ_scalar   = NEON_Q | NEONScalar | NEON_FCMEQ,
   2009  NEON_FCMGE_scalar   = NEON_Q | NEONScalar | NEON_FCMGE,
   2010  NEON_FCMGT_scalar   = NEON_Q | NEONScalar | NEON_FCMGT,
   2011  NEON_FMULX_scalar   = NEON_Q | NEONScalar | NEON_FMULX,
   2012  NEON_FRECPS_scalar  = NEON_Q | NEONScalar | NEON_FRECPS,
   2013  NEON_FRSQRTS_scalar = NEON_Q | NEONScalar | NEON_FRSQRTS,
   2014  NEON_FABD_scalar    = NEON_Q | NEONScalar | NEON_FABD
   2015};
   2016
   2017// NEON scalar instructions with three different-type operands.
   2018enum NEONScalar3DiffOp {
   2019  NEONScalar3DiffFixed = 0x5E200000,
   2020  NEONScalar3DiffFMask = 0xDF200C00,
   2021  NEONScalar3DiffMask  = NEON_Q | NEONScalar | NEON3DifferentMask,
   2022  NEON_SQDMLAL_scalar  = NEON_Q | NEONScalar | NEON_SQDMLAL,
   2023  NEON_SQDMLSL_scalar  = NEON_Q | NEONScalar | NEON_SQDMLSL,
   2024  NEON_SQDMULL_scalar  = NEON_Q | NEONScalar | NEON_SQDMULL
   2025};
   2026
   2027// NEON scalar instructions with indexed element operand.
   2028enum NEONScalarByIndexedElementOp {
   2029  NEONScalarByIndexedElementFixed = 0x5F000000,
   2030  NEONScalarByIndexedElementFMask = 0xDF000400,
   2031  NEONScalarByIndexedElementMask  = 0xFF00F400,
   2032  NEON_SQDMLAL_byelement_scalar  = NEON_Q | NEONScalar | NEON_SQDMLAL_byelement,
   2033  NEON_SQDMLSL_byelement_scalar  = NEON_Q | NEONScalar | NEON_SQDMLSL_byelement,
   2034  NEON_SQDMULL_byelement_scalar  = NEON_Q | NEONScalar | NEON_SQDMULL_byelement,
   2035  NEON_SQDMULH_byelement_scalar  = NEON_Q | NEONScalar | NEON_SQDMULH_byelement,
   2036  NEON_SQRDMULH_byelement_scalar
   2037    = NEON_Q | NEONScalar | NEON_SQRDMULH_byelement,
   2038
   2039  // Floating point instructions.
   2040  NEONScalarByIndexedElementFPFixed
   2041    = NEONScalarByIndexedElementFixed | 0x00800000,
   2042  NEONScalarByIndexedElementFPMask
   2043    = NEONScalarByIndexedElementMask | 0x00800000,
   2044  NEON_FMLA_byelement_scalar  = NEON_Q | NEONScalar | NEON_FMLA_byelement,
   2045  NEON_FMLS_byelement_scalar  = NEON_Q | NEONScalar | NEON_FMLS_byelement,
   2046  NEON_FMUL_byelement_scalar  = NEON_Q | NEONScalar | NEON_FMUL_byelement,
   2047  NEON_FMULX_byelement_scalar = NEON_Q | NEONScalar | NEON_FMULX_byelement
   2048};
   2049
   2050// NEON scalar register copy.
   2051enum NEONScalarCopyOp {
   2052  NEONScalarCopyFixed = 0x5E000400,
   2053  NEONScalarCopyFMask = 0xDFE08400,
   2054  NEONScalarCopyMask  = 0xFFE0FC00,
   2055  NEON_DUP_ELEMENT_scalar = NEON_Q | NEONScalar | NEON_DUP_ELEMENT
   2056};
   2057
   2058// NEON scalar pairwise instructions.
   2059enum NEONScalarPairwiseOp {
   2060  NEONScalarPairwiseFixed = 0x5E300800,
   2061  NEONScalarPairwiseFMask = 0xDF3E0C00,
   2062  NEONScalarPairwiseMask  = 0xFFB1F800,
   2063  NEON_ADDP_scalar    = NEONScalarPairwiseFixed | 0x0081B000,
   2064  NEON_FMAXNMP_scalar = NEONScalarPairwiseFixed | 0x2000C000,
   2065  NEON_FMINNMP_scalar = NEONScalarPairwiseFixed | 0x2080C000,
   2066  NEON_FADDP_scalar   = NEONScalarPairwiseFixed | 0x2000D000,
   2067  NEON_FMAXP_scalar   = NEONScalarPairwiseFixed | 0x2000F000,
   2068  NEON_FMINP_scalar   = NEONScalarPairwiseFixed | 0x2080F000
   2069};
   2070
   2071// NEON scalar shift immediate.
   2072enum NEONScalarShiftImmediateOp {
   2073  NEONScalarShiftImmediateFixed = 0x5F000400,
   2074  NEONScalarShiftImmediateFMask = 0xDF800400,
   2075  NEONScalarShiftImmediateMask  = 0xFF80FC00,
   2076  NEON_SHL_scalar  = NEON_Q | NEONScalar | NEON_SHL,
   2077  NEON_SLI_scalar  = NEON_Q | NEONScalar | NEON_SLI,
   2078  NEON_SRI_scalar  = NEON_Q | NEONScalar | NEON_SRI,
   2079  NEON_SSHR_scalar = NEON_Q | NEONScalar | NEON_SSHR,
   2080  NEON_USHR_scalar = NEON_Q | NEONScalar | NEON_USHR,
   2081  NEON_SRSHR_scalar = NEON_Q | NEONScalar | NEON_SRSHR,
   2082  NEON_URSHR_scalar = NEON_Q | NEONScalar | NEON_URSHR,
   2083  NEON_SSRA_scalar = NEON_Q | NEONScalar | NEON_SSRA,
   2084  NEON_USRA_scalar = NEON_Q | NEONScalar | NEON_USRA,
   2085  NEON_SRSRA_scalar = NEON_Q | NEONScalar | NEON_SRSRA,
   2086  NEON_URSRA_scalar = NEON_Q | NEONScalar | NEON_URSRA,
   2087  NEON_UQSHRN_scalar = NEON_Q | NEONScalar | NEON_UQSHRN,
   2088  NEON_UQRSHRN_scalar = NEON_Q | NEONScalar | NEON_UQRSHRN,
   2089  NEON_SQSHRN_scalar = NEON_Q | NEONScalar | NEON_SQSHRN,
   2090  NEON_SQRSHRN_scalar = NEON_Q | NEONScalar | NEON_SQRSHRN,
   2091  NEON_SQSHRUN_scalar = NEON_Q | NEONScalar | NEON_SQSHRUN,
   2092  NEON_SQRSHRUN_scalar = NEON_Q | NEONScalar | NEON_SQRSHRUN,
   2093  NEON_SQSHLU_scalar = NEON_Q | NEONScalar | NEON_SQSHLU,
   2094  NEON_SQSHL_imm_scalar  = NEON_Q | NEONScalar | NEON_SQSHL_imm,
   2095  NEON_UQSHL_imm_scalar  = NEON_Q | NEONScalar | NEON_UQSHL_imm,
   2096  NEON_SCVTF_imm_scalar = NEON_Q | NEONScalar | NEON_SCVTF_imm,
   2097  NEON_UCVTF_imm_scalar = NEON_Q | NEONScalar | NEON_UCVTF_imm,
   2098  NEON_FCVTZS_imm_scalar = NEON_Q | NEONScalar | NEON_FCVTZS_imm,
   2099  NEON_FCVTZU_imm_scalar = NEON_Q | NEONScalar | NEON_FCVTZU_imm
   2100};
   2101
   2102// Unimplemented and unallocated instructions. These are defined to make fixed
   2103// bit assertion easier.
   2104enum UnimplementedOp {
   2105  UnimplementedFixed = 0x00000000,
   2106  UnimplementedFMask = 0x00000000
   2107};
   2108
   2109enum UnallocatedOp {
   2110  UnallocatedFixed = 0x00000000,
   2111  UnallocatedFMask = 0x00000000
   2112};
   2113
   2114}  // namespace vixl
   2115
   2116#endif  // VIXL_A64_CONSTANTS_A64_H_