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1 // Copyright 2015, VIXL authors
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_AARCH64_CONSTANTS_AARCH64_H_
28 #define VIXL_AARCH64_CONSTANTS_AARCH64_H_
29 
30 #include "../globals-vixl.h"
31 
32 namespace vixl {
33 namespace aarch64 {
34 
35 const unsigned kNumberOfRegisters = 32;
36 const unsigned kNumberOfVRegisters = 32;
37 const unsigned kNumberOfFPRegisters = kNumberOfVRegisters;
38 // Callee saved registers are x21-x30(lr).
39 const int kNumberOfCalleeSavedRegisters = 10;
40 const int kFirstCalleeSavedRegisterIndex = 21;
41 // Callee saved FP registers are d8-d15.
42 const int kNumberOfCalleeSavedFPRegisters = 8;
43 const int kFirstCalleeSavedFPRegisterIndex = 8;
44 
45 // clang-format off
46 #define AARCH64_REGISTER_CODE_LIST(R)                                          \
47   R(0)  R(1)  R(2)  R(3)  R(4)  R(5)  R(6)  R(7)                               \
48   R(8)  R(9)  R(10) R(11) R(12) R(13) R(14) R(15)                              \
49   R(16) R(17) R(18) R(19) R(20) R(21) R(22) R(23)                              \
50   R(24) R(25) R(26) R(27) R(28) R(29) R(30) R(31)
51 
52 #define INSTRUCTION_FIELDS_LIST(V_)                                          \
53 /* Register fields */                                                        \
54 V_(Rd, 4, 0, ExtractBits)                 /* Destination register.        */ \
55 V_(Rn, 9, 5, ExtractBits)                 /* First source register.       */ \
56 V_(Rm, 20, 16, ExtractBits)               /* Second source register.      */ \
57 V_(Ra, 14, 10, ExtractBits)               /* Third source register.       */ \
58 V_(Rt, 4, 0, ExtractBits)                 /* Load/store register.         */ \
59 V_(Rt2, 14, 10, ExtractBits)              /* Load/store second register.  */ \
60 V_(Rs, 20, 16, ExtractBits)               /* Exclusive access status.     */ \
61                                                                              \
62 /* Common bits */                                                            \
63 V_(SixtyFourBits, 31, 31, ExtractBits)                                       \
64 V_(FlagsUpdate, 29, 29, ExtractBits)                                         \
65                                                                              \
66 /* PC relative addressing */                                                 \
67 V_(ImmPCRelHi, 23, 5, ExtractSignedBits)                                     \
68 V_(ImmPCRelLo, 30, 29, ExtractBits)                                          \
69                                                                              \
70 /* Add/subtract/logical shift register */                                    \
71 V_(ShiftDP, 23, 22, ExtractBits)                                             \
72 V_(ImmDPShift, 15, 10, ExtractBits)                                          \
73                                                                              \
74 /* Add/subtract immediate */                                                 \
75 V_(ImmAddSub, 21, 10, ExtractBits)                                           \
76 V_(ShiftAddSub, 23, 22, ExtractBits)                                         \
77                                                                              \
78 /* Add/substract extend */                                                   \
79 V_(ImmExtendShift, 12, 10, ExtractBits)                                      \
80 V_(ExtendMode, 15, 13, ExtractBits)                                          \
81                                                                              \
82 /* Move wide */                                                              \
83 V_(ImmMoveWide, 20, 5, ExtractBits)                                          \
84 V_(ShiftMoveWide, 22, 21, ExtractBits)                                       \
85                                                                              \
86 /* Logical immediate, bitfield and extract */                                \
87 V_(BitN, 22, 22, ExtractBits)                                                \
88 V_(ImmRotate, 21, 16, ExtractBits)                                           \
89 V_(ImmSetBits, 15, 10, ExtractBits)                                          \
90 V_(ImmR, 21, 16, ExtractBits)                                                \
91 V_(ImmS, 15, 10, ExtractBits)                                                \
92                                                                              \
93 /* Test and branch immediate */                                              \
94 V_(ImmTestBranch, 18, 5, ExtractSignedBits)                                  \
95 V_(ImmTestBranchBit40, 23, 19, ExtractBits)                                  \
96 V_(ImmTestBranchBit5, 31, 31, ExtractBits)                                   \
97                                                                              \
98 /* Conditionals */                                                           \
99 V_(Condition, 15, 12, ExtractBits)                                           \
100 V_(ConditionBranch, 3, 0, ExtractBits)                                       \
101 V_(Nzcv, 3, 0, ExtractBits)                                                  \
102 V_(ImmCondCmp, 20, 16, ExtractBits)                                          \
103 V_(ImmCondBranch, 23, 5, ExtractSignedBits)                                  \
104                                                                              \
105 /* Floating point */                                                         \
106 V_(FPType, 23, 22, ExtractBits)                                              \
107 V_(ImmFP, 20, 13, ExtractBits)                                               \
108 V_(FPScale, 15, 10, ExtractBits)                                             \
109                                                                              \
110 /* Load Store */                                                             \
111 V_(ImmLS, 20, 12, ExtractSignedBits)                                         \
112 V_(ImmLSUnsigned, 21, 10, ExtractBits)                                       \
113 V_(ImmLSPair, 21, 15, ExtractSignedBits)                                     \
114 V_(ImmShiftLS, 12, 12, ExtractBits)                                          \
115 V_(LSOpc, 23, 22, ExtractBits)                                               \
116 V_(LSVector, 26, 26, ExtractBits)                                            \
117 V_(LSSize, 31, 30, ExtractBits)                                              \
118 V_(ImmPrefetchOperation, 4, 0, ExtractBits)                                  \
119 V_(PrefetchHint, 4, 3, ExtractBits)                                          \
120 V_(PrefetchTarget, 2, 1, ExtractBits)                                        \
121 V_(PrefetchStream, 0, 0, ExtractBits)                                        \
122                                                                              \
123 /* Other immediates */                                                       \
124 V_(ImmUncondBranch, 25, 0, ExtractSignedBits)                                \
125 V_(ImmCmpBranch, 23, 5, ExtractSignedBits)                                   \
126 V_(ImmLLiteral, 23, 5, ExtractSignedBits)                                    \
127 V_(ImmException, 20, 5, ExtractBits)                                         \
128 V_(ImmHint, 11, 5, ExtractBits)                                              \
129 V_(ImmBarrierDomain, 11, 10, ExtractBits)                                    \
130 V_(ImmBarrierType, 9, 8, ExtractBits)                                        \
131                                                                              \
132 /* System (MRS, MSR, SYS) */                                                 \
133 V_(ImmSystemRegister, 19, 5, ExtractBits)                                    \
134 V_(SysO0, 19, 19, ExtractBits)                                               \
135 V_(SysOp, 18, 5, ExtractBits)                                                \
136 V_(SysOp1, 18, 16, ExtractBits)                                              \
137 V_(SysOp2, 7, 5, ExtractBits)                                                \
138 V_(CRn, 15, 12, ExtractBits)                                                 \
139 V_(CRm, 11, 8, ExtractBits)                                                  \
140                                                                              \
141 /* Load-/store-exclusive */                                                  \
142 V_(LdStXLoad, 22, 22, ExtractBits)                                           \
143 V_(LdStXNotExclusive, 23, 23, ExtractBits)                                   \
144 V_(LdStXAcquireRelease, 15, 15, ExtractBits)                                 \
145 V_(LdStXSizeLog2, 31, 30, ExtractBits)                                       \
146 V_(LdStXPair, 21, 21, ExtractBits)                                           \
147                                                                              \
148 /* NEON generic fields */                                                    \
149 V_(NEONQ, 30, 30, ExtractBits)                                               \
150 V_(NEONSize, 23, 22, ExtractBits)                                            \
151 V_(NEONLSSize, 11, 10, ExtractBits)                                          \
152 V_(NEONS, 12, 12, ExtractBits)                                               \
153 V_(NEONL, 21, 21, ExtractBits)                                               \
154 V_(NEONM, 20, 20, ExtractBits)                                               \
155 V_(NEONH, 11, 11, ExtractBits)                                               \
156 V_(ImmNEONExt, 14, 11, ExtractBits)                                          \
157 V_(ImmNEON5, 20, 16, ExtractBits)                                            \
158 V_(ImmNEON4, 14, 11, ExtractBits)                                            \
159                                                                              \
160 /* NEON Modified Immediate fields */                                         \
161 V_(ImmNEONabc, 18, 16, ExtractBits)                                          \
162 V_(ImmNEONdefgh, 9, 5, ExtractBits)                                          \
163 V_(NEONModImmOp, 29, 29, ExtractBits)                                        \
164 V_(NEONCmode, 15, 12, ExtractBits)                                           \
165                                                                              \
166 /* NEON Shift Immediate fields */                                            \
167 V_(ImmNEONImmhImmb, 22, 16, ExtractBits)                                     \
168 V_(ImmNEONImmh, 22, 19, ExtractBits)                                         \
169 V_(ImmNEONImmb, 18, 16, ExtractBits)
170 // clang-format on
171 
172 #define SYSTEM_REGISTER_FIELDS_LIST(V_, M_) \
173   /* NZCV */                                \
174   V_(Flags, 31, 28, ExtractBits)            \
175   V_(N, 31, 31, ExtractBits)                \
176   V_(Z, 30, 30, ExtractBits)                \
177   V_(C, 29, 29, ExtractBits)                \
178   V_(V, 28, 28, ExtractBits)                \
179   M_(NZCV, Flags_mask)                      \
180   /* FPCR */                                \
181   V_(AHP, 26, 26, ExtractBits)              \
182   V_(DN, 25, 25, ExtractBits)               \
183   V_(FZ, 24, 24, ExtractBits)               \
184   V_(RMode, 23, 22, ExtractBits)            \
185   M_(FPCR, AHP_mask | DN_mask | FZ_mask | RMode_mask)
186 
187 // Fields offsets.
188 #define DECLARE_FIELDS_OFFSETS(Name, HighBit, LowBit, X) \
189   const int Name##_offset = LowBit;                      \
190   const int Name##_width = HighBit - LowBit + 1;         \
191   const uint32_t Name##_mask = ((1 << Name##_width) - 1) << LowBit;
192 #define NOTHING(A, B)
193 INSTRUCTION_FIELDS_LIST(DECLARE_FIELDS_OFFSETS)
194 SYSTEM_REGISTER_FIELDS_LIST(DECLARE_FIELDS_OFFSETS, NOTHING)
195 #undef NOTHING
196 #undef DECLARE_FIELDS_BITS
197 
198 // ImmPCRel is a compound field (not present in INSTRUCTION_FIELDS_LIST), formed
199 // from ImmPCRelLo and ImmPCRelHi.
200 const int ImmPCRel_mask = ImmPCRelLo_mask | ImmPCRelHi_mask;
201 
202 // Disable `clang-format` for the `enum`s below. We care about the manual
203 // formatting that `clang-format` would destroy.
204 // clang-format off
205 
206 // Condition codes.
207 enum Condition {
208   eq = 0,   // Z set            Equal.
209   ne = 1,   // Z clear          Not equal.
210   cs = 2,   // C set            Carry set.
211   cc = 3,   // C clear          Carry clear.
212   mi = 4,   // N set            Negative.
213   pl = 5,   // N clear          Positive or zero.
214   vs = 6,   // V set            Overflow.
215   vc = 7,   // V clear          No overflow.
216   hi = 8,   // C set, Z clear   Unsigned higher.
217   ls = 9,   // C clear or Z set Unsigned lower or same.
218   ge = 10,  // N == V           Greater or equal.
219   lt = 11,  // N != V           Less than.
220   gt = 12,  // Z clear, N == V  Greater than.
221   le = 13,  // Z set or N != V  Less then or equal
222   al = 14,  //                  Always.
223   nv = 15,  // Behaves as always/al.
224 
225   // Aliases.
226   hs = cs,  // C set            Unsigned higher or same.
227   lo = cc   // C clear          Unsigned lower.
228 };
229 
InvertCondition(Condition cond)230 inline Condition InvertCondition(Condition cond) {
231   // Conditions al and nv behave identically, as "always true". They can't be
232   // inverted, because there is no "always false" condition.
233   VIXL_ASSERT((cond != al) && (cond != nv));
234   return static_cast<Condition>(cond ^ 1);
235 }
236 
237 enum FPTrapFlags {
238   EnableTrap   = 1,
239   DisableTrap = 0
240 };
241 
242 enum FlagsUpdate {
243   SetFlags   = 1,
244   LeaveFlags = 0
245 };
246 
247 enum StatusFlags {
248   NoFlag    = 0,
249 
250   // Derive the flag combinations from the system register bit descriptions.
251   NFlag     = N_mask,
252   ZFlag     = Z_mask,
253   CFlag     = C_mask,
254   VFlag     = V_mask,
255   NZFlag    = NFlag | ZFlag,
256   NCFlag    = NFlag | CFlag,
257   NVFlag    = NFlag | VFlag,
258   ZCFlag    = ZFlag | CFlag,
259   ZVFlag    = ZFlag | VFlag,
260   CVFlag    = CFlag | VFlag,
261   NZCFlag   = NFlag | ZFlag | CFlag,
262   NZVFlag   = NFlag | ZFlag | VFlag,
263   NCVFlag   = NFlag | CFlag | VFlag,
264   ZCVFlag   = ZFlag | CFlag | VFlag,
265   NZCVFlag  = NFlag | ZFlag | CFlag | VFlag,
266 
267   // Floating-point comparison results.
268   FPEqualFlag       = ZCFlag,
269   FPLessThanFlag    = NFlag,
270   FPGreaterThanFlag = CFlag,
271   FPUnorderedFlag   = CVFlag
272 };
273 
274 enum Shift {
275   NO_SHIFT = -1,
276   LSL = 0x0,
277   LSR = 0x1,
278   ASR = 0x2,
279   ROR = 0x3,
280   MSL = 0x4
281 };
282 
283 enum Extend {
284   NO_EXTEND = -1,
285   UXTB      = 0,
286   UXTH      = 1,
287   UXTW      = 2,
288   UXTX      = 3,
289   SXTB      = 4,
290   SXTH      = 5,
291   SXTW      = 6,
292   SXTX      = 7
293 };
294 
295 enum SystemHint {
296   NOP   = 0,
297   YIELD = 1,
298   WFE   = 2,
299   WFI   = 3,
300   SEV   = 4,
301   SEVL  = 5
302 };
303 
304 enum BarrierDomain {
305   OuterShareable = 0,
306   NonShareable   = 1,
307   InnerShareable = 2,
308   FullSystem     = 3
309 };
310 
311 enum BarrierType {
312   BarrierOther  = 0,
313   BarrierReads  = 1,
314   BarrierWrites = 2,
315   BarrierAll    = 3
316 };
317 
318 enum PrefetchOperation {
319   PLDL1KEEP = 0x00,
320   PLDL1STRM = 0x01,
321   PLDL2KEEP = 0x02,
322   PLDL2STRM = 0x03,
323   PLDL3KEEP = 0x04,
324   PLDL3STRM = 0x05,
325 
326   PLIL1KEEP = 0x08,
327   PLIL1STRM = 0x09,
328   PLIL2KEEP = 0x0a,
329   PLIL2STRM = 0x0b,
330   PLIL3KEEP = 0x0c,
331   PLIL3STRM = 0x0d,
332 
333   PSTL1KEEP = 0x10,
334   PSTL1STRM = 0x11,
335   PSTL2KEEP = 0x12,
336   PSTL2STRM = 0x13,
337   PSTL3KEEP = 0x14,
338   PSTL3STRM = 0x15
339 };
340 
341 // System/special register names.
342 // This information is not encoded as one field but as the concatenation of
343 // multiple fields (Op0<0>, Op1, Crn, Crm, Op2).
344 enum SystemRegister {
345   NZCV = ((0x1 << SysO0_offset) |
346           (0x3 << SysOp1_offset) |
347           (0x4 << CRn_offset) |
348           (0x2 << CRm_offset) |
349           (0x0 << SysOp2_offset)) >> ImmSystemRegister_offset,
350   FPCR = ((0x1 << SysO0_offset) |
351           (0x3 << SysOp1_offset) |
352           (0x4 << CRn_offset) |
353           (0x4 << CRm_offset) |
354           (0x0 << SysOp2_offset)) >> ImmSystemRegister_offset
355 };
356 
357 enum InstructionCacheOp {
358   IVAU = ((0x3 << SysOp1_offset) |
359           (0x7 << CRn_offset) |
360           (0x5 << CRm_offset) |
361           (0x1 << SysOp2_offset)) >> SysOp_offset
362 };
363 
364 enum DataCacheOp {
365   CVAC  = ((0x3 << SysOp1_offset) |
366            (0x7 << CRn_offset) |
367            (0xa << CRm_offset) |
368            (0x1 << SysOp2_offset)) >> SysOp_offset,
369   CVAU  = ((0x3 << SysOp1_offset) |
370            (0x7 << CRn_offset) |
371            (0xb << CRm_offset) |
372            (0x1 << SysOp2_offset)) >> SysOp_offset,
373   CIVAC = ((0x3 << SysOp1_offset) |
374            (0x7 << CRn_offset) |
375            (0xe << CRm_offset) |
376            (0x1 << SysOp2_offset)) >> SysOp_offset,
377   ZVA   = ((0x3 << SysOp1_offset) |
378            (0x7 << CRn_offset) |
379            (0x4 << CRm_offset) |
380            (0x1 << SysOp2_offset)) >> SysOp_offset
381 };
382 
383 // Instruction enumerations.
384 //
385 // These are the masks that define a class of instructions, and the list of
386 // instructions within each class. Each enumeration has a Fixed, FMask and
387 // Mask value.
388 //
389 // Fixed: The fixed bits in this instruction class.
390 // FMask: The mask used to extract the fixed bits in the class.
391 // Mask:  The mask used to identify the instructions within a class.
392 //
393 // The enumerations can be used like this:
394 //
395 // VIXL_ASSERT(instr->Mask(PCRelAddressingFMask) == PCRelAddressingFixed);
396 // switch(instr->Mask(PCRelAddressingMask)) {
397 //   case ADR:  Format("adr 'Xd, 'AddrPCRelByte"); break;
398 //   case ADRP: Format("adrp 'Xd, 'AddrPCRelPage"); break;
399 //   default:   printf("Unknown instruction\n");
400 // }
401 
402 
403 // Generic fields.
404 enum GenericInstrField {
405   SixtyFourBits        = 0x80000000,
406   ThirtyTwoBits        = 0x00000000,
407   FP32                 = 0x00000000,
408   FP64                 = 0x00400000
409 };
410 
411 enum NEONFormatField {
412   NEONFormatFieldMask   = 0x40C00000,
413   NEON_Q                = 0x40000000,
414   NEON_8B               = 0x00000000,
415   NEON_16B              = NEON_8B | NEON_Q,
416   NEON_4H               = 0x00400000,
417   NEON_8H               = NEON_4H | NEON_Q,
418   NEON_2S               = 0x00800000,
419   NEON_4S               = NEON_2S | NEON_Q,
420   NEON_1D               = 0x00C00000,
421   NEON_2D               = 0x00C00000 | NEON_Q
422 };
423 
424 enum NEONFPFormatField {
425   NEONFPFormatFieldMask = 0x40400000,
426   NEON_FP_2S            = FP32,
427   NEON_FP_4S            = FP32 | NEON_Q,
428   NEON_FP_2D            = FP64 | NEON_Q
429 };
430 
431 enum NEONLSFormatField {
432   NEONLSFormatFieldMask = 0x40000C00,
433   LS_NEON_8B            = 0x00000000,
434   LS_NEON_16B           = LS_NEON_8B | NEON_Q,
435   LS_NEON_4H            = 0x00000400,
436   LS_NEON_8H            = LS_NEON_4H | NEON_Q,
437   LS_NEON_2S            = 0x00000800,
438   LS_NEON_4S            = LS_NEON_2S | NEON_Q,
439   LS_NEON_1D            = 0x00000C00,
440   LS_NEON_2D            = LS_NEON_1D | NEON_Q
441 };
442 
443 enum NEONScalarFormatField {
444   NEONScalarFormatFieldMask = 0x00C00000,
445   NEONScalar                = 0x10000000,
446   NEON_B                    = 0x00000000,
447   NEON_H                    = 0x00400000,
448   NEON_S                    = 0x00800000,
449   NEON_D                    = 0x00C00000
450 };
451 
452 // PC relative addressing.
453 enum PCRelAddressingOp {
454   PCRelAddressingFixed = 0x10000000,
455   PCRelAddressingFMask = 0x1F000000,
456   PCRelAddressingMask  = 0x9F000000,
457   ADR                  = PCRelAddressingFixed | 0x00000000,
458   ADRP                 = PCRelAddressingFixed | 0x80000000
459 };
460 
461 // Add/sub (immediate, shifted and extended.)
462 const int kSFOffset = 31;
463 enum AddSubOp {
464   AddSubOpMask      = 0x60000000,
465   AddSubSetFlagsBit = 0x20000000,
466   ADD               = 0x00000000,
467   ADDS              = ADD | AddSubSetFlagsBit,
468   SUB               = 0x40000000,
469   SUBS              = SUB | AddSubSetFlagsBit
470 };
471 
472 #define ADD_SUB_OP_LIST(V)  \
473   V(ADD),                   \
474   V(ADDS),                  \
475   V(SUB),                   \
476   V(SUBS)
477 
478 enum AddSubImmediateOp {
479   AddSubImmediateFixed = 0x11000000,
480   AddSubImmediateFMask = 0x1F000000,
481   AddSubImmediateMask  = 0xFF000000,
482   #define ADD_SUB_IMMEDIATE(A)           \
483   A##_w_imm = AddSubImmediateFixed | A,  \
484   A##_x_imm = AddSubImmediateFixed | A | SixtyFourBits
485   ADD_SUB_OP_LIST(ADD_SUB_IMMEDIATE)
486   #undef ADD_SUB_IMMEDIATE
487 };
488 
489 enum AddSubShiftedOp {
490   AddSubShiftedFixed   = 0x0B000000,
491   AddSubShiftedFMask   = 0x1F200000,
492   AddSubShiftedMask    = 0xFF200000,
493   #define ADD_SUB_SHIFTED(A)             \
494   A##_w_shift = AddSubShiftedFixed | A,  \
495   A##_x_shift = AddSubShiftedFixed | A | SixtyFourBits
496   ADD_SUB_OP_LIST(ADD_SUB_SHIFTED)
497   #undef ADD_SUB_SHIFTED
498 };
499 
500 enum AddSubExtendedOp {
501   AddSubExtendedFixed  = 0x0B200000,
502   AddSubExtendedFMask  = 0x1F200000,
503   AddSubExtendedMask   = 0xFFE00000,
504   #define ADD_SUB_EXTENDED(A)           \
505   A##_w_ext = AddSubExtendedFixed | A,  \
506   A##_x_ext = AddSubExtendedFixed | A | SixtyFourBits
507   ADD_SUB_OP_LIST(ADD_SUB_EXTENDED)
508   #undef ADD_SUB_EXTENDED
509 };
510 
511 // Add/sub with carry.
512 enum AddSubWithCarryOp {
513   AddSubWithCarryFixed = 0x1A000000,
514   AddSubWithCarryFMask = 0x1FE00000,
515   AddSubWithCarryMask  = 0xFFE0FC00,
516   ADC_w                = AddSubWithCarryFixed | ADD,
517   ADC_x                = AddSubWithCarryFixed | ADD | SixtyFourBits,
518   ADC                  = ADC_w,
519   ADCS_w               = AddSubWithCarryFixed | ADDS,
520   ADCS_x               = AddSubWithCarryFixed | ADDS | SixtyFourBits,
521   SBC_w                = AddSubWithCarryFixed | SUB,
522   SBC_x                = AddSubWithCarryFixed | SUB | SixtyFourBits,
523   SBC                  = SBC_w,
524   SBCS_w               = AddSubWithCarryFixed | SUBS,
525   SBCS_x               = AddSubWithCarryFixed | SUBS | SixtyFourBits
526 };
527 
528 
529 // Logical (immediate and shifted register).
530 enum LogicalOp {
531   LogicalOpMask = 0x60200000,
532   NOT   = 0x00200000,
533   AND   = 0x00000000,
534   BIC   = AND | NOT,
535   ORR   = 0x20000000,
536   ORN   = ORR | NOT,
537   EOR   = 0x40000000,
538   EON   = EOR | NOT,
539   ANDS  = 0x60000000,
540   BICS  = ANDS | NOT
541 };
542 
543 // Logical immediate.
544 enum LogicalImmediateOp {
545   LogicalImmediateFixed = 0x12000000,
546   LogicalImmediateFMask = 0x1F800000,
547   LogicalImmediateMask  = 0xFF800000,
548   AND_w_imm   = LogicalImmediateFixed | AND,
549   AND_x_imm   = LogicalImmediateFixed | AND | SixtyFourBits,
550   ORR_w_imm   = LogicalImmediateFixed | ORR,
551   ORR_x_imm   = LogicalImmediateFixed | ORR | SixtyFourBits,
552   EOR_w_imm   = LogicalImmediateFixed | EOR,
553   EOR_x_imm   = LogicalImmediateFixed | EOR | SixtyFourBits,
554   ANDS_w_imm  = LogicalImmediateFixed | ANDS,
555   ANDS_x_imm  = LogicalImmediateFixed | ANDS | SixtyFourBits
556 };
557 
558 // Logical shifted register.
559 enum LogicalShiftedOp {
560   LogicalShiftedFixed = 0x0A000000,
561   LogicalShiftedFMask = 0x1F000000,
562   LogicalShiftedMask  = 0xFF200000,
563   AND_w               = LogicalShiftedFixed | AND,
564   AND_x               = LogicalShiftedFixed | AND | SixtyFourBits,
565   AND_shift           = AND_w,
566   BIC_w               = LogicalShiftedFixed | BIC,
567   BIC_x               = LogicalShiftedFixed | BIC | SixtyFourBits,
568   BIC_shift           = BIC_w,
569   ORR_w               = LogicalShiftedFixed | ORR,
570   ORR_x               = LogicalShiftedFixed | ORR | SixtyFourBits,
571   ORR_shift           = ORR_w,
572   ORN_w               = LogicalShiftedFixed | ORN,
573   ORN_x               = LogicalShiftedFixed | ORN | SixtyFourBits,
574   ORN_shift           = ORN_w,
575   EOR_w               = LogicalShiftedFixed | EOR,
576   EOR_x               = LogicalShiftedFixed | EOR | SixtyFourBits,
577   EOR_shift           = EOR_w,
578   EON_w               = LogicalShiftedFixed | EON,
579   EON_x               = LogicalShiftedFixed | EON | SixtyFourBits,
580   EON_shift           = EON_w,
581   ANDS_w              = LogicalShiftedFixed | ANDS,
582   ANDS_x              = LogicalShiftedFixed | ANDS | SixtyFourBits,
583   ANDS_shift          = ANDS_w,
584   BICS_w              = LogicalShiftedFixed | BICS,
585   BICS_x              = LogicalShiftedFixed | BICS | SixtyFourBits,
586   BICS_shift          = BICS_w
587 };
588 
589 // Move wide immediate.
590 enum MoveWideImmediateOp {
591   MoveWideImmediateFixed = 0x12800000,
592   MoveWideImmediateFMask = 0x1F800000,
593   MoveWideImmediateMask  = 0xFF800000,
594   MOVN                   = 0x00000000,
595   MOVZ                   = 0x40000000,
596   MOVK                   = 0x60000000,
597   MOVN_w                 = MoveWideImmediateFixed | MOVN,
598   MOVN_x                 = MoveWideImmediateFixed | MOVN | SixtyFourBits,
599   MOVZ_w                 = MoveWideImmediateFixed | MOVZ,
600   MOVZ_x                 = MoveWideImmediateFixed | MOVZ | SixtyFourBits,
601   MOVK_w                 = MoveWideImmediateFixed | MOVK,
602   MOVK_x                 = MoveWideImmediateFixed | MOVK | SixtyFourBits
603 };
604 
605 // Bitfield.
606 const int kBitfieldNOffset = 22;
607 enum BitfieldOp {
608   BitfieldFixed = 0x13000000,
609   BitfieldFMask = 0x1F800000,
610   BitfieldMask  = 0xFF800000,
611   SBFM_w        = BitfieldFixed | 0x00000000,
612   SBFM_x        = BitfieldFixed | 0x80000000,
613   SBFM          = SBFM_w,
614   BFM_w         = BitfieldFixed | 0x20000000,
615   BFM_x         = BitfieldFixed | 0xA0000000,
616   BFM           = BFM_w,
617   UBFM_w        = BitfieldFixed | 0x40000000,
618   UBFM_x        = BitfieldFixed | 0xC0000000,
619   UBFM          = UBFM_w
620   // Bitfield N field.
621 };
622 
623 // Extract.
624 enum ExtractOp {
625   ExtractFixed = 0x13800000,
626   ExtractFMask = 0x1F800000,
627   ExtractMask  = 0xFFA00000,
628   EXTR_w       = ExtractFixed | 0x00000000,
629   EXTR_x       = ExtractFixed | 0x80000000,
630   EXTR         = EXTR_w
631 };
632 
633 // Unconditional branch.
634 enum UnconditionalBranchOp {
635   UnconditionalBranchFixed = 0x14000000,
636   UnconditionalBranchFMask = 0x7C000000,
637   UnconditionalBranchMask  = 0xFC000000,
638   B                        = UnconditionalBranchFixed | 0x00000000,
639   BL                       = UnconditionalBranchFixed | 0x80000000
640 };
641 
642 // Unconditional branch to register.
643 enum UnconditionalBranchToRegisterOp {
644   UnconditionalBranchToRegisterFixed = 0xD6000000,
645   UnconditionalBranchToRegisterFMask = 0xFE000000,
646   UnconditionalBranchToRegisterMask  = 0xFFFFFC1F,
647   BR      = UnconditionalBranchToRegisterFixed | 0x001F0000,
648   BLR     = UnconditionalBranchToRegisterFixed | 0x003F0000,
649   RET     = UnconditionalBranchToRegisterFixed | 0x005F0000
650 };
651 
652 // Compare and branch.
653 enum CompareBranchOp {
654   CompareBranchFixed = 0x34000000,
655   CompareBranchFMask = 0x7E000000,
656   CompareBranchMask  = 0xFF000000,
657   CBZ_w              = CompareBranchFixed | 0x00000000,
658   CBZ_x              = CompareBranchFixed | 0x80000000,
659   CBZ                = CBZ_w,
660   CBNZ_w             = CompareBranchFixed | 0x01000000,
661   CBNZ_x             = CompareBranchFixed | 0x81000000,
662   CBNZ               = CBNZ_w
663 };
664 
665 // Test and branch.
666 enum TestBranchOp {
667   TestBranchFixed = 0x36000000,
668   TestBranchFMask = 0x7E000000,
669   TestBranchMask  = 0x7F000000,
670   TBZ             = TestBranchFixed | 0x00000000,
671   TBNZ            = TestBranchFixed | 0x01000000
672 };
673 
674 // Conditional branch.
675 enum ConditionalBranchOp {
676   ConditionalBranchFixed = 0x54000000,
677   ConditionalBranchFMask = 0xFE000000,
678   ConditionalBranchMask  = 0xFF000010,
679   B_cond                 = ConditionalBranchFixed | 0x00000000
680 };
681 
682 // System.
683 // System instruction encoding is complicated because some instructions use op
684 // and CR fields to encode parameters. To handle this cleanly, the system
685 // instructions are split into more than one enum.
686 
687 enum SystemOp {
688   SystemFixed = 0xD5000000,
689   SystemFMask = 0xFFC00000
690 };
691 
692 enum SystemSysRegOp {
693   SystemSysRegFixed = 0xD5100000,
694   SystemSysRegFMask = 0xFFD00000,
695   SystemSysRegMask  = 0xFFF00000,
696   MRS               = SystemSysRegFixed | 0x00200000,
697   MSR               = SystemSysRegFixed | 0x00000000
698 };
699 
700 enum SystemHintOp {
701   SystemHintFixed = 0xD503201F,
702   SystemHintFMask = 0xFFFFF01F,
703   SystemHintMask  = 0xFFFFF01F,
704   HINT            = SystemHintFixed | 0x00000000
705 };
706 
707 enum SystemSysOp {
708   SystemSysFixed  = 0xD5080000,
709   SystemSysFMask  = 0xFFF80000,
710   SystemSysMask   = 0xFFF80000,
711   SYS             = SystemSysFixed | 0x00000000
712 };
713 
714 // Exception.
715 enum ExceptionOp {
716   ExceptionFixed = 0xD4000000,
717   ExceptionFMask = 0xFF000000,
718   ExceptionMask  = 0xFFE0001F,
719   HLT            = ExceptionFixed | 0x00400000,
720   BRK            = ExceptionFixed | 0x00200000,
721   SVC            = ExceptionFixed | 0x00000001,
722   HVC            = ExceptionFixed | 0x00000002,
723   SMC            = ExceptionFixed | 0x00000003,
724   DCPS1          = ExceptionFixed | 0x00A00001,
725   DCPS2          = ExceptionFixed | 0x00A00002,
726   DCPS3          = ExceptionFixed | 0x00A00003
727 };
728 
729 enum MemBarrierOp {
730   MemBarrierFixed = 0xD503309F,
731   MemBarrierFMask = 0xFFFFF09F,
732   MemBarrierMask  = 0xFFFFF0FF,
733   DSB             = MemBarrierFixed | 0x00000000,
734   DMB             = MemBarrierFixed | 0x00000020,
735   ISB             = MemBarrierFixed | 0x00000040
736 };
737 
738 enum SystemExclusiveMonitorOp {
739   SystemExclusiveMonitorFixed = 0xD503305F,
740   SystemExclusiveMonitorFMask = 0xFFFFF0FF,
741   SystemExclusiveMonitorMask  = 0xFFFFF0FF,
742   CLREX                       = SystemExclusiveMonitorFixed
743 };
744 
745 // Any load or store.
746 enum LoadStoreAnyOp {
747   LoadStoreAnyFMask = 0x0a000000,
748   LoadStoreAnyFixed = 0x08000000
749 };
750 
751 // Any load pair or store pair.
752 enum LoadStorePairAnyOp {
753   LoadStorePairAnyFMask = 0x3a000000,
754   LoadStorePairAnyFixed = 0x28000000
755 };
756 
757 #define LOAD_STORE_PAIR_OP_LIST(V)  \
758   V(STP, w,   0x00000000),          \
759   V(LDP, w,   0x00400000),          \
760   V(LDPSW, x, 0x40400000),          \
761   V(STP, x,   0x80000000),          \
762   V(LDP, x,   0x80400000),          \
763   V(STP, s,   0x04000000),          \
764   V(LDP, s,   0x04400000),          \
765   V(STP, d,   0x44000000),          \
766   V(LDP, d,   0x44400000),          \
767   V(STP, q,   0x84000000),          \
768   V(LDP, q,   0x84400000)
769 
770 // Load/store pair (post, pre and offset.)
771 enum LoadStorePairOp {
772   LoadStorePairMask = 0xC4400000,
773   LoadStorePairLBit = 1 << 22,
774   #define LOAD_STORE_PAIR(A, B, C) \
775   A##_##B = C
776   LOAD_STORE_PAIR_OP_LIST(LOAD_STORE_PAIR)
777   #undef LOAD_STORE_PAIR
778 };
779 
780 enum LoadStorePairPostIndexOp {
781   LoadStorePairPostIndexFixed = 0x28800000,
782   LoadStorePairPostIndexFMask = 0x3B800000,
783   LoadStorePairPostIndexMask  = 0xFFC00000,
784   #define LOAD_STORE_PAIR_POST_INDEX(A, B, C)  \
785   A##_##B##_post = LoadStorePairPostIndexFixed | A##_##B
786   LOAD_STORE_PAIR_OP_LIST(LOAD_STORE_PAIR_POST_INDEX)
787   #undef LOAD_STORE_PAIR_POST_INDEX
788 };
789 
790 enum LoadStorePairPreIndexOp {
791   LoadStorePairPreIndexFixed = 0x29800000,
792   LoadStorePairPreIndexFMask = 0x3B800000,
793   LoadStorePairPreIndexMask  = 0xFFC00000,
794   #define LOAD_STORE_PAIR_PRE_INDEX(A, B, C)  \
795   A##_##B##_pre = LoadStorePairPreIndexFixed | A##_##B
796   LOAD_STORE_PAIR_OP_LIST(LOAD_STORE_PAIR_PRE_INDEX)
797   #undef LOAD_STORE_PAIR_PRE_INDEX
798 };
799 
800 enum LoadStorePairOffsetOp {
801   LoadStorePairOffsetFixed = 0x29000000,
802   LoadStorePairOffsetFMask = 0x3B800000,
803   LoadStorePairOffsetMask  = 0xFFC00000,
804   #define LOAD_STORE_PAIR_OFFSET(A, B, C)  \
805   A##_##B##_off = LoadStorePairOffsetFixed | A##_##B
806   LOAD_STORE_PAIR_OP_LIST(LOAD_STORE_PAIR_OFFSET)
807   #undef LOAD_STORE_PAIR_OFFSET
808 };
809 
810 enum LoadStorePairNonTemporalOp {
811   LoadStorePairNonTemporalFixed = 0x28000000,
812   LoadStorePairNonTemporalFMask = 0x3B800000,
813   LoadStorePairNonTemporalMask  = 0xFFC00000,
814   LoadStorePairNonTemporalLBit = 1 << 22,
815   STNP_w = LoadStorePairNonTemporalFixed | STP_w,
816   LDNP_w = LoadStorePairNonTemporalFixed | LDP_w,
817   STNP_x = LoadStorePairNonTemporalFixed | STP_x,
818   LDNP_x = LoadStorePairNonTemporalFixed | LDP_x,
819   STNP_s = LoadStorePairNonTemporalFixed | STP_s,
820   LDNP_s = LoadStorePairNonTemporalFixed | LDP_s,
821   STNP_d = LoadStorePairNonTemporalFixed | STP_d,
822   LDNP_d = LoadStorePairNonTemporalFixed | LDP_d,
823   STNP_q = LoadStorePairNonTemporalFixed | STP_q,
824   LDNP_q = LoadStorePairNonTemporalFixed | LDP_q
825 };
826 
827 // Load literal.
828 enum LoadLiteralOp {
829   LoadLiteralFixed = 0x18000000,
830   LoadLiteralFMask = 0x3B000000,
831   LoadLiteralMask  = 0xFF000000,
832   LDR_w_lit        = LoadLiteralFixed | 0x00000000,
833   LDR_x_lit        = LoadLiteralFixed | 0x40000000,
834   LDRSW_x_lit      = LoadLiteralFixed | 0x80000000,
835   PRFM_lit         = LoadLiteralFixed | 0xC0000000,
836   LDR_s_lit        = LoadLiteralFixed | 0x04000000,
837   LDR_d_lit        = LoadLiteralFixed | 0x44000000,
838   LDR_q_lit        = LoadLiteralFixed | 0x84000000
839 };
840 
841 #define LOAD_STORE_OP_LIST(V)     \
842   V(ST, RB, w,  0x00000000),  \
843   V(ST, RH, w,  0x40000000),  \
844   V(ST, R, w,   0x80000000),  \
845   V(ST, R, x,   0xC0000000),  \
846   V(LD, RB, w,  0x00400000),  \
847   V(LD, RH, w,  0x40400000),  \
848   V(LD, R, w,   0x80400000),  \
849   V(LD, R, x,   0xC0400000),  \
850   V(LD, RSB, x, 0x00800000),  \
851   V(LD, RSH, x, 0x40800000),  \
852   V(LD, RSW, x, 0x80800000),  \
853   V(LD, RSB, w, 0x00C00000),  \
854   V(LD, RSH, w, 0x40C00000),  \
855   V(ST, R, b,   0x04000000),  \
856   V(ST, R, h,   0x44000000),  \
857   V(ST, R, s,   0x84000000),  \
858   V(ST, R, d,   0xC4000000),  \
859   V(ST, R, q,   0x04800000),  \
860   V(LD, R, b,   0x04400000),  \
861   V(LD, R, h,   0x44400000),  \
862   V(LD, R, s,   0x84400000),  \
863   V(LD, R, d,   0xC4400000),  \
864   V(LD, R, q,   0x04C00000)
865 
866 // Load/store (post, pre, offset and unsigned.)
867 enum LoadStoreOp {
868   LoadStoreMask = 0xC4C00000,
869   LoadStoreVMask = 0x04000000,
870   #define LOAD_STORE(A, B, C, D)  \
871   A##B##_##C = D
872   LOAD_STORE_OP_LIST(LOAD_STORE),
873   #undef LOAD_STORE
874   PRFM = 0xC0800000
875 };
876 
877 // Load/store unscaled offset.
878 enum LoadStoreUnscaledOffsetOp {
879   LoadStoreUnscaledOffsetFixed = 0x38000000,
880   LoadStoreUnscaledOffsetFMask = 0x3B200C00,
881   LoadStoreUnscaledOffsetMask  = 0xFFE00C00,
882   PRFUM                        = LoadStoreUnscaledOffsetFixed | PRFM,
883   #define LOAD_STORE_UNSCALED(A, B, C, D)  \
884   A##U##B##_##C = LoadStoreUnscaledOffsetFixed | D
885   LOAD_STORE_OP_LIST(LOAD_STORE_UNSCALED)
886   #undef LOAD_STORE_UNSCALED
887 };
888 
889 // Load/store post index.
890 enum LoadStorePostIndex {
891   LoadStorePostIndexFixed = 0x38000400,
892   LoadStorePostIndexFMask = 0x3B200C00,
893   LoadStorePostIndexMask  = 0xFFE00C00,
894   #define LOAD_STORE_POST_INDEX(A, B, C, D)  \
895   A##B##_##C##_post = LoadStorePostIndexFixed | D
896   LOAD_STORE_OP_LIST(LOAD_STORE_POST_INDEX)
897   #undef LOAD_STORE_POST_INDEX
898 };
899 
900 // Load/store pre index.
901 enum LoadStorePreIndex {
902   LoadStorePreIndexFixed = 0x38000C00,
903   LoadStorePreIndexFMask = 0x3B200C00,
904   LoadStorePreIndexMask  = 0xFFE00C00,
905   #define LOAD_STORE_PRE_INDEX(A, B, C, D)  \
906   A##B##_##C##_pre = LoadStorePreIndexFixed | D
907   LOAD_STORE_OP_LIST(LOAD_STORE_PRE_INDEX)
908   #undef LOAD_STORE_PRE_INDEX
909 };
910 
911 // Load/store unsigned offset.
912 enum LoadStoreUnsignedOffset {
913   LoadStoreUnsignedOffsetFixed = 0x39000000,
914   LoadStoreUnsignedOffsetFMask = 0x3B000000,
915   LoadStoreUnsignedOffsetMask  = 0xFFC00000,
916   PRFM_unsigned                = LoadStoreUnsignedOffsetFixed | PRFM,
917   #define LOAD_STORE_UNSIGNED_OFFSET(A, B, C, D) \
918   A##B##_##C##_unsigned = LoadStoreUnsignedOffsetFixed | D
919   LOAD_STORE_OP_LIST(LOAD_STORE_UNSIGNED_OFFSET)
920   #undef LOAD_STORE_UNSIGNED_OFFSET
921 };
922 
923 // Load/store register offset.
924 enum LoadStoreRegisterOffset {
925   LoadStoreRegisterOffsetFixed = 0x38200800,
926   LoadStoreRegisterOffsetFMask = 0x3B200C00,
927   LoadStoreRegisterOffsetMask  = 0xFFE00C00,
928   PRFM_reg                     = LoadStoreRegisterOffsetFixed | PRFM,
929   #define LOAD_STORE_REGISTER_OFFSET(A, B, C, D) \
930   A##B##_##C##_reg = LoadStoreRegisterOffsetFixed | D
931   LOAD_STORE_OP_LIST(LOAD_STORE_REGISTER_OFFSET)
932   #undef LOAD_STORE_REGISTER_OFFSET
933 };
934 
935 enum LoadStoreExclusive {
936   LoadStoreExclusiveFixed = 0x08000000,
937   LoadStoreExclusiveFMask = 0x3F000000,
938   LoadStoreExclusiveMask  = 0xFFE08000,
939   STXRB_w  = LoadStoreExclusiveFixed | 0x00000000,
940   STXRH_w  = LoadStoreExclusiveFixed | 0x40000000,
941   STXR_w   = LoadStoreExclusiveFixed | 0x80000000,
942   STXR_x   = LoadStoreExclusiveFixed | 0xC0000000,
943   LDXRB_w  = LoadStoreExclusiveFixed | 0x00400000,
944   LDXRH_w  = LoadStoreExclusiveFixed | 0x40400000,
945   LDXR_w   = LoadStoreExclusiveFixed | 0x80400000,
946   LDXR_x   = LoadStoreExclusiveFixed | 0xC0400000,
947   STXP_w   = LoadStoreExclusiveFixed | 0x80200000,
948   STXP_x   = LoadStoreExclusiveFixed | 0xC0200000,
949   LDXP_w   = LoadStoreExclusiveFixed | 0x80600000,
950   LDXP_x   = LoadStoreExclusiveFixed | 0xC0600000,
951   STLXRB_w = LoadStoreExclusiveFixed | 0x00008000,
952   STLXRH_w = LoadStoreExclusiveFixed | 0x40008000,
953   STLXR_w  = LoadStoreExclusiveFixed | 0x80008000,
954   STLXR_x  = LoadStoreExclusiveFixed | 0xC0008000,
955   LDAXRB_w = LoadStoreExclusiveFixed | 0x00408000,
956   LDAXRH_w = LoadStoreExclusiveFixed | 0x40408000,
957   LDAXR_w  = LoadStoreExclusiveFixed | 0x80408000,
958   LDAXR_x  = LoadStoreExclusiveFixed | 0xC0408000,
959   STLXP_w  = LoadStoreExclusiveFixed | 0x80208000,
960   STLXP_x  = LoadStoreExclusiveFixed | 0xC0208000,
961   LDAXP_w  = LoadStoreExclusiveFixed | 0x80608000,
962   LDAXP_x  = LoadStoreExclusiveFixed | 0xC0608000,
963   STLRB_w  = LoadStoreExclusiveFixed | 0x00808000,
964   STLRH_w  = LoadStoreExclusiveFixed | 0x40808000,
965   STLR_w   = LoadStoreExclusiveFixed | 0x80808000,
966   STLR_x   = LoadStoreExclusiveFixed | 0xC0808000,
967   LDARB_w  = LoadStoreExclusiveFixed | 0x00C08000,
968   LDARH_w  = LoadStoreExclusiveFixed | 0x40C08000,
969   LDAR_w   = LoadStoreExclusiveFixed | 0x80C08000,
970   LDAR_x   = LoadStoreExclusiveFixed | 0xC0C08000
971 };
972 
973 // Conditional compare.
974 enum ConditionalCompareOp {
975   ConditionalCompareMask = 0x60000000,
976   CCMN                   = 0x20000000,
977   CCMP                   = 0x60000000
978 };
979 
980 // Conditional compare register.
981 enum ConditionalCompareRegisterOp {
982   ConditionalCompareRegisterFixed = 0x1A400000,
983   ConditionalCompareRegisterFMask = 0x1FE00800,
984   ConditionalCompareRegisterMask  = 0xFFE00C10,
985   CCMN_w = ConditionalCompareRegisterFixed | CCMN,
986   CCMN_x = ConditionalCompareRegisterFixed | SixtyFourBits | CCMN,
987   CCMP_w = ConditionalCompareRegisterFixed | CCMP,
988   CCMP_x = ConditionalCompareRegisterFixed | SixtyFourBits | CCMP
989 };
990 
991 // Conditional compare immediate.
992 enum ConditionalCompareImmediateOp {
993   ConditionalCompareImmediateFixed = 0x1A400800,
994   ConditionalCompareImmediateFMask = 0x1FE00800,
995   ConditionalCompareImmediateMask  = 0xFFE00C10,
996   CCMN_w_imm = ConditionalCompareImmediateFixed | CCMN,
997   CCMN_x_imm = ConditionalCompareImmediateFixed | SixtyFourBits | CCMN,
998   CCMP_w_imm = ConditionalCompareImmediateFixed | CCMP,
999   CCMP_x_imm = ConditionalCompareImmediateFixed | SixtyFourBits | CCMP
1000 };
1001 
1002 // Conditional select.
1003 enum ConditionalSelectOp {
1004   ConditionalSelectFixed = 0x1A800000,
1005   ConditionalSelectFMask = 0x1FE00000,
1006   ConditionalSelectMask  = 0xFFE00C00,
1007   CSEL_w                 = ConditionalSelectFixed | 0x00000000,
1008   CSEL_x                 = ConditionalSelectFixed | 0x80000000,
1009   CSEL                   = CSEL_w,
1010   CSINC_w                = ConditionalSelectFixed | 0x00000400,
1011   CSINC_x                = ConditionalSelectFixed | 0x80000400,
1012   CSINC                  = CSINC_w,
1013   CSINV_w                = ConditionalSelectFixed | 0x40000000,
1014   CSINV_x                = ConditionalSelectFixed | 0xC0000000,
1015   CSINV                  = CSINV_w,
1016   CSNEG_w                = ConditionalSelectFixed | 0x40000400,
1017   CSNEG_x                = ConditionalSelectFixed | 0xC0000400,
1018   CSNEG                  = CSNEG_w
1019 };
1020 
1021 // Data processing 1 source.
1022 enum DataProcessing1SourceOp {
1023   DataProcessing1SourceFixed = 0x5AC00000,
1024   DataProcessing1SourceFMask = 0x5FE00000,
1025   DataProcessing1SourceMask  = 0xFFFFFC00,
1026   RBIT    = DataProcessing1SourceFixed | 0x00000000,
1027   RBIT_w  = RBIT,
1028   RBIT_x  = RBIT | SixtyFourBits,
1029   REV16   = DataProcessing1SourceFixed | 0x00000400,
1030   REV16_w = REV16,
1031   REV16_x = REV16 | SixtyFourBits,
1032   REV     = DataProcessing1SourceFixed | 0x00000800,
1033   REV_w   = REV,
1034   REV32_x = REV | SixtyFourBits,
1035   REV_x   = DataProcessing1SourceFixed | SixtyFourBits | 0x00000C00,
1036   CLZ     = DataProcessing1SourceFixed | 0x00001000,
1037   CLZ_w   = CLZ,
1038   CLZ_x   = CLZ | SixtyFourBits,
1039   CLS     = DataProcessing1SourceFixed | 0x00001400,
1040   CLS_w   = CLS,
1041   CLS_x   = CLS | SixtyFourBits
1042 };
1043 
1044 // Data processing 2 source.
1045 enum DataProcessing2SourceOp {
1046   DataProcessing2SourceFixed = 0x1AC00000,
1047   DataProcessing2SourceFMask = 0x5FE00000,
1048   DataProcessing2SourceMask  = 0xFFE0FC00,
1049   UDIV_w  = DataProcessing2SourceFixed | 0x00000800,
1050   UDIV_x  = DataProcessing2SourceFixed | 0x80000800,
1051   UDIV    = UDIV_w,
1052   SDIV_w  = DataProcessing2SourceFixed | 0x00000C00,
1053   SDIV_x  = DataProcessing2SourceFixed | 0x80000C00,
1054   SDIV    = SDIV_w,
1055   LSLV_w  = DataProcessing2SourceFixed | 0x00002000,
1056   LSLV_x  = DataProcessing2SourceFixed | 0x80002000,
1057   LSLV    = LSLV_w,
1058   LSRV_w  = DataProcessing2SourceFixed | 0x00002400,
1059   LSRV_x  = DataProcessing2SourceFixed | 0x80002400,
1060   LSRV    = LSRV_w,
1061   ASRV_w  = DataProcessing2SourceFixed | 0x00002800,
1062   ASRV_x  = DataProcessing2SourceFixed | 0x80002800,
1063   ASRV    = ASRV_w,
1064   RORV_w  = DataProcessing2SourceFixed | 0x00002C00,
1065   RORV_x  = DataProcessing2SourceFixed | 0x80002C00,
1066   RORV    = RORV_w,
1067   CRC32B  = DataProcessing2SourceFixed | 0x00004000,
1068   CRC32H  = DataProcessing2SourceFixed | 0x00004400,
1069   CRC32W  = DataProcessing2SourceFixed | 0x00004800,
1070   CRC32X  = DataProcessing2SourceFixed | SixtyFourBits | 0x00004C00,
1071   CRC32CB = DataProcessing2SourceFixed | 0x00005000,
1072   CRC32CH = DataProcessing2SourceFixed | 0x00005400,
1073   CRC32CW = DataProcessing2SourceFixed | 0x00005800,
1074   CRC32CX = DataProcessing2SourceFixed | SixtyFourBits | 0x00005C00
1075 };
1076 
1077 // Data processing 3 source.
1078 enum DataProcessing3SourceOp {
1079   DataProcessing3SourceFixed = 0x1B000000,
1080   DataProcessing3SourceFMask = 0x1F000000,
1081   DataProcessing3SourceMask  = 0xFFE08000,
1082   MADD_w                     = DataProcessing3SourceFixed | 0x00000000,
1083   MADD_x                     = DataProcessing3SourceFixed | 0x80000000,
1084   MADD                       = MADD_w,
1085   MSUB_w                     = DataProcessing3SourceFixed | 0x00008000,
1086   MSUB_x                     = DataProcessing3SourceFixed | 0x80008000,
1087   MSUB                       = MSUB_w,
1088   SMADDL_x                   = DataProcessing3SourceFixed | 0x80200000,
1089   SMSUBL_x                   = DataProcessing3SourceFixed | 0x80208000,
1090   SMULH_x                    = DataProcessing3SourceFixed | 0x80400000,
1091   UMADDL_x                   = DataProcessing3SourceFixed | 0x80A00000,
1092   UMSUBL_x                   = DataProcessing3SourceFixed | 0x80A08000,
1093   UMULH_x                    = DataProcessing3SourceFixed | 0x80C00000
1094 };
1095 
1096 // Floating point compare.
1097 enum FPCompareOp {
1098   FPCompareFixed = 0x1E202000,
1099   FPCompareFMask = 0x5F203C00,
1100   FPCompareMask  = 0xFFE0FC1F,
1101   FCMP_s         = FPCompareFixed | 0x00000000,
1102   FCMP_d         = FPCompareFixed | FP64 | 0x00000000,
1103   FCMP           = FCMP_s,
1104   FCMP_s_zero    = FPCompareFixed | 0x00000008,
1105   FCMP_d_zero    = FPCompareFixed | FP64 | 0x00000008,
1106   FCMP_zero      = FCMP_s_zero,
1107   FCMPE_s        = FPCompareFixed | 0x00000010,
1108   FCMPE_d        = FPCompareFixed | FP64 | 0x00000010,
1109   FCMPE          = FCMPE_s,
1110   FCMPE_s_zero   = FPCompareFixed | 0x00000018,
1111   FCMPE_d_zero   = FPCompareFixed | FP64 | 0x00000018,
1112   FCMPE_zero     = FCMPE_s_zero
1113 };
1114 
1115 // Floating point conditional compare.
1116 enum FPConditionalCompareOp {
1117   FPConditionalCompareFixed = 0x1E200400,
1118   FPConditionalCompareFMask = 0x5F200C00,
1119   FPConditionalCompareMask  = 0xFFE00C10,
1120   FCCMP_s                   = FPConditionalCompareFixed | 0x00000000,
1121   FCCMP_d                   = FPConditionalCompareFixed | FP64 | 0x00000000,
1122   FCCMP                     = FCCMP_s,
1123   FCCMPE_s                  = FPConditionalCompareFixed | 0x00000010,
1124   FCCMPE_d                  = FPConditionalCompareFixed | FP64 | 0x00000010,
1125   FCCMPE                    = FCCMPE_s
1126 };
1127 
1128 // Floating point conditional select.
1129 enum FPConditionalSelectOp {
1130   FPConditionalSelectFixed = 0x1E200C00,
1131   FPConditionalSelectFMask = 0x5F200C00,
1132   FPConditionalSelectMask  = 0xFFE00C00,
1133   FCSEL_s                  = FPConditionalSelectFixed | 0x00000000,
1134   FCSEL_d                  = FPConditionalSelectFixed | FP64 | 0x00000000,
1135   FCSEL                    = FCSEL_s
1136 };
1137 
1138 // Floating point immediate.
1139 enum FPImmediateOp {
1140   FPImmediateFixed = 0x1E201000,
1141   FPImmediateFMask = 0x5F201C00,
1142   FPImmediateMask  = 0xFFE01C00,
1143   FMOV_s_imm       = FPImmediateFixed | 0x00000000,
1144   FMOV_d_imm       = FPImmediateFixed | FP64 | 0x00000000
1145 };
1146 
1147 // Floating point data processing 1 source.
1148 enum FPDataProcessing1SourceOp {
1149   FPDataProcessing1SourceFixed = 0x1E204000,
1150   FPDataProcessing1SourceFMask = 0x5F207C00,
1151   FPDataProcessing1SourceMask  = 0xFFFFFC00,
1152   FMOV_s   = FPDataProcessing1SourceFixed | 0x00000000,
1153   FMOV_d   = FPDataProcessing1SourceFixed | FP64 | 0x00000000,
1154   FMOV     = FMOV_s,
1155   FABS_s   = FPDataProcessing1SourceFixed | 0x00008000,
1156   FABS_d   = FPDataProcessing1SourceFixed | FP64 | 0x00008000,
1157   FABS     = FABS_s,
1158   FNEG_s   = FPDataProcessing1SourceFixed | 0x00010000,
1159   FNEG_d   = FPDataProcessing1SourceFixed | FP64 | 0x00010000,
1160   FNEG     = FNEG_s,
1161   FSQRT_s  = FPDataProcessing1SourceFixed | 0x00018000,
1162   FSQRT_d  = FPDataProcessing1SourceFixed | FP64 | 0x00018000,
1163   FSQRT    = FSQRT_s,
1164   FCVT_ds  = FPDataProcessing1SourceFixed | 0x00028000,
1165   FCVT_sd  = FPDataProcessing1SourceFixed | FP64 | 0x00020000,
1166   FCVT_hs  = FPDataProcessing1SourceFixed | 0x00038000,
1167   FCVT_hd  = FPDataProcessing1SourceFixed | FP64 | 0x00038000,
1168   FCVT_sh  = FPDataProcessing1SourceFixed | 0x00C20000,
1169   FCVT_dh  = FPDataProcessing1SourceFixed | 0x00C28000,
1170   FRINTN_s = FPDataProcessing1SourceFixed | 0x00040000,
1171   FRINTN_d = FPDataProcessing1SourceFixed | FP64 | 0x00040000,
1172   FRINTN   = FRINTN_s,
1173   FRINTP_s = FPDataProcessing1SourceFixed | 0x00048000,
1174   FRINTP_d = FPDataProcessing1SourceFixed | FP64 | 0x00048000,
1175   FRINTP   = FRINTP_s,
1176   FRINTM_s = FPDataProcessing1SourceFixed | 0x00050000,
1177   FRINTM_d = FPDataProcessing1SourceFixed | FP64 | 0x00050000,
1178   FRINTM   = FRINTM_s,
1179   FRINTZ_s = FPDataProcessing1SourceFixed | 0x00058000,
1180   FRINTZ_d = FPDataProcessing1SourceFixed | FP64 | 0x00058000,
1181   FRINTZ   = FRINTZ_s,
1182   FRINTA_s = FPDataProcessing1SourceFixed | 0x00060000,
1183   FRINTA_d = FPDataProcessing1SourceFixed | FP64 | 0x00060000,
1184   FRINTA   = FRINTA_s,
1185   FRINTX_s = FPDataProcessing1SourceFixed | 0x00070000,
1186   FRINTX_d = FPDataProcessing1SourceFixed | FP64 | 0x00070000,
1187   FRINTX   = FRINTX_s,
1188   FRINTI_s = FPDataProcessing1SourceFixed | 0x00078000,
1189   FRINTI_d = FPDataProcessing1SourceFixed | FP64 | 0x00078000,
1190   FRINTI   = FRINTI_s
1191 };
1192 
1193 // Floating point data processing 2 source.
1194 enum FPDataProcessing2SourceOp {
1195   FPDataProcessing2SourceFixed = 0x1E200800,
1196   FPDataProcessing2SourceFMask = 0x5F200C00,
1197   FPDataProcessing2SourceMask  = 0xFFE0FC00,
1198   FMUL     = FPDataProcessing2SourceFixed | 0x00000000,
1199   FMUL_s   = FMUL,
1200   FMUL_d   = FMUL | FP64,
1201   FDIV     = FPDataProcessing2SourceFixed | 0x00001000,
1202   FDIV_s   = FDIV,
1203   FDIV_d   = FDIV | FP64,
1204   FADD     = FPDataProcessing2SourceFixed | 0x00002000,
1205   FADD_s   = FADD,
1206   FADD_d   = FADD | FP64,
1207   FSUB     = FPDataProcessing2SourceFixed | 0x00003000,
1208   FSUB_s   = FSUB,
1209   FSUB_d   = FSUB | FP64,
1210   FMAX     = FPDataProcessing2SourceFixed | 0x00004000,
1211   FMAX_s   = FMAX,
1212   FMAX_d   = FMAX | FP64,
1213   FMIN     = FPDataProcessing2SourceFixed | 0x00005000,
1214   FMIN_s   = FMIN,
1215   FMIN_d   = FMIN | FP64,
1216   FMAXNM   = FPDataProcessing2SourceFixed | 0x00006000,
1217   FMAXNM_s = FMAXNM,
1218   FMAXNM_d = FMAXNM | FP64,
1219   FMINNM   = FPDataProcessing2SourceFixed | 0x00007000,
1220   FMINNM_s = FMINNM,
1221   FMINNM_d = FMINNM | FP64,
1222   FNMUL    = FPDataProcessing2SourceFixed | 0x00008000,
1223   FNMUL_s  = FNMUL,
1224   FNMUL_d  = FNMUL | FP64
1225 };
1226 
1227 // Floating point data processing 3 source.
1228 enum FPDataProcessing3SourceOp {
1229   FPDataProcessing3SourceFixed = 0x1F000000,
1230   FPDataProcessing3SourceFMask = 0x5F000000,
1231   FPDataProcessing3SourceMask  = 0xFFE08000,
1232   FMADD_s                      = FPDataProcessing3SourceFixed | 0x00000000,
1233   FMSUB_s                      = FPDataProcessing3SourceFixed | 0x00008000,
1234   FNMADD_s                     = FPDataProcessing3SourceFixed | 0x00200000,
1235   FNMSUB_s                     = FPDataProcessing3SourceFixed | 0x00208000,
1236   FMADD_d                      = FPDataProcessing3SourceFixed | 0x00400000,
1237   FMSUB_d                      = FPDataProcessing3SourceFixed | 0x00408000,
1238   FNMADD_d                     = FPDataProcessing3SourceFixed | 0x00600000,
1239   FNMSUB_d                     = FPDataProcessing3SourceFixed | 0x00608000
1240 };
1241 
1242 // Conversion between floating point and integer.
1243 enum FPIntegerConvertOp {
1244   FPIntegerConvertFixed = 0x1E200000,
1245   FPIntegerConvertFMask = 0x5F20FC00,
1246   FPIntegerConvertMask  = 0xFFFFFC00,
1247   FCVTNS    = FPIntegerConvertFixed | 0x00000000,
1248   FCVTNS_ws = FCVTNS,
1249   FCVTNS_xs = FCVTNS | SixtyFourBits,
1250   FCVTNS_wd = FCVTNS | FP64,
1251   FCVTNS_xd = FCVTNS | SixtyFourBits | FP64,
1252   FCVTNU    = FPIntegerConvertFixed | 0x00010000,
1253   FCVTNU_ws = FCVTNU,
1254   FCVTNU_xs = FCVTNU | SixtyFourBits,
1255   FCVTNU_wd = FCVTNU | FP64,
1256   FCVTNU_xd = FCVTNU | SixtyFourBits | FP64,
1257   FCVTPS    = FPIntegerConvertFixed | 0x00080000,
1258   FCVTPS_ws = FCVTPS,
1259   FCVTPS_xs = FCVTPS | SixtyFourBits,
1260   FCVTPS_wd = FCVTPS | FP64,
1261   FCVTPS_xd = FCVTPS | SixtyFourBits | FP64,
1262   FCVTPU    = FPIntegerConvertFixed | 0x00090000,
1263   FCVTPU_ws = FCVTPU,
1264   FCVTPU_xs = FCVTPU | SixtyFourBits,
1265   FCVTPU_wd = FCVTPU | FP64,
1266   FCVTPU_xd = FCVTPU | SixtyFourBits | FP64,
1267   FCVTMS    = FPIntegerConvertFixed | 0x00100000,
1268   FCVTMS_ws = FCVTMS,
1269   FCVTMS_xs = FCVTMS | SixtyFourBits,
1270   FCVTMS_wd = FCVTMS | FP64,
1271   FCVTMS_xd = FCVTMS | SixtyFourBits | FP64,
1272   FCVTMU    = FPIntegerConvertFixed | 0x00110000,
1273   FCVTMU_ws = FCVTMU,
1274   FCVTMU_xs = FCVTMU | SixtyFourBits,
1275   FCVTMU_wd = FCVTMU | FP64,
1276   FCVTMU_xd = FCVTMU | SixtyFourBits | FP64,
1277   FCVTZS    = FPIntegerConvertFixed | 0x00180000,
1278   FCVTZS_ws = FCVTZS,
1279   FCVTZS_xs = FCVTZS | SixtyFourBits,
1280   FCVTZS_wd = FCVTZS | FP64,
1281   FCVTZS_xd = FCVTZS | SixtyFourBits | FP64,
1282   FCVTZU    = FPIntegerConvertFixed | 0x00190000,
1283   FCVTZU_ws = FCVTZU,
1284   FCVTZU_xs = FCVTZU | SixtyFourBits,
1285   FCVTZU_wd = FCVTZU | FP64,
1286   FCVTZU_xd = FCVTZU | SixtyFourBits | FP64,
1287   SCVTF     = FPIntegerConvertFixed | 0x00020000,
1288   SCVTF_sw  = SCVTF,
1289   SCVTF_sx  = SCVTF | SixtyFourBits,
1290   SCVTF_dw  = SCVTF | FP64,
1291   SCVTF_dx  = SCVTF | SixtyFourBits | FP64,
1292   UCVTF     = FPIntegerConvertFixed | 0x00030000,
1293   UCVTF_sw  = UCVTF,
1294   UCVTF_sx  = UCVTF | SixtyFourBits,
1295   UCVTF_dw  = UCVTF | FP64,
1296   UCVTF_dx  = UCVTF | SixtyFourBits | FP64,
1297   FCVTAS    = FPIntegerConvertFixed | 0x00040000,
1298   FCVTAS_ws = FCVTAS,
1299   FCVTAS_xs = FCVTAS | SixtyFourBits,
1300   FCVTAS_wd = FCVTAS | FP64,
1301   FCVTAS_xd = FCVTAS | SixtyFourBits | FP64,
1302   FCVTAU    = FPIntegerConvertFixed | 0x00050000,
1303   FCVTAU_ws = FCVTAU,
1304   FCVTAU_xs = FCVTAU | SixtyFourBits,
1305   FCVTAU_wd = FCVTAU | FP64,
1306   FCVTAU_xd = FCVTAU | SixtyFourBits | FP64,
1307   FMOV_ws   = FPIntegerConvertFixed | 0x00060000,
1308   FMOV_sw   = FPIntegerConvertFixed | 0x00070000,
1309   FMOV_xd   = FMOV_ws | SixtyFourBits | FP64,
1310   FMOV_dx   = FMOV_sw | SixtyFourBits | FP64,
1311   FMOV_d1_x = FPIntegerConvertFixed | SixtyFourBits | 0x008F0000,
1312   FMOV_x_d1 = FPIntegerConvertFixed | SixtyFourBits | 0x008E0000
1313 };
1314 
1315 // Conversion between fixed point and floating point.
1316 enum FPFixedPointConvertOp {
1317   FPFixedPointConvertFixed = 0x1E000000,
1318   FPFixedPointConvertFMask = 0x5F200000,
1319   FPFixedPointConvertMask  = 0xFFFF0000,
1320   FCVTZS_fixed    = FPFixedPointConvertFixed | 0x00180000,
1321   FCVTZS_ws_fixed = FCVTZS_fixed,
1322   FCVTZS_xs_fixed = FCVTZS_fixed | SixtyFourBits,
1323   FCVTZS_wd_fixed = FCVTZS_fixed | FP64,
1324   FCVTZS_xd_fixed = FCVTZS_fixed | SixtyFourBits | FP64,
1325   FCVTZU_fixed    = FPFixedPointConvertFixed | 0x00190000,
1326   FCVTZU_ws_fixed = FCVTZU_fixed,
1327   FCVTZU_xs_fixed = FCVTZU_fixed | SixtyFourBits,
1328   FCVTZU_wd_fixed = FCVTZU_fixed | FP64,
1329   FCVTZU_xd_fixed = FCVTZU_fixed | SixtyFourBits | FP64,
1330   SCVTF_fixed     = FPFixedPointConvertFixed | 0x00020000,
1331   SCVTF_sw_fixed  = SCVTF_fixed,
1332   SCVTF_sx_fixed  = SCVTF_fixed | SixtyFourBits,
1333   SCVTF_dw_fixed  = SCVTF_fixed | FP64,
1334   SCVTF_dx_fixed  = SCVTF_fixed | SixtyFourBits | FP64,
1335   UCVTF_fixed     = FPFixedPointConvertFixed | 0x00030000,
1336   UCVTF_sw_fixed  = UCVTF_fixed,
1337   UCVTF_sx_fixed  = UCVTF_fixed | SixtyFourBits,
1338   UCVTF_dw_fixed  = UCVTF_fixed | FP64,
1339   UCVTF_dx_fixed  = UCVTF_fixed | SixtyFourBits | FP64
1340 };
1341 
1342 // Crypto - two register SHA.
1343 enum Crypto2RegSHAOp {
1344   Crypto2RegSHAFixed = 0x5E280800,
1345   Crypto2RegSHAFMask = 0xFF3E0C00
1346 };
1347 
1348 // Crypto - three register SHA.
1349 enum Crypto3RegSHAOp {
1350   Crypto3RegSHAFixed = 0x5E000000,
1351   Crypto3RegSHAFMask = 0xFF208C00
1352 };
1353 
1354 // Crypto - AES.
1355 enum CryptoAESOp {
1356   CryptoAESFixed = 0x4E280800,
1357   CryptoAESFMask = 0xFF3E0C00
1358 };
1359 
1360 // NEON instructions with two register operands.
1361 enum NEON2RegMiscOp {
1362   NEON2RegMiscFixed = 0x0E200800,
1363   NEON2RegMiscFMask = 0x9F3E0C00,
1364   NEON2RegMiscMask  = 0xBF3FFC00,
1365   NEON2RegMiscUBit  = 0x20000000,
1366   NEON_REV64     = NEON2RegMiscFixed | 0x00000000,
1367   NEON_REV32     = NEON2RegMiscFixed | 0x20000000,
1368   NEON_REV16     = NEON2RegMiscFixed | 0x00001000,
1369   NEON_SADDLP    = NEON2RegMiscFixed | 0x00002000,
1370   NEON_UADDLP    = NEON_SADDLP | NEON2RegMiscUBit,
1371   NEON_SUQADD    = NEON2RegMiscFixed | 0x00003000,
1372   NEON_USQADD    = NEON_SUQADD | NEON2RegMiscUBit,
1373   NEON_CLS       = NEON2RegMiscFixed | 0x00004000,
1374   NEON_CLZ       = NEON2RegMiscFixed | 0x20004000,
1375   NEON_CNT       = NEON2RegMiscFixed | 0x00005000,
1376   NEON_RBIT_NOT  = NEON2RegMiscFixed | 0x20005000,
1377   NEON_SADALP    = NEON2RegMiscFixed | 0x00006000,
1378   NEON_UADALP    = NEON_SADALP | NEON2RegMiscUBit,
1379   NEON_SQABS     = NEON2RegMiscFixed | 0x00007000,
1380   NEON_SQNEG     = NEON2RegMiscFixed | 0x20007000,
1381   NEON_CMGT_zero = NEON2RegMiscFixed | 0x00008000,
1382   NEON_CMGE_zero = NEON2RegMiscFixed | 0x20008000,
1383   NEON_CMEQ_zero = NEON2RegMiscFixed | 0x00009000,
1384   NEON_CMLE_zero = NEON2RegMiscFixed | 0x20009000,
1385   NEON_CMLT_zero = NEON2RegMiscFixed | 0x0000A000,
1386   NEON_ABS       = NEON2RegMiscFixed | 0x0000B000,
1387   NEON_NEG       = NEON2RegMiscFixed | 0x2000B000,
1388   NEON_XTN       = NEON2RegMiscFixed | 0x00012000,
1389   NEON_SQXTUN    = NEON2RegMiscFixed | 0x20012000,
1390   NEON_SHLL      = NEON2RegMiscFixed | 0x20013000,
1391   NEON_SQXTN     = NEON2RegMiscFixed | 0x00014000,
1392   NEON_UQXTN     = NEON_SQXTN | NEON2RegMiscUBit,
1393 
1394   NEON2RegMiscOpcode = 0x0001F000,
1395   NEON_RBIT_NOT_opcode = NEON_RBIT_NOT & NEON2RegMiscOpcode,
1396   NEON_NEG_opcode = NEON_NEG & NEON2RegMiscOpcode,
1397   NEON_XTN_opcode = NEON_XTN & NEON2RegMiscOpcode,
1398   NEON_UQXTN_opcode = NEON_UQXTN & NEON2RegMiscOpcode,
1399 
1400   // These instructions use only one bit of the size field. The other bit is
1401   // used to distinguish between instructions.
1402   NEON2RegMiscFPMask = NEON2RegMiscMask | 0x00800000,
1403   NEON_FABS   = NEON2RegMiscFixed | 0x0080F000,
1404   NEON_FNEG   = NEON2RegMiscFixed | 0x2080F000,
1405   NEON_FCVTN  = NEON2RegMiscFixed | 0x00016000,
1406   NEON_FCVTXN = NEON2RegMiscFixed | 0x20016000,
1407   NEON_FCVTL  = NEON2RegMiscFixed | 0x00017000,
1408   NEON_FRINTN = NEON2RegMiscFixed | 0x00018000,
1409   NEON_FRINTA = NEON2RegMiscFixed | 0x20018000,
1410   NEON_FRINTP = NEON2RegMiscFixed | 0x00818000,
1411   NEON_FRINTM = NEON2RegMiscFixed | 0x00019000,
1412   NEON_FRINTX = NEON2RegMiscFixed | 0x20019000,
1413   NEON_FRINTZ = NEON2RegMiscFixed | 0x00819000,
1414   NEON_FRINTI = NEON2RegMiscFixed | 0x20819000,
1415   NEON_FCVTNS = NEON2RegMiscFixed | 0x0001A000,
1416   NEON_FCVTNU = NEON_FCVTNS | NEON2RegMiscUBit,
1417   NEON_FCVTPS = NEON2RegMiscFixed | 0x0081A000,
1418   NEON_FCVTPU = NEON_FCVTPS | NEON2RegMiscUBit,
1419   NEON_FCVTMS = NEON2RegMiscFixed | 0x0001B000,
1420   NEON_FCVTMU = NEON_FCVTMS | NEON2RegMiscUBit,
1421   NEON_FCVTZS = NEON2RegMiscFixed | 0x0081B000,
1422   NEON_FCVTZU = NEON_FCVTZS | NEON2RegMiscUBit,
1423   NEON_FCVTAS = NEON2RegMiscFixed | 0x0001C000,
1424   NEON_FCVTAU = NEON_FCVTAS | NEON2RegMiscUBit,
1425   NEON_FSQRT  = NEON2RegMiscFixed | 0x2081F000,
1426   NEON_SCVTF  = NEON2RegMiscFixed | 0x0001D000,
1427   NEON_UCVTF  = NEON_SCVTF | NEON2RegMiscUBit,
1428   NEON_URSQRTE = NEON2RegMiscFixed | 0x2081C000,
1429   NEON_URECPE  = NEON2RegMiscFixed | 0x0081C000,
1430   NEON_FRSQRTE = NEON2RegMiscFixed | 0x2081D000,
1431   NEON_FRECPE  = NEON2RegMiscFixed | 0x0081D000,
1432   NEON_FCMGT_zero = NEON2RegMiscFixed | 0x0080C000,
1433   NEON_FCMGE_zero = NEON2RegMiscFixed | 0x2080C000,
1434   NEON_FCMEQ_zero = NEON2RegMiscFixed | 0x0080D000,
1435   NEON_FCMLE_zero = NEON2RegMiscFixed | 0x2080D000,
1436   NEON_FCMLT_zero = NEON2RegMiscFixed | 0x0080E000,
1437 
1438   NEON_FCVTL_opcode = NEON_FCVTL & NEON2RegMiscOpcode,
1439   NEON_FCVTN_opcode = NEON_FCVTN & NEON2RegMiscOpcode
1440 };
1441 
1442 // NEON instructions with three same-type operands.
1443 enum NEON3SameOp {
1444   NEON3SameFixed = 0x0E200400,
1445   NEON3SameFMask = 0x9F200400,
1446   NEON3SameMask =  0xBF20FC00,
1447   NEON3SameUBit =  0x20000000,
1448   NEON_ADD    = NEON3SameFixed | 0x00008000,
1449   NEON_ADDP   = NEON3SameFixed | 0x0000B800,
1450   NEON_SHADD  = NEON3SameFixed | 0x00000000,
1451   NEON_SHSUB  = NEON3SameFixed | 0x00002000,
1452   NEON_SRHADD = NEON3SameFixed | 0x00001000,
1453   NEON_CMEQ   = NEON3SameFixed | NEON3SameUBit | 0x00008800,
1454   NEON_CMGE   = NEON3SameFixed | 0x00003800,
1455   NEON_CMGT   = NEON3SameFixed | 0x00003000,
1456   NEON_CMHI   = NEON3SameFixed | NEON3SameUBit | NEON_CMGT,
1457   NEON_CMHS   = NEON3SameFixed | NEON3SameUBit | NEON_CMGE,
1458   NEON_CMTST  = NEON3SameFixed | 0x00008800,
1459   NEON_MLA    = NEON3SameFixed | 0x00009000,
1460   NEON_MLS    = NEON3SameFixed | 0x20009000,
1461   NEON_MUL    = NEON3SameFixed | 0x00009800,
1462   NEON_PMUL   = NEON3SameFixed | 0x20009800,
1463   NEON_SRSHL  = NEON3SameFixed | 0x00005000,
1464   NEON_SQSHL  = NEON3SameFixed | 0x00004800,
1465   NEON_SQRSHL = NEON3SameFixed | 0x00005800,
1466   NEON_SSHL   = NEON3SameFixed | 0x00004000,
1467   NEON_SMAX   = NEON3SameFixed | 0x00006000,
1468   NEON_SMAXP  = NEON3SameFixed | 0x0000A000,
1469   NEON_SMIN   = NEON3SameFixed | 0x00006800,
1470   NEON_SMINP  = NEON3SameFixed | 0x0000A800,
1471   NEON_SABD   = NEON3SameFixed | 0x00007000,
1472   NEON_SABA   = NEON3SameFixed | 0x00007800,
1473   NEON_UABD   = NEON3SameFixed | NEON3SameUBit | NEON_SABD,
1474   NEON_UABA   = NEON3SameFixed | NEON3SameUBit | NEON_SABA,
1475   NEON_SQADD  = NEON3SameFixed | 0x00000800,
1476   NEON_SQSUB  = NEON3SameFixed | 0x00002800,
1477   NEON_SUB    = NEON3SameFixed | NEON3SameUBit | 0x00008000,
1478   NEON_UHADD  = NEON3SameFixed | NEON3SameUBit | NEON_SHADD,
1479   NEON_UHSUB  = NEON3SameFixed | NEON3SameUBit | NEON_SHSUB,
1480   NEON_URHADD = NEON3SameFixed | NEON3SameUBit | NEON_SRHADD,
1481   NEON_UMAX   = NEON3SameFixed | NEON3SameUBit | NEON_SMAX,
1482   NEON_UMAXP  = NEON3SameFixed | NEON3SameUBit | NEON_SMAXP,
1483   NEON_UMIN   = NEON3SameFixed | NEON3SameUBit | NEON_SMIN,
1484   NEON_UMINP  = NEON3SameFixed | NEON3SameUBit | NEON_SMINP,
1485   NEON_URSHL  = NEON3SameFixed | NEON3SameUBit | NEON_SRSHL,
1486   NEON_UQADD  = NEON3SameFixed | NEON3SameUBit | NEON_SQADD,
1487   NEON_UQRSHL = NEON3SameFixed | NEON3SameUBit | NEON_SQRSHL,
1488   NEON_UQSHL  = NEON3SameFixed | NEON3SameUBit | NEON_SQSHL,
1489   NEON_UQSUB  = NEON3SameFixed | NEON3SameUBit | NEON_SQSUB,
1490   NEON_USHL   = NEON3SameFixed | NEON3SameUBit | NEON_SSHL,
1491   NEON_SQDMULH  = NEON3SameFixed | 0x0000B000,
1492   NEON_SQRDMULH = NEON3SameFixed | 0x2000B000,
1493 
1494   // NEON floating point instructions with three same-type operands.
1495   NEON3SameFPFixed = NEON3SameFixed | 0x0000C000,
1496   NEON3SameFPFMask = NEON3SameFMask | 0x0000C000,
1497   NEON3SameFPMask = NEON3SameMask | 0x00800000,
1498   NEON_FADD    = NEON3SameFixed | 0x0000D000,
1499   NEON_FSUB    = NEON3SameFixed | 0x0080D000,
1500   NEON_FMUL    = NEON3SameFixed | 0x2000D800,
1501   NEON_FDIV    = NEON3SameFixed | 0x2000F800,
1502   NEON_FMAX    = NEON3SameFixed | 0x0000F000,
1503   NEON_FMAXNM  = NEON3SameFixed | 0x0000C000,
1504   NEON_FMAXP   = NEON3SameFixed | 0x2000F000,
1505   NEON_FMAXNMP = NEON3SameFixed | 0x2000C000,
1506   NEON_FMIN    = NEON3SameFixed | 0x0080F000,
1507   NEON_FMINNM  = NEON3SameFixed | 0x0080C000,
1508   NEON_FMINP   = NEON3SameFixed | 0x2080F000,
1509   NEON_FMINNMP = NEON3SameFixed | 0x2080C000,
1510   NEON_FMLA    = NEON3SameFixed | 0x0000C800,
1511   NEON_FMLS    = NEON3SameFixed | 0x0080C800,
1512   NEON_FMULX   = NEON3SameFixed | 0x0000D800,
1513   NEON_FRECPS  = NEON3SameFixed | 0x0000F800,
1514   NEON_FRSQRTS = NEON3SameFixed | 0x0080F800,
1515   NEON_FABD    = NEON3SameFixed | 0x2080D000,
1516   NEON_FADDP   = NEON3SameFixed | 0x2000D000,
1517   NEON_FCMEQ   = NEON3SameFixed | 0x0000E000,
1518   NEON_FCMGE   = NEON3SameFixed | 0x2000E000,
1519   NEON_FCMGT   = NEON3SameFixed | 0x2080E000,
1520   NEON_FACGE   = NEON3SameFixed | 0x2000E800,
1521   NEON_FACGT   = NEON3SameFixed | 0x2080E800,
1522 
1523   // NEON logical instructions with three same-type operands.
1524   NEON3SameLogicalFixed = NEON3SameFixed | 0x00001800,
1525   NEON3SameLogicalFMask = NEON3SameFMask | 0x0000F800,
1526   NEON3SameLogicalMask = 0xBFE0FC00,
1527   NEON3SameLogicalFormatMask = NEON_Q,
1528   NEON_AND = NEON3SameLogicalFixed | 0x00000000,
1529   NEON_ORR = NEON3SameLogicalFixed | 0x00A00000,
1530   NEON_ORN = NEON3SameLogicalFixed | 0x00C00000,
1531   NEON_EOR = NEON3SameLogicalFixed | 0x20000000,
1532   NEON_BIC = NEON3SameLogicalFixed | 0x00400000,
1533   NEON_BIF = NEON3SameLogicalFixed | 0x20C00000,
1534   NEON_BIT = NEON3SameLogicalFixed | 0x20800000,
1535   NEON_BSL = NEON3SameLogicalFixed | 0x20400000
1536 };
1537 
1538 // NEON instructions with three different-type operands.
1539 enum NEON3DifferentOp {
1540   NEON3DifferentFixed = 0x0E200000,
1541   NEON3DifferentFMask = 0x9F200C00,
1542   NEON3DifferentMask  = 0xFF20FC00,
1543   NEON_ADDHN    = NEON3DifferentFixed | 0x00004000,
1544   NEON_ADDHN2   = NEON_ADDHN | NEON_Q,
1545   NEON_PMULL    = NEON3DifferentFixed | 0x0000E000,
1546   NEON_PMULL2   = NEON_PMULL | NEON_Q,
1547   NEON_RADDHN   = NEON3DifferentFixed | 0x20004000,
1548   NEON_RADDHN2  = NEON_RADDHN | NEON_Q,
1549   NEON_RSUBHN   = NEON3DifferentFixed | 0x20006000,
1550   NEON_RSUBHN2  = NEON_RSUBHN | NEON_Q,
1551   NEON_SABAL    = NEON3DifferentFixed | 0x00005000,
1552   NEON_SABAL2   = NEON_SABAL | NEON_Q,
1553   NEON_SABDL    = NEON3DifferentFixed | 0x00007000,
1554   NEON_SABDL2   = NEON_SABDL | NEON_Q,
1555   NEON_SADDL    = NEON3DifferentFixed | 0x00000000,
1556   NEON_SADDL2   = NEON_SADDL | NEON_Q,
1557   NEON_SADDW    = NEON3DifferentFixed | 0x00001000,
1558   NEON_SADDW2   = NEON_SADDW | NEON_Q,
1559   NEON_SMLAL    = NEON3DifferentFixed | 0x00008000,
1560   NEON_SMLAL2   = NEON_SMLAL | NEON_Q,
1561   NEON_SMLSL    = NEON3DifferentFixed | 0x0000A000,
1562   NEON_SMLSL2   = NEON_SMLSL | NEON_Q,
1563   NEON_SMULL    = NEON3DifferentFixed | 0x0000C000,
1564   NEON_SMULL2   = NEON_SMULL | NEON_Q,
1565   NEON_SSUBL    = NEON3DifferentFixed | 0x00002000,
1566   NEON_SSUBL2   = NEON_SSUBL | NEON_Q,
1567   NEON_SSUBW    = NEON3DifferentFixed | 0x00003000,
1568   NEON_SSUBW2   = NEON_SSUBW | NEON_Q,
1569   NEON_SQDMLAL  = NEON3DifferentFixed | 0x00009000,
1570   NEON_SQDMLAL2 = NEON_SQDMLAL | NEON_Q,
1571   NEON_SQDMLSL  = NEON3DifferentFixed | 0x0000B000,
1572   NEON_SQDMLSL2 = NEON_SQDMLSL | NEON_Q,
1573   NEON_SQDMULL  = NEON3DifferentFixed | 0x0000D000,
1574   NEON_SQDMULL2 = NEON_SQDMULL | NEON_Q,
1575   NEON_SUBHN    = NEON3DifferentFixed | 0x00006000,
1576   NEON_SUBHN2   = NEON_SUBHN | NEON_Q,
1577   NEON_UABAL    = NEON_SABAL | NEON3SameUBit,
1578   NEON_UABAL2   = NEON_UABAL | NEON_Q,
1579   NEON_UABDL    = NEON_SABDL | NEON3SameUBit,
1580   NEON_UABDL2   = NEON_UABDL | NEON_Q,
1581   NEON_UADDL    = NEON_SADDL | NEON3SameUBit,
1582   NEON_UADDL2   = NEON_UADDL | NEON_Q,
1583   NEON_UADDW    = NEON_SADDW | NEON3SameUBit,
1584   NEON_UADDW2   = NEON_UADDW | NEON_Q,
1585   NEON_UMLAL    = NEON_SMLAL | NEON3SameUBit,
1586   NEON_UMLAL2   = NEON_UMLAL | NEON_Q,
1587   NEON_UMLSL    = NEON_SMLSL | NEON3SameUBit,
1588   NEON_UMLSL2   = NEON_UMLSL | NEON_Q,
1589   NEON_UMULL    = NEON_SMULL | NEON3SameUBit,
1590   NEON_UMULL2   = NEON_UMULL | NEON_Q,
1591   NEON_USUBL    = NEON_SSUBL | NEON3SameUBit,
1592   NEON_USUBL2   = NEON_USUBL | NEON_Q,
1593   NEON_USUBW    = NEON_SSUBW | NEON3SameUBit,
1594   NEON_USUBW2   = NEON_USUBW | NEON_Q
1595 };
1596 
1597 // NEON instructions operating across vectors.
1598 enum NEONAcrossLanesOp {
1599   NEONAcrossLanesFixed = 0x0E300800,
1600   NEONAcrossLanesFMask = 0x9F3E0C00,
1601   NEONAcrossLanesMask  = 0xBF3FFC00,
1602   NEON_ADDV   = NEONAcrossLanesFixed | 0x0001B000,
1603   NEON_SADDLV = NEONAcrossLanesFixed | 0x00003000,
1604   NEON_UADDLV = NEONAcrossLanesFixed | 0x20003000,
1605   NEON_SMAXV  = NEONAcrossLanesFixed | 0x0000A000,
1606   NEON_SMINV  = NEONAcrossLanesFixed | 0x0001A000,
1607   NEON_UMAXV  = NEONAcrossLanesFixed | 0x2000A000,
1608   NEON_UMINV  = NEONAcrossLanesFixed | 0x2001A000,
1609 
1610   // NEON floating point across instructions.
1611   NEONAcrossLanesFPFixed = NEONAcrossLanesFixed | 0x0000C000,
1612   NEONAcrossLanesFPFMask = NEONAcrossLanesFMask | 0x0000C000,
1613   NEONAcrossLanesFPMask  = NEONAcrossLanesMask  | 0x00800000,
1614 
1615   NEON_FMAXV   = NEONAcrossLanesFPFixed | 0x2000F000,
1616   NEON_FMINV   = NEONAcrossLanesFPFixed | 0x2080F000,
1617   NEON_FMAXNMV = NEONAcrossLanesFPFixed | 0x2000C000,
1618   NEON_FMINNMV = NEONAcrossLanesFPFixed | 0x2080C000
1619 };
1620 
1621 // NEON instructions with indexed element operand.
1622 enum NEONByIndexedElementOp {
1623   NEONByIndexedElementFixed = 0x0F000000,
1624   NEONByIndexedElementFMask = 0x9F000400,
1625   NEONByIndexedElementMask  = 0xBF00F400,
1626   NEON_MUL_byelement   = NEONByIndexedElementFixed | 0x00008000,
1627   NEON_MLA_byelement   = NEONByIndexedElementFixed | 0x20000000,
1628   NEON_MLS_byelement   = NEONByIndexedElementFixed | 0x20004000,
1629   NEON_SMULL_byelement = NEONByIndexedElementFixed | 0x0000A000,
1630   NEON_SMLAL_byelement = NEONByIndexedElementFixed | 0x00002000,
1631   NEON_SMLSL_byelement = NEONByIndexedElementFixed | 0x00006000,
1632   NEON_UMULL_byelement = NEONByIndexedElementFixed | 0x2000A000,
1633   NEON_UMLAL_byelement = NEONByIndexedElementFixed | 0x20002000,
1634   NEON_UMLSL_byelement = NEONByIndexedElementFixed | 0x20006000,
1635   NEON_SQDMULL_byelement = NEONByIndexedElementFixed | 0x0000B000,
1636   NEON_SQDMLAL_byelement = NEONByIndexedElementFixed | 0x00003000,
1637   NEON_SQDMLSL_byelement = NEONByIndexedElementFixed | 0x00007000,
1638   NEON_SQDMULH_byelement  = NEONByIndexedElementFixed | 0x0000C000,
1639   NEON_SQRDMULH_byelement = NEONByIndexedElementFixed | 0x0000D000,
1640 
1641   // Floating point instructions.
1642   NEONByIndexedElementFPFixed = NEONByIndexedElementFixed | 0x00800000,
1643   NEONByIndexedElementFPMask = NEONByIndexedElementMask | 0x00800000,
1644   NEON_FMLA_byelement  = NEONByIndexedElementFPFixed | 0x00001000,
1645   NEON_FMLS_byelement  = NEONByIndexedElementFPFixed | 0x00005000,
1646   NEON_FMUL_byelement  = NEONByIndexedElementFPFixed | 0x00009000,
1647   NEON_FMULX_byelement = NEONByIndexedElementFPFixed | 0x20009000
1648 };
1649 
1650 // NEON register copy.
1651 enum NEONCopyOp {
1652   NEONCopyFixed = 0x0E000400,
1653   NEONCopyFMask = 0x9FE08400,
1654   NEONCopyMask  = 0x3FE08400,
1655   NEONCopyInsElementMask = NEONCopyMask | 0x40000000,
1656   NEONCopyInsGeneralMask = NEONCopyMask | 0x40007800,
1657   NEONCopyDupElementMask = NEONCopyMask | 0x20007800,
1658   NEONCopyDupGeneralMask = NEONCopyDupElementMask,
1659   NEONCopyUmovMask       = NEONCopyMask | 0x20007800,
1660   NEONCopySmovMask       = NEONCopyMask | 0x20007800,
1661   NEON_INS_ELEMENT       = NEONCopyFixed | 0x60000000,
1662   NEON_INS_GENERAL       = NEONCopyFixed | 0x40001800,
1663   NEON_DUP_ELEMENT       = NEONCopyFixed | 0x00000000,
1664   NEON_DUP_GENERAL       = NEONCopyFixed | 0x00000800,
1665   NEON_SMOV              = NEONCopyFixed | 0x00002800,
1666   NEON_UMOV              = NEONCopyFixed | 0x00003800
1667 };
1668 
1669 // NEON extract.
1670 enum NEONExtractOp {
1671   NEONExtractFixed = 0x2E000000,
1672   NEONExtractFMask = 0xBF208400,
1673   NEONExtractMask =  0xBFE08400,
1674   NEON_EXT = NEONExtractFixed | 0x00000000
1675 };
1676 
1677 enum NEONLoadStoreMultiOp {
1678   NEONLoadStoreMultiL    = 0x00400000,
1679   NEONLoadStoreMulti1_1v = 0x00007000,
1680   NEONLoadStoreMulti1_2v = 0x0000A000,
1681   NEONLoadStoreMulti1_3v = 0x00006000,
1682   NEONLoadStoreMulti1_4v = 0x00002000,
1683   NEONLoadStoreMulti2    = 0x00008000,
1684   NEONLoadStoreMulti3    = 0x00004000,
1685   NEONLoadStoreMulti4    = 0x00000000
1686 };
1687 
1688 // NEON load/store multiple structures.
1689 enum NEONLoadStoreMultiStructOp {
1690   NEONLoadStoreMultiStructFixed = 0x0C000000,
1691   NEONLoadStoreMultiStructFMask = 0xBFBF0000,
1692   NEONLoadStoreMultiStructMask  = 0xBFFFF000,
1693   NEONLoadStoreMultiStructStore = NEONLoadStoreMultiStructFixed,
1694   NEONLoadStoreMultiStructLoad  = NEONLoadStoreMultiStructFixed |
1695                                   NEONLoadStoreMultiL,
1696   NEON_LD1_1v = NEONLoadStoreMultiStructLoad | NEONLoadStoreMulti1_1v,
1697   NEON_LD1_2v = NEONLoadStoreMultiStructLoad | NEONLoadStoreMulti1_2v,
1698   NEON_LD1_3v = NEONLoadStoreMultiStructLoad | NEONLoadStoreMulti1_3v,
1699   NEON_LD1_4v = NEONLoadStoreMultiStructLoad | NEONLoadStoreMulti1_4v,
1700   NEON_LD2    = NEONLoadStoreMultiStructLoad | NEONLoadStoreMulti2,
1701   NEON_LD3    = NEONLoadStoreMultiStructLoad | NEONLoadStoreMulti3,
1702   NEON_LD4    = NEONLoadStoreMultiStructLoad | NEONLoadStoreMulti4,
1703   NEON_ST1_1v = NEONLoadStoreMultiStructStore | NEONLoadStoreMulti1_1v,
1704   NEON_ST1_2v = NEONLoadStoreMultiStructStore | NEONLoadStoreMulti1_2v,
1705   NEON_ST1_3v = NEONLoadStoreMultiStructStore | NEONLoadStoreMulti1_3v,
1706   NEON_ST1_4v = NEONLoadStoreMultiStructStore | NEONLoadStoreMulti1_4v,
1707   NEON_ST2    = NEONLoadStoreMultiStructStore | NEONLoadStoreMulti2,
1708   NEON_ST3    = NEONLoadStoreMultiStructStore | NEONLoadStoreMulti3,
1709   NEON_ST4    = NEONLoadStoreMultiStructStore | NEONLoadStoreMulti4
1710 };
1711 
1712 // NEON load/store multiple structures with post-index addressing.
1713 enum NEONLoadStoreMultiStructPostIndexOp {
1714   NEONLoadStoreMultiStructPostIndexFixed = 0x0C800000,
1715   NEONLoadStoreMultiStructPostIndexFMask = 0xBFA00000,
1716   NEONLoadStoreMultiStructPostIndexMask  = 0xBFE0F000,
1717   NEONLoadStoreMultiStructPostIndex = 0x00800000,
1718   NEON_LD1_1v_post = NEON_LD1_1v | NEONLoadStoreMultiStructPostIndex,
1719   NEON_LD1_2v_post = NEON_LD1_2v | NEONLoadStoreMultiStructPostIndex,
1720   NEON_LD1_3v_post = NEON_LD1_3v | NEONLoadStoreMultiStructPostIndex,
1721   NEON_LD1_4v_post = NEON_LD1_4v | NEONLoadStoreMultiStructPostIndex,
1722   NEON_LD2_post = NEON_LD2 | NEONLoadStoreMultiStructPostIndex,
1723   NEON_LD3_post = NEON_LD3 | NEONLoadStoreMultiStructPostIndex,
1724   NEON_LD4_post = NEON_LD4 | NEONLoadStoreMultiStructPostIndex,
1725   NEON_ST1_1v_post = NEON_ST1_1v | NEONLoadStoreMultiStructPostIndex,
1726   NEON_ST1_2v_post = NEON_ST1_2v | NEONLoadStoreMultiStructPostIndex,
1727   NEON_ST1_3v_post = NEON_ST1_3v | NEONLoadStoreMultiStructPostIndex,
1728   NEON_ST1_4v_post = NEON_ST1_4v | NEONLoadStoreMultiStructPostIndex,
1729   NEON_ST2_post = NEON_ST2 | NEONLoadStoreMultiStructPostIndex,
1730   NEON_ST3_post = NEON_ST3 | NEONLoadStoreMultiStructPostIndex,
1731   NEON_ST4_post = NEON_ST4 | NEONLoadStoreMultiStructPostIndex
1732 };
1733 
1734 enum NEONLoadStoreSingleOp {
1735   NEONLoadStoreSingle1        = 0x00000000,
1736   NEONLoadStoreSingle2        = 0x00200000,
1737   NEONLoadStoreSingle3        = 0x00002000,
1738   NEONLoadStoreSingle4        = 0x00202000,
1739   NEONLoadStoreSingleL        = 0x00400000,
1740   NEONLoadStoreSingle_b       = 0x00000000,
1741   NEONLoadStoreSingle_h       = 0x00004000,
1742   NEONLoadStoreSingle_s       = 0x00008000,
1743   NEONLoadStoreSingle_d       = 0x00008400,
1744   NEONLoadStoreSingleAllLanes = 0x0000C000,
1745   NEONLoadStoreSingleLenMask  = 0x00202000
1746 };
1747 
1748 // NEON load/store single structure.
1749 enum NEONLoadStoreSingleStructOp {
1750   NEONLoadStoreSingleStructFixed = 0x0D000000,
1751   NEONLoadStoreSingleStructFMask = 0xBF9F0000,
1752   NEONLoadStoreSingleStructMask  = 0xBFFFE000,
1753   NEONLoadStoreSingleStructStore = NEONLoadStoreSingleStructFixed,
1754   NEONLoadStoreSingleStructLoad  = NEONLoadStoreSingleStructFixed |
1755                                    NEONLoadStoreSingleL,
1756   NEONLoadStoreSingleStructLoad1 = NEONLoadStoreSingle1 |
1757                                    NEONLoadStoreSingleStructLoad,
1758   NEONLoadStoreSingleStructLoad2 = NEONLoadStoreSingle2 |
1759                                    NEONLoadStoreSingleStructLoad,
1760   NEONLoadStoreSingleStructLoad3 = NEONLoadStoreSingle3 |
1761                                    NEONLoadStoreSingleStructLoad,
1762   NEONLoadStoreSingleStructLoad4 = NEONLoadStoreSingle4 |
1763                                    NEONLoadStoreSingleStructLoad,
1764   NEONLoadStoreSingleStructStore1 = NEONLoadStoreSingle1 |
1765                                     NEONLoadStoreSingleStructFixed,
1766   NEONLoadStoreSingleStructStore2 = NEONLoadStoreSingle2 |
1767                                     NEONLoadStoreSingleStructFixed,
1768   NEONLoadStoreSingleStructStore3 = NEONLoadStoreSingle3 |
1769                                     NEONLoadStoreSingleStructFixed,
1770   NEONLoadStoreSingleStructStore4 = NEONLoadStoreSingle4 |
1771                                     NEONLoadStoreSingleStructFixed,
1772   NEON_LD1_b = NEONLoadStoreSingleStructLoad1 | NEONLoadStoreSingle_b,
1773   NEON_LD1_h = NEONLoadStoreSingleStructLoad1 | NEONLoadStoreSingle_h,
1774   NEON_LD1_s = NEONLoadStoreSingleStructLoad1 | NEONLoadStoreSingle_s,
1775   NEON_LD1_d = NEONLoadStoreSingleStructLoad1 | NEONLoadStoreSingle_d,
1776   NEON_LD1R  = NEONLoadStoreSingleStructLoad1 | NEONLoadStoreSingleAllLanes,
1777   NEON_ST1_b = NEONLoadStoreSingleStructStore1 | NEONLoadStoreSingle_b,
1778   NEON_ST1_h = NEONLoadStoreSingleStructStore1 | NEONLoadStoreSingle_h,
1779   NEON_ST1_s = NEONLoadStoreSingleStructStore1 | NEONLoadStoreSingle_s,
1780   NEON_ST1_d = NEONLoadStoreSingleStructStore1 | NEONLoadStoreSingle_d,
1781 
1782   NEON_LD2_b = NEONLoadStoreSingleStructLoad2 | NEONLoadStoreSingle_b,
1783   NEON_LD2_h = NEONLoadStoreSingleStructLoad2 | NEONLoadStoreSingle_h,
1784   NEON_LD2_s = NEONLoadStoreSingleStructLoad2 | NEONLoadStoreSingle_s,
1785   NEON_LD2_d = NEONLoadStoreSingleStructLoad2 | NEONLoadStoreSingle_d,
1786   NEON_LD2R  = NEONLoadStoreSingleStructLoad2 | NEONLoadStoreSingleAllLanes,
1787   NEON_ST2_b = NEONLoadStoreSingleStructStore2 | NEONLoadStoreSingle_b,
1788   NEON_ST2_h = NEONLoadStoreSingleStructStore2 | NEONLoadStoreSingle_h,
1789   NEON_ST2_s = NEONLoadStoreSingleStructStore2 | NEONLoadStoreSingle_s,
1790   NEON_ST2_d = NEONLoadStoreSingleStructStore2 | NEONLoadStoreSingle_d,
1791 
1792   NEON_LD3_b = NEONLoadStoreSingleStructLoad3 | NEONLoadStoreSingle_b,
1793   NEON_LD3_h = NEONLoadStoreSingleStructLoad3 | NEONLoadStoreSingle_h,
1794   NEON_LD3_s = NEONLoadStoreSingleStructLoad3 | NEONLoadStoreSingle_s,
1795   NEON_LD3_d = NEONLoadStoreSingleStructLoad3 | NEONLoadStoreSingle_d,
1796   NEON_LD3R  = NEONLoadStoreSingleStructLoad3 | NEONLoadStoreSingleAllLanes,
1797   NEON_ST3_b = NEONLoadStoreSingleStructStore3 | NEONLoadStoreSingle_b,
1798   NEON_ST3_h = NEONLoadStoreSingleStructStore3 | NEONLoadStoreSingle_h,
1799   NEON_ST3_s = NEONLoadStoreSingleStructStore3 | NEONLoadStoreSingle_s,
1800   NEON_ST3_d = NEONLoadStoreSingleStructStore3 | NEONLoadStoreSingle_d,
1801 
1802   NEON_LD4_b = NEONLoadStoreSingleStructLoad4 | NEONLoadStoreSingle_b,
1803   NEON_LD4_h = NEONLoadStoreSingleStructLoad4 | NEONLoadStoreSingle_h,
1804   NEON_LD4_s = NEONLoadStoreSingleStructLoad4 | NEONLoadStoreSingle_s,
1805   NEON_LD4_d = NEONLoadStoreSingleStructLoad4 | NEONLoadStoreSingle_d,
1806   NEON_LD4R  = NEONLoadStoreSingleStructLoad4 | NEONLoadStoreSingleAllLanes,
1807   NEON_ST4_b = NEONLoadStoreSingleStructStore4 | NEONLoadStoreSingle_b,
1808   NEON_ST4_h = NEONLoadStoreSingleStructStore4 | NEONLoadStoreSingle_h,
1809   NEON_ST4_s = NEONLoadStoreSingleStructStore4 | NEONLoadStoreSingle_s,
1810   NEON_ST4_d = NEONLoadStoreSingleStructStore4 | NEONLoadStoreSingle_d
1811 };
1812 
1813 // NEON load/store single structure with post-index addressing.
1814 enum NEONLoadStoreSingleStructPostIndexOp {
1815   NEONLoadStoreSingleStructPostIndexFixed = 0x0D800000,
1816   NEONLoadStoreSingleStructPostIndexFMask = 0xBF800000,
1817   NEONLoadStoreSingleStructPostIndexMask  = 0xBFE0E000,
1818   NEONLoadStoreSingleStructPostIndex =      0x00800000,
1819   NEON_LD1_b_post = NEON_LD1_b | NEONLoadStoreSingleStructPostIndex,
1820   NEON_LD1_h_post = NEON_LD1_h | NEONLoadStoreSingleStructPostIndex,
1821   NEON_LD1_s_post = NEON_LD1_s | NEONLoadStoreSingleStructPostIndex,
1822   NEON_LD1_d_post = NEON_LD1_d | NEONLoadStoreSingleStructPostIndex,
1823   NEON_LD1R_post  = NEON_LD1R | NEONLoadStoreSingleStructPostIndex,
1824   NEON_ST1_b_post = NEON_ST1_b | NEONLoadStoreSingleStructPostIndex,
1825   NEON_ST1_h_post = NEON_ST1_h | NEONLoadStoreSingleStructPostIndex,
1826   NEON_ST1_s_post = NEON_ST1_s | NEONLoadStoreSingleStructPostIndex,
1827   NEON_ST1_d_post = NEON_ST1_d | NEONLoadStoreSingleStructPostIndex,
1828 
1829   NEON_LD2_b_post = NEON_LD2_b | NEONLoadStoreSingleStructPostIndex,
1830   NEON_LD2_h_post = NEON_LD2_h | NEONLoadStoreSingleStructPostIndex,
1831   NEON_LD2_s_post = NEON_LD2_s | NEONLoadStoreSingleStructPostIndex,
1832   NEON_LD2_d_post = NEON_LD2_d | NEONLoadStoreSingleStructPostIndex,
1833   NEON_LD2R_post  = NEON_LD2R | NEONLoadStoreSingleStructPostIndex,
1834   NEON_ST2_b_post = NEON_ST2_b | NEONLoadStoreSingleStructPostIndex,
1835   NEON_ST2_h_post = NEON_ST2_h | NEONLoadStoreSingleStructPostIndex,
1836   NEON_ST2_s_post = NEON_ST2_s | NEONLoadStoreSingleStructPostIndex,
1837   NEON_ST2_d_post = NEON_ST2_d | NEONLoadStoreSingleStructPostIndex,
1838 
1839   NEON_LD3_b_post = NEON_LD3_b | NEONLoadStoreSingleStructPostIndex,
1840   NEON_LD3_h_post = NEON_LD3_h | NEONLoadStoreSingleStructPostIndex,
1841   NEON_LD3_s_post = NEON_LD3_s | NEONLoadStoreSingleStructPostIndex,
1842   NEON_LD3_d_post = NEON_LD3_d | NEONLoadStoreSingleStructPostIndex,
1843   NEON_LD3R_post  = NEON_LD3R | NEONLoadStoreSingleStructPostIndex,
1844   NEON_ST3_b_post = NEON_ST3_b | NEONLoadStoreSingleStructPostIndex,
1845   NEON_ST3_h_post = NEON_ST3_h | NEONLoadStoreSingleStructPostIndex,
1846   NEON_ST3_s_post = NEON_ST3_s | NEONLoadStoreSingleStructPostIndex,
1847   NEON_ST3_d_post = NEON_ST3_d | NEONLoadStoreSingleStructPostIndex,
1848 
1849   NEON_LD4_b_post = NEON_LD4_b | NEONLoadStoreSingleStructPostIndex,
1850   NEON_LD4_h_post = NEON_LD4_h | NEONLoadStoreSingleStructPostIndex,
1851   NEON_LD4_s_post = NEON_LD4_s | NEONLoadStoreSingleStructPostIndex,
1852   NEON_LD4_d_post = NEON_LD4_d | NEONLoadStoreSingleStructPostIndex,
1853   NEON_LD4R_post  = NEON_LD4R | NEONLoadStoreSingleStructPostIndex,
1854   NEON_ST4_b_post = NEON_ST4_b | NEONLoadStoreSingleStructPostIndex,
1855   NEON_ST4_h_post = NEON_ST4_h | NEONLoadStoreSingleStructPostIndex,
1856   NEON_ST4_s_post = NEON_ST4_s | NEONLoadStoreSingleStructPostIndex,
1857   NEON_ST4_d_post = NEON_ST4_d | NEONLoadStoreSingleStructPostIndex
1858 };
1859 
1860 // NEON modified immediate.
1861 enum NEONModifiedImmediateOp {
1862   NEONModifiedImmediateFixed = 0x0F000400,
1863   NEONModifiedImmediateFMask = 0x9FF80400,
1864   NEONModifiedImmediateOpBit = 0x20000000,
1865   NEONModifiedImmediate_MOVI = NEONModifiedImmediateFixed | 0x00000000,
1866   NEONModifiedImmediate_MVNI = NEONModifiedImmediateFixed | 0x20000000,
1867   NEONModifiedImmediate_ORR  = NEONModifiedImmediateFixed | 0x00001000,
1868   NEONModifiedImmediate_BIC  = NEONModifiedImmediateFixed | 0x20001000
1869 };
1870 
1871 // NEON shift immediate.
1872 enum NEONShiftImmediateOp {
1873   NEONShiftImmediateFixed = 0x0F000400,
1874   NEONShiftImmediateFMask = 0x9F800400,
1875   NEONShiftImmediateMask  = 0xBF80FC00,
1876   NEONShiftImmediateUBit  = 0x20000000,
1877   NEON_SHL      = NEONShiftImmediateFixed | 0x00005000,
1878   NEON_SSHLL    = NEONShiftImmediateFixed | 0x0000A000,
1879   NEON_USHLL    = NEONShiftImmediateFixed | 0x2000A000,
1880   NEON_SLI      = NEONShiftImmediateFixed | 0x20005000,
1881   NEON_SRI      = NEONShiftImmediateFixed | 0x20004000,
1882   NEON_SHRN     = NEONShiftImmediateFixed | 0x00008000,
1883   NEON_RSHRN    = NEONShiftImmediateFixed | 0x00008800,
1884   NEON_UQSHRN   = NEONShiftImmediateFixed | 0x20009000,
1885   NEON_UQRSHRN  = NEONShiftImmediateFixed | 0x20009800,
1886   NEON_SQSHRN   = NEONShiftImmediateFixed | 0x00009000,
1887   NEON_SQRSHRN  = NEONShiftImmediateFixed | 0x00009800,
1888   NEON_SQSHRUN  = NEONShiftImmediateFixed | 0x20008000,
1889   NEON_SQRSHRUN = NEONShiftImmediateFixed | 0x20008800,
1890   NEON_SSHR     = NEONShiftImmediateFixed | 0x00000000,
1891   NEON_SRSHR    = NEONShiftImmediateFixed | 0x00002000,
1892   NEON_USHR     = NEONShiftImmediateFixed | 0x20000000,
1893   NEON_URSHR    = NEONShiftImmediateFixed | 0x20002000,
1894   NEON_SSRA     = NEONShiftImmediateFixed | 0x00001000,
1895   NEON_SRSRA    = NEONShiftImmediateFixed | 0x00003000,
1896   NEON_USRA     = NEONShiftImmediateFixed | 0x20001000,
1897   NEON_URSRA    = NEONShiftImmediateFixed | 0x20003000,
1898   NEON_SQSHLU   = NEONShiftImmediateFixed | 0x20006000,
1899   NEON_SCVTF_imm = NEONShiftImmediateFixed | 0x0000E000,
1900   NEON_UCVTF_imm = NEONShiftImmediateFixed | 0x2000E000,
1901   NEON_FCVTZS_imm = NEONShiftImmediateFixed | 0x0000F800,
1902   NEON_FCVTZU_imm = NEONShiftImmediateFixed | 0x2000F800,
1903   NEON_SQSHL_imm = NEONShiftImmediateFixed | 0x00007000,
1904   NEON_UQSHL_imm = NEONShiftImmediateFixed | 0x20007000
1905 };
1906 
1907 // NEON table.
1908 enum NEONTableOp {
1909   NEONTableFixed = 0x0E000000,
1910   NEONTableFMask = 0xBF208C00,
1911   NEONTableExt   = 0x00001000,
1912   NEONTableMask  = 0xBF20FC00,
1913   NEON_TBL_1v    = NEONTableFixed | 0x00000000,
1914   NEON_TBL_2v    = NEONTableFixed | 0x00002000,
1915   NEON_TBL_3v    = NEONTableFixed | 0x00004000,
1916   NEON_TBL_4v    = NEONTableFixed | 0x00006000,
1917   NEON_TBX_1v    = NEON_TBL_1v | NEONTableExt,
1918   NEON_TBX_2v    = NEON_TBL_2v | NEONTableExt,
1919   NEON_TBX_3v    = NEON_TBL_3v | NEONTableExt,
1920   NEON_TBX_4v    = NEON_TBL_4v | NEONTableExt
1921 };
1922 
1923 // NEON perm.
1924 enum NEONPermOp {
1925   NEONPermFixed = 0x0E000800,
1926   NEONPermFMask = 0xBF208C00,
1927   NEONPermMask  = 0x3F20FC00,
1928   NEON_UZP1 = NEONPermFixed | 0x00001000,
1929   NEON_TRN1 = NEONPermFixed | 0x00002000,
1930   NEON_ZIP1 = NEONPermFixed | 0x00003000,
1931   NEON_UZP2 = NEONPermFixed | 0x00005000,
1932   NEON_TRN2 = NEONPermFixed | 0x00006000,
1933   NEON_ZIP2 = NEONPermFixed | 0x00007000
1934 };
1935 
1936 // NEON scalar instructions with two register operands.
1937 enum NEONScalar2RegMiscOp {
1938   NEONScalar2RegMiscFixed = 0x5E200800,
1939   NEONScalar2RegMiscFMask = 0xDF3E0C00,
1940   NEONScalar2RegMiscMask = NEON_Q | NEONScalar | NEON2RegMiscMask,
1941   NEON_CMGT_zero_scalar = NEON_Q | NEONScalar | NEON_CMGT_zero,
1942   NEON_CMEQ_zero_scalar = NEON_Q | NEONScalar | NEON_CMEQ_zero,
1943   NEON_CMLT_zero_scalar = NEON_Q | NEONScalar | NEON_CMLT_zero,
1944   NEON_CMGE_zero_scalar = NEON_Q | NEONScalar | NEON_CMGE_zero,
1945   NEON_CMLE_zero_scalar = NEON_Q | NEONScalar | NEON_CMLE_zero,
1946   NEON_ABS_scalar       = NEON_Q | NEONScalar | NEON_ABS,
1947   NEON_SQABS_scalar     = NEON_Q | NEONScalar | NEON_SQABS,
1948   NEON_NEG_scalar       = NEON_Q | NEONScalar | NEON_NEG,
1949   NEON_SQNEG_scalar     = NEON_Q | NEONScalar | NEON_SQNEG,
1950   NEON_SQXTN_scalar     = NEON_Q | NEONScalar | NEON_SQXTN,
1951   NEON_UQXTN_scalar     = NEON_Q | NEONScalar | NEON_UQXTN,
1952   NEON_SQXTUN_scalar    = NEON_Q | NEONScalar | NEON_SQXTUN,
1953   NEON_SUQADD_scalar    = NEON_Q | NEONScalar | NEON_SUQADD,
1954   NEON_USQADD_scalar    = NEON_Q | NEONScalar | NEON_USQADD,
1955 
1956   NEONScalar2RegMiscOpcode = NEON2RegMiscOpcode,
1957   NEON_NEG_scalar_opcode = NEON_NEG_scalar & NEONScalar2RegMiscOpcode,
1958 
1959   NEONScalar2RegMiscFPMask  = NEONScalar2RegMiscMask | 0x00800000,
1960   NEON_FRSQRTE_scalar    = NEON_Q | NEONScalar | NEON_FRSQRTE,
1961   NEON_FRECPE_scalar     = NEON_Q | NEONScalar | NEON_FRECPE,
1962   NEON_SCVTF_scalar      = NEON_Q | NEONScalar | NEON_SCVTF,
1963   NEON_UCVTF_scalar      = NEON_Q | NEONScalar | NEON_UCVTF,
1964   NEON_FCMGT_zero_scalar = NEON_Q | NEONScalar | NEON_FCMGT_zero,
1965   NEON_FCMEQ_zero_scalar = NEON_Q | NEONScalar | NEON_FCMEQ_zero,
1966   NEON_FCMLT_zero_scalar = NEON_Q | NEONScalar | NEON_FCMLT_zero,
1967   NEON_FCMGE_zero_scalar = NEON_Q | NEONScalar | NEON_FCMGE_zero,
1968   NEON_FCMLE_zero_scalar = NEON_Q | NEONScalar | NEON_FCMLE_zero,
1969   NEON_FRECPX_scalar     = NEONScalar2RegMiscFixed | 0x0081F000,
1970   NEON_FCVTNS_scalar     = NEON_Q | NEONScalar | NEON_FCVTNS,
1971   NEON_FCVTNU_scalar     = NEON_Q | NEONScalar | NEON_FCVTNU,
1972   NEON_FCVTPS_scalar     = NEON_Q | NEONScalar | NEON_FCVTPS,
1973   NEON_FCVTPU_scalar     = NEON_Q | NEONScalar | NEON_FCVTPU,
1974   NEON_FCVTMS_scalar     = NEON_Q | NEONScalar | NEON_FCVTMS,
1975   NEON_FCVTMU_scalar     = NEON_Q | NEONScalar | NEON_FCVTMU,
1976   NEON_FCVTZS_scalar     = NEON_Q | NEONScalar | NEON_FCVTZS,
1977   NEON_FCVTZU_scalar     = NEON_Q | NEONScalar | NEON_FCVTZU,
1978   NEON_FCVTAS_scalar     = NEON_Q | NEONScalar | NEON_FCVTAS,
1979   NEON_FCVTAU_scalar     = NEON_Q | NEONScalar | NEON_FCVTAU,
1980   NEON_FCVTXN_scalar     = NEON_Q | NEONScalar | NEON_FCVTXN
1981 };
1982 
1983 // NEON scalar instructions with three same-type operands.
1984 enum NEONScalar3SameOp {
1985   NEONScalar3SameFixed = 0x5E200400,
1986   NEONScalar3SameFMask = 0xDF200400,
1987   NEONScalar3SameMask  = 0xFF20FC00,
1988   NEON_ADD_scalar    = NEON_Q | NEONScalar | NEON_ADD,
1989   NEON_CMEQ_scalar   = NEON_Q | NEONScalar | NEON_CMEQ,
1990   NEON_CMGE_scalar   = NEON_Q | NEONScalar | NEON_CMGE,
1991   NEON_CMGT_scalar   = NEON_Q | NEONScalar | NEON_CMGT,
1992   NEON_CMHI_scalar   = NEON_Q | NEONScalar | NEON_CMHI,
1993   NEON_CMHS_scalar   = NEON_Q | NEONScalar | NEON_CMHS,
1994   NEON_CMTST_scalar  = NEON_Q | NEONScalar | NEON_CMTST,
1995   NEON_SUB_scalar    = NEON_Q | NEONScalar | NEON_SUB,
1996   NEON_UQADD_scalar  = NEON_Q | NEONScalar | NEON_UQADD,
1997   NEON_SQADD_scalar  = NEON_Q | NEONScalar | NEON_SQADD,
1998   NEON_UQSUB_scalar  = NEON_Q | NEONScalar | NEON_UQSUB,
1999   NEON_SQSUB_scalar  = NEON_Q | NEONScalar | NEON_SQSUB,
2000   NEON_USHL_scalar   = NEON_Q | NEONScalar | NEON_USHL,
2001   NEON_SSHL_scalar   = NEON_Q | NEONScalar | NEON_SSHL,
2002   NEON_UQSHL_scalar  = NEON_Q | NEONScalar | NEON_UQSHL,
2003   NEON_SQSHL_scalar  = NEON_Q | NEONScalar | NEON_SQSHL,
2004   NEON_URSHL_scalar  = NEON_Q | NEONScalar | NEON_URSHL,
2005   NEON_SRSHL_scalar  = NEON_Q | NEONScalar | NEON_SRSHL,
2006   NEON_UQRSHL_scalar = NEON_Q | NEONScalar | NEON_UQRSHL,
2007   NEON_SQRSHL_scalar = NEON_Q | NEONScalar | NEON_SQRSHL,
2008   NEON_SQDMULH_scalar = NEON_Q | NEONScalar | NEON_SQDMULH,
2009   NEON_SQRDMULH_scalar = NEON_Q | NEONScalar | NEON_SQRDMULH,
2010 
2011   // NEON floating point scalar instructions with three same-type operands.
2012   NEONScalar3SameFPFixed = NEONScalar3SameFixed | 0x0000C000,
2013   NEONScalar3SameFPFMask = NEONScalar3SameFMask | 0x0000C000,
2014   NEONScalar3SameFPMask  = NEONScalar3SameMask | 0x00800000,
2015   NEON_FACGE_scalar   = NEON_Q | NEONScalar | NEON_FACGE,
2016   NEON_FACGT_scalar   = NEON_Q | NEONScalar | NEON_FACGT,
2017   NEON_FCMEQ_scalar   = NEON_Q | NEONScalar | NEON_FCMEQ,
2018   NEON_FCMGE_scalar   = NEON_Q | NEONScalar | NEON_FCMGE,
2019   NEON_FCMGT_scalar   = NEON_Q | NEONScalar | NEON_FCMGT,
2020   NEON_FMULX_scalar   = NEON_Q | NEONScalar | NEON_FMULX,
2021   NEON_FRECPS_scalar  = NEON_Q | NEONScalar | NEON_FRECPS,
2022   NEON_FRSQRTS_scalar = NEON_Q | NEONScalar | NEON_FRSQRTS,
2023   NEON_FABD_scalar    = NEON_Q | NEONScalar | NEON_FABD
2024 };
2025 
2026 // NEON scalar instructions with three different-type operands.
2027 enum NEONScalar3DiffOp {
2028   NEONScalar3DiffFixed = 0x5E200000,
2029   NEONScalar3DiffFMask = 0xDF200C00,
2030   NEONScalar3DiffMask  = NEON_Q | NEONScalar | NEON3DifferentMask,
2031   NEON_SQDMLAL_scalar  = NEON_Q | NEONScalar | NEON_SQDMLAL,
2032   NEON_SQDMLSL_scalar  = NEON_Q | NEONScalar | NEON_SQDMLSL,
2033   NEON_SQDMULL_scalar  = NEON_Q | NEONScalar | NEON_SQDMULL
2034 };
2035 
2036 // NEON scalar instructions with indexed element operand.
2037 enum NEONScalarByIndexedElementOp {
2038   NEONScalarByIndexedElementFixed = 0x5F000000,
2039   NEONScalarByIndexedElementFMask = 0xDF000400,
2040   NEONScalarByIndexedElementMask  = 0xFF00F400,
2041   NEON_SQDMLAL_byelement_scalar  = NEON_Q | NEONScalar | NEON_SQDMLAL_byelement,
2042   NEON_SQDMLSL_byelement_scalar  = NEON_Q | NEONScalar | NEON_SQDMLSL_byelement,
2043   NEON_SQDMULL_byelement_scalar  = NEON_Q | NEONScalar | NEON_SQDMULL_byelement,
2044   NEON_SQDMULH_byelement_scalar  = NEON_Q | NEONScalar | NEON_SQDMULH_byelement,
2045   NEON_SQRDMULH_byelement_scalar
2046     = NEON_Q | NEONScalar | NEON_SQRDMULH_byelement,
2047 
2048   // Floating point instructions.
2049   NEONScalarByIndexedElementFPFixed
2050     = NEONScalarByIndexedElementFixed | 0x00800000,
2051   NEONScalarByIndexedElementFPMask
2052     = NEONScalarByIndexedElementMask | 0x00800000,
2053   NEON_FMLA_byelement_scalar  = NEON_Q | NEONScalar | NEON_FMLA_byelement,
2054   NEON_FMLS_byelement_scalar  = NEON_Q | NEONScalar | NEON_FMLS_byelement,
2055   NEON_FMUL_byelement_scalar  = NEON_Q | NEONScalar | NEON_FMUL_byelement,
2056   NEON_FMULX_byelement_scalar = NEON_Q | NEONScalar | NEON_FMULX_byelement
2057 };
2058 
2059 // NEON scalar register copy.
2060 enum NEONScalarCopyOp {
2061   NEONScalarCopyFixed = 0x5E000400,
2062   NEONScalarCopyFMask = 0xDFE08400,
2063   NEONScalarCopyMask  = 0xFFE0FC00,
2064   NEON_DUP_ELEMENT_scalar = NEON_Q | NEONScalar | NEON_DUP_ELEMENT
2065 };
2066 
2067 // NEON scalar pairwise instructions.
2068 enum NEONScalarPairwiseOp {
2069   NEONScalarPairwiseFixed = 0x5E300800,
2070   NEONScalarPairwiseFMask = 0xDF3E0C00,
2071   NEONScalarPairwiseMask  = 0xFFB1F800,
2072   NEON_ADDP_scalar    = NEONScalarPairwiseFixed | 0x0081B000,
2073   NEON_FMAXNMP_scalar = NEONScalarPairwiseFixed | 0x2000C000,
2074   NEON_FMINNMP_scalar = NEONScalarPairwiseFixed | 0x2080C000,
2075   NEON_FADDP_scalar   = NEONScalarPairwiseFixed | 0x2000D000,
2076   NEON_FMAXP_scalar   = NEONScalarPairwiseFixed | 0x2000F000,
2077   NEON_FMINP_scalar   = NEONScalarPairwiseFixed | 0x2080F000
2078 };
2079 
2080 // NEON scalar shift immediate.
2081 enum NEONScalarShiftImmediateOp {
2082   NEONScalarShiftImmediateFixed = 0x5F000400,
2083   NEONScalarShiftImmediateFMask = 0xDF800400,
2084   NEONScalarShiftImmediateMask  = 0xFF80FC00,
2085   NEON_SHL_scalar  =       NEON_Q | NEONScalar | NEON_SHL,
2086   NEON_SLI_scalar  =       NEON_Q | NEONScalar | NEON_SLI,
2087   NEON_SRI_scalar  =       NEON_Q | NEONScalar | NEON_SRI,
2088   NEON_SSHR_scalar =       NEON_Q | NEONScalar | NEON_SSHR,
2089   NEON_USHR_scalar =       NEON_Q | NEONScalar | NEON_USHR,
2090   NEON_SRSHR_scalar =      NEON_Q | NEONScalar | NEON_SRSHR,
2091   NEON_URSHR_scalar =      NEON_Q | NEONScalar | NEON_URSHR,
2092   NEON_SSRA_scalar =       NEON_Q | NEONScalar | NEON_SSRA,
2093   NEON_USRA_scalar =       NEON_Q | NEONScalar | NEON_USRA,
2094   NEON_SRSRA_scalar =      NEON_Q | NEONScalar | NEON_SRSRA,
2095   NEON_URSRA_scalar =      NEON_Q | NEONScalar | NEON_URSRA,
2096   NEON_UQSHRN_scalar =     NEON_Q | NEONScalar | NEON_UQSHRN,
2097   NEON_UQRSHRN_scalar =    NEON_Q | NEONScalar | NEON_UQRSHRN,
2098   NEON_SQSHRN_scalar =     NEON_Q | NEONScalar | NEON_SQSHRN,
2099   NEON_SQRSHRN_scalar =    NEON_Q | NEONScalar | NEON_SQRSHRN,
2100   NEON_SQSHRUN_scalar =    NEON_Q | NEONScalar | NEON_SQSHRUN,
2101   NEON_SQRSHRUN_scalar =   NEON_Q | NEONScalar | NEON_SQRSHRUN,
2102   NEON_SQSHLU_scalar =     NEON_Q | NEONScalar | NEON_SQSHLU,
2103   NEON_SQSHL_imm_scalar  = NEON_Q | NEONScalar | NEON_SQSHL_imm,
2104   NEON_UQSHL_imm_scalar  = NEON_Q | NEONScalar | NEON_UQSHL_imm,
2105   NEON_SCVTF_imm_scalar =  NEON_Q | NEONScalar | NEON_SCVTF_imm,
2106   NEON_UCVTF_imm_scalar =  NEON_Q | NEONScalar | NEON_UCVTF_imm,
2107   NEON_FCVTZS_imm_scalar = NEON_Q | NEONScalar | NEON_FCVTZS_imm,
2108   NEON_FCVTZU_imm_scalar = NEON_Q | NEONScalar | NEON_FCVTZU_imm
2109 };
2110 
2111 // Unimplemented and unallocated instructions. These are defined to make fixed
2112 // bit assertion easier.
2113 enum UnimplementedOp {
2114   UnimplementedFixed = 0x00000000,
2115   UnimplementedFMask = 0x00000000
2116 };
2117 
2118 enum UnallocatedOp {
2119   UnallocatedFixed = 0x00000000,
2120   UnallocatedFMask = 0x00000000
2121 };
2122 
2123 // Re-enable `clang-format` after the `enum`s.
2124 // clang-format on
2125 
2126 }  // namespace aarch64
2127 }  // namespace vixl
2128 
2129 #endif  // VIXL_AARCH64_CONSTANTS_AARCH64_H_
2130