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1 // Copyright 2013 the V8 project authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
5 #ifndef V8_ARM64_CONSTANTS_ARM64_H_
6 #define V8_ARM64_CONSTANTS_ARM64_H_
7 
8 #include "src/base/macros.h"
9 #include "src/globals.h"
10 
11 // Assert that this is an LP64 system.
12 STATIC_ASSERT(sizeof(int) == sizeof(int32_t));
13 STATIC_ASSERT(sizeof(long) == sizeof(int64_t));    // NOLINT(runtime/int)
14 STATIC_ASSERT(sizeof(void *) == sizeof(int64_t));
15 STATIC_ASSERT(sizeof(1) == sizeof(int32_t));
16 STATIC_ASSERT(sizeof(1L) == sizeof(int64_t));
17 
18 
19 // Get the standard printf format macros for C99 stdint types.
20 #ifndef __STDC_FORMAT_MACROS
21 #define __STDC_FORMAT_MACROS
22 #endif
23 #include <inttypes.h>
24 
25 
26 namespace v8 {
27 namespace internal {
28 
29 constexpr size_t kMaxPCRelativeCodeRangeInMB = 128;
30 
31 constexpr uint8_t kInstrSize = 4;
32 constexpr uint8_t kInstrSizeLog2 = 2;
33 constexpr size_t kLoadLiteralScaleLog2 = 2;
34 constexpr size_t kMaxLoadLiteralRange = 1 * MB;
35 
36 const int kNumberOfRegisters = 32;
37 const int kNumberOfVRegisters = 32;
38 // Callee saved registers are x19-x30(lr).
39 const int kNumberOfCalleeSavedRegisters = 11;
40 const int kFirstCalleeSavedRegisterIndex = 19;
41 // Callee saved FP registers are d8-d15.
42 const int kNumberOfCalleeSavedVRegisters = 8;
43 const int kFirstCalleeSavedVRegisterIndex = 8;
44 // Callee saved registers with no specific purpose in JS are x19-x25.
45 const size_t kJSCalleeSavedRegList = 0x03f80000;
46 const int kWRegSizeInBits = 32;
47 const int kWRegSizeInBitsLog2 = 5;
48 const int kWRegSize = kWRegSizeInBits >> 3;
49 const int kWRegSizeLog2 = kWRegSizeInBitsLog2 - 3;
50 const int kXRegSizeInBits = 64;
51 const int kXRegSizeInBitsLog2 = 6;
52 const int kXRegSize = kXRegSizeInBits >> 3;
53 const int kXRegSizeLog2 = kXRegSizeInBitsLog2 - 3;
54 const int kSRegSizeInBits = 32;
55 const int kSRegSizeInBitsLog2 = 5;
56 const int kSRegSize = kSRegSizeInBits >> 3;
57 const int kSRegSizeLog2 = kSRegSizeInBitsLog2 - 3;
58 const int kDRegSizeInBits = 64;
59 const int kDRegSizeInBitsLog2 = 6;
60 const int kDRegSize = kDRegSizeInBits >> 3;
61 const int kDRegSizeLog2 = kDRegSizeInBitsLog2 - 3;
62 const int kDRegSizeInBytesLog2 = kDRegSizeInBitsLog2 - 3;
63 const int kBRegSizeInBits = 8;
64 const int kBRegSize = kBRegSizeInBits >> 3;
65 const int kHRegSizeInBits = 16;
66 const int kHRegSize = kHRegSizeInBits >> 3;
67 const int kQRegSizeInBits = 128;
68 const int kQRegSizeInBitsLog2 = 7;
69 const int kQRegSize = kQRegSizeInBits >> 3;
70 const int kQRegSizeLog2 = kQRegSizeInBitsLog2 - 3;
71 const int kVRegSizeInBits = kQRegSizeInBits;
72 const int kVRegSize = kVRegSizeInBits >> 3;
73 const int64_t kWRegMask = 0x00000000ffffffffL;
74 const int64_t kXRegMask = 0xffffffffffffffffL;
75 const int64_t kSRegMask = 0x00000000ffffffffL;
76 const int64_t kDRegMask = 0xffffffffffffffffL;
77 // TODO(all) check if the expression below works on all compilers or if it
78 // triggers an overflow error.
79 const int64_t kDSignBit = 63;
80 const int64_t kDSignMask = 0x1L << kDSignBit;
81 const int64_t kSSignBit = 31;
82 const int64_t kSSignMask = 0x1L << kSSignBit;
83 const int64_t kXSignBit = 63;
84 const int64_t kXSignMask = 0x1L << kXSignBit;
85 const int64_t kWSignBit = 31;
86 const int64_t kWSignMask = 0x1L << kWSignBit;
87 const int64_t kDQuietNanBit = 51;
88 const int64_t kDQuietNanMask = 0x1L << kDQuietNanBit;
89 const int64_t kSQuietNanBit = 22;
90 const int64_t kSQuietNanMask = 0x1L << kSQuietNanBit;
91 const int64_t kByteMask = 0xffL;
92 const int64_t kHalfWordMask = 0xffffL;
93 const int64_t kWordMask = 0xffffffffL;
94 const uint64_t kXMaxUInt = 0xffffffffffffffffUL;
95 const uint64_t kWMaxUInt = 0xffffffffUL;
96 const int64_t kXMaxInt = 0x7fffffffffffffffL;
97 const int64_t kXMinInt = 0x8000000000000000L;
98 const int32_t kWMaxInt = 0x7fffffff;
99 const int32_t kWMinInt = 0x80000000;
100 const int kIp0Code = 16;
101 const int kIp1Code = 17;
102 const int kFramePointerRegCode = 29;
103 const int kLinkRegCode = 30;
104 const int kZeroRegCode = 31;
105 const int kSPRegInternalCode = 63;
106 const unsigned kRegCodeMask = 0x1f;
107 const unsigned kShiftAmountWRegMask = 0x1f;
108 const unsigned kShiftAmountXRegMask = 0x3f;
109 // Standard machine types defined by AAPCS64.
110 const unsigned kByteSize = 8;
111 const unsigned kByteSizeInBytes = kByteSize >> 3;
112 const unsigned kHalfWordSize = 16;
113 const unsigned kHalfWordSizeLog2 = 4;
114 const unsigned kHalfWordSizeInBytes = kHalfWordSize >> 3;
115 const unsigned kHalfWordSizeInBytesLog2 = kHalfWordSizeLog2 - 3;
116 const unsigned kWordSize = 32;
117 const unsigned kWordSizeLog2 = 5;
118 const unsigned kWordSizeInBytes = kWordSize >> 3;
119 const unsigned kWordSizeInBytesLog2 = kWordSizeLog2 - 3;
120 const unsigned kDoubleWordSize = 64;
121 const unsigned kDoubleWordSizeInBytes = kDoubleWordSize >> 3;
122 const unsigned kQuadWordSize = 128;
123 const unsigned kQuadWordSizeInBytes = kQuadWordSize >> 3;
124 const int kMaxLanesPerVector = 16;
125 
126 const unsigned kAddressTagOffset = 56;
127 const unsigned kAddressTagWidth = 8;
128 const uint64_t kAddressTagMask = ((UINT64_C(1) << kAddressTagWidth) - 1)
129                                  << kAddressTagOffset;
130 static_assert(kAddressTagMask == UINT64_C(0xff00000000000000),
131               "AddressTagMask must represent most-significant eight bits.");
132 
133 // AArch64 floating-point specifics. These match IEEE-754.
134 const unsigned kDoubleMantissaBits = 52;
135 const unsigned kDoubleExponentBits = 11;
136 const unsigned kDoubleExponentBias = 1023;
137 const unsigned kFloatMantissaBits = 23;
138 const unsigned kFloatExponentBits = 8;
139 const unsigned kFloatExponentBias = 127;
140 const unsigned kFloat16MantissaBits = 10;
141 const unsigned kFloat16ExponentBits = 5;
142 const unsigned kFloat16ExponentBias = 15;
143 
144 // Actual value of root register is offset from the root array's start
145 // to take advantage of negative displacement values.
146 // TODO(sigurds): Choose best value.
147 constexpr int kRootRegisterBias = 256;
148 
149 typedef uint16_t float16;
150 
151 #define INSTRUCTION_FIELDS_LIST(V_)                     \
152   /* Register fields */                                 \
153   V_(Rd, 4, 0, Bits)    /* Destination register.     */ \
154   V_(Rn, 9, 5, Bits)    /* First source register.    */ \
155   V_(Rm, 20, 16, Bits)  /* Second source register.   */ \
156   V_(Ra, 14, 10, Bits)  /* Third source register.    */ \
157   V_(Rt, 4, 0, Bits)    /* Load dest / store source. */ \
158   V_(Rt2, 14, 10, Bits) /* Load second dest /        */ \
159                         /* store second source.      */ \
160   V_(Rs, 20, 16, Bits)  /* Store-exclusive status    */ \
161   V_(PrefetchMode, 4, 0, Bits)                          \
162                                                         \
163   /* Common bits */                                     \
164   V_(SixtyFourBits, 31, 31, Bits)                       \
165   V_(FlagsUpdate, 29, 29, Bits)                         \
166                                                         \
167   /* PC relative addressing */                          \
168   V_(ImmPCRelHi, 23, 5, SignedBits)                     \
169   V_(ImmPCRelLo, 30, 29, Bits)                          \
170                                                         \
171   /* Add/subtract/logical shift register */             \
172   V_(ShiftDP, 23, 22, Bits)                             \
173   V_(ImmDPShift, 15, 10, Bits)                          \
174                                                         \
175   /* Add/subtract immediate */                          \
176   V_(ImmAddSub, 21, 10, Bits)                           \
177   V_(ShiftAddSub, 23, 22, Bits)                         \
178                                                         \
179   /* Add/subtract extend */                             \
180   V_(ImmExtendShift, 12, 10, Bits)                      \
181   V_(ExtendMode, 15, 13, Bits)                          \
182                                                         \
183   /* Move wide */                                       \
184   V_(ImmMoveWide, 20, 5, Bits)                          \
185   V_(ShiftMoveWide, 22, 21, Bits)                       \
186                                                         \
187   /* Logical immediate, bitfield and extract */         \
188   V_(BitN, 22, 22, Bits)                                \
189   V_(ImmRotate, 21, 16, Bits)                           \
190   V_(ImmSetBits, 15, 10, Bits)                          \
191   V_(ImmR, 21, 16, Bits)                                \
192   V_(ImmS, 15, 10, Bits)                                \
193                                                         \
194   /* Test and branch immediate */                       \
195   V_(ImmTestBranch, 18, 5, SignedBits)                  \
196   V_(ImmTestBranchBit40, 23, 19, Bits)                  \
197   V_(ImmTestBranchBit5, 31, 31, Bits)                   \
198                                                         \
199   /* Conditionals */                                    \
200   V_(Condition, 15, 12, Bits)                           \
201   V_(ConditionBranch, 3, 0, Bits)                       \
202   V_(Nzcv, 3, 0, Bits)                                  \
203   V_(ImmCondCmp, 20, 16, Bits)                          \
204   V_(ImmCondBranch, 23, 5, SignedBits)                  \
205                                                         \
206   /* Floating point */                                  \
207   V_(FPType, 23, 22, Bits)                              \
208   V_(ImmFP, 20, 13, Bits)                               \
209   V_(FPScale, 15, 10, Bits)                             \
210                                                         \
211   /* Load Store */                                      \
212   V_(ImmLS, 20, 12, SignedBits)                         \
213   V_(ImmLSUnsigned, 21, 10, Bits)                       \
214   V_(ImmLSPair, 21, 15, SignedBits)                     \
215   V_(ImmShiftLS, 12, 12, Bits)                          \
216   V_(LSOpc, 23, 22, Bits)                               \
217   V_(LSVector, 26, 26, Bits)                            \
218   V_(LSSize, 31, 30, Bits)                              \
219                                                         \
220   /* NEON generic fields */                             \
221   V_(NEONQ, 30, 30, Bits)                               \
222   V_(NEONSize, 23, 22, Bits)                            \
223   V_(NEONLSSize, 11, 10, Bits)                          \
224   V_(NEONS, 12, 12, Bits)                               \
225   V_(NEONL, 21, 21, Bits)                               \
226   V_(NEONM, 20, 20, Bits)                               \
227   V_(NEONH, 11, 11, Bits)                               \
228   V_(ImmNEONExt, 14, 11, Bits)                          \
229   V_(ImmNEON5, 20, 16, Bits)                            \
230   V_(ImmNEON4, 14, 11, Bits)                            \
231                                                         \
232   /* Other immediates */                                \
233   V_(ImmUncondBranch, 25, 0, SignedBits)                \
234   V_(ImmCmpBranch, 23, 5, SignedBits)                   \
235   V_(ImmLLiteral, 23, 5, SignedBits)                    \
236   V_(ImmException, 20, 5, Bits)                         \
237   V_(ImmHint, 11, 5, Bits)                              \
238   V_(ImmBarrierDomain, 11, 10, Bits)                    \
239   V_(ImmBarrierType, 9, 8, Bits)                        \
240                                                         \
241   /* System (MRS, MSR) */                               \
242   V_(ImmSystemRegister, 19, 5, Bits)                    \
243   V_(SysO0, 19, 19, Bits)                               \
244   V_(SysOp1, 18, 16, Bits)                              \
245   V_(SysOp2, 7, 5, Bits)                                \
246   V_(CRn, 15, 12, Bits)                                 \
247   V_(CRm, 11, 8, Bits)                                  \
248                                                         \
249   /* Load-/store-exclusive */                           \
250   V_(LoadStoreXLoad, 22, 22, Bits)                      \
251   V_(LoadStoreXNotExclusive, 23, 23, Bits)              \
252   V_(LoadStoreXAcquireRelease, 15, 15, Bits)            \
253   V_(LoadStoreXSizeLog2, 31, 30, Bits)                  \
254   V_(LoadStoreXPair, 21, 21, Bits)                      \
255                                                         \
256   /* NEON load/store */                                 \
257   V_(NEONLoad, 22, 22, Bits)                            \
258                                                         \
259   /* NEON Modified Immediate fields */                  \
260   V_(ImmNEONabc, 18, 16, Bits)                          \
261   V_(ImmNEONdefgh, 9, 5, Bits)                          \
262   V_(NEONModImmOp, 29, 29, Bits)                        \
263   V_(NEONCmode, 15, 12, Bits)                           \
264                                                         \
265   /* NEON Shift Immediate fields */                     \
266   V_(ImmNEONImmhImmb, 22, 16, Bits)                     \
267   V_(ImmNEONImmh, 22, 19, Bits)                         \
268   V_(ImmNEONImmb, 18, 16, Bits)
269 
270 #define SYSTEM_REGISTER_FIELDS_LIST(V_, M_)                                    \
271 /* NZCV */                                                                     \
272 V_(Flags, 31, 28, Bits, uint32_t)                                              \
273 V_(N,     31, 31, Bits, bool)                                                  \
274 V_(Z,     30, 30, Bits, bool)                                                  \
275 V_(C,     29, 29, Bits, bool)                                                  \
276 V_(V,     28, 28, Bits, uint32_t)                                              \
277 M_(NZCV, Flags_mask)                                                           \
278                                                                                \
279 /* FPCR */                                                                     \
280 V_(AHP,   26, 26, Bits, bool)                                                  \
281 V_(DN,    25, 25, Bits, bool)                                                  \
282 V_(FZ,    24, 24, Bits, bool)                                                  \
283 V_(RMode, 23, 22, Bits, FPRounding)                                            \
284 M_(FPCR, AHP_mask | DN_mask | FZ_mask | RMode_mask)
285 
286 
287 // Fields offsets.
288 #define DECLARE_FIELDS_OFFSETS(Name, HighBit, LowBit, unused_1, unused_2)      \
289   const int Name##_offset = LowBit;                                            \
290   const int Name##_width = HighBit - LowBit + 1;                               \
291   const uint32_t Name##_mask = ((1 << Name##_width) - 1) << LowBit;
292 #define DECLARE_INSTRUCTION_FIELDS_OFFSETS(Name, HighBit, LowBit, unused_1)    \
293   DECLARE_FIELDS_OFFSETS(Name, HighBit, LowBit, unused_1, unused_2)
294 #define NOTHING(A, B)
295 INSTRUCTION_FIELDS_LIST(DECLARE_INSTRUCTION_FIELDS_OFFSETS)
296 SYSTEM_REGISTER_FIELDS_LIST(DECLARE_FIELDS_OFFSETS, NOTHING)
297 #undef NOTHING
298 #undef DECLARE_FIELDS_OFFSETS
299 #undef DECLARE_INSTRUCTION_FIELDS_OFFSETS
300 
301 // ImmPCRel is a compound field (not present in INSTRUCTION_FIELDS_LIST), formed
302 // from ImmPCRelLo and ImmPCRelHi.
303 const int ImmPCRel_mask = ImmPCRelLo_mask | ImmPCRelHi_mask;
304 
305 // Condition codes.
306 enum Condition {
307   eq = 0,
308   ne = 1,
309   hs = 2, cs = hs,
310   lo = 3, cc = lo,
311   mi = 4,
312   pl = 5,
313   vs = 6,
314   vc = 7,
315   hi = 8,
316   ls = 9,
317   ge = 10,
318   lt = 11,
319   gt = 12,
320   le = 13,
321   al = 14,
322   nv = 15  // Behaves as always/al.
323 };
324 
NegateCondition(Condition cond)325 inline Condition NegateCondition(Condition cond) {
326   // Conditions al and nv behave identically, as "always true". They can't be
327   // inverted, because there is no never condition.
328   DCHECK((cond != al) && (cond != nv));
329   return static_cast<Condition>(cond ^ 1);
330 }
331 
332 enum FlagsUpdate {
333   SetFlags   = 1,
334   LeaveFlags = 0
335 };
336 
337 enum StatusFlags {
338   NoFlag    = 0,
339 
340   // Derive the flag combinations from the system register bit descriptions.
341   NFlag     = N_mask,
342   ZFlag     = Z_mask,
343   CFlag     = C_mask,
344   VFlag     = V_mask,
345   NZFlag    = NFlag | ZFlag,
346   NCFlag    = NFlag | CFlag,
347   NVFlag    = NFlag | VFlag,
348   ZCFlag    = ZFlag | CFlag,
349   ZVFlag    = ZFlag | VFlag,
350   CVFlag    = CFlag | VFlag,
351   NZCFlag   = NFlag | ZFlag | CFlag,
352   NZVFlag   = NFlag | ZFlag | VFlag,
353   NCVFlag   = NFlag | CFlag | VFlag,
354   ZCVFlag   = ZFlag | CFlag | VFlag,
355   NZCVFlag  = NFlag | ZFlag | CFlag | VFlag,
356 
357   // Floating-point comparison results.
358   FPEqualFlag       = ZCFlag,
359   FPLessThanFlag    = NFlag,
360   FPGreaterThanFlag = CFlag,
361   FPUnorderedFlag   = CVFlag
362 };
363 
364 enum Shift {
365   NO_SHIFT = -1,
366   LSL = 0x0,
367   LSR = 0x1,
368   ASR = 0x2,
369   ROR = 0x3,
370   MSL = 0x4
371 };
372 
373 enum Extend {
374   NO_EXTEND = -1,
375   UXTB      = 0,
376   UXTH      = 1,
377   UXTW      = 2,
378   UXTX      = 3,
379   SXTB      = 4,
380   SXTH      = 5,
381   SXTW      = 6,
382   SXTX      = 7
383 };
384 
385 enum SystemHint {
386   NOP = 0,
387   YIELD = 1,
388   WFE = 2,
389   WFI = 3,
390   SEV = 4,
391   SEVL = 5,
392   CSDB = 20
393 };
394 
395 enum BarrierDomain {
396   OuterShareable = 0,
397   NonShareable   = 1,
398   InnerShareable = 2,
399   FullSystem     = 3
400 };
401 
402 enum BarrierType {
403   BarrierOther  = 0,
404   BarrierReads  = 1,
405   BarrierWrites = 2,
406   BarrierAll    = 3
407 };
408 
409 // System/special register names.
410 // This information is not encoded as one field but as the concatenation of
411 // multiple fields (Op0<0>, Op1, Crn, Crm, Op2).
412 enum SystemRegister {
413   NZCV = ((0x1 << SysO0_offset) |
414           (0x3 << SysOp1_offset) |
415           (0x4 << CRn_offset) |
416           (0x2 << CRm_offset) |
417           (0x0 << SysOp2_offset)) >> ImmSystemRegister_offset,
418   FPCR = ((0x1 << SysO0_offset) |
419           (0x3 << SysOp1_offset) |
420           (0x4 << CRn_offset) |
421           (0x4 << CRm_offset) |
422           (0x0 << SysOp2_offset)) >> ImmSystemRegister_offset
423 };
424 
425 // Instruction enumerations.
426 //
427 // These are the masks that define a class of instructions, and the list of
428 // instructions within each class. Each enumeration has a Fixed, FMask and
429 // Mask value.
430 //
431 // Fixed: The fixed bits in this instruction class.
432 // FMask: The mask used to extract the fixed bits in the class.
433 // Mask:  The mask used to identify the instructions within a class.
434 //
435 // The enumerations can be used like this:
436 //
437 // DCHECK(instr->Mask(PCRelAddressingFMask) == PCRelAddressingFixed);
438 // switch(instr->Mask(PCRelAddressingMask)) {
439 //   case ADR:  Format("adr 'Xd, 'AddrPCRelByte"); break;
440 //   case ADRP: Format("adrp 'Xd, 'AddrPCRelPage"); break;
441 //   default:   printf("Unknown instruction\n");
442 // }
443 
444 // Used to corrupt encodings by setting all bits when orred. Although currently
445 // unallocated in AArch64, this encoding is not guaranteed to be undefined
446 // indefinitely.
447 const uint32_t kUnallocatedInstruction = 0xffffffff;
448 
449 // Generic fields.
450 enum GenericInstrField {
451   SixtyFourBits        = 0x80000000,
452   ThirtyTwoBits        = 0x00000000,
453   FP32                 = 0x00000000,
454   FP64                 = 0x00400000
455 };
456 
457 enum NEONFormatField {
458   NEONFormatFieldMask = 0x40C00000,
459   NEON_Q = 0x40000000,
460   NEON_8B = 0x00000000,
461   NEON_16B = NEON_8B | NEON_Q,
462   NEON_4H = 0x00400000,
463   NEON_8H = NEON_4H | NEON_Q,
464   NEON_2S = 0x00800000,
465   NEON_4S = NEON_2S | NEON_Q,
466   NEON_1D = 0x00C00000,
467   NEON_2D = 0x00C00000 | NEON_Q
468 };
469 
470 enum NEONFPFormatField {
471   NEONFPFormatFieldMask = 0x40400000,
472   NEON_FP_2S = FP32,
473   NEON_FP_4S = FP32 | NEON_Q,
474   NEON_FP_2D = FP64 | NEON_Q
475 };
476 
477 enum NEONLSFormatField {
478   NEONLSFormatFieldMask = 0x40000C00,
479   LS_NEON_8B = 0x00000000,
480   LS_NEON_16B = LS_NEON_8B | NEON_Q,
481   LS_NEON_4H = 0x00000400,
482   LS_NEON_8H = LS_NEON_4H | NEON_Q,
483   LS_NEON_2S = 0x00000800,
484   LS_NEON_4S = LS_NEON_2S | NEON_Q,
485   LS_NEON_1D = 0x00000C00,
486   LS_NEON_2D = LS_NEON_1D | NEON_Q
487 };
488 
489 enum NEONScalarFormatField {
490   NEONScalarFormatFieldMask = 0x00C00000,
491   NEONScalar = 0x10000000,
492   NEON_B = 0x00000000,
493   NEON_H = 0x00400000,
494   NEON_S = 0x00800000,
495   NEON_D = 0x00C00000
496 };
497 
498 // PC relative addressing.
499 enum PCRelAddressingOp {
500   PCRelAddressingFixed = 0x10000000,
501   PCRelAddressingFMask = 0x1F000000,
502   PCRelAddressingMask  = 0x9F000000,
503   ADR                  = PCRelAddressingFixed | 0x00000000,
504   ADRP                 = PCRelAddressingFixed | 0x80000000
505 };
506 
507 // Add/sub (immediate, shifted and extended.)
508 const int kSFOffset = 31;
509 enum AddSubOp {
510   AddSubOpMask      = 0x60000000,
511   AddSubSetFlagsBit = 0x20000000,
512   ADD               = 0x00000000,
513   ADDS              = ADD | AddSubSetFlagsBit,
514   SUB               = 0x40000000,
515   SUBS              = SUB | AddSubSetFlagsBit
516 };
517 
518 #define ADD_SUB_OP_LIST(V)  \
519   V(ADD),                   \
520   V(ADDS),                  \
521   V(SUB),                   \
522   V(SUBS)
523 
524 enum AddSubImmediateOp {
525   AddSubImmediateFixed = 0x11000000,
526   AddSubImmediateFMask = 0x1F000000,
527   AddSubImmediateMask  = 0xFF000000,
528   #define ADD_SUB_IMMEDIATE(A)           \
529   A##_w_imm = AddSubImmediateFixed | A,  \
530   A##_x_imm = AddSubImmediateFixed | A | SixtyFourBits
531   ADD_SUB_OP_LIST(ADD_SUB_IMMEDIATE)
532   #undef ADD_SUB_IMMEDIATE
533 };
534 
535 enum AddSubShiftedOp {
536   AddSubShiftedFixed   = 0x0B000000,
537   AddSubShiftedFMask   = 0x1F200000,
538   AddSubShiftedMask    = 0xFF200000,
539   #define ADD_SUB_SHIFTED(A)             \
540   A##_w_shift = AddSubShiftedFixed | A,  \
541   A##_x_shift = AddSubShiftedFixed | A | SixtyFourBits
542   ADD_SUB_OP_LIST(ADD_SUB_SHIFTED)
543   #undef ADD_SUB_SHIFTED
544 };
545 
546 enum AddSubExtendedOp {
547   AddSubExtendedFixed  = 0x0B200000,
548   AddSubExtendedFMask  = 0x1F200000,
549   AddSubExtendedMask   = 0xFFE00000,
550   #define ADD_SUB_EXTENDED(A)           \
551   A##_w_ext = AddSubExtendedFixed | A,  \
552   A##_x_ext = AddSubExtendedFixed | A | SixtyFourBits
553   ADD_SUB_OP_LIST(ADD_SUB_EXTENDED)
554   #undef ADD_SUB_EXTENDED
555 };
556 
557 // Add/sub with carry.
558 enum AddSubWithCarryOp {
559   AddSubWithCarryFixed = 0x1A000000,
560   AddSubWithCarryFMask = 0x1FE00000,
561   AddSubWithCarryMask  = 0xFFE0FC00,
562   ADC_w                = AddSubWithCarryFixed | ADD,
563   ADC_x                = AddSubWithCarryFixed | ADD | SixtyFourBits,
564   ADC                  = ADC_w,
565   ADCS_w               = AddSubWithCarryFixed | ADDS,
566   ADCS_x               = AddSubWithCarryFixed | ADDS | SixtyFourBits,
567   SBC_w                = AddSubWithCarryFixed | SUB,
568   SBC_x                = AddSubWithCarryFixed | SUB | SixtyFourBits,
569   SBC                  = SBC_w,
570   SBCS_w               = AddSubWithCarryFixed | SUBS,
571   SBCS_x               = AddSubWithCarryFixed | SUBS | SixtyFourBits
572 };
573 
574 
575 // Logical (immediate and shifted register).
576 enum LogicalOp {
577   LogicalOpMask = 0x60200000,
578   NOT   = 0x00200000,
579   AND   = 0x00000000,
580   BIC   = AND | NOT,
581   ORR   = 0x20000000,
582   ORN   = ORR | NOT,
583   EOR   = 0x40000000,
584   EON   = EOR | NOT,
585   ANDS  = 0x60000000,
586   BICS  = ANDS | NOT
587 };
588 
589 // Logical immediate.
590 enum LogicalImmediateOp {
591   LogicalImmediateFixed = 0x12000000,
592   LogicalImmediateFMask = 0x1F800000,
593   LogicalImmediateMask  = 0xFF800000,
594   AND_w_imm   = LogicalImmediateFixed | AND,
595   AND_x_imm   = LogicalImmediateFixed | AND | SixtyFourBits,
596   ORR_w_imm   = LogicalImmediateFixed | ORR,
597   ORR_x_imm   = LogicalImmediateFixed | ORR | SixtyFourBits,
598   EOR_w_imm   = LogicalImmediateFixed | EOR,
599   EOR_x_imm   = LogicalImmediateFixed | EOR | SixtyFourBits,
600   ANDS_w_imm  = LogicalImmediateFixed | ANDS,
601   ANDS_x_imm  = LogicalImmediateFixed | ANDS | SixtyFourBits
602 };
603 
604 // Logical shifted register.
605 enum LogicalShiftedOp {
606   LogicalShiftedFixed = 0x0A000000,
607   LogicalShiftedFMask = 0x1F000000,
608   LogicalShiftedMask  = 0xFF200000,
609   AND_w               = LogicalShiftedFixed | AND,
610   AND_x               = LogicalShiftedFixed | AND | SixtyFourBits,
611   AND_shift           = AND_w,
612   BIC_w               = LogicalShiftedFixed | BIC,
613   BIC_x               = LogicalShiftedFixed | BIC | SixtyFourBits,
614   BIC_shift           = BIC_w,
615   ORR_w               = LogicalShiftedFixed | ORR,
616   ORR_x               = LogicalShiftedFixed | ORR | SixtyFourBits,
617   ORR_shift           = ORR_w,
618   ORN_w               = LogicalShiftedFixed | ORN,
619   ORN_x               = LogicalShiftedFixed | ORN | SixtyFourBits,
620   ORN_shift           = ORN_w,
621   EOR_w               = LogicalShiftedFixed | EOR,
622   EOR_x               = LogicalShiftedFixed | EOR | SixtyFourBits,
623   EOR_shift           = EOR_w,
624   EON_w               = LogicalShiftedFixed | EON,
625   EON_x               = LogicalShiftedFixed | EON | SixtyFourBits,
626   EON_shift           = EON_w,
627   ANDS_w              = LogicalShiftedFixed | ANDS,
628   ANDS_x              = LogicalShiftedFixed | ANDS | SixtyFourBits,
629   ANDS_shift          = ANDS_w,
630   BICS_w              = LogicalShiftedFixed | BICS,
631   BICS_x              = LogicalShiftedFixed | BICS | SixtyFourBits,
632   BICS_shift          = BICS_w
633 };
634 
635 // Move wide immediate.
636 enum MoveWideImmediateOp {
637   MoveWideImmediateFixed = 0x12800000,
638   MoveWideImmediateFMask = 0x1F800000,
639   MoveWideImmediateMask  = 0xFF800000,
640   MOVN                   = 0x00000000,
641   MOVZ                   = 0x40000000,
642   MOVK                   = 0x60000000,
643   MOVN_w                 = MoveWideImmediateFixed | MOVN,
644   MOVN_x                 = MoveWideImmediateFixed | MOVN | SixtyFourBits,
645   MOVZ_w                 = MoveWideImmediateFixed | MOVZ,
646   MOVZ_x                 = MoveWideImmediateFixed | MOVZ | SixtyFourBits,
647   MOVK_w                 = MoveWideImmediateFixed | MOVK,
648   MOVK_x                 = MoveWideImmediateFixed | MOVK | SixtyFourBits
649 };
650 
651 // Bitfield.
652 const int kBitfieldNOffset = 22;
653 enum BitfieldOp {
654   BitfieldFixed = 0x13000000,
655   BitfieldFMask = 0x1F800000,
656   BitfieldMask  = 0xFF800000,
657   SBFM_w        = BitfieldFixed | 0x00000000,
658   SBFM_x        = BitfieldFixed | 0x80000000,
659   SBFM          = SBFM_w,
660   BFM_w         = BitfieldFixed | 0x20000000,
661   BFM_x         = BitfieldFixed | 0xA0000000,
662   BFM           = BFM_w,
663   UBFM_w        = BitfieldFixed | 0x40000000,
664   UBFM_x        = BitfieldFixed | 0xC0000000,
665   UBFM          = UBFM_w
666   // Bitfield N field.
667 };
668 
669 // Extract.
670 enum ExtractOp {
671   ExtractFixed = 0x13800000,
672   ExtractFMask = 0x1F800000,
673   ExtractMask  = 0xFFA00000,
674   EXTR_w       = ExtractFixed | 0x00000000,
675   EXTR_x       = ExtractFixed | 0x80000000,
676   EXTR         = EXTR_w
677 };
678 
679 // Unconditional branch.
680 enum UnconditionalBranchOp {
681   UnconditionalBranchFixed = 0x14000000,
682   UnconditionalBranchFMask = 0x7C000000,
683   UnconditionalBranchMask  = 0xFC000000,
684   B                        = UnconditionalBranchFixed | 0x00000000,
685   BL                       = UnconditionalBranchFixed | 0x80000000
686 };
687 
688 // Unconditional branch to register.
689 enum UnconditionalBranchToRegisterOp {
690   UnconditionalBranchToRegisterFixed = 0xD6000000,
691   UnconditionalBranchToRegisterFMask = 0xFE000000,
692   UnconditionalBranchToRegisterMask  = 0xFFFFFC1F,
693   BR      = UnconditionalBranchToRegisterFixed | 0x001F0000,
694   BLR     = UnconditionalBranchToRegisterFixed | 0x003F0000,
695   RET     = UnconditionalBranchToRegisterFixed | 0x005F0000
696 };
697 
698 // Compare and branch.
699 enum CompareBranchOp {
700   CompareBranchFixed = 0x34000000,
701   CompareBranchFMask = 0x7E000000,
702   CompareBranchMask  = 0xFF000000,
703   CBZ_w              = CompareBranchFixed | 0x00000000,
704   CBZ_x              = CompareBranchFixed | 0x80000000,
705   CBZ                = CBZ_w,
706   CBNZ_w             = CompareBranchFixed | 0x01000000,
707   CBNZ_x             = CompareBranchFixed | 0x81000000,
708   CBNZ               = CBNZ_w
709 };
710 
711 // Test and branch.
712 enum TestBranchOp {
713   TestBranchFixed = 0x36000000,
714   TestBranchFMask = 0x7E000000,
715   TestBranchMask  = 0x7F000000,
716   TBZ             = TestBranchFixed | 0x00000000,
717   TBNZ            = TestBranchFixed | 0x01000000
718 };
719 
720 // Conditional branch.
721 enum ConditionalBranchOp {
722   ConditionalBranchFixed = 0x54000000,
723   ConditionalBranchFMask = 0xFE000000,
724   ConditionalBranchMask  = 0xFF000010,
725   B_cond                 = ConditionalBranchFixed | 0x00000000
726 };
727 
728 // System.
729 // System instruction encoding is complicated because some instructions use op
730 // and CR fields to encode parameters. To handle this cleanly, the system
731 // instructions are split into more than one enum.
732 
733 enum SystemOp {
734   SystemFixed = 0xD5000000,
735   SystemFMask = 0xFFC00000
736 };
737 
738 enum SystemSysRegOp {
739   SystemSysRegFixed = 0xD5100000,
740   SystemSysRegFMask = 0xFFD00000,
741   SystemSysRegMask  = 0xFFF00000,
742   MRS               = SystemSysRegFixed | 0x00200000,
743   MSR               = SystemSysRegFixed | 0x00000000
744 };
745 
746 enum SystemHintOp {
747   SystemHintFixed = 0xD503201F,
748   SystemHintFMask = 0xFFFFF01F,
749   SystemHintMask  = 0xFFFFF01F,
750   HINT            = SystemHintFixed | 0x00000000
751 };
752 
753 // Exception.
754 enum ExceptionOp {
755   ExceptionFixed = 0xD4000000,
756   ExceptionFMask = 0xFF000000,
757   ExceptionMask  = 0xFFE0001F,
758   HLT            = ExceptionFixed | 0x00400000,
759   BRK            = ExceptionFixed | 0x00200000,
760   SVC            = ExceptionFixed | 0x00000001,
761   HVC            = ExceptionFixed | 0x00000002,
762   SMC            = ExceptionFixed | 0x00000003,
763   DCPS1          = ExceptionFixed | 0x00A00001,
764   DCPS2          = ExceptionFixed | 0x00A00002,
765   DCPS3          = ExceptionFixed | 0x00A00003
766 };
767 // Code used to spot hlt instructions that should not be hit.
768 const int kHltBadCode = 0xbad;
769 
770 enum MemBarrierOp {
771   MemBarrierFixed = 0xD503309F,
772   MemBarrierFMask = 0xFFFFF09F,
773   MemBarrierMask  = 0xFFFFF0FF,
774   DSB             = MemBarrierFixed | 0x00000000,
775   DMB             = MemBarrierFixed | 0x00000020,
776   ISB             = MemBarrierFixed | 0x00000040
777 };
778 
779 // Any load or store (including pair).
780 enum LoadStoreAnyOp {
781   LoadStoreAnyFMask = 0x0a000000,
782   LoadStoreAnyFixed = 0x08000000
783 };
784 
785 // Any load pair or store pair.
786 enum LoadStorePairAnyOp {
787   LoadStorePairAnyFMask = 0x3a000000,
788   LoadStorePairAnyFixed = 0x28000000
789 };
790 
791 #define LOAD_STORE_PAIR_OP_LIST(V)                                         \
792   V(STP, w, 0x00000000)                                                    \
793   , V(LDP, w, 0x00400000), V(LDPSW, x, 0x40400000), V(STP, x, 0x80000000), \
794       V(LDP, x, 0x80400000), V(STP, s, 0x04000000), V(LDP, s, 0x04400000), \
795       V(STP, d, 0x44000000), V(LDP, d, 0x44400000), V(STP, q, 0x84000000), \
796       V(LDP, q, 0x84400000)
797 
798 // Load/store pair (post, pre and offset.)
799 enum LoadStorePairOp {
800   LoadStorePairMask = 0xC4400000,
801   LoadStorePairLBit = 1 << 22,
802   #define LOAD_STORE_PAIR(A, B, C) \
803   A##_##B = C
804   LOAD_STORE_PAIR_OP_LIST(LOAD_STORE_PAIR)
805   #undef LOAD_STORE_PAIR
806 };
807 
808 enum LoadStorePairPostIndexOp {
809   LoadStorePairPostIndexFixed = 0x28800000,
810   LoadStorePairPostIndexFMask = 0x3B800000,
811   LoadStorePairPostIndexMask  = 0xFFC00000,
812   #define LOAD_STORE_PAIR_POST_INDEX(A, B, C)  \
813   A##_##B##_post = LoadStorePairPostIndexFixed | A##_##B
814   LOAD_STORE_PAIR_OP_LIST(LOAD_STORE_PAIR_POST_INDEX)
815   #undef LOAD_STORE_PAIR_POST_INDEX
816 };
817 
818 enum LoadStorePairPreIndexOp {
819   LoadStorePairPreIndexFixed = 0x29800000,
820   LoadStorePairPreIndexFMask = 0x3B800000,
821   LoadStorePairPreIndexMask  = 0xFFC00000,
822   #define LOAD_STORE_PAIR_PRE_INDEX(A, B, C)  \
823   A##_##B##_pre = LoadStorePairPreIndexFixed | A##_##B
824   LOAD_STORE_PAIR_OP_LIST(LOAD_STORE_PAIR_PRE_INDEX)
825   #undef LOAD_STORE_PAIR_PRE_INDEX
826 };
827 
828 enum LoadStorePairOffsetOp {
829   LoadStorePairOffsetFixed = 0x29000000,
830   LoadStorePairOffsetFMask = 0x3B800000,
831   LoadStorePairOffsetMask  = 0xFFC00000,
832   #define LOAD_STORE_PAIR_OFFSET(A, B, C)  \
833   A##_##B##_off = LoadStorePairOffsetFixed | A##_##B
834   LOAD_STORE_PAIR_OP_LIST(LOAD_STORE_PAIR_OFFSET)
835   #undef LOAD_STORE_PAIR_OFFSET
836 };
837 
838 // Load literal.
839 enum LoadLiteralOp {
840   LoadLiteralFixed = 0x18000000,
841   LoadLiteralFMask = 0x3B000000,
842   LoadLiteralMask  = 0xFF000000,
843   LDR_w_lit        = LoadLiteralFixed | 0x00000000,
844   LDR_x_lit        = LoadLiteralFixed | 0x40000000,
845   LDRSW_x_lit      = LoadLiteralFixed | 0x80000000,
846   PRFM_lit         = LoadLiteralFixed | 0xC0000000,
847   LDR_s_lit        = LoadLiteralFixed | 0x04000000,
848   LDR_d_lit        = LoadLiteralFixed | 0x44000000
849 };
850 
851 // clang-format off
852 
853 #define LOAD_STORE_OP_LIST(V)  \
854   V(ST, RB, w,  0x00000000),   \
855   V(ST, RH, w,  0x40000000),   \
856   V(ST, R, w,   0x80000000),   \
857   V(ST, R, x,   0xC0000000),   \
858   V(LD, RB, w,  0x00400000),   \
859   V(LD, RH, w,  0x40400000),   \
860   V(LD, R, w,   0x80400000),   \
861   V(LD, R, x,   0xC0400000),   \
862   V(LD, RSB, x, 0x00800000),   \
863   V(LD, RSH, x, 0x40800000),   \
864   V(LD, RSW, x, 0x80800000),   \
865   V(LD, RSB, w, 0x00C00000),   \
866   V(LD, RSH, w, 0x40C00000),   \
867   V(ST, R, b,   0x04000000),   \
868   V(ST, R, h,   0x44000000),   \
869   V(ST, R, s,   0x84000000),   \
870   V(ST, R, d,   0xC4000000),   \
871   V(ST, R, q,   0x04800000),   \
872   V(LD, R, b,   0x04400000),   \
873   V(LD, R, h,   0x44400000),   \
874   V(LD, R, s,   0x84400000),   \
875   V(LD, R, d,   0xC4400000),   \
876   V(LD, R, q,   0x04C00000)
877 
878 // clang-format on
879 
880 // Load/store unscaled offset.
881 enum LoadStoreUnscaledOffsetOp {
882   LoadStoreUnscaledOffsetFixed = 0x38000000,
883   LoadStoreUnscaledOffsetFMask = 0x3B200C00,
884   LoadStoreUnscaledOffsetMask  = 0xFFE00C00,
885   #define LOAD_STORE_UNSCALED(A, B, C, D)  \
886   A##U##B##_##C = LoadStoreUnscaledOffsetFixed | D
887   LOAD_STORE_OP_LIST(LOAD_STORE_UNSCALED)
888   #undef LOAD_STORE_UNSCALED
889 };
890 
891 // Load/store (post, pre, offset and unsigned.)
892 enum LoadStoreOp {
893   LoadStoreMask = 0xC4C00000,
894 #define LOAD_STORE(A, B, C, D) A##B##_##C = D
895   LOAD_STORE_OP_LIST(LOAD_STORE),
896 #undef LOAD_STORE
897   PRFM = 0xC0800000
898 };
899 
900 // Load/store post index.
901 enum LoadStorePostIndex {
902   LoadStorePostIndexFixed = 0x38000400,
903   LoadStorePostIndexFMask = 0x3B200C00,
904   LoadStorePostIndexMask  = 0xFFE00C00,
905   #define LOAD_STORE_POST_INDEX(A, B, C, D)  \
906   A##B##_##C##_post = LoadStorePostIndexFixed | D
907   LOAD_STORE_OP_LIST(LOAD_STORE_POST_INDEX)
908   #undef LOAD_STORE_POST_INDEX
909 };
910 
911 // Load/store pre index.
912 enum LoadStorePreIndex {
913   LoadStorePreIndexFixed = 0x38000C00,
914   LoadStorePreIndexFMask = 0x3B200C00,
915   LoadStorePreIndexMask  = 0xFFE00C00,
916   #define LOAD_STORE_PRE_INDEX(A, B, C, D)  \
917   A##B##_##C##_pre = LoadStorePreIndexFixed | D
918   LOAD_STORE_OP_LIST(LOAD_STORE_PRE_INDEX)
919   #undef LOAD_STORE_PRE_INDEX
920 };
921 
922 // Load/store unsigned offset.
923 enum LoadStoreUnsignedOffset {
924   LoadStoreUnsignedOffsetFixed = 0x39000000,
925   LoadStoreUnsignedOffsetFMask = 0x3B000000,
926   LoadStoreUnsignedOffsetMask  = 0xFFC00000,
927   PRFM_unsigned                = LoadStoreUnsignedOffsetFixed | PRFM,
928   #define LOAD_STORE_UNSIGNED_OFFSET(A, B, C, D) \
929   A##B##_##C##_unsigned = LoadStoreUnsignedOffsetFixed | D
930   LOAD_STORE_OP_LIST(LOAD_STORE_UNSIGNED_OFFSET)
931   #undef LOAD_STORE_UNSIGNED_OFFSET
932 };
933 
934 // Load/store register offset.
935 enum LoadStoreRegisterOffset {
936   LoadStoreRegisterOffsetFixed = 0x38200800,
937   LoadStoreRegisterOffsetFMask = 0x3B200C00,
938   LoadStoreRegisterOffsetMask  = 0xFFE00C00,
939   PRFM_reg                     = LoadStoreRegisterOffsetFixed | PRFM,
940   #define LOAD_STORE_REGISTER_OFFSET(A, B, C, D) \
941   A##B##_##C##_reg = LoadStoreRegisterOffsetFixed | D
942   LOAD_STORE_OP_LIST(LOAD_STORE_REGISTER_OFFSET)
943   #undef LOAD_STORE_REGISTER_OFFSET
944 };
945 
946 // Load/store acquire/release.
947 enum LoadStoreAcquireReleaseOp {
948   LoadStoreAcquireReleaseFixed = 0x08000000,
949   LoadStoreAcquireReleaseFMask = 0x3F000000,
950   LoadStoreAcquireReleaseMask = 0xCFC08000,
951   STLXR_b = LoadStoreAcquireReleaseFixed | 0x00008000,
952   LDAXR_b = LoadStoreAcquireReleaseFixed | 0x00408000,
953   STLR_b  = LoadStoreAcquireReleaseFixed | 0x00808000,
954   LDAR_b  = LoadStoreAcquireReleaseFixed | 0x00C08000,
955   STLXR_h = LoadStoreAcquireReleaseFixed | 0x40008000,
956   LDAXR_h = LoadStoreAcquireReleaseFixed | 0x40408000,
957   STLR_h  = LoadStoreAcquireReleaseFixed | 0x40808000,
958   LDAR_h  = LoadStoreAcquireReleaseFixed | 0x40C08000,
959   STLXR_w = LoadStoreAcquireReleaseFixed | 0x80008000,
960   LDAXR_w = LoadStoreAcquireReleaseFixed | 0x80408000,
961   STLR_w  = LoadStoreAcquireReleaseFixed | 0x80808000,
962   LDAR_w  = LoadStoreAcquireReleaseFixed | 0x80C08000,
963   STLXR_x = LoadStoreAcquireReleaseFixed | 0xC0008000,
964   LDAXR_x = LoadStoreAcquireReleaseFixed | 0xC0408000,
965   STLR_x  = LoadStoreAcquireReleaseFixed | 0xC0808000,
966   LDAR_x  = LoadStoreAcquireReleaseFixed | 0xC0C08000,
967 };
968 
969 // Conditional compare.
970 enum ConditionalCompareOp {
971   ConditionalCompareMask = 0x60000000,
972   CCMN                   = 0x20000000,
973   CCMP                   = 0x60000000
974 };
975 
976 // Conditional compare register.
977 enum ConditionalCompareRegisterOp {
978   ConditionalCompareRegisterFixed = 0x1A400000,
979   ConditionalCompareRegisterFMask = 0x1FE00800,
980   ConditionalCompareRegisterMask  = 0xFFE00C10,
981   CCMN_w = ConditionalCompareRegisterFixed | CCMN,
982   CCMN_x = ConditionalCompareRegisterFixed | SixtyFourBits | CCMN,
983   CCMP_w = ConditionalCompareRegisterFixed | CCMP,
984   CCMP_x = ConditionalCompareRegisterFixed | SixtyFourBits | CCMP
985 };
986 
987 // Conditional compare immediate.
988 enum ConditionalCompareImmediateOp {
989   ConditionalCompareImmediateFixed = 0x1A400800,
990   ConditionalCompareImmediateFMask = 0x1FE00800,
991   ConditionalCompareImmediateMask  = 0xFFE00C10,
992   CCMN_w_imm = ConditionalCompareImmediateFixed | CCMN,
993   CCMN_x_imm = ConditionalCompareImmediateFixed | SixtyFourBits | CCMN,
994   CCMP_w_imm = ConditionalCompareImmediateFixed | CCMP,
995   CCMP_x_imm = ConditionalCompareImmediateFixed | SixtyFourBits | CCMP
996 };
997 
998 // Conditional select.
999 enum ConditionalSelectOp {
1000   ConditionalSelectFixed = 0x1A800000,
1001   ConditionalSelectFMask = 0x1FE00000,
1002   ConditionalSelectMask  = 0xFFE00C00,
1003   CSEL_w                 = ConditionalSelectFixed | 0x00000000,
1004   CSEL_x                 = ConditionalSelectFixed | 0x80000000,
1005   CSEL                   = CSEL_w,
1006   CSINC_w                = ConditionalSelectFixed | 0x00000400,
1007   CSINC_x                = ConditionalSelectFixed | 0x80000400,
1008   CSINC                  = CSINC_w,
1009   CSINV_w                = ConditionalSelectFixed | 0x40000000,
1010   CSINV_x                = ConditionalSelectFixed | 0xC0000000,
1011   CSINV                  = CSINV_w,
1012   CSNEG_w                = ConditionalSelectFixed | 0x40000400,
1013   CSNEG_x                = ConditionalSelectFixed | 0xC0000400,
1014   CSNEG                  = CSNEG_w
1015 };
1016 
1017 // Data processing 1 source.
1018 enum DataProcessing1SourceOp {
1019   DataProcessing1SourceFixed = 0x5AC00000,
1020   DataProcessing1SourceFMask = 0x5FE00000,
1021   DataProcessing1SourceMask  = 0xFFFFFC00,
1022   RBIT    = DataProcessing1SourceFixed | 0x00000000,
1023   RBIT_w  = RBIT,
1024   RBIT_x  = RBIT | SixtyFourBits,
1025   REV16   = DataProcessing1SourceFixed | 0x00000400,
1026   REV16_w = REV16,
1027   REV16_x = REV16 | SixtyFourBits,
1028   REV     = DataProcessing1SourceFixed | 0x00000800,
1029   REV_w   = REV,
1030   REV32_x = REV | SixtyFourBits,
1031   REV_x   = DataProcessing1SourceFixed | SixtyFourBits | 0x00000C00,
1032   CLZ     = DataProcessing1SourceFixed | 0x00001000,
1033   CLZ_w   = CLZ,
1034   CLZ_x   = CLZ | SixtyFourBits,
1035   CLS     = DataProcessing1SourceFixed | 0x00001400,
1036   CLS_w   = CLS,
1037   CLS_x   = CLS | SixtyFourBits
1038 };
1039 
1040 // Data processing 2 source.
1041 enum DataProcessing2SourceOp {
1042   DataProcessing2SourceFixed = 0x1AC00000,
1043   DataProcessing2SourceFMask = 0x5FE00000,
1044   DataProcessing2SourceMask  = 0xFFE0FC00,
1045   UDIV_w  = DataProcessing2SourceFixed | 0x00000800,
1046   UDIV_x  = DataProcessing2SourceFixed | 0x80000800,
1047   UDIV    = UDIV_w,
1048   SDIV_w  = DataProcessing2SourceFixed | 0x00000C00,
1049   SDIV_x  = DataProcessing2SourceFixed | 0x80000C00,
1050   SDIV    = SDIV_w,
1051   LSLV_w  = DataProcessing2SourceFixed | 0x00002000,
1052   LSLV_x  = DataProcessing2SourceFixed | 0x80002000,
1053   LSLV    = LSLV_w,
1054   LSRV_w  = DataProcessing2SourceFixed | 0x00002400,
1055   LSRV_x  = DataProcessing2SourceFixed | 0x80002400,
1056   LSRV    = LSRV_w,
1057   ASRV_w  = DataProcessing2SourceFixed | 0x00002800,
1058   ASRV_x  = DataProcessing2SourceFixed | 0x80002800,
1059   ASRV    = ASRV_w,
1060   RORV_w  = DataProcessing2SourceFixed | 0x00002C00,
1061   RORV_x  = DataProcessing2SourceFixed | 0x80002C00,
1062   RORV    = RORV_w,
1063   CRC32B  = DataProcessing2SourceFixed | 0x00004000,
1064   CRC32H  = DataProcessing2SourceFixed | 0x00004400,
1065   CRC32W  = DataProcessing2SourceFixed | 0x00004800,
1066   CRC32X  = DataProcessing2SourceFixed | SixtyFourBits | 0x00004C00,
1067   CRC32CB = DataProcessing2SourceFixed | 0x00005000,
1068   CRC32CH = DataProcessing2SourceFixed | 0x00005400,
1069   CRC32CW = DataProcessing2SourceFixed | 0x00005800,
1070   CRC32CX = DataProcessing2SourceFixed | SixtyFourBits | 0x00005C00
1071 };
1072 
1073 // Data processing 3 source.
1074 enum DataProcessing3SourceOp {
1075   DataProcessing3SourceFixed = 0x1B000000,
1076   DataProcessing3SourceFMask = 0x1F000000,
1077   DataProcessing3SourceMask  = 0xFFE08000,
1078   MADD_w                     = DataProcessing3SourceFixed | 0x00000000,
1079   MADD_x                     = DataProcessing3SourceFixed | 0x80000000,
1080   MADD                       = MADD_w,
1081   MSUB_w                     = DataProcessing3SourceFixed | 0x00008000,
1082   MSUB_x                     = DataProcessing3SourceFixed | 0x80008000,
1083   MSUB                       = MSUB_w,
1084   SMADDL_x                   = DataProcessing3SourceFixed | 0x80200000,
1085   SMSUBL_x                   = DataProcessing3SourceFixed | 0x80208000,
1086   SMULH_x                    = DataProcessing3SourceFixed | 0x80400000,
1087   UMADDL_x                   = DataProcessing3SourceFixed | 0x80A00000,
1088   UMSUBL_x                   = DataProcessing3SourceFixed | 0x80A08000,
1089   UMULH_x                    = DataProcessing3SourceFixed | 0x80C00000
1090 };
1091 
1092 // Floating point compare.
1093 enum FPCompareOp {
1094   FPCompareFixed = 0x1E202000,
1095   FPCompareFMask = 0x5F203C00,
1096   FPCompareMask  = 0xFFE0FC1F,
1097   FCMP_s         = FPCompareFixed | 0x00000000,
1098   FCMP_d         = FPCompareFixed | FP64 | 0x00000000,
1099   FCMP           = FCMP_s,
1100   FCMP_s_zero    = FPCompareFixed | 0x00000008,
1101   FCMP_d_zero    = FPCompareFixed | FP64 | 0x00000008,
1102   FCMP_zero      = FCMP_s_zero,
1103   FCMPE_s        = FPCompareFixed | 0x00000010,
1104   FCMPE_d        = FPCompareFixed | FP64 | 0x00000010,
1105   FCMPE_s_zero   = FPCompareFixed | 0x00000018,
1106   FCMPE_d_zero   = FPCompareFixed | FP64 | 0x00000018
1107 };
1108 
1109 // Floating point conditional compare.
1110 enum FPConditionalCompareOp {
1111   FPConditionalCompareFixed = 0x1E200400,
1112   FPConditionalCompareFMask = 0x5F200C00,
1113   FPConditionalCompareMask  = 0xFFE00C10,
1114   FCCMP_s                   = FPConditionalCompareFixed | 0x00000000,
1115   FCCMP_d                   = FPConditionalCompareFixed | FP64 | 0x00000000,
1116   FCCMP                     = FCCMP_s,
1117   FCCMPE_s                  = FPConditionalCompareFixed | 0x00000010,
1118   FCCMPE_d                  = FPConditionalCompareFixed | FP64 | 0x00000010,
1119   FCCMPE                    = FCCMPE_s
1120 };
1121 
1122 // Floating point conditional select.
1123 enum FPConditionalSelectOp {
1124   FPConditionalSelectFixed = 0x1E200C00,
1125   FPConditionalSelectFMask = 0x5F200C00,
1126   FPConditionalSelectMask  = 0xFFE00C00,
1127   FCSEL_s                  = FPConditionalSelectFixed | 0x00000000,
1128   FCSEL_d                  = FPConditionalSelectFixed | FP64 | 0x00000000,
1129   FCSEL                    = FCSEL_s
1130 };
1131 
1132 // Floating point immediate.
1133 enum FPImmediateOp {
1134   FPImmediateFixed = 0x1E201000,
1135   FPImmediateFMask = 0x5F201C00,
1136   FPImmediateMask  = 0xFFE01C00,
1137   FMOV_s_imm       = FPImmediateFixed | 0x00000000,
1138   FMOV_d_imm       = FPImmediateFixed | FP64 | 0x00000000
1139 };
1140 
1141 // Floating point data processing 1 source.
1142 enum FPDataProcessing1SourceOp {
1143   FPDataProcessing1SourceFixed = 0x1E204000,
1144   FPDataProcessing1SourceFMask = 0x5F207C00,
1145   FPDataProcessing1SourceMask = 0xFFFFFC00,
1146   FMOV_s = FPDataProcessing1SourceFixed | 0x00000000,
1147   FMOV_d = FPDataProcessing1SourceFixed | FP64 | 0x00000000,
1148   FMOV = FMOV_s,
1149   FABS_s = FPDataProcessing1SourceFixed | 0x00008000,
1150   FABS_d = FPDataProcessing1SourceFixed | FP64 | 0x00008000,
1151   FABS = FABS_s,
1152   FNEG_s = FPDataProcessing1SourceFixed | 0x00010000,
1153   FNEG_d = FPDataProcessing1SourceFixed | FP64 | 0x00010000,
1154   FNEG = FNEG_s,
1155   FSQRT_s = FPDataProcessing1SourceFixed | 0x00018000,
1156   FSQRT_d = FPDataProcessing1SourceFixed | FP64 | 0x00018000,
1157   FSQRT = FSQRT_s,
1158   FCVT_ds = FPDataProcessing1SourceFixed | 0x00028000,
1159   FCVT_sd = FPDataProcessing1SourceFixed | FP64 | 0x00020000,
1160   FCVT_hs = FPDataProcessing1SourceFixed | 0x00038000,
1161   FCVT_hd = FPDataProcessing1SourceFixed | FP64 | 0x00038000,
1162   FCVT_sh = FPDataProcessing1SourceFixed | 0x00C20000,
1163   FCVT_dh = FPDataProcessing1SourceFixed | 0x00C28000,
1164   FRINTN_s = FPDataProcessing1SourceFixed | 0x00040000,
1165   FRINTN_d = FPDataProcessing1SourceFixed | FP64 | 0x00040000,
1166   FRINTN = FRINTN_s,
1167   FRINTP_s = FPDataProcessing1SourceFixed | 0x00048000,
1168   FRINTP_d = FPDataProcessing1SourceFixed | FP64 | 0x00048000,
1169   FRINTP = FRINTP_s,
1170   FRINTM_s = FPDataProcessing1SourceFixed | 0x00050000,
1171   FRINTM_d = FPDataProcessing1SourceFixed | FP64 | 0x00050000,
1172   FRINTM = FRINTM_s,
1173   FRINTZ_s = FPDataProcessing1SourceFixed | 0x00058000,
1174   FRINTZ_d = FPDataProcessing1SourceFixed | FP64 | 0x00058000,
1175   FRINTZ = FRINTZ_s,
1176   FRINTA_s = FPDataProcessing1SourceFixed | 0x00060000,
1177   FRINTA_d = FPDataProcessing1SourceFixed | FP64 | 0x00060000,
1178   FRINTA = FRINTA_s,
1179   FRINTX_s = FPDataProcessing1SourceFixed | 0x00070000,
1180   FRINTX_d = FPDataProcessing1SourceFixed | FP64 | 0x00070000,
1181   FRINTX = FRINTX_s,
1182   FRINTI_s = FPDataProcessing1SourceFixed | 0x00078000,
1183   FRINTI_d = FPDataProcessing1SourceFixed | FP64 | 0x00078000,
1184   FRINTI = FRINTI_s
1185 };
1186 
1187 // Floating point data processing 2 source.
1188 enum FPDataProcessing2SourceOp {
1189   FPDataProcessing2SourceFixed = 0x1E200800,
1190   FPDataProcessing2SourceFMask = 0x5F200C00,
1191   FPDataProcessing2SourceMask  = 0xFFE0FC00,
1192   FMUL     = FPDataProcessing2SourceFixed | 0x00000000,
1193   FMUL_s   = FMUL,
1194   FMUL_d   = FMUL | FP64,
1195   FDIV     = FPDataProcessing2SourceFixed | 0x00001000,
1196   FDIV_s   = FDIV,
1197   FDIV_d   = FDIV | FP64,
1198   FADD     = FPDataProcessing2SourceFixed | 0x00002000,
1199   FADD_s   = FADD,
1200   FADD_d   = FADD | FP64,
1201   FSUB     = FPDataProcessing2SourceFixed | 0x00003000,
1202   FSUB_s   = FSUB,
1203   FSUB_d   = FSUB | FP64,
1204   FMAX     = FPDataProcessing2SourceFixed | 0x00004000,
1205   FMAX_s   = FMAX,
1206   FMAX_d   = FMAX | FP64,
1207   FMIN     = FPDataProcessing2SourceFixed | 0x00005000,
1208   FMIN_s   = FMIN,
1209   FMIN_d   = FMIN | FP64,
1210   FMAXNM   = FPDataProcessing2SourceFixed | 0x00006000,
1211   FMAXNM_s = FMAXNM,
1212   FMAXNM_d = FMAXNM | FP64,
1213   FMINNM   = FPDataProcessing2SourceFixed | 0x00007000,
1214   FMINNM_s = FMINNM,
1215   FMINNM_d = FMINNM | FP64,
1216   FNMUL    = FPDataProcessing2SourceFixed | 0x00008000,
1217   FNMUL_s  = FNMUL,
1218   FNMUL_d  = FNMUL | FP64
1219 };
1220 
1221 // Floating point data processing 3 source.
1222 enum FPDataProcessing3SourceOp {
1223   FPDataProcessing3SourceFixed = 0x1F000000,
1224   FPDataProcessing3SourceFMask = 0x5F000000,
1225   FPDataProcessing3SourceMask  = 0xFFE08000,
1226   FMADD_s                      = FPDataProcessing3SourceFixed | 0x00000000,
1227   FMSUB_s                      = FPDataProcessing3SourceFixed | 0x00008000,
1228   FNMADD_s                     = FPDataProcessing3SourceFixed | 0x00200000,
1229   FNMSUB_s                     = FPDataProcessing3SourceFixed | 0x00208000,
1230   FMADD_d                      = FPDataProcessing3SourceFixed | 0x00400000,
1231   FMSUB_d                      = FPDataProcessing3SourceFixed | 0x00408000,
1232   FNMADD_d                     = FPDataProcessing3SourceFixed | 0x00600000,
1233   FNMSUB_d                     = FPDataProcessing3SourceFixed | 0x00608000
1234 };
1235 
1236 // Conversion between floating point and integer.
1237 enum FPIntegerConvertOp {
1238   FPIntegerConvertFixed = 0x1E200000,
1239   FPIntegerConvertFMask = 0x5F20FC00,
1240   FPIntegerConvertMask = 0xFFFFFC00,
1241   FCVTNS = FPIntegerConvertFixed | 0x00000000,
1242   FCVTNS_ws = FCVTNS,
1243   FCVTNS_xs = FCVTNS | SixtyFourBits,
1244   FCVTNS_wd = FCVTNS | FP64,
1245   FCVTNS_xd = FCVTNS | SixtyFourBits | FP64,
1246   FCVTNU = FPIntegerConvertFixed | 0x00010000,
1247   FCVTNU_ws = FCVTNU,
1248   FCVTNU_xs = FCVTNU | SixtyFourBits,
1249   FCVTNU_wd = FCVTNU | FP64,
1250   FCVTNU_xd = FCVTNU | SixtyFourBits | FP64,
1251   FCVTPS = FPIntegerConvertFixed | 0x00080000,
1252   FCVTPS_ws = FCVTPS,
1253   FCVTPS_xs = FCVTPS | SixtyFourBits,
1254   FCVTPS_wd = FCVTPS | FP64,
1255   FCVTPS_xd = FCVTPS | SixtyFourBits | FP64,
1256   FCVTPU = FPIntegerConvertFixed | 0x00090000,
1257   FCVTPU_ws = FCVTPU,
1258   FCVTPU_xs = FCVTPU | SixtyFourBits,
1259   FCVTPU_wd = FCVTPU | FP64,
1260   FCVTPU_xd = FCVTPU | SixtyFourBits | FP64,
1261   FCVTMS = FPIntegerConvertFixed | 0x00100000,
1262   FCVTMS_ws = FCVTMS,
1263   FCVTMS_xs = FCVTMS | SixtyFourBits,
1264   FCVTMS_wd = FCVTMS | FP64,
1265   FCVTMS_xd = FCVTMS | SixtyFourBits | FP64,
1266   FCVTMU = FPIntegerConvertFixed | 0x00110000,
1267   FCVTMU_ws = FCVTMU,
1268   FCVTMU_xs = FCVTMU | SixtyFourBits,
1269   FCVTMU_wd = FCVTMU | FP64,
1270   FCVTMU_xd = FCVTMU | SixtyFourBits | FP64,
1271   FCVTZS = FPIntegerConvertFixed | 0x00180000,
1272   FCVTZS_ws = FCVTZS,
1273   FCVTZS_xs = FCVTZS | SixtyFourBits,
1274   FCVTZS_wd = FCVTZS | FP64,
1275   FCVTZS_xd = FCVTZS | SixtyFourBits | FP64,
1276   FCVTZU = FPIntegerConvertFixed | 0x00190000,
1277   FCVTZU_ws = FCVTZU,
1278   FCVTZU_xs = FCVTZU | SixtyFourBits,
1279   FCVTZU_wd = FCVTZU | FP64,
1280   FCVTZU_xd = FCVTZU | SixtyFourBits | FP64,
1281   SCVTF = FPIntegerConvertFixed | 0x00020000,
1282   SCVTF_sw = SCVTF,
1283   SCVTF_sx = SCVTF | SixtyFourBits,
1284   SCVTF_dw = SCVTF | FP64,
1285   SCVTF_dx = SCVTF | SixtyFourBits | FP64,
1286   UCVTF = FPIntegerConvertFixed | 0x00030000,
1287   UCVTF_sw = UCVTF,
1288   UCVTF_sx = UCVTF | SixtyFourBits,
1289   UCVTF_dw = UCVTF | FP64,
1290   UCVTF_dx = UCVTF | SixtyFourBits | FP64,
1291   FCVTAS = FPIntegerConvertFixed | 0x00040000,
1292   FCVTAS_ws = FCVTAS,
1293   FCVTAS_xs = FCVTAS | SixtyFourBits,
1294   FCVTAS_wd = FCVTAS | FP64,
1295   FCVTAS_xd = FCVTAS | SixtyFourBits | FP64,
1296   FCVTAU = FPIntegerConvertFixed | 0x00050000,
1297   FCVTAU_ws = FCVTAU,
1298   FCVTAU_xs = FCVTAU | SixtyFourBits,
1299   FCVTAU_wd = FCVTAU | FP64,
1300   FCVTAU_xd = FCVTAU | SixtyFourBits | FP64,
1301   FMOV_ws = FPIntegerConvertFixed | 0x00060000,
1302   FMOV_sw = FPIntegerConvertFixed | 0x00070000,
1303   FMOV_xd = FMOV_ws | SixtyFourBits | FP64,
1304   FMOV_dx = FMOV_sw | SixtyFourBits | FP64,
1305   FMOV_d1_x = FPIntegerConvertFixed | SixtyFourBits | 0x008F0000,
1306   FMOV_x_d1 = FPIntegerConvertFixed | SixtyFourBits | 0x008E0000
1307 };
1308 
1309 // Conversion between fixed point and floating point.
1310 enum FPFixedPointConvertOp {
1311   FPFixedPointConvertFixed = 0x1E000000,
1312   FPFixedPointConvertFMask = 0x5F200000,
1313   FPFixedPointConvertMask  = 0xFFFF0000,
1314   FCVTZS_fixed    = FPFixedPointConvertFixed | 0x00180000,
1315   FCVTZS_ws_fixed = FCVTZS_fixed,
1316   FCVTZS_xs_fixed = FCVTZS_fixed | SixtyFourBits,
1317   FCVTZS_wd_fixed = FCVTZS_fixed | FP64,
1318   FCVTZS_xd_fixed = FCVTZS_fixed | SixtyFourBits | FP64,
1319   FCVTZU_fixed    = FPFixedPointConvertFixed | 0x00190000,
1320   FCVTZU_ws_fixed = FCVTZU_fixed,
1321   FCVTZU_xs_fixed = FCVTZU_fixed | SixtyFourBits,
1322   FCVTZU_wd_fixed = FCVTZU_fixed | FP64,
1323   FCVTZU_xd_fixed = FCVTZU_fixed | SixtyFourBits | FP64,
1324   SCVTF_fixed     = FPFixedPointConvertFixed | 0x00020000,
1325   SCVTF_sw_fixed  = SCVTF_fixed,
1326   SCVTF_sx_fixed  = SCVTF_fixed | SixtyFourBits,
1327   SCVTF_dw_fixed  = SCVTF_fixed | FP64,
1328   SCVTF_dx_fixed  = SCVTF_fixed | SixtyFourBits | FP64,
1329   UCVTF_fixed     = FPFixedPointConvertFixed | 0x00030000,
1330   UCVTF_sw_fixed  = UCVTF_fixed,
1331   UCVTF_sx_fixed  = UCVTF_fixed | SixtyFourBits,
1332   UCVTF_dw_fixed  = UCVTF_fixed | FP64,
1333   UCVTF_dx_fixed  = UCVTF_fixed | SixtyFourBits | FP64
1334 };
1335 
1336 // NEON instructions with two register operands.
1337 enum NEON2RegMiscOp {
1338   NEON2RegMiscFixed = 0x0E200800,
1339   NEON2RegMiscFMask = 0x9F3E0C00,
1340   NEON2RegMiscMask = 0xBF3FFC00,
1341   NEON2RegMiscUBit = 0x20000000,
1342   NEON_REV64 = NEON2RegMiscFixed | 0x00000000,
1343   NEON_REV32 = NEON2RegMiscFixed | 0x20000000,
1344   NEON_REV16 = NEON2RegMiscFixed | 0x00001000,
1345   NEON_SADDLP = NEON2RegMiscFixed | 0x00002000,
1346   NEON_UADDLP = NEON_SADDLP | NEON2RegMiscUBit,
1347   NEON_SUQADD = NEON2RegMiscFixed | 0x00003000,
1348   NEON_USQADD = NEON_SUQADD | NEON2RegMiscUBit,
1349   NEON_CLS = NEON2RegMiscFixed | 0x00004000,
1350   NEON_CLZ = NEON2RegMiscFixed | 0x20004000,
1351   NEON_CNT = NEON2RegMiscFixed | 0x00005000,
1352   NEON_RBIT_NOT = NEON2RegMiscFixed | 0x20005000,
1353   NEON_SADALP = NEON2RegMiscFixed | 0x00006000,
1354   NEON_UADALP = NEON_SADALP | NEON2RegMiscUBit,
1355   NEON_SQABS = NEON2RegMiscFixed | 0x00007000,
1356   NEON_SQNEG = NEON2RegMiscFixed | 0x20007000,
1357   NEON_CMGT_zero = NEON2RegMiscFixed | 0x00008000,
1358   NEON_CMGE_zero = NEON2RegMiscFixed | 0x20008000,
1359   NEON_CMEQ_zero = NEON2RegMiscFixed | 0x00009000,
1360   NEON_CMLE_zero = NEON2RegMiscFixed | 0x20009000,
1361   NEON_CMLT_zero = NEON2RegMiscFixed | 0x0000A000,
1362   NEON_ABS = NEON2RegMiscFixed | 0x0000B000,
1363   NEON_NEG = NEON2RegMiscFixed | 0x2000B000,
1364   NEON_XTN = NEON2RegMiscFixed | 0x00012000,
1365   NEON_SQXTUN = NEON2RegMiscFixed | 0x20012000,
1366   NEON_SHLL = NEON2RegMiscFixed | 0x20013000,
1367   NEON_SQXTN = NEON2RegMiscFixed | 0x00014000,
1368   NEON_UQXTN = NEON_SQXTN | NEON2RegMiscUBit,
1369 
1370   NEON2RegMiscOpcode = 0x0001F000,
1371   NEON_RBIT_NOT_opcode = NEON_RBIT_NOT & NEON2RegMiscOpcode,
1372   NEON_NEG_opcode = NEON_NEG & NEON2RegMiscOpcode,
1373   NEON_XTN_opcode = NEON_XTN & NEON2RegMiscOpcode,
1374   NEON_UQXTN_opcode = NEON_UQXTN & NEON2RegMiscOpcode,
1375 
1376   // These instructions use only one bit of the size field. The other bit is
1377   // used to distinguish between instructions.
1378   NEON2RegMiscFPMask = NEON2RegMiscMask | 0x00800000,
1379   NEON_FABS = NEON2RegMiscFixed | 0x0080F000,
1380   NEON_FNEG = NEON2RegMiscFixed | 0x2080F000,
1381   NEON_FCVTN = NEON2RegMiscFixed | 0x00016000,
1382   NEON_FCVTXN = NEON2RegMiscFixed | 0x20016000,
1383   NEON_FCVTL = NEON2RegMiscFixed | 0x00017000,
1384   NEON_FRINTN = NEON2RegMiscFixed | 0x00018000,
1385   NEON_FRINTA = NEON2RegMiscFixed | 0x20018000,
1386   NEON_FRINTP = NEON2RegMiscFixed | 0x00818000,
1387   NEON_FRINTM = NEON2RegMiscFixed | 0x00019000,
1388   NEON_FRINTX = NEON2RegMiscFixed | 0x20019000,
1389   NEON_FRINTZ = NEON2RegMiscFixed | 0x00819000,
1390   NEON_FRINTI = NEON2RegMiscFixed | 0x20819000,
1391   NEON_FCVTNS = NEON2RegMiscFixed | 0x0001A000,
1392   NEON_FCVTNU = NEON_FCVTNS | NEON2RegMiscUBit,
1393   NEON_FCVTPS = NEON2RegMiscFixed | 0x0081A000,
1394   NEON_FCVTPU = NEON_FCVTPS | NEON2RegMiscUBit,
1395   NEON_FCVTMS = NEON2RegMiscFixed | 0x0001B000,
1396   NEON_FCVTMU = NEON_FCVTMS | NEON2RegMiscUBit,
1397   NEON_FCVTZS = NEON2RegMiscFixed | 0x0081B000,
1398   NEON_FCVTZU = NEON_FCVTZS | NEON2RegMiscUBit,
1399   NEON_FCVTAS = NEON2RegMiscFixed | 0x0001C000,
1400   NEON_FCVTAU = NEON_FCVTAS | NEON2RegMiscUBit,
1401   NEON_FSQRT = NEON2RegMiscFixed | 0x2081F000,
1402   NEON_SCVTF = NEON2RegMiscFixed | 0x0001D000,
1403   NEON_UCVTF = NEON_SCVTF | NEON2RegMiscUBit,
1404   NEON_URSQRTE = NEON2RegMiscFixed | 0x2081C000,
1405   NEON_URECPE = NEON2RegMiscFixed | 0x0081C000,
1406   NEON_FRSQRTE = NEON2RegMiscFixed | 0x2081D000,
1407   NEON_FRECPE = NEON2RegMiscFixed | 0x0081D000,
1408   NEON_FCMGT_zero = NEON2RegMiscFixed | 0x0080C000,
1409   NEON_FCMGE_zero = NEON2RegMiscFixed | 0x2080C000,
1410   NEON_FCMEQ_zero = NEON2RegMiscFixed | 0x0080D000,
1411   NEON_FCMLE_zero = NEON2RegMiscFixed | 0x2080D000,
1412   NEON_FCMLT_zero = NEON2RegMiscFixed | 0x0080E000,
1413 
1414   NEON_FCVTL_opcode = NEON_FCVTL & NEON2RegMiscOpcode,
1415   NEON_FCVTN_opcode = NEON_FCVTN & NEON2RegMiscOpcode
1416 };
1417 
1418 // NEON instructions with three same-type operands.
1419 enum NEON3SameOp {
1420   NEON3SameFixed = 0x0E200400,
1421   NEON3SameFMask = 0x9F200400,
1422   NEON3SameMask = 0xBF20FC00,
1423   NEON3SameUBit = 0x20000000,
1424   NEON_ADD = NEON3SameFixed | 0x00008000,
1425   NEON_ADDP = NEON3SameFixed | 0x0000B800,
1426   NEON_SHADD = NEON3SameFixed | 0x00000000,
1427   NEON_SHSUB = NEON3SameFixed | 0x00002000,
1428   NEON_SRHADD = NEON3SameFixed | 0x00001000,
1429   NEON_CMEQ = NEON3SameFixed | NEON3SameUBit | 0x00008800,
1430   NEON_CMGE = NEON3SameFixed | 0x00003800,
1431   NEON_CMGT = NEON3SameFixed | 0x00003000,
1432   NEON_CMHI = NEON3SameFixed | NEON3SameUBit | NEON_CMGT,
1433   NEON_CMHS = NEON3SameFixed | NEON3SameUBit | NEON_CMGE,
1434   NEON_CMTST = NEON3SameFixed | 0x00008800,
1435   NEON_MLA = NEON3SameFixed | 0x00009000,
1436   NEON_MLS = NEON3SameFixed | 0x20009000,
1437   NEON_MUL = NEON3SameFixed | 0x00009800,
1438   NEON_PMUL = NEON3SameFixed | 0x20009800,
1439   NEON_SRSHL = NEON3SameFixed | 0x00005000,
1440   NEON_SQSHL = NEON3SameFixed | 0x00004800,
1441   NEON_SQRSHL = NEON3SameFixed | 0x00005800,
1442   NEON_SSHL = NEON3SameFixed | 0x00004000,
1443   NEON_SMAX = NEON3SameFixed | 0x00006000,
1444   NEON_SMAXP = NEON3SameFixed | 0x0000A000,
1445   NEON_SMIN = NEON3SameFixed | 0x00006800,
1446   NEON_SMINP = NEON3SameFixed | 0x0000A800,
1447   NEON_SABD = NEON3SameFixed | 0x00007000,
1448   NEON_SABA = NEON3SameFixed | 0x00007800,
1449   NEON_UABD = NEON3SameFixed | NEON3SameUBit | NEON_SABD,
1450   NEON_UABA = NEON3SameFixed | NEON3SameUBit | NEON_SABA,
1451   NEON_SQADD = NEON3SameFixed | 0x00000800,
1452   NEON_SQSUB = NEON3SameFixed | 0x00002800,
1453   NEON_SUB = NEON3SameFixed | NEON3SameUBit | 0x00008000,
1454   NEON_UHADD = NEON3SameFixed | NEON3SameUBit | NEON_SHADD,
1455   NEON_UHSUB = NEON3SameFixed | NEON3SameUBit | NEON_SHSUB,
1456   NEON_URHADD = NEON3SameFixed | NEON3SameUBit | NEON_SRHADD,
1457   NEON_UMAX = NEON3SameFixed | NEON3SameUBit | NEON_SMAX,
1458   NEON_UMAXP = NEON3SameFixed | NEON3SameUBit | NEON_SMAXP,
1459   NEON_UMIN = NEON3SameFixed | NEON3SameUBit | NEON_SMIN,
1460   NEON_UMINP = NEON3SameFixed | NEON3SameUBit | NEON_SMINP,
1461   NEON_URSHL = NEON3SameFixed | NEON3SameUBit | NEON_SRSHL,
1462   NEON_UQADD = NEON3SameFixed | NEON3SameUBit | NEON_SQADD,
1463   NEON_UQRSHL = NEON3SameFixed | NEON3SameUBit | NEON_SQRSHL,
1464   NEON_UQSHL = NEON3SameFixed | NEON3SameUBit | NEON_SQSHL,
1465   NEON_UQSUB = NEON3SameFixed | NEON3SameUBit | NEON_SQSUB,
1466   NEON_USHL = NEON3SameFixed | NEON3SameUBit | NEON_SSHL,
1467   NEON_SQDMULH = NEON3SameFixed | 0x0000B000,
1468   NEON_SQRDMULH = NEON3SameFixed | 0x2000B000,
1469 
1470   // NEON floating point instructions with three same-type operands.
1471   NEON3SameFPFixed = NEON3SameFixed | 0x0000C000,
1472   NEON3SameFPFMask = NEON3SameFMask | 0x0000C000,
1473   NEON3SameFPMask = NEON3SameMask | 0x00800000,
1474   NEON_FADD = NEON3SameFixed | 0x0000D000,
1475   NEON_FSUB = NEON3SameFixed | 0x0080D000,
1476   NEON_FMUL = NEON3SameFixed | 0x2000D800,
1477   NEON_FDIV = NEON3SameFixed | 0x2000F800,
1478   NEON_FMAX = NEON3SameFixed | 0x0000F000,
1479   NEON_FMAXNM = NEON3SameFixed | 0x0000C000,
1480   NEON_FMAXP = NEON3SameFixed | 0x2000F000,
1481   NEON_FMAXNMP = NEON3SameFixed | 0x2000C000,
1482   NEON_FMIN = NEON3SameFixed | 0x0080F000,
1483   NEON_FMINNM = NEON3SameFixed | 0x0080C000,
1484   NEON_FMINP = NEON3SameFixed | 0x2080F000,
1485   NEON_FMINNMP = NEON3SameFixed | 0x2080C000,
1486   NEON_FMLA = NEON3SameFixed | 0x0000C800,
1487   NEON_FMLS = NEON3SameFixed | 0x0080C800,
1488   NEON_FMULX = NEON3SameFixed | 0x0000D800,
1489   NEON_FRECPS = NEON3SameFixed | 0x0000F800,
1490   NEON_FRSQRTS = NEON3SameFixed | 0x0080F800,
1491   NEON_FABD = NEON3SameFixed | 0x2080D000,
1492   NEON_FADDP = NEON3SameFixed | 0x2000D000,
1493   NEON_FCMEQ = NEON3SameFixed | 0x0000E000,
1494   NEON_FCMGE = NEON3SameFixed | 0x2000E000,
1495   NEON_FCMGT = NEON3SameFixed | 0x2080E000,
1496   NEON_FACGE = NEON3SameFixed | 0x2000E800,
1497   NEON_FACGT = NEON3SameFixed | 0x2080E800,
1498 
1499   // NEON logical instructions with three same-type operands.
1500   NEON3SameLogicalFixed = NEON3SameFixed | 0x00001800,
1501   NEON3SameLogicalFMask = NEON3SameFMask | 0x0000F800,
1502   NEON3SameLogicalMask = 0xBFE0FC00,
1503   NEON3SameLogicalFormatMask = NEON_Q,
1504   NEON_AND = NEON3SameLogicalFixed | 0x00000000,
1505   NEON_ORR = NEON3SameLogicalFixed | 0x00A00000,
1506   NEON_ORN = NEON3SameLogicalFixed | 0x00C00000,
1507   NEON_EOR = NEON3SameLogicalFixed | 0x20000000,
1508   NEON_BIC = NEON3SameLogicalFixed | 0x00400000,
1509   NEON_BIF = NEON3SameLogicalFixed | 0x20C00000,
1510   NEON_BIT = NEON3SameLogicalFixed | 0x20800000,
1511   NEON_BSL = NEON3SameLogicalFixed | 0x20400000
1512 };
1513 
1514 // NEON instructions with three different-type operands.
1515 enum NEON3DifferentOp {
1516   NEON3DifferentFixed = 0x0E200000,
1517   NEON3DifferentFMask = 0x9F200C00,
1518   NEON3DifferentMask = 0xFF20FC00,
1519   NEON_ADDHN = NEON3DifferentFixed | 0x00004000,
1520   NEON_ADDHN2 = NEON_ADDHN | NEON_Q,
1521   NEON_PMULL = NEON3DifferentFixed | 0x0000E000,
1522   NEON_PMULL2 = NEON_PMULL | NEON_Q,
1523   NEON_RADDHN = NEON3DifferentFixed | 0x20004000,
1524   NEON_RADDHN2 = NEON_RADDHN | NEON_Q,
1525   NEON_RSUBHN = NEON3DifferentFixed | 0x20006000,
1526   NEON_RSUBHN2 = NEON_RSUBHN | NEON_Q,
1527   NEON_SABAL = NEON3DifferentFixed | 0x00005000,
1528   NEON_SABAL2 = NEON_SABAL | NEON_Q,
1529   NEON_SABDL = NEON3DifferentFixed | 0x00007000,
1530   NEON_SABDL2 = NEON_SABDL | NEON_Q,
1531   NEON_SADDL = NEON3DifferentFixed | 0x00000000,
1532   NEON_SADDL2 = NEON_SADDL | NEON_Q,
1533   NEON_SADDW = NEON3DifferentFixed | 0x00001000,
1534   NEON_SADDW2 = NEON_SADDW | NEON_Q,
1535   NEON_SMLAL = NEON3DifferentFixed | 0x00008000,
1536   NEON_SMLAL2 = NEON_SMLAL | NEON_Q,
1537   NEON_SMLSL = NEON3DifferentFixed | 0x0000A000,
1538   NEON_SMLSL2 = NEON_SMLSL | NEON_Q,
1539   NEON_SMULL = NEON3DifferentFixed | 0x0000C000,
1540   NEON_SMULL2 = NEON_SMULL | NEON_Q,
1541   NEON_SSUBL = NEON3DifferentFixed | 0x00002000,
1542   NEON_SSUBL2 = NEON_SSUBL | NEON_Q,
1543   NEON_SSUBW = NEON3DifferentFixed | 0x00003000,
1544   NEON_SSUBW2 = NEON_SSUBW | NEON_Q,
1545   NEON_SQDMLAL = NEON3DifferentFixed | 0x00009000,
1546   NEON_SQDMLAL2 = NEON_SQDMLAL | NEON_Q,
1547   NEON_SQDMLSL = NEON3DifferentFixed | 0x0000B000,
1548   NEON_SQDMLSL2 = NEON_SQDMLSL | NEON_Q,
1549   NEON_SQDMULL = NEON3DifferentFixed | 0x0000D000,
1550   NEON_SQDMULL2 = NEON_SQDMULL | NEON_Q,
1551   NEON_SUBHN = NEON3DifferentFixed | 0x00006000,
1552   NEON_SUBHN2 = NEON_SUBHN | NEON_Q,
1553   NEON_UABAL = NEON_SABAL | NEON3SameUBit,
1554   NEON_UABAL2 = NEON_UABAL | NEON_Q,
1555   NEON_UABDL = NEON_SABDL | NEON3SameUBit,
1556   NEON_UABDL2 = NEON_UABDL | NEON_Q,
1557   NEON_UADDL = NEON_SADDL | NEON3SameUBit,
1558   NEON_UADDL2 = NEON_UADDL | NEON_Q,
1559   NEON_UADDW = NEON_SADDW | NEON3SameUBit,
1560   NEON_UADDW2 = NEON_UADDW | NEON_Q,
1561   NEON_UMLAL = NEON_SMLAL | NEON3SameUBit,
1562   NEON_UMLAL2 = NEON_UMLAL | NEON_Q,
1563   NEON_UMLSL = NEON_SMLSL | NEON3SameUBit,
1564   NEON_UMLSL2 = NEON_UMLSL | NEON_Q,
1565   NEON_UMULL = NEON_SMULL | NEON3SameUBit,
1566   NEON_UMULL2 = NEON_UMULL | NEON_Q,
1567   NEON_USUBL = NEON_SSUBL | NEON3SameUBit,
1568   NEON_USUBL2 = NEON_USUBL | NEON_Q,
1569   NEON_USUBW = NEON_SSUBW | NEON3SameUBit,
1570   NEON_USUBW2 = NEON_USUBW | NEON_Q
1571 };
1572 
1573 // NEON instructions operating across vectors.
1574 enum NEONAcrossLanesOp {
1575   NEONAcrossLanesFixed = 0x0E300800,
1576   NEONAcrossLanesFMask = 0x9F3E0C00,
1577   NEONAcrossLanesMask = 0xBF3FFC00,
1578   NEON_ADDV = NEONAcrossLanesFixed | 0x0001B000,
1579   NEON_SADDLV = NEONAcrossLanesFixed | 0x00003000,
1580   NEON_UADDLV = NEONAcrossLanesFixed | 0x20003000,
1581   NEON_SMAXV = NEONAcrossLanesFixed | 0x0000A000,
1582   NEON_SMINV = NEONAcrossLanesFixed | 0x0001A000,
1583   NEON_UMAXV = NEONAcrossLanesFixed | 0x2000A000,
1584   NEON_UMINV = NEONAcrossLanesFixed | 0x2001A000,
1585 
1586   // NEON floating point across instructions.
1587   NEONAcrossLanesFPFixed = NEONAcrossLanesFixed | 0x0000C000,
1588   NEONAcrossLanesFPFMask = NEONAcrossLanesFMask | 0x0000C000,
1589   NEONAcrossLanesFPMask = NEONAcrossLanesMask | 0x00800000,
1590 
1591   NEON_FMAXV = NEONAcrossLanesFPFixed | 0x2000F000,
1592   NEON_FMINV = NEONAcrossLanesFPFixed | 0x2080F000,
1593   NEON_FMAXNMV = NEONAcrossLanesFPFixed | 0x2000C000,
1594   NEON_FMINNMV = NEONAcrossLanesFPFixed | 0x2080C000
1595 };
1596 
1597 // NEON instructions with indexed element operand.
1598 enum NEONByIndexedElementOp {
1599   NEONByIndexedElementFixed = 0x0F000000,
1600   NEONByIndexedElementFMask = 0x9F000400,
1601   NEONByIndexedElementMask = 0xBF00F400,
1602   NEON_MUL_byelement = NEONByIndexedElementFixed | 0x00008000,
1603   NEON_MLA_byelement = NEONByIndexedElementFixed | 0x20000000,
1604   NEON_MLS_byelement = NEONByIndexedElementFixed | 0x20004000,
1605   NEON_SMULL_byelement = NEONByIndexedElementFixed | 0x0000A000,
1606   NEON_SMLAL_byelement = NEONByIndexedElementFixed | 0x00002000,
1607   NEON_SMLSL_byelement = NEONByIndexedElementFixed | 0x00006000,
1608   NEON_UMULL_byelement = NEONByIndexedElementFixed | 0x2000A000,
1609   NEON_UMLAL_byelement = NEONByIndexedElementFixed | 0x20002000,
1610   NEON_UMLSL_byelement = NEONByIndexedElementFixed | 0x20006000,
1611   NEON_SQDMULL_byelement = NEONByIndexedElementFixed | 0x0000B000,
1612   NEON_SQDMLAL_byelement = NEONByIndexedElementFixed | 0x00003000,
1613   NEON_SQDMLSL_byelement = NEONByIndexedElementFixed | 0x00007000,
1614   NEON_SQDMULH_byelement = NEONByIndexedElementFixed | 0x0000C000,
1615   NEON_SQRDMULH_byelement = NEONByIndexedElementFixed | 0x0000D000,
1616 
1617   // Floating point instructions.
1618   NEONByIndexedElementFPFixed = NEONByIndexedElementFixed | 0x00800000,
1619   NEONByIndexedElementFPMask = NEONByIndexedElementMask | 0x00800000,
1620   NEON_FMLA_byelement = NEONByIndexedElementFPFixed | 0x00001000,
1621   NEON_FMLS_byelement = NEONByIndexedElementFPFixed | 0x00005000,
1622   NEON_FMUL_byelement = NEONByIndexedElementFPFixed | 0x00009000,
1623   NEON_FMULX_byelement = NEONByIndexedElementFPFixed | 0x20009000
1624 };
1625 
1626 // NEON modified immediate.
1627 enum NEONModifiedImmediateOp {
1628   NEONModifiedImmediateFixed = 0x0F000400,
1629   NEONModifiedImmediateFMask = 0x9FF80400,
1630   NEONModifiedImmediateOpBit = 0x20000000,
1631   NEONModifiedImmediate_MOVI = NEONModifiedImmediateFixed | 0x00000000,
1632   NEONModifiedImmediate_MVNI = NEONModifiedImmediateFixed | 0x20000000,
1633   NEONModifiedImmediate_ORR = NEONModifiedImmediateFixed | 0x00001000,
1634   NEONModifiedImmediate_BIC = NEONModifiedImmediateFixed | 0x20001000
1635 };
1636 
1637 // NEON extract.
1638 enum NEONExtractOp {
1639   NEONExtractFixed = 0x2E000000,
1640   NEONExtractFMask = 0xBF208400,
1641   NEONExtractMask = 0xBFE08400,
1642   NEON_EXT = NEONExtractFixed | 0x00000000
1643 };
1644 
1645 enum NEONLoadStoreMultiOp {
1646   NEONLoadStoreMultiL = 0x00400000,
1647   NEONLoadStoreMulti1_1v = 0x00007000,
1648   NEONLoadStoreMulti1_2v = 0x0000A000,
1649   NEONLoadStoreMulti1_3v = 0x00006000,
1650   NEONLoadStoreMulti1_4v = 0x00002000,
1651   NEONLoadStoreMulti2 = 0x00008000,
1652   NEONLoadStoreMulti3 = 0x00004000,
1653   NEONLoadStoreMulti4 = 0x00000000
1654 };
1655 
1656 // NEON load/store multiple structures.
1657 enum NEONLoadStoreMultiStructOp {
1658   NEONLoadStoreMultiStructFixed = 0x0C000000,
1659   NEONLoadStoreMultiStructFMask = 0xBFBF0000,
1660   NEONLoadStoreMultiStructMask = 0xBFFFF000,
1661   NEONLoadStoreMultiStructStore = NEONLoadStoreMultiStructFixed,
1662   NEONLoadStoreMultiStructLoad =
1663       NEONLoadStoreMultiStructFixed | NEONLoadStoreMultiL,
1664   NEON_LD1_1v = NEONLoadStoreMultiStructLoad | NEONLoadStoreMulti1_1v,
1665   NEON_LD1_2v = NEONLoadStoreMultiStructLoad | NEONLoadStoreMulti1_2v,
1666   NEON_LD1_3v = NEONLoadStoreMultiStructLoad | NEONLoadStoreMulti1_3v,
1667   NEON_LD1_4v = NEONLoadStoreMultiStructLoad | NEONLoadStoreMulti1_4v,
1668   NEON_LD2 = NEONLoadStoreMultiStructLoad | NEONLoadStoreMulti2,
1669   NEON_LD3 = NEONLoadStoreMultiStructLoad | NEONLoadStoreMulti3,
1670   NEON_LD4 = NEONLoadStoreMultiStructLoad | NEONLoadStoreMulti4,
1671   NEON_ST1_1v = NEONLoadStoreMultiStructStore | NEONLoadStoreMulti1_1v,
1672   NEON_ST1_2v = NEONLoadStoreMultiStructStore | NEONLoadStoreMulti1_2v,
1673   NEON_ST1_3v = NEONLoadStoreMultiStructStore | NEONLoadStoreMulti1_3v,
1674   NEON_ST1_4v = NEONLoadStoreMultiStructStore | NEONLoadStoreMulti1_4v,
1675   NEON_ST2 = NEONLoadStoreMultiStructStore | NEONLoadStoreMulti2,
1676   NEON_ST3 = NEONLoadStoreMultiStructStore | NEONLoadStoreMulti3,
1677   NEON_ST4 = NEONLoadStoreMultiStructStore | NEONLoadStoreMulti4
1678 };
1679 
1680 // NEON load/store multiple structures with post-index addressing.
1681 enum NEONLoadStoreMultiStructPostIndexOp {
1682   NEONLoadStoreMultiStructPostIndexFixed = 0x0C800000,
1683   NEONLoadStoreMultiStructPostIndexFMask = 0xBFA00000,
1684   NEONLoadStoreMultiStructPostIndexMask = 0xBFE0F000,
1685   NEONLoadStoreMultiStructPostIndex = 0x00800000,
1686   NEON_LD1_1v_post = NEON_LD1_1v | NEONLoadStoreMultiStructPostIndex,
1687   NEON_LD1_2v_post = NEON_LD1_2v | NEONLoadStoreMultiStructPostIndex,
1688   NEON_LD1_3v_post = NEON_LD1_3v | NEONLoadStoreMultiStructPostIndex,
1689   NEON_LD1_4v_post = NEON_LD1_4v | NEONLoadStoreMultiStructPostIndex,
1690   NEON_LD2_post = NEON_LD2 | NEONLoadStoreMultiStructPostIndex,
1691   NEON_LD3_post = NEON_LD3 | NEONLoadStoreMultiStructPostIndex,
1692   NEON_LD4_post = NEON_LD4 | NEONLoadStoreMultiStructPostIndex,
1693   NEON_ST1_1v_post = NEON_ST1_1v | NEONLoadStoreMultiStructPostIndex,
1694   NEON_ST1_2v_post = NEON_ST1_2v | NEONLoadStoreMultiStructPostIndex,
1695   NEON_ST1_3v_post = NEON_ST1_3v | NEONLoadStoreMultiStructPostIndex,
1696   NEON_ST1_4v_post = NEON_ST1_4v | NEONLoadStoreMultiStructPostIndex,
1697   NEON_ST2_post = NEON_ST2 | NEONLoadStoreMultiStructPostIndex,
1698   NEON_ST3_post = NEON_ST3 | NEONLoadStoreMultiStructPostIndex,
1699   NEON_ST4_post = NEON_ST4 | NEONLoadStoreMultiStructPostIndex
1700 };
1701 
1702 enum NEONLoadStoreSingleOp {
1703   NEONLoadStoreSingle1 = 0x00000000,
1704   NEONLoadStoreSingle2 = 0x00200000,
1705   NEONLoadStoreSingle3 = 0x00002000,
1706   NEONLoadStoreSingle4 = 0x00202000,
1707   NEONLoadStoreSingleL = 0x00400000,
1708   NEONLoadStoreSingle_b = 0x00000000,
1709   NEONLoadStoreSingle_h = 0x00004000,
1710   NEONLoadStoreSingle_s = 0x00008000,
1711   NEONLoadStoreSingle_d = 0x00008400,
1712   NEONLoadStoreSingleAllLanes = 0x0000C000,
1713   NEONLoadStoreSingleLenMask = 0x00202000
1714 };
1715 
1716 // NEON load/store single structure.
1717 enum NEONLoadStoreSingleStructOp {
1718   NEONLoadStoreSingleStructFixed = 0x0D000000,
1719   NEONLoadStoreSingleStructFMask = 0xBF9F0000,
1720   NEONLoadStoreSingleStructMask = 0xBFFFE000,
1721   NEONLoadStoreSingleStructStore = NEONLoadStoreSingleStructFixed,
1722   NEONLoadStoreSingleStructLoad =
1723       NEONLoadStoreSingleStructFixed | NEONLoadStoreSingleL,
1724   NEONLoadStoreSingleStructLoad1 =
1725       NEONLoadStoreSingle1 | NEONLoadStoreSingleStructLoad,
1726   NEONLoadStoreSingleStructLoad2 =
1727       NEONLoadStoreSingle2 | NEONLoadStoreSingleStructLoad,
1728   NEONLoadStoreSingleStructLoad3 =
1729       NEONLoadStoreSingle3 | NEONLoadStoreSingleStructLoad,
1730   NEONLoadStoreSingleStructLoad4 =
1731       NEONLoadStoreSingle4 | NEONLoadStoreSingleStructLoad,
1732   NEONLoadStoreSingleStructStore1 =
1733       NEONLoadStoreSingle1 | NEONLoadStoreSingleStructFixed,
1734   NEONLoadStoreSingleStructStore2 =
1735       NEONLoadStoreSingle2 | NEONLoadStoreSingleStructFixed,
1736   NEONLoadStoreSingleStructStore3 =
1737       NEONLoadStoreSingle3 | NEONLoadStoreSingleStructFixed,
1738   NEONLoadStoreSingleStructStore4 =
1739       NEONLoadStoreSingle4 | NEONLoadStoreSingleStructFixed,
1740   NEON_LD1_b = NEONLoadStoreSingleStructLoad1 | NEONLoadStoreSingle_b,
1741   NEON_LD1_h = NEONLoadStoreSingleStructLoad1 | NEONLoadStoreSingle_h,
1742   NEON_LD1_s = NEONLoadStoreSingleStructLoad1 | NEONLoadStoreSingle_s,
1743   NEON_LD1_d = NEONLoadStoreSingleStructLoad1 | NEONLoadStoreSingle_d,
1744   NEON_LD1R = NEONLoadStoreSingleStructLoad1 | NEONLoadStoreSingleAllLanes,
1745   NEON_ST1_b = NEONLoadStoreSingleStructStore1 | NEONLoadStoreSingle_b,
1746   NEON_ST1_h = NEONLoadStoreSingleStructStore1 | NEONLoadStoreSingle_h,
1747   NEON_ST1_s = NEONLoadStoreSingleStructStore1 | NEONLoadStoreSingle_s,
1748   NEON_ST1_d = NEONLoadStoreSingleStructStore1 | NEONLoadStoreSingle_d,
1749 
1750   NEON_LD2_b = NEONLoadStoreSingleStructLoad2 | NEONLoadStoreSingle_b,
1751   NEON_LD2_h = NEONLoadStoreSingleStructLoad2 | NEONLoadStoreSingle_h,
1752   NEON_LD2_s = NEONLoadStoreSingleStructLoad2 | NEONLoadStoreSingle_s,
1753   NEON_LD2_d = NEONLoadStoreSingleStructLoad2 | NEONLoadStoreSingle_d,
1754   NEON_LD2R = NEONLoadStoreSingleStructLoad2 | NEONLoadStoreSingleAllLanes,
1755   NEON_ST2_b = NEONLoadStoreSingleStructStore2 | NEONLoadStoreSingle_b,
1756   NEON_ST2_h = NEONLoadStoreSingleStructStore2 | NEONLoadStoreSingle_h,
1757   NEON_ST2_s = NEONLoadStoreSingleStructStore2 | NEONLoadStoreSingle_s,
1758   NEON_ST2_d = NEONLoadStoreSingleStructStore2 | NEONLoadStoreSingle_d,
1759 
1760   NEON_LD3_b = NEONLoadStoreSingleStructLoad3 | NEONLoadStoreSingle_b,
1761   NEON_LD3_h = NEONLoadStoreSingleStructLoad3 | NEONLoadStoreSingle_h,
1762   NEON_LD3_s = NEONLoadStoreSingleStructLoad3 | NEONLoadStoreSingle_s,
1763   NEON_LD3_d = NEONLoadStoreSingleStructLoad3 | NEONLoadStoreSingle_d,
1764   NEON_LD3R = NEONLoadStoreSingleStructLoad3 | NEONLoadStoreSingleAllLanes,
1765   NEON_ST3_b = NEONLoadStoreSingleStructStore3 | NEONLoadStoreSingle_b,
1766   NEON_ST3_h = NEONLoadStoreSingleStructStore3 | NEONLoadStoreSingle_h,
1767   NEON_ST3_s = NEONLoadStoreSingleStructStore3 | NEONLoadStoreSingle_s,
1768   NEON_ST3_d = NEONLoadStoreSingleStructStore3 | NEONLoadStoreSingle_d,
1769 
1770   NEON_LD4_b = NEONLoadStoreSingleStructLoad4 | NEONLoadStoreSingle_b,
1771   NEON_LD4_h = NEONLoadStoreSingleStructLoad4 | NEONLoadStoreSingle_h,
1772   NEON_LD4_s = NEONLoadStoreSingleStructLoad4 | NEONLoadStoreSingle_s,
1773   NEON_LD4_d = NEONLoadStoreSingleStructLoad4 | NEONLoadStoreSingle_d,
1774   NEON_LD4R = NEONLoadStoreSingleStructLoad4 | NEONLoadStoreSingleAllLanes,
1775   NEON_ST4_b = NEONLoadStoreSingleStructStore4 | NEONLoadStoreSingle_b,
1776   NEON_ST4_h = NEONLoadStoreSingleStructStore4 | NEONLoadStoreSingle_h,
1777   NEON_ST4_s = NEONLoadStoreSingleStructStore4 | NEONLoadStoreSingle_s,
1778   NEON_ST4_d = NEONLoadStoreSingleStructStore4 | NEONLoadStoreSingle_d
1779 };
1780 
1781 // NEON load/store single structure with post-index addressing.
1782 enum NEONLoadStoreSingleStructPostIndexOp {
1783   NEONLoadStoreSingleStructPostIndexFixed = 0x0D800000,
1784   NEONLoadStoreSingleStructPostIndexFMask = 0xBF800000,
1785   NEONLoadStoreSingleStructPostIndexMask = 0xBFE0E000,
1786   NEONLoadStoreSingleStructPostIndex = 0x00800000,
1787   NEON_LD1_b_post = NEON_LD1_b | NEONLoadStoreSingleStructPostIndex,
1788   NEON_LD1_h_post = NEON_LD1_h | NEONLoadStoreSingleStructPostIndex,
1789   NEON_LD1_s_post = NEON_LD1_s | NEONLoadStoreSingleStructPostIndex,
1790   NEON_LD1_d_post = NEON_LD1_d | NEONLoadStoreSingleStructPostIndex,
1791   NEON_LD1R_post = NEON_LD1R | NEONLoadStoreSingleStructPostIndex,
1792   NEON_ST1_b_post = NEON_ST1_b | NEONLoadStoreSingleStructPostIndex,
1793   NEON_ST1_h_post = NEON_ST1_h | NEONLoadStoreSingleStructPostIndex,
1794   NEON_ST1_s_post = NEON_ST1_s | NEONLoadStoreSingleStructPostIndex,
1795   NEON_ST1_d_post = NEON_ST1_d | NEONLoadStoreSingleStructPostIndex,
1796 
1797   NEON_LD2_b_post = NEON_LD2_b | NEONLoadStoreSingleStructPostIndex,
1798   NEON_LD2_h_post = NEON_LD2_h | NEONLoadStoreSingleStructPostIndex,
1799   NEON_LD2_s_post = NEON_LD2_s | NEONLoadStoreSingleStructPostIndex,
1800   NEON_LD2_d_post = NEON_LD2_d | NEONLoadStoreSingleStructPostIndex,
1801   NEON_LD2R_post = NEON_LD2R | NEONLoadStoreSingleStructPostIndex,
1802   NEON_ST2_b_post = NEON_ST2_b | NEONLoadStoreSingleStructPostIndex,
1803   NEON_ST2_h_post = NEON_ST2_h | NEONLoadStoreSingleStructPostIndex,
1804   NEON_ST2_s_post = NEON_ST2_s | NEONLoadStoreSingleStructPostIndex,
1805   NEON_ST2_d_post = NEON_ST2_d | NEONLoadStoreSingleStructPostIndex,
1806 
1807   NEON_LD3_b_post = NEON_LD3_b | NEONLoadStoreSingleStructPostIndex,
1808   NEON_LD3_h_post = NEON_LD3_h | NEONLoadStoreSingleStructPostIndex,
1809   NEON_LD3_s_post = NEON_LD3_s | NEONLoadStoreSingleStructPostIndex,
1810   NEON_LD3_d_post = NEON_LD3_d | NEONLoadStoreSingleStructPostIndex,
1811   NEON_LD3R_post = NEON_LD3R | NEONLoadStoreSingleStructPostIndex,
1812   NEON_ST3_b_post = NEON_ST3_b | NEONLoadStoreSingleStructPostIndex,
1813   NEON_ST3_h_post = NEON_ST3_h | NEONLoadStoreSingleStructPostIndex,
1814   NEON_ST3_s_post = NEON_ST3_s | NEONLoadStoreSingleStructPostIndex,
1815   NEON_ST3_d_post = NEON_ST3_d | NEONLoadStoreSingleStructPostIndex,
1816 
1817   NEON_LD4_b_post = NEON_LD4_b | NEONLoadStoreSingleStructPostIndex,
1818   NEON_LD4_h_post = NEON_LD4_h | NEONLoadStoreSingleStructPostIndex,
1819   NEON_LD4_s_post = NEON_LD4_s | NEONLoadStoreSingleStructPostIndex,
1820   NEON_LD4_d_post = NEON_LD4_d | NEONLoadStoreSingleStructPostIndex,
1821   NEON_LD4R_post = NEON_LD4R | NEONLoadStoreSingleStructPostIndex,
1822   NEON_ST4_b_post = NEON_ST4_b | NEONLoadStoreSingleStructPostIndex,
1823   NEON_ST4_h_post = NEON_ST4_h | NEONLoadStoreSingleStructPostIndex,
1824   NEON_ST4_s_post = NEON_ST4_s | NEONLoadStoreSingleStructPostIndex,
1825   NEON_ST4_d_post = NEON_ST4_d | NEONLoadStoreSingleStructPostIndex
1826 };
1827 
1828 // NEON register copy.
1829 enum NEONCopyOp {
1830   NEONCopyFixed = 0x0E000400,
1831   NEONCopyFMask = 0x9FE08400,
1832   NEONCopyMask = 0x3FE08400,
1833   NEONCopyInsElementMask = NEONCopyMask | 0x40000000,
1834   NEONCopyInsGeneralMask = NEONCopyMask | 0x40007800,
1835   NEONCopyDupElementMask = NEONCopyMask | 0x20007800,
1836   NEONCopyDupGeneralMask = NEONCopyDupElementMask,
1837   NEONCopyUmovMask = NEONCopyMask | 0x20007800,
1838   NEONCopySmovMask = NEONCopyMask | 0x20007800,
1839   NEON_INS_ELEMENT = NEONCopyFixed | 0x60000000,
1840   NEON_INS_GENERAL = NEONCopyFixed | 0x40001800,
1841   NEON_DUP_ELEMENT = NEONCopyFixed | 0x00000000,
1842   NEON_DUP_GENERAL = NEONCopyFixed | 0x00000800,
1843   NEON_SMOV = NEONCopyFixed | 0x00002800,
1844   NEON_UMOV = NEONCopyFixed | 0x00003800
1845 };
1846 
1847 // NEON scalar instructions with indexed element operand.
1848 enum NEONScalarByIndexedElementOp {
1849   NEONScalarByIndexedElementFixed = 0x5F000000,
1850   NEONScalarByIndexedElementFMask = 0xDF000400,
1851   NEONScalarByIndexedElementMask = 0xFF00F400,
1852   NEON_SQDMLAL_byelement_scalar = NEON_Q | NEONScalar | NEON_SQDMLAL_byelement,
1853   NEON_SQDMLSL_byelement_scalar = NEON_Q | NEONScalar | NEON_SQDMLSL_byelement,
1854   NEON_SQDMULL_byelement_scalar = NEON_Q | NEONScalar | NEON_SQDMULL_byelement,
1855   NEON_SQDMULH_byelement_scalar = NEON_Q | NEONScalar | NEON_SQDMULH_byelement,
1856   NEON_SQRDMULH_byelement_scalar =
1857       NEON_Q | NEONScalar | NEON_SQRDMULH_byelement,
1858 
1859   // Floating point instructions.
1860   NEONScalarByIndexedElementFPFixed =
1861       NEONScalarByIndexedElementFixed | 0x00800000,
1862   NEONScalarByIndexedElementFPMask =
1863       NEONScalarByIndexedElementMask | 0x00800000,
1864   NEON_FMLA_byelement_scalar = NEON_Q | NEONScalar | NEON_FMLA_byelement,
1865   NEON_FMLS_byelement_scalar = NEON_Q | NEONScalar | NEON_FMLS_byelement,
1866   NEON_FMUL_byelement_scalar = NEON_Q | NEONScalar | NEON_FMUL_byelement,
1867   NEON_FMULX_byelement_scalar = NEON_Q | NEONScalar | NEON_FMULX_byelement
1868 };
1869 
1870 // NEON shift immediate.
1871 enum NEONShiftImmediateOp {
1872   NEONShiftImmediateFixed = 0x0F000400,
1873   NEONShiftImmediateFMask = 0x9F800400,
1874   NEONShiftImmediateMask = 0xBF80FC00,
1875   NEONShiftImmediateUBit = 0x20000000,
1876   NEON_SHL = NEONShiftImmediateFixed | 0x00005000,
1877   NEON_SSHLL = NEONShiftImmediateFixed | 0x0000A000,
1878   NEON_USHLL = NEONShiftImmediateFixed | 0x2000A000,
1879   NEON_SLI = NEONShiftImmediateFixed | 0x20005000,
1880   NEON_SRI = NEONShiftImmediateFixed | 0x20004000,
1881   NEON_SHRN = NEONShiftImmediateFixed | 0x00008000,
1882   NEON_RSHRN = NEONShiftImmediateFixed | 0x00008800,
1883   NEON_UQSHRN = NEONShiftImmediateFixed | 0x20009000,
1884   NEON_UQRSHRN = NEONShiftImmediateFixed | 0x20009800,
1885   NEON_SQSHRN = NEONShiftImmediateFixed | 0x00009000,
1886   NEON_SQRSHRN = NEONShiftImmediateFixed | 0x00009800,
1887   NEON_SQSHRUN = NEONShiftImmediateFixed | 0x20008000,
1888   NEON_SQRSHRUN = NEONShiftImmediateFixed | 0x20008800,
1889   NEON_SSHR = NEONShiftImmediateFixed | 0x00000000,
1890   NEON_SRSHR = NEONShiftImmediateFixed | 0x00002000,
1891   NEON_USHR = NEONShiftImmediateFixed | 0x20000000,
1892   NEON_URSHR = NEONShiftImmediateFixed | 0x20002000,
1893   NEON_SSRA = NEONShiftImmediateFixed | 0x00001000,
1894   NEON_SRSRA = NEONShiftImmediateFixed | 0x00003000,
1895   NEON_USRA = NEONShiftImmediateFixed | 0x20001000,
1896   NEON_URSRA = NEONShiftImmediateFixed | 0x20003000,
1897   NEON_SQSHLU = NEONShiftImmediateFixed | 0x20006000,
1898   NEON_SCVTF_imm = NEONShiftImmediateFixed | 0x0000E000,
1899   NEON_UCVTF_imm = NEONShiftImmediateFixed | 0x2000E000,
1900   NEON_FCVTZS_imm = NEONShiftImmediateFixed | 0x0000F800,
1901   NEON_FCVTZU_imm = NEONShiftImmediateFixed | 0x2000F800,
1902   NEON_SQSHL_imm = NEONShiftImmediateFixed | 0x00007000,
1903   NEON_UQSHL_imm = NEONShiftImmediateFixed | 0x20007000
1904 };
1905 
1906 // NEON scalar register copy.
1907 enum NEONScalarCopyOp {
1908   NEONScalarCopyFixed = 0x5E000400,
1909   NEONScalarCopyFMask = 0xDFE08400,
1910   NEONScalarCopyMask = 0xFFE0FC00,
1911   NEON_DUP_ELEMENT_scalar = NEON_Q | NEONScalar | NEON_DUP_ELEMENT
1912 };
1913 
1914 // NEON scalar pairwise instructions.
1915 enum NEONScalarPairwiseOp {
1916   NEONScalarPairwiseFixed = 0x5E300800,
1917   NEONScalarPairwiseFMask = 0xDF3E0C00,
1918   NEONScalarPairwiseMask = 0xFFB1F800,
1919   NEON_ADDP_scalar = NEONScalarPairwiseFixed | 0x0081B000,
1920   NEON_FMAXNMP_scalar = NEONScalarPairwiseFixed | 0x2000C000,
1921   NEON_FMINNMP_scalar = NEONScalarPairwiseFixed | 0x2080C000,
1922   NEON_FADDP_scalar = NEONScalarPairwiseFixed | 0x2000D000,
1923   NEON_FMAXP_scalar = NEONScalarPairwiseFixed | 0x2000F000,
1924   NEON_FMINP_scalar = NEONScalarPairwiseFixed | 0x2080F000
1925 };
1926 
1927 // NEON scalar shift immediate.
1928 enum NEONScalarShiftImmediateOp {
1929   NEONScalarShiftImmediateFixed = 0x5F000400,
1930   NEONScalarShiftImmediateFMask = 0xDF800400,
1931   NEONScalarShiftImmediateMask = 0xFF80FC00,
1932   NEON_SHL_scalar = NEON_Q | NEONScalar | NEON_SHL,
1933   NEON_SLI_scalar = NEON_Q | NEONScalar | NEON_SLI,
1934   NEON_SRI_scalar = NEON_Q | NEONScalar | NEON_SRI,
1935   NEON_SSHR_scalar = NEON_Q | NEONScalar | NEON_SSHR,
1936   NEON_USHR_scalar = NEON_Q | NEONScalar | NEON_USHR,
1937   NEON_SRSHR_scalar = NEON_Q | NEONScalar | NEON_SRSHR,
1938   NEON_URSHR_scalar = NEON_Q | NEONScalar | NEON_URSHR,
1939   NEON_SSRA_scalar = NEON_Q | NEONScalar | NEON_SSRA,
1940   NEON_USRA_scalar = NEON_Q | NEONScalar | NEON_USRA,
1941   NEON_SRSRA_scalar = NEON_Q | NEONScalar | NEON_SRSRA,
1942   NEON_URSRA_scalar = NEON_Q | NEONScalar | NEON_URSRA,
1943   NEON_UQSHRN_scalar = NEON_Q | NEONScalar | NEON_UQSHRN,
1944   NEON_UQRSHRN_scalar = NEON_Q | NEONScalar | NEON_UQRSHRN,
1945   NEON_SQSHRN_scalar = NEON_Q | NEONScalar | NEON_SQSHRN,
1946   NEON_SQRSHRN_scalar = NEON_Q | NEONScalar | NEON_SQRSHRN,
1947   NEON_SQSHRUN_scalar = NEON_Q | NEONScalar | NEON_SQSHRUN,
1948   NEON_SQRSHRUN_scalar = NEON_Q | NEONScalar | NEON_SQRSHRUN,
1949   NEON_SQSHLU_scalar = NEON_Q | NEONScalar | NEON_SQSHLU,
1950   NEON_SQSHL_imm_scalar = NEON_Q | NEONScalar | NEON_SQSHL_imm,
1951   NEON_UQSHL_imm_scalar = NEON_Q | NEONScalar | NEON_UQSHL_imm,
1952   NEON_SCVTF_imm_scalar = NEON_Q | NEONScalar | NEON_SCVTF_imm,
1953   NEON_UCVTF_imm_scalar = NEON_Q | NEONScalar | NEON_UCVTF_imm,
1954   NEON_FCVTZS_imm_scalar = NEON_Q | NEONScalar | NEON_FCVTZS_imm,
1955   NEON_FCVTZU_imm_scalar = NEON_Q | NEONScalar | NEON_FCVTZU_imm
1956 };
1957 
1958 // NEON table.
1959 enum NEONTableOp {
1960   NEONTableFixed = 0x0E000000,
1961   NEONTableFMask = 0xBF208C00,
1962   NEONTableExt = 0x00001000,
1963   NEONTableMask = 0xBF20FC00,
1964   NEON_TBL_1v = NEONTableFixed | 0x00000000,
1965   NEON_TBL_2v = NEONTableFixed | 0x00002000,
1966   NEON_TBL_3v = NEONTableFixed | 0x00004000,
1967   NEON_TBL_4v = NEONTableFixed | 0x00006000,
1968   NEON_TBX_1v = NEON_TBL_1v | NEONTableExt,
1969   NEON_TBX_2v = NEON_TBL_2v | NEONTableExt,
1970   NEON_TBX_3v = NEON_TBL_3v | NEONTableExt,
1971   NEON_TBX_4v = NEON_TBL_4v | NEONTableExt
1972 };
1973 
1974 // NEON perm.
1975 enum NEONPermOp {
1976   NEONPermFixed = 0x0E000800,
1977   NEONPermFMask = 0xBF208C00,
1978   NEONPermMask = 0x3F20FC00,
1979   NEON_UZP1 = NEONPermFixed | 0x00001000,
1980   NEON_TRN1 = NEONPermFixed | 0x00002000,
1981   NEON_ZIP1 = NEONPermFixed | 0x00003000,
1982   NEON_UZP2 = NEONPermFixed | 0x00005000,
1983   NEON_TRN2 = NEONPermFixed | 0x00006000,
1984   NEON_ZIP2 = NEONPermFixed | 0x00007000
1985 };
1986 
1987 // NEON scalar instructions with two register operands.
1988 enum NEONScalar2RegMiscOp {
1989   NEONScalar2RegMiscFixed = 0x5E200800,
1990   NEONScalar2RegMiscFMask = 0xDF3E0C00,
1991   NEONScalar2RegMiscMask = NEON_Q | NEONScalar | NEON2RegMiscMask,
1992   NEON_CMGT_zero_scalar = NEON_Q | NEONScalar | NEON_CMGT_zero,
1993   NEON_CMEQ_zero_scalar = NEON_Q | NEONScalar | NEON_CMEQ_zero,
1994   NEON_CMLT_zero_scalar = NEON_Q | NEONScalar | NEON_CMLT_zero,
1995   NEON_CMGE_zero_scalar = NEON_Q | NEONScalar | NEON_CMGE_zero,
1996   NEON_CMLE_zero_scalar = NEON_Q | NEONScalar | NEON_CMLE_zero,
1997   NEON_ABS_scalar = NEON_Q | NEONScalar | NEON_ABS,
1998   NEON_SQABS_scalar = NEON_Q | NEONScalar | NEON_SQABS,
1999   NEON_NEG_scalar = NEON_Q | NEONScalar | NEON_NEG,
2000   NEON_SQNEG_scalar = NEON_Q | NEONScalar | NEON_SQNEG,
2001   NEON_SQXTN_scalar = NEON_Q | NEONScalar | NEON_SQXTN,
2002   NEON_UQXTN_scalar = NEON_Q | NEONScalar | NEON_UQXTN,
2003   NEON_SQXTUN_scalar = NEON_Q | NEONScalar | NEON_SQXTUN,
2004   NEON_SUQADD_scalar = NEON_Q | NEONScalar | NEON_SUQADD,
2005   NEON_USQADD_scalar = NEON_Q | NEONScalar | NEON_USQADD,
2006 
2007   NEONScalar2RegMiscOpcode = NEON2RegMiscOpcode,
2008   NEON_NEG_scalar_opcode = NEON_NEG_scalar & NEONScalar2RegMiscOpcode,
2009 
2010   NEONScalar2RegMiscFPMask = NEONScalar2RegMiscMask | 0x00800000,
2011   NEON_FRSQRTE_scalar = NEON_Q | NEONScalar | NEON_FRSQRTE,
2012   NEON_FRECPE_scalar = NEON_Q | NEONScalar | NEON_FRECPE,
2013   NEON_SCVTF_scalar = NEON_Q | NEONScalar | NEON_SCVTF,
2014   NEON_UCVTF_scalar = NEON_Q | NEONScalar | NEON_UCVTF,
2015   NEON_FCMGT_zero_scalar = NEON_Q | NEONScalar | NEON_FCMGT_zero,
2016   NEON_FCMEQ_zero_scalar = NEON_Q | NEONScalar | NEON_FCMEQ_zero,
2017   NEON_FCMLT_zero_scalar = NEON_Q | NEONScalar | NEON_FCMLT_zero,
2018   NEON_FCMGE_zero_scalar = NEON_Q | NEONScalar | NEON_FCMGE_zero,
2019   NEON_FCMLE_zero_scalar = NEON_Q | NEONScalar | NEON_FCMLE_zero,
2020   NEON_FRECPX_scalar = NEONScalar2RegMiscFixed | 0x0081F000,
2021   NEON_FCVTNS_scalar = NEON_Q | NEONScalar | NEON_FCVTNS,
2022   NEON_FCVTNU_scalar = NEON_Q | NEONScalar | NEON_FCVTNU,
2023   NEON_FCVTPS_scalar = NEON_Q | NEONScalar | NEON_FCVTPS,
2024   NEON_FCVTPU_scalar = NEON_Q | NEONScalar | NEON_FCVTPU,
2025   NEON_FCVTMS_scalar = NEON_Q | NEONScalar | NEON_FCVTMS,
2026   NEON_FCVTMU_scalar = NEON_Q | NEONScalar | NEON_FCVTMU,
2027   NEON_FCVTZS_scalar = NEON_Q | NEONScalar | NEON_FCVTZS,
2028   NEON_FCVTZU_scalar = NEON_Q | NEONScalar | NEON_FCVTZU,
2029   NEON_FCVTAS_scalar = NEON_Q | NEONScalar | NEON_FCVTAS,
2030   NEON_FCVTAU_scalar = NEON_Q | NEONScalar | NEON_FCVTAU,
2031   NEON_FCVTXN_scalar = NEON_Q | NEONScalar | NEON_FCVTXN
2032 };
2033 
2034 // NEON scalar instructions with three same-type operands.
2035 enum NEONScalar3SameOp {
2036   NEONScalar3SameFixed = 0x5E200400,
2037   NEONScalar3SameFMask = 0xDF200400,
2038   NEONScalar3SameMask = 0xFF20FC00,
2039   NEON_ADD_scalar = NEON_Q | NEONScalar | NEON_ADD,
2040   NEON_CMEQ_scalar = NEON_Q | NEONScalar | NEON_CMEQ,
2041   NEON_CMGE_scalar = NEON_Q | NEONScalar | NEON_CMGE,
2042   NEON_CMGT_scalar = NEON_Q | NEONScalar | NEON_CMGT,
2043   NEON_CMHI_scalar = NEON_Q | NEONScalar | NEON_CMHI,
2044   NEON_CMHS_scalar = NEON_Q | NEONScalar | NEON_CMHS,
2045   NEON_CMTST_scalar = NEON_Q | NEONScalar | NEON_CMTST,
2046   NEON_SUB_scalar = NEON_Q | NEONScalar | NEON_SUB,
2047   NEON_UQADD_scalar = NEON_Q | NEONScalar | NEON_UQADD,
2048   NEON_SQADD_scalar = NEON_Q | NEONScalar | NEON_SQADD,
2049   NEON_UQSUB_scalar = NEON_Q | NEONScalar | NEON_UQSUB,
2050   NEON_SQSUB_scalar = NEON_Q | NEONScalar | NEON_SQSUB,
2051   NEON_USHL_scalar = NEON_Q | NEONScalar | NEON_USHL,
2052   NEON_SSHL_scalar = NEON_Q | NEONScalar | NEON_SSHL,
2053   NEON_UQSHL_scalar = NEON_Q | NEONScalar | NEON_UQSHL,
2054   NEON_SQSHL_scalar = NEON_Q | NEONScalar | NEON_SQSHL,
2055   NEON_URSHL_scalar = NEON_Q | NEONScalar | NEON_URSHL,
2056   NEON_SRSHL_scalar = NEON_Q | NEONScalar | NEON_SRSHL,
2057   NEON_UQRSHL_scalar = NEON_Q | NEONScalar | NEON_UQRSHL,
2058   NEON_SQRSHL_scalar = NEON_Q | NEONScalar | NEON_SQRSHL,
2059   NEON_SQDMULH_scalar = NEON_Q | NEONScalar | NEON_SQDMULH,
2060   NEON_SQRDMULH_scalar = NEON_Q | NEONScalar | NEON_SQRDMULH,
2061 
2062   // NEON floating point scalar instructions with three same-type operands.
2063   NEONScalar3SameFPFixed = NEONScalar3SameFixed | 0x0000C000,
2064   NEONScalar3SameFPFMask = NEONScalar3SameFMask | 0x0000C000,
2065   NEONScalar3SameFPMask = NEONScalar3SameMask | 0x00800000,
2066   NEON_FACGE_scalar = NEON_Q | NEONScalar | NEON_FACGE,
2067   NEON_FACGT_scalar = NEON_Q | NEONScalar | NEON_FACGT,
2068   NEON_FCMEQ_scalar = NEON_Q | NEONScalar | NEON_FCMEQ,
2069   NEON_FCMGE_scalar = NEON_Q | NEONScalar | NEON_FCMGE,
2070   NEON_FCMGT_scalar = NEON_Q | NEONScalar | NEON_FCMGT,
2071   NEON_FMULX_scalar = NEON_Q | NEONScalar | NEON_FMULX,
2072   NEON_FRECPS_scalar = NEON_Q | NEONScalar | NEON_FRECPS,
2073   NEON_FRSQRTS_scalar = NEON_Q | NEONScalar | NEON_FRSQRTS,
2074   NEON_FABD_scalar = NEON_Q | NEONScalar | NEON_FABD
2075 };
2076 
2077 // NEON scalar instructions with three different-type operands.
2078 enum NEONScalar3DiffOp {
2079   NEONScalar3DiffFixed = 0x5E200000,
2080   NEONScalar3DiffFMask = 0xDF200C00,
2081   NEONScalar3DiffMask = NEON_Q | NEONScalar | NEON3DifferentMask,
2082   NEON_SQDMLAL_scalar = NEON_Q | NEONScalar | NEON_SQDMLAL,
2083   NEON_SQDMLSL_scalar = NEON_Q | NEONScalar | NEON_SQDMLSL,
2084   NEON_SQDMULL_scalar = NEON_Q | NEONScalar | NEON_SQDMULL
2085 };
2086 
2087 // Unimplemented and unallocated instructions. These are defined to make fixed
2088 // bit assertion easier.
2089 enum UnimplementedOp {
2090   UnimplementedFixed = 0x00000000,
2091   UnimplementedFMask = 0x00000000
2092 };
2093 
2094 enum UnallocatedOp {
2095   UnallocatedFixed = 0x00000000,
2096   UnallocatedFMask = 0x00000000
2097 };
2098 
2099 }  // namespace internal
2100 }  // namespace v8
2101 
2102 #endif  // V8_ARM64_CONSTANTS_ARM64_H_
2103