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  1. /* ARM assembler/disassembler support.
  2.    Copyright 2004, 2010, 2011 Free Software Foundation, Inc.
  3.  
  4.    This file is part of GDB and GAS.
  5.  
  6.    GDB and GAS are free software; you can redistribute it and/or
  7.    modify it under the terms of the GNU General Public License as
  8.    published by the Free Software Foundation; either version 3, or (at
  9.    your option) any later version.
  10.  
  11.    GDB and GAS are distributed in the hope that it will be useful, but
  12.    WITHOUT ANY WARRANTY; without even the implied warranty of
  13.    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14.    General Public License for more details.
  15.  
  16.    You should have received a copy of the GNU General Public License
  17.    along with GDB or GAS; see the file COPYING3.  If not, write to the
  18.    Free Software Foundation, 51 Franklin Street - Fifth Floor, Boston,
  19.    MA 02110-1301, USA.  */
  20.  
  21. /* The following bitmasks control CPU extensions:  */
  22. #define ARM_EXT_V1       0x00000001     /* All processors (core set).  */
  23. #define ARM_EXT_V2       0x00000002     /* Multiply instructions.  */
  24. #define ARM_EXT_V2S      0x00000004     /* SWP instructions.       */
  25. #define ARM_EXT_V3       0x00000008     /* MSR MRS.                */
  26. #define ARM_EXT_V3M      0x00000010     /* Allow long multiplies.  */
  27. #define ARM_EXT_V4       0x00000020     /* Allow half word loads.  */
  28. #define ARM_EXT_V4T      0x00000040     /* Thumb.                  */
  29. #define ARM_EXT_V5       0x00000080     /* Allow CLZ, etc.         */
  30. #define ARM_EXT_V5T      0x00000100     /* Improved interworking.  */
  31. #define ARM_EXT_V5ExP    0x00000200     /* DSP core set.           */
  32. #define ARM_EXT_V5E      0x00000400     /* DSP Double transfers.   */
  33. #define ARM_EXT_V5J      0x00000800     /* Jazelle extension.      */
  34. #define ARM_EXT_V6       0x00001000     /* ARM V6.                 */
  35. #define ARM_EXT_V6K      0x00002000     /* ARM V6K.                */
  36. /*                       0x00004000        Was ARM V6Z.            */
  37. #define ARM_EXT_V8       0x00004000     /* is now ARMv8.           */
  38. #define ARM_EXT_V6T2     0x00008000     /* Thumb-2.                */
  39. #define ARM_EXT_DIV      0x00010000     /* Integer division.       */
  40. /* The 'M' in Arm V7M stands for Microcontroller.
  41.    On earlier architecture variants it stands for Multiply.  */
  42. #define ARM_EXT_V5E_NOTM 0x00020000     /* Arm V5E but not Arm V7M. */
  43. #define ARM_EXT_V6_NOTM  0x00040000     /* Arm V6 but not Arm V7M. */
  44. #define ARM_EXT_V7       0x00080000     /* Arm V7.                 */
  45. #define ARM_EXT_V7A      0x00100000     /* Arm V7A.                */
  46. #define ARM_EXT_V7R      0x00200000     /* Arm V7R.                */
  47. #define ARM_EXT_V7M      0x00400000     /* Arm V7M.                */
  48. #define ARM_EXT_V6M      0x00800000     /* ARM V6M.                 */
  49. #define ARM_EXT_BARRIER  0x01000000     /* DSB/DMB/ISB.             */
  50. #define ARM_EXT_THUMB_MSR 0x02000000    /* Thumb MSR/MRS.           */
  51. #define ARM_EXT_V6_DSP 0x04000000       /* ARM v6 (DSP-related),
  52.                                            not in v7-M.  */
  53. #define ARM_EXT_MP       0x08000000     /* Multiprocessing Extensions.  */
  54. #define ARM_EXT_SEC      0x10000000     /* Security extensions.  */
  55. #define ARM_EXT_OS       0x20000000     /* OS Extensions.  */
  56. #define ARM_EXT_ADIV     0x40000000     /* Integer divide extensions in ARM
  57.                                            state.  */
  58. #define ARM_EXT_VIRT     0x80000000     /* Virtualization extensions.  */
  59.  
  60. /* Co-processor space extensions.  */
  61. #define ARM_CEXT_XSCALE   0x00000001    /* Allow MIA etc.          */
  62. #define ARM_CEXT_MAVERICK 0x00000002    /* Use Cirrus/DSP coprocessor.  */
  63. #define ARM_CEXT_IWMMXT   0x00000004    /* Intel Wireless MMX technology coprocessor.   */
  64. #define ARM_CEXT_IWMMXT2  0x00000008    /* Intel Wireless MMX technology coprocessor version 2.   */
  65.  
  66. #define FPU_ENDIAN_PURE  0x80000000     /* Pure-endian doubles.       */
  67. #define FPU_ENDIAN_BIG   0              /* Double words-big-endian.   */
  68. #define FPU_FPA_EXT_V1   0x40000000     /* Base FPA instruction set.  */
  69. #define FPU_FPA_EXT_V2   0x20000000     /* LFM/SFM.                   */
  70. #define FPU_MAVERICK     0x10000000     /* Cirrus Maverick.           */
  71. #define FPU_VFP_EXT_V1xD 0x08000000     /* Base VFP instruction set.  */
  72. #define FPU_VFP_EXT_V1   0x04000000     /* Double-precision insns.    */
  73. #define FPU_VFP_EXT_V2   0x02000000     /* ARM10E VFPr1.              */
  74. #define FPU_VFP_EXT_V3xD 0x01000000     /* VFPv3 single-precision.    */
  75. #define FPU_VFP_EXT_V3   0x00800000     /* VFPv3 double-precision.    */
  76. #define FPU_NEON_EXT_V1  0x00400000     /* Neon (SIMD) insns.         */
  77. #define FPU_VFP_EXT_D32  0x00200000     /* Registers D16-D31.         */
  78. #define FPU_VFP_EXT_FP16 0x00100000     /* Half-precision extensions. */
  79. #define FPU_NEON_EXT_FMA 0x00080000     /* Neon fused multiply-add    */
  80. #define FPU_VFP_EXT_FMA  0x00040000     /* VFP fused multiply-add     */
  81. #define FPU_VFP_EXT_ARMV8 0x00020000    /* FP for ARMv8.  */
  82. #define FPU_NEON_EXT_ARMV8 0x00010000   /* Neon for ARMv8.  */
  83. #define FPU_CRYPTO_EXT_ARMV8 0x00008000 /* Crypto for ARMv8.  */
  84. #define CRC_EXT_ARMV8    0x00004000     /* CRC32 for ARMv8.  */
  85.  
  86. /* Architectures are the sum of the base and extensions.  The ARM ARM (rev E)
  87.    defines the following: ARMv3, ARMv3M, ARMv4xM, ARMv4, ARMv4TxM, ARMv4T,
  88.    ARMv5xM, ARMv5, ARMv5TxM, ARMv5T, ARMv5TExP, ARMv5TE.  To these we add
  89.    three more to cover cores prior to ARM6.  Finally, there are cores which
  90.    implement further extensions in the co-processor space.  */
  91. #define ARM_AEXT_V1                       ARM_EXT_V1
  92. #define ARM_AEXT_V2     (ARM_AEXT_V1    | ARM_EXT_V2)
  93. #define ARM_AEXT_V2S    (ARM_AEXT_V2    | ARM_EXT_V2S)
  94. #define ARM_AEXT_V3     (ARM_AEXT_V2S   | ARM_EXT_V3)
  95. #define ARM_AEXT_V3M    (ARM_AEXT_V3    | ARM_EXT_V3M)
  96. #define ARM_AEXT_V4xM   (ARM_AEXT_V3    | ARM_EXT_V4)
  97. #define ARM_AEXT_V4     (ARM_AEXT_V3M   | ARM_EXT_V4)
  98. #define ARM_AEXT_V4TxM  (ARM_AEXT_V4xM  | ARM_EXT_V4T)
  99. #define ARM_AEXT_V4T    (ARM_AEXT_V4    | ARM_EXT_V4T)
  100. #define ARM_AEXT_V5xM   (ARM_AEXT_V4xM  | ARM_EXT_V5)
  101. #define ARM_AEXT_V5     (ARM_AEXT_V4    | ARM_EXT_V5)
  102. #define ARM_AEXT_V5TxM  (ARM_AEXT_V5xM  | ARM_EXT_V4T | ARM_EXT_V5T)
  103. #define ARM_AEXT_V5T    (ARM_AEXT_V5    | ARM_EXT_V4T | ARM_EXT_V5T)
  104. #define ARM_AEXT_V5TExP (ARM_AEXT_V5T   | ARM_EXT_V5ExP)
  105. #define ARM_AEXT_V5TE   (ARM_AEXT_V5TExP | ARM_EXT_V5E)
  106. #define ARM_AEXT_V5TEJ  (ARM_AEXT_V5TE  | ARM_EXT_V5J)
  107. #define ARM_AEXT_V6     (ARM_AEXT_V5TEJ | ARM_EXT_V6)
  108. #define ARM_AEXT_V6K    (ARM_AEXT_V6    | ARM_EXT_V6K)
  109. #define ARM_AEXT_V6Z    (ARM_AEXT_V6K   | ARM_EXT_SEC)
  110. #define ARM_AEXT_V6ZK   (ARM_AEXT_V6K   | ARM_EXT_SEC)
  111. #define ARM_AEXT_V6T2   (ARM_AEXT_V6 \
  112.     | ARM_EXT_V6T2 | ARM_EXT_V6_NOTM | ARM_EXT_THUMB_MSR \
  113.     | ARM_EXT_V6_DSP )
  114. #define ARM_AEXT_V6KT2  (ARM_AEXT_V6T2 | ARM_EXT_V6K)
  115. #define ARM_AEXT_V6ZT2  (ARM_AEXT_V6T2 | ARM_EXT_SEC)
  116. #define ARM_AEXT_V6ZKT2 (ARM_AEXT_V6T2 | ARM_EXT_V6K | ARM_EXT_SEC)
  117. #define ARM_AEXT_V7_ARM (ARM_AEXT_V6KT2 | ARM_EXT_V7 | ARM_EXT_BARRIER)
  118. #define ARM_AEXT_V7A    (ARM_AEXT_V7_ARM | ARM_EXT_V7A)
  119. #define ARM_AEXT_V7VE   (ARM_AEXT_V7A  | ARM_EXT_DIV | ARM_EXT_ADIV \
  120.     | ARM_EXT_VIRT | ARM_EXT_SEC | ARM_EXT_MP)
  121. #define ARM_AEXT_V7R    (ARM_AEXT_V7_ARM | ARM_EXT_V7R | ARM_EXT_DIV)
  122. #define ARM_AEXT_NOTM \
  123.   (ARM_AEXT_V4 | ARM_EXT_V5ExP | ARM_EXT_V5J | ARM_EXT_V6_NOTM \
  124.    | ARM_EXT_V6_DSP )
  125. #define ARM_AEXT_V6M_ONLY \
  126.   ((ARM_EXT_BARRIER | ARM_EXT_V6M | ARM_EXT_THUMB_MSR) & ~(ARM_AEXT_NOTM))
  127. #define ARM_AEXT_V6M \
  128.   ((ARM_AEXT_V6K | ARM_AEXT_V6M_ONLY) & ~(ARM_AEXT_NOTM))
  129. #define ARM_AEXT_V6SM (ARM_AEXT_V6M | ARM_EXT_OS)
  130. #define ARM_AEXT_V7M \
  131.   ((ARM_AEXT_V7_ARM | ARM_EXT_V6M | ARM_EXT_V7M | ARM_EXT_DIV) \
  132.    & ~(ARM_AEXT_NOTM))
  133. #define ARM_AEXT_V7 (ARM_AEXT_V7A & ARM_AEXT_V7R & ARM_AEXT_V7M)
  134. #define ARM_AEXT_V7EM \
  135.   (ARM_AEXT_V7M | ARM_EXT_V5ExP | ARM_EXT_V6_DSP)
  136. #define ARM_AEXT_V8A \
  137.   (ARM_AEXT_V7A | ARM_EXT_MP | ARM_EXT_SEC | ARM_EXT_DIV | ARM_EXT_ADIV \
  138.    | ARM_EXT_VIRT | ARM_EXT_V8)
  139.  
  140. /* Processors with specific extensions in the co-processor space.  */
  141. #define ARM_ARCH_XSCALE ARM_FEATURE (ARM_AEXT_V5TE, ARM_CEXT_XSCALE)
  142. #define ARM_ARCH_IWMMXT \
  143.  ARM_FEATURE (ARM_AEXT_V5TE, ARM_CEXT_XSCALE | ARM_CEXT_IWMMXT)
  144. #define ARM_ARCH_IWMMXT2        \
  145.  ARM_FEATURE (ARM_AEXT_V5TE, ARM_CEXT_XSCALE | ARM_CEXT_IWMMXT | ARM_CEXT_IWMMXT2)
  146.  
  147. #define FPU_VFP_V1xD    (FPU_VFP_EXT_V1xD | FPU_ENDIAN_PURE)
  148. #define FPU_VFP_V1      (FPU_VFP_V1xD | FPU_VFP_EXT_V1)
  149. #define FPU_VFP_V2      (FPU_VFP_V1 | FPU_VFP_EXT_V2)
  150. #define FPU_VFP_V3D16   (FPU_VFP_V2 | FPU_VFP_EXT_V3xD | FPU_VFP_EXT_V3)
  151. #define FPU_VFP_V3      (FPU_VFP_V3D16 | FPU_VFP_EXT_D32)
  152. #define FPU_VFP_V3xD    (FPU_VFP_V1xD | FPU_VFP_EXT_V2 | FPU_VFP_EXT_V3xD)
  153. #define FPU_VFP_V4D16   (FPU_VFP_V3D16 | FPU_VFP_EXT_FP16 | FPU_VFP_EXT_FMA)
  154. #define FPU_VFP_V4      (FPU_VFP_V3 | FPU_VFP_EXT_FP16 | FPU_VFP_EXT_FMA)
  155. #define FPU_VFP_V4_SP_D16 (FPU_VFP_V3xD | FPU_VFP_EXT_FP16 | FPU_VFP_EXT_FMA)
  156. #define FPU_VFP_ARMV8   (FPU_VFP_V4 | FPU_VFP_EXT_ARMV8)
  157. #define FPU_NEON_ARMV8  (FPU_NEON_EXT_V1 | FPU_NEON_EXT_FMA | FPU_NEON_EXT_ARMV8)
  158. #define FPU_CRYPTO_ARMV8 (FPU_CRYPTO_EXT_ARMV8)
  159. #define FPU_VFP_HARD    (FPU_VFP_EXT_V1xD | FPU_VFP_EXT_V1 | FPU_VFP_EXT_V2 \
  160.                          | FPU_VFP_EXT_V3xD | FPU_VFP_EXT_FMA | FPU_NEON_EXT_FMA \
  161.                          | FPU_VFP_EXT_V3 | FPU_NEON_EXT_V1 | FPU_VFP_EXT_D32)
  162. #define FPU_FPA         (FPU_FPA_EXT_V1 | FPU_FPA_EXT_V2)
  163.  
  164. /* Deprecated.  */
  165. #define FPU_ARCH_VFP    ARM_FEATURE (0, FPU_ENDIAN_PURE)
  166.  
  167. #define FPU_ARCH_FPE    ARM_FEATURE (0, FPU_FPA_EXT_V1)
  168. #define FPU_ARCH_FPA    ARM_FEATURE (0, FPU_FPA)
  169.  
  170. #define FPU_ARCH_VFP_V1xD ARM_FEATURE (0, FPU_VFP_V1xD)
  171. #define FPU_ARCH_VFP_V1   ARM_FEATURE (0, FPU_VFP_V1)
  172. #define FPU_ARCH_VFP_V2   ARM_FEATURE (0, FPU_VFP_V2)
  173. #define FPU_ARCH_VFP_V3D16      ARM_FEATURE (0, FPU_VFP_V3D16)
  174. #define FPU_ARCH_VFP_V3D16_FP16 \
  175.   ARM_FEATURE (0, FPU_VFP_V3D16 | FPU_VFP_EXT_FP16)
  176. #define FPU_ARCH_VFP_V3   ARM_FEATURE (0, FPU_VFP_V3)
  177. #define FPU_ARCH_VFP_V3_FP16    ARM_FEATURE (0, FPU_VFP_V3 | FPU_VFP_EXT_FP16)
  178. #define FPU_ARCH_VFP_V3xD       ARM_FEATURE (0, FPU_VFP_V3xD)
  179. #define FPU_ARCH_VFP_V3xD_FP16  ARM_FEATURE (0, FPU_VFP_V3xD | FPU_VFP_EXT_FP16)
  180. #define FPU_ARCH_NEON_V1  ARM_FEATURE (0, FPU_NEON_EXT_V1)
  181. #define FPU_ARCH_VFP_V3_PLUS_NEON_V1 \
  182.   ARM_FEATURE (0, FPU_VFP_V3 | FPU_NEON_EXT_V1)
  183. #define FPU_ARCH_NEON_FP16 \
  184.   ARM_FEATURE (0, FPU_VFP_V3 | FPU_NEON_EXT_V1 | FPU_VFP_EXT_FP16)
  185. #define FPU_ARCH_VFP_HARD ARM_FEATURE (0, FPU_VFP_HARD)
  186. #define FPU_ARCH_VFP_V4 ARM_FEATURE(0, FPU_VFP_V4)
  187. #define FPU_ARCH_VFP_V4D16 ARM_FEATURE(0, FPU_VFP_V4D16)
  188. #define FPU_ARCH_VFP_V4_SP_D16 ARM_FEATURE(0, FPU_VFP_V4_SP_D16)
  189. #define FPU_ARCH_NEON_VFP_V4 \
  190.   ARM_FEATURE(0, FPU_VFP_V4 | FPU_NEON_EXT_V1 | FPU_NEON_EXT_FMA)
  191. #define FPU_ARCH_VFP_ARMV8 ARM_FEATURE(0, FPU_VFP_ARMV8)
  192. #define FPU_ARCH_NEON_VFP_ARMV8 ARM_FEATURE(0, FPU_NEON_ARMV8 | FPU_VFP_ARMV8)
  193. #define FPU_ARCH_CRYPTO_NEON_VFP_ARMV8 \
  194.   ARM_FEATURE(0, FPU_CRYPTO_ARMV8 | FPU_NEON_ARMV8 | FPU_VFP_ARMV8)
  195. #define ARCH_CRC_ARMV8 ARM_FEATURE(0, CRC_EXT_ARMV8)
  196.  
  197. #define FPU_ARCH_ENDIAN_PURE ARM_FEATURE (0, FPU_ENDIAN_PURE)
  198.  
  199. #define FPU_ARCH_MAVERICK ARM_FEATURE (0, FPU_MAVERICK)
  200.  
  201. #define ARM_ARCH_V1     ARM_FEATURE (ARM_AEXT_V1, 0)
  202. #define ARM_ARCH_V2     ARM_FEATURE (ARM_AEXT_V2, 0)
  203. #define ARM_ARCH_V2S    ARM_FEATURE (ARM_AEXT_V2S, 0)
  204. #define ARM_ARCH_V3     ARM_FEATURE (ARM_AEXT_V3, 0)
  205. #define ARM_ARCH_V3M    ARM_FEATURE (ARM_AEXT_V3M, 0)
  206. #define ARM_ARCH_V4xM   ARM_FEATURE (ARM_AEXT_V4xM, 0)
  207. #define ARM_ARCH_V4     ARM_FEATURE (ARM_AEXT_V4, 0)
  208. #define ARM_ARCH_V4TxM  ARM_FEATURE (ARM_AEXT_V4TxM, 0)
  209. #define ARM_ARCH_V4T    ARM_FEATURE (ARM_AEXT_V4T, 0)
  210. #define ARM_ARCH_V5xM   ARM_FEATURE (ARM_AEXT_V5xM, 0)
  211. #define ARM_ARCH_V5     ARM_FEATURE (ARM_AEXT_V5, 0)
  212. #define ARM_ARCH_V5TxM  ARM_FEATURE (ARM_AEXT_V5TxM, 0)
  213. #define ARM_ARCH_V5T    ARM_FEATURE (ARM_AEXT_V5T, 0)
  214. #define ARM_ARCH_V5TExP ARM_FEATURE (ARM_AEXT_V5TExP, 0)
  215. #define ARM_ARCH_V5TE   ARM_FEATURE (ARM_AEXT_V5TE, 0)
  216. #define ARM_ARCH_V5TEJ  ARM_FEATURE (ARM_AEXT_V5TEJ, 0)
  217. #define ARM_ARCH_V6     ARM_FEATURE (ARM_AEXT_V6, 0)
  218. #define ARM_ARCH_V6K    ARM_FEATURE (ARM_AEXT_V6K, 0)
  219. #define ARM_ARCH_V6Z    ARM_FEATURE (ARM_AEXT_V6Z, 0)
  220. #define ARM_ARCH_V6ZK   ARM_FEATURE (ARM_AEXT_V6ZK, 0)
  221. #define ARM_ARCH_V6T2   ARM_FEATURE (ARM_AEXT_V6T2, 0)
  222. #define ARM_ARCH_V6KT2  ARM_FEATURE (ARM_AEXT_V6KT2, 0)
  223. #define ARM_ARCH_V6ZT2  ARM_FEATURE (ARM_AEXT_V6ZT2, 0)
  224. #define ARM_ARCH_V6ZKT2 ARM_FEATURE (ARM_AEXT_V6ZKT2, 0)
  225. #define ARM_ARCH_V6M    ARM_FEATURE (ARM_AEXT_V6M, 0)
  226. #define ARM_ARCH_V6SM   ARM_FEATURE (ARM_AEXT_V6SM, 0)
  227. #define ARM_ARCH_V7     ARM_FEATURE (ARM_AEXT_V7, 0)
  228. #define ARM_ARCH_V7A    ARM_FEATURE (ARM_AEXT_V7A, 0)
  229. #define ARM_ARCH_V7VE   ARM_FEATURE (ARM_AEXT_V7VE, 0)
  230. #define ARM_ARCH_V7R    ARM_FEATURE (ARM_AEXT_V7R, 0)
  231. #define ARM_ARCH_V7M    ARM_FEATURE (ARM_AEXT_V7M, 0)
  232. #define ARM_ARCH_V7EM   ARM_FEATURE (ARM_AEXT_V7EM, 0)
  233. #define ARM_ARCH_V8A    ARM_FEATURE (ARM_AEXT_V8A, 0)
  234.  
  235. /* Some useful combinations:  */
  236. #define ARM_ARCH_NONE   ARM_FEATURE (0, 0)
  237. #define FPU_NONE        ARM_FEATURE (0, 0)
  238. #define ARM_ANY         ARM_FEATURE (-1, 0)     /* Any basic core.  */
  239. #define FPU_ANY_HARD    ARM_FEATURE (0, FPU_FPA | FPU_VFP_HARD | FPU_MAVERICK)
  240. #define ARM_ARCH_THUMB2 ARM_FEATURE (ARM_EXT_V6T2 | ARM_EXT_V7 | ARM_EXT_V7A | ARM_EXT_V7R | ARM_EXT_V7M | ARM_EXT_DIV, 0)
  241. /* v7-a+sec.  */
  242. #define ARM_ARCH_V7A_SEC ARM_FEATURE (ARM_AEXT_V7A | ARM_EXT_SEC, 0)
  243. /* v7-a+mp+sec.  */
  244. #define ARM_ARCH_V7A_MP_SEC \
  245.                         ARM_FEATURE (ARM_AEXT_V7A | ARM_EXT_MP | ARM_EXT_SEC, \
  246.                                      0)
  247. /* v7-r+idiv.  */
  248. #define ARM_ARCH_V7R_IDIV       ARM_FEATURE (ARM_AEXT_V7R | ARM_EXT_ADIV, 0)
  249. /* Features that are present in v6M and v6S-M but not other v6 cores.  */
  250. #define ARM_ARCH_V6M_ONLY ARM_FEATURE (ARM_AEXT_V6M_ONLY, 0)
  251. /* v8-a+fp.  */
  252. #define ARM_ARCH_V8A_FP ARM_FEATURE (ARM_AEXT_V8A, FPU_ARCH_VFP_ARMV8)
  253. /* v8-a+simd (implies fp).  */
  254. #define ARM_ARCH_V8A_SIMD       ARM_FEATURE (ARM_AEXT_V8A, \
  255.                                              FPU_ARCH_NEON_VFP_ARMV8)
  256. /* v8-a+crypto (implies simd+fp).  */
  257. #define ARM_ARCH_V8A_CRYPTOV1   ARM_FEATURE (ARM_AEXT_V8A, \
  258.                                              FPU_ARCH_CRYPTO_NEON_VFP_ARMV8)
  259.  
  260. /* There are too many feature bits to fit in a single word, so use a
  261.    structure.  For simplicity we put all core features in one word and
  262.    everything else in the other.  */
  263. typedef struct
  264. {
  265.   unsigned long core;
  266.   unsigned long coproc;
  267. } arm_feature_set;
  268.  
  269. #define ARM_CPU_HAS_FEATURE(CPU,FEAT) \
  270.   (((CPU).core & (FEAT).core) != 0 || ((CPU).coproc & (FEAT).coproc) != 0)
  271.  
  272. #define ARM_CPU_IS_ANY(CPU) \
  273.   ((CPU).core == ((arm_feature_set)ARM_ANY).core)
  274.  
  275. #define ARM_MERGE_FEATURE_SETS(TARG,F1,F2)      \
  276.   do {                                          \
  277.     (TARG).core = (F1).core | (F2).core;        \
  278.     (TARG).coproc = (F1).coproc | (F2).coproc;  \
  279.   } while (0)
  280.  
  281. #define ARM_CLEAR_FEATURE(TARG,F1,F2)           \
  282.   do {                                          \
  283.     (TARG).core = (F1).core &~ (F2).core;       \
  284.     (TARG).coproc = (F1).coproc &~ (F2).coproc; \
  285.   } while (0)
  286.  
  287. #define ARM_FEATURE(core, coproc) {(core), (coproc)}
  288.