Separate the new FP16 instructions backported from Armv8.4-a to Armv8.2-a into a...

[thirdparty/binutils-gdb.git] / include / opcode / arm.h

/* ARM assembler/disassembler support.
   Copyright (C) 2004-2017 Free Software Foundation, Inc.

   This file is part of GDB and GAS.

   GDB and GAS are free software; you can redistribute it and/or
   modify it under the terms of the GNU General Public License as
   published by the Free Software Foundation; either version 3, or (at
   your option) any later version.

   GDB and GAS are distributed in the hope that it will be useful, but
   WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with GDB or GAS; see the file COPYING3.  If not, write to the
   Free Software Foundation, 51 Franklin Street - Fifth Floor, Boston,
   MA 02110-1301, USA.  */

/* The following bitmasks control CPU extensions:  */
#define ARM_EXT_V1       0x00000001     /* All processors (core set).  */
#define ARM_EXT_V2       0x00000002     /* Multiply instructions.  */
#define ARM_EXT_V2S      0x00000004     /* SWP instructions.       */
#define ARM_EXT_V3       0x00000008     /* MSR MRS.                */
#define ARM_EXT_V3M      0x00000010     /* Allow long multiplies.  */
#define ARM_EXT_V4       0x00000020     /* Allow half word loads.  */
#define ARM_EXT_V4T      0x00000040     /* Thumb.                  */
#define ARM_EXT_V5       0x00000080     /* Allow CLZ, etc.         */
#define ARM_EXT_V5T      0x00000100     /* Improved interworking.  */
#define ARM_EXT_V5ExP    0x00000200     /* DSP core set.           */
#define ARM_EXT_V5E      0x00000400     /* DSP Double transfers.   */
#define ARM_EXT_V5J      0x00000800     /* Jazelle extension.      */
#define ARM_EXT_V6       0x00001000     /* ARM V6.                 */
#define ARM_EXT_V6K      0x00002000     /* ARM V6K.                */
#define ARM_EXT_V8       0x00004000     /* ARMv8 w/o atomics.      */
#define ARM_EXT_V6T2     0x00008000     /* Thumb-2.                */
#define ARM_EXT_DIV      0x00010000     /* Integer division.       */
/* The 'M' in Arm V7M stands for Microcontroller.
   On earlier architecture variants it stands for Multiply.  */
#define ARM_EXT_V5E_NOTM 0x00020000     /* Arm V5E but not Arm V7M. */
#define ARM_EXT_V6_NOTM  0x00040000     /* Arm V6 but not Arm V7M. */
#define ARM_EXT_V7       0x00080000     /* Arm V7.                 */
#define ARM_EXT_V7A      0x00100000     /* Arm V7A.                */
#define ARM_EXT_V7R      0x00200000     /* Arm V7R.                */
#define ARM_EXT_V7M      0x00400000     /* Arm V7M.                */
#define ARM_EXT_V6M      0x00800000     /* ARM V6M.                 */
#define ARM_EXT_BARRIER  0x01000000     /* DSB/DMB/ISB.             */
#define ARM_EXT_THUMB_MSR 0x02000000    /* Thumb MSR/MRS.           */
#define ARM_EXT_V6_DSP 0x04000000       /* ARM v6 (DSP-related),
                                           not in v7-M.  */
#define ARM_EXT_MP       0x08000000     /* Multiprocessing Extensions.  */
#define ARM_EXT_SEC      0x10000000     /* Security extensions.  */
#define ARM_EXT_OS       0x20000000     /* OS Extensions.  */
#define ARM_EXT_ADIV     0x40000000     /* Integer divide extensions in ARM
                                           state.  */
#define ARM_EXT_VIRT     0x80000000     /* Virtualization extensions.  */

#define ARM_EXT2_PAN     0x00000001     /* PAN extension.  */
#define ARM_EXT2_V8_2A   0x00000002     /* ARM V8.2A.  */
#define ARM_EXT2_V8M     0x00000004     /* ARM V8M.  */
#define ARM_EXT2_ATOMICS 0x00000008     /* ARMv8 atomics.  */
#define ARM_EXT2_V6T2_V8M  0x00000010   /* V8M Baseline from V6T2.  */
#define ARM_EXT2_FP16_INST 0x00000020   /* ARM V8.2A FP16 instructions.  */
#define ARM_EXT2_V8M_MAIN  0x00000040   /* ARMv8-M Mainline.  */
#define ARM_EXT2_RAS     0x00000080     /* RAS extension.  */
#define ARM_EXT2_V8_3A   0x00000100     /* ARM V8.3A.  */
#define ARM_EXT2_V8A     0x00000200     /* ARMv8-A.  */
#define ARM_EXT2_V8_4A   0x00000400     /* ARM V8.4A.  */
#define ARM_EXT2_FP16_FML 0x00000800    /* ARM V8.2A FP16-FML instructions.  */

/* Co-processor space extensions.  */
#define ARM_CEXT_XSCALE   0x00000001    /* Allow MIA etc.          */
#define ARM_CEXT_MAVERICK 0x00000002    /* Use Cirrus/DSP coprocessor.  */
#define ARM_CEXT_IWMMXT   0x00000004    /* Intel Wireless MMX technology coprocessor.  */
#define ARM_CEXT_IWMMXT2  0x00000008    /* Intel Wireless MMX technology coprocessor version 2.  */

#define FPU_ENDIAN_PURE  0x80000000     /* Pure-endian doubles.       */
#define FPU_ENDIAN_BIG   0              /* Double words-big-endian.   */
#define FPU_FPA_EXT_V1   0x40000000     /* Base FPA instruction set.  */
#define FPU_FPA_EXT_V2   0x20000000     /* LFM/SFM.                   */
#define FPU_MAVERICK     0x10000000     /* Cirrus Maverick.           */
#define FPU_VFP_EXT_V1xD 0x08000000     /* Base VFP instruction set.  */
#define FPU_VFP_EXT_V1   0x04000000     /* Double-precision insns.    */
#define FPU_VFP_EXT_V2   0x02000000     /* ARM10E VFPr1.              */
#define FPU_VFP_EXT_V3xD 0x01000000     /* VFPv3 single-precision.    */
#define FPU_VFP_EXT_V3   0x00800000     /* VFPv3 double-precision.    */
#define FPU_NEON_EXT_V1  0x00400000     /* Neon (SIMD) insns.         */
#define FPU_VFP_EXT_D32  0x00200000     /* Registers D16-D31.         */
#define FPU_VFP_EXT_FP16 0x00100000     /* Half-precision extensions. */
#define FPU_NEON_EXT_FMA 0x00080000     /* Neon fused multiply-add    */
#define FPU_VFP_EXT_FMA  0x00040000     /* VFP fused multiply-add     */
#define FPU_VFP_EXT_ARMV8 0x00020000    /* Double-precision FP for ARMv8.  */
#define FPU_NEON_EXT_ARMV8 0x00010000   /* Neon for ARMv8.  */
#define FPU_CRYPTO_EXT_ARMV8 0x00008000 /* Crypto for ARMv8.  */
#define CRC_EXT_ARMV8    0x00004000     /* CRC32 for ARMv8.  */
#define FPU_VFP_EXT_ARMV8xD 0x00002000  /* Single-precision FP for ARMv8.  */
#define FPU_NEON_EXT_RDMA 0x00001000    /* v8.1 Adv.SIMD extensions.  */
#define FPU_NEON_EXT_DOTPROD 0x00000800 /* Dot Product extension.  */

/* Architectures are the sum of the base and extensions.  The ARM ARM (rev E)
   defines the following: ARMv3, ARMv3M, ARMv4xM, ARMv4, ARMv4TxM, ARMv4T,
   ARMv5xM, ARMv5, ARMv5TxM, ARMv5T, ARMv5TExP, ARMv5TE.  To these we add
   three more to cover cores prior to ARM6.  Finally, there are cores which
   implement further extensions in the co-processor space.  */
#define ARM_AEXT_V1                       ARM_EXT_V1
#define ARM_AEXT_V2     (ARM_AEXT_V1    | ARM_EXT_V2)
#define ARM_AEXT_V2S    (ARM_AEXT_V2    | ARM_EXT_V2S)
#define ARM_AEXT_V3     (ARM_AEXT_V2S   | ARM_EXT_V3)
#define ARM_AEXT_V3M    (ARM_AEXT_V3    | ARM_EXT_V3M)
#define ARM_AEXT_V4xM   (ARM_AEXT_V3    | ARM_EXT_V4)
#define ARM_AEXT_V4     (ARM_AEXT_V3M   | ARM_EXT_V4)
#define ARM_AEXT_V4TxM  (ARM_AEXT_V4xM  | ARM_EXT_V4T | ARM_EXT_OS)
#define ARM_AEXT_V4T    (ARM_AEXT_V4    | ARM_EXT_V4T | ARM_EXT_OS)
#define ARM_AEXT_V5xM   (ARM_AEXT_V4xM  | ARM_EXT_V5)
#define ARM_AEXT_V5     (ARM_AEXT_V4    | ARM_EXT_V5)
#define ARM_AEXT_V5TxM  (ARM_AEXT_V5xM  | ARM_EXT_V4T | ARM_EXT_V5T \
                         | ARM_EXT_OS)
#define ARM_AEXT_V5T    (ARM_AEXT_V5    | ARM_EXT_V4T | ARM_EXT_V5T \
                         | ARM_EXT_OS)
#define ARM_AEXT_V5TExP (ARM_AEXT_V5T   | ARM_EXT_V5ExP)
#define ARM_AEXT_V5TE   (ARM_AEXT_V5TExP | ARM_EXT_V5E)
#define ARM_AEXT_V5TEJ  (ARM_AEXT_V5TE  | ARM_EXT_V5J)
#define ARM_AEXT_V6     (ARM_AEXT_V5TEJ | ARM_EXT_V6)
#define ARM_AEXT_V6K    (ARM_AEXT_V6    | ARM_EXT_V6K)
#define ARM_AEXT_V6Z    (ARM_AEXT_V6K   | ARM_EXT_SEC)
#define ARM_AEXT_V6KZ   (ARM_AEXT_V6K   | ARM_EXT_SEC)
#define ARM_AEXT_V6T2   (ARM_AEXT_V6 \
    | ARM_EXT_V6T2 | ARM_EXT_V6_NOTM | ARM_EXT_THUMB_MSR \
    | ARM_EXT_V6_DSP )
#define ARM_AEXT_V6KT2  (ARM_AEXT_V6T2 | ARM_EXT_V6K)
#define ARM_AEXT_V6ZT2  (ARM_AEXT_V6T2 | ARM_EXT_SEC)
#define ARM_AEXT_V6KZT2 (ARM_AEXT_V6T2 | ARM_EXT_V6K | ARM_EXT_SEC)
#define ARM_AEXT_V7_ARM (ARM_AEXT_V6KT2 | ARM_EXT_V7 | ARM_EXT_BARRIER)
#define ARM_AEXT_V7A    (ARM_AEXT_V7_ARM | ARM_EXT_V7A)
#define ARM_AEXT_V7VE   (ARM_AEXT_V7A  | ARM_EXT_DIV | ARM_EXT_ADIV \
    | ARM_EXT_VIRT | ARM_EXT_SEC | ARM_EXT_MP)
#define ARM_AEXT_V7R    (ARM_AEXT_V7_ARM | ARM_EXT_V7R | ARM_EXT_DIV)
#define ARM_AEXT_NOTM \
  (ARM_AEXT_V4 | ARM_EXT_V5ExP | ARM_EXT_V5J | ARM_EXT_V6_NOTM \
   | ARM_EXT_V6_DSP )
#define ARM_AEXT_V6M_ONLY \
  ((ARM_EXT_BARRIER | ARM_EXT_V6M | ARM_EXT_THUMB_MSR) & ~(ARM_AEXT_NOTM))
#define ARM_AEXT_V6M \
  ((ARM_AEXT_V6K | ARM_AEXT_V6M_ONLY) & ~(ARM_AEXT_NOTM | ARM_EXT_OS))
#define ARM_AEXT_V6SM (ARM_AEXT_V6M | ARM_EXT_OS)
#define ARM_AEXT_V7M \
  ((ARM_AEXT_V7_ARM | ARM_EXT_V6M | ARM_EXT_V7M | ARM_EXT_DIV) \
   & ~(ARM_AEXT_NOTM))
#define ARM_AEXT_V7 (ARM_AEXT_V7A & ARM_AEXT_V7R & ARM_AEXT_V7M)
#define ARM_AEXT_V7EM \
  (ARM_AEXT_V7M | ARM_EXT_V5ExP | ARM_EXT_V6_DSP)
#define ARM_AEXT_V8A \
  (ARM_AEXT_V7A | ARM_EXT_MP | ARM_EXT_SEC | ARM_EXT_DIV | ARM_EXT_ADIV \
   | ARM_EXT_VIRT | ARM_EXT_V8)
#define ARM_AEXT2_V8AR  (ARM_EXT2_V6T2_V8M | ARM_EXT2_ATOMICS)
#define ARM_AEXT2_V8A   (ARM_AEXT2_V8AR | ARM_EXT2_V8A)
#define ARM_AEXT2_V8_1A (ARM_AEXT2_V8A | ARM_EXT2_PAN)
#define ARM_AEXT2_V8_2A (ARM_AEXT2_V8_1A | ARM_EXT2_V8_2A | ARM_EXT2_RAS)
#define ARM_AEXT2_V8_3A (ARM_AEXT2_V8_2A | ARM_EXT2_V8_3A)
#define ARM_AEXT2_V8_4A (ARM_AEXT2_V8_3A | ARM_EXT2_FP16_FML | ARM_EXT2_V8_4A)
#define ARM_AEXT_V8M_BASE (ARM_AEXT_V6SM | ARM_EXT_DIV)
#define ARM_AEXT_V8M_MAIN ARM_AEXT_V7M
#define ARM_AEXT_V8M_MAIN_DSP ARM_AEXT_V7EM
#define ARM_AEXT2_V8M   (ARM_EXT2_V8M | ARM_EXT2_ATOMICS | ARM_EXT2_V6T2_V8M)
#define ARM_AEXT2_V8M_MAIN (ARM_AEXT2_V8M | ARM_EXT2_V8M_MAIN)
#define ARM_AEXT2_V8M_MAIN_DSP ARM_AEXT2_V8M_MAIN
#define ARM_AEXT_V8R    ARM_AEXT_V8A
#define ARM_AEXT2_V8R   ARM_AEXT2_V8AR

/* Processors with specific extensions in the co-processor space.  */
#define ARM_ARCH_XSCALE ARM_FEATURE_LOW (ARM_AEXT_V5TE, ARM_CEXT_XSCALE)
#define ARM_ARCH_IWMMXT \
 ARM_FEATURE_LOW (ARM_AEXT_V5TE, ARM_CEXT_XSCALE | ARM_CEXT_IWMMXT)
#define ARM_ARCH_IWMMXT2        \
 ARM_FEATURE_LOW (ARM_AEXT_V5TE, ARM_CEXT_XSCALE | ARM_CEXT_IWMMXT \
                  | ARM_CEXT_IWMMXT2)

#define FPU_VFP_V1xD    (FPU_VFP_EXT_V1xD | FPU_ENDIAN_PURE)
#define FPU_VFP_V1      (FPU_VFP_V1xD | FPU_VFP_EXT_V1)
#define FPU_VFP_V2      (FPU_VFP_V1 | FPU_VFP_EXT_V2)
#define FPU_VFP_V3D16   (FPU_VFP_V2 | FPU_VFP_EXT_V3xD | FPU_VFP_EXT_V3)
#define FPU_VFP_V3      (FPU_VFP_V3D16 | FPU_VFP_EXT_D32)
#define FPU_VFP_V3xD    (FPU_VFP_V1xD | FPU_VFP_EXT_V2 | FPU_VFP_EXT_V3xD)
#define FPU_VFP_V4D16   (FPU_VFP_V3D16 | FPU_VFP_EXT_FP16 | FPU_VFP_EXT_FMA)
#define FPU_VFP_V4      (FPU_VFP_V3 | FPU_VFP_EXT_FP16 | FPU_VFP_EXT_FMA)
#define FPU_VFP_V4_SP_D16 (FPU_VFP_V3xD | FPU_VFP_EXT_FP16 | FPU_VFP_EXT_FMA)
#define FPU_VFP_V5D16   (FPU_VFP_V4D16 | FPU_VFP_EXT_ARMV8xD | FPU_VFP_EXT_ARMV8)
#define FPU_VFP_V5_SP_D16 (FPU_VFP_V4_SP_D16 | FPU_VFP_EXT_ARMV8xD)
#define FPU_VFP_ARMV8   (FPU_VFP_V4 | FPU_VFP_EXT_ARMV8 | FPU_VFP_EXT_ARMV8xD)
#define FPU_NEON_ARMV8  (FPU_NEON_EXT_V1 | FPU_NEON_EXT_FMA | FPU_NEON_EXT_ARMV8)
#define FPU_CRYPTO_ARMV8 (FPU_CRYPTO_EXT_ARMV8)
#define FPU_VFP_HARD    (FPU_VFP_EXT_V1xD | FPU_VFP_EXT_V1 | FPU_VFP_EXT_V2 \
                         | FPU_VFP_EXT_V3xD | FPU_VFP_EXT_FMA | FPU_NEON_EXT_FMA \
                         | FPU_VFP_EXT_V3 | FPU_NEON_EXT_V1 | FPU_VFP_EXT_D32)
#define FPU_FPA         (FPU_FPA_EXT_V1 | FPU_FPA_EXT_V2)

/* Deprecated.  */
#define FPU_ARCH_VFP    ARM_FEATURE_COPROC (FPU_ENDIAN_PURE)

#define FPU_ARCH_FPE    ARM_FEATURE_COPROC (FPU_FPA_EXT_V1)
#define FPU_ARCH_FPA    ARM_FEATURE_COPROC (FPU_FPA)

#define FPU_ARCH_VFP_V1xD ARM_FEATURE_COPROC (FPU_VFP_V1xD)
#define FPU_ARCH_VFP_V1   ARM_FEATURE_COPROC (FPU_VFP_V1)
#define FPU_ARCH_VFP_V2   ARM_FEATURE_COPROC (FPU_VFP_V2)
#define FPU_ARCH_VFP_V3D16      ARM_FEATURE_COPROC (FPU_VFP_V3D16)
#define FPU_ARCH_VFP_V3D16_FP16 \
  ARM_FEATURE_COPROC (FPU_VFP_V3D16 | FPU_VFP_EXT_FP16)
#define FPU_ARCH_VFP_V3   ARM_FEATURE_COPROC (FPU_VFP_V3)
#define FPU_ARCH_VFP_V3_FP16    ARM_FEATURE_COPROC (FPU_VFP_V3 | FPU_VFP_EXT_FP16)
#define FPU_ARCH_VFP_V3xD       ARM_FEATURE_COPROC (FPU_VFP_V3xD)
#define FPU_ARCH_VFP_V3xD_FP16  ARM_FEATURE_COPROC (FPU_VFP_V3xD \
                                                 | FPU_VFP_EXT_FP16)
#define FPU_ARCH_NEON_V1  ARM_FEATURE_COPROC (FPU_NEON_EXT_V1)
#define FPU_ARCH_VFP_V3_PLUS_NEON_V1 \
  ARM_FEATURE_COPROC (FPU_VFP_V3 | FPU_NEON_EXT_V1)
#define FPU_ARCH_NEON_FP16 \
  ARM_FEATURE_COPROC (FPU_VFP_V3 | FPU_NEON_EXT_V1 | FPU_VFP_EXT_FP16)
#define FPU_ARCH_VFP_HARD ARM_FEATURE_COPROC (FPU_VFP_HARD)
#define FPU_ARCH_VFP_V4 ARM_FEATURE_COPROC (FPU_VFP_V4)
#define FPU_ARCH_VFP_V4D16 ARM_FEATURE_COPROC (FPU_VFP_V4D16)
#define FPU_ARCH_VFP_V4_SP_D16 ARM_FEATURE_COPROC (FPU_VFP_V4_SP_D16)
#define FPU_ARCH_VFP_V5D16 ARM_FEATURE_COPROC (FPU_VFP_V5D16)
#define FPU_ARCH_VFP_V5_SP_D16 ARM_FEATURE_COPROC (FPU_VFP_V5_SP_D16)
#define FPU_ARCH_NEON_VFP_V4 \
  ARM_FEATURE_COPROC (FPU_VFP_V4 | FPU_NEON_EXT_V1 | FPU_NEON_EXT_FMA)
#define FPU_ARCH_VFP_ARMV8 ARM_FEATURE_COPROC (FPU_VFP_ARMV8)
#define FPU_ARCH_NEON_VFP_ARMV8 ARM_FEATURE_COPROC (FPU_NEON_ARMV8 \
                                                 | FPU_VFP_ARMV8)
#define FPU_ARCH_CRYPTO_NEON_VFP_ARMV8 \
  ARM_FEATURE_COPROC (FPU_CRYPTO_ARMV8 | FPU_NEON_ARMV8 | FPU_VFP_ARMV8)
#define FPU_ARCH_CRYPTO_NEON_VFP_ARMV8_DOTPROD \
  ARM_FEATURE_COPROC (FPU_CRYPTO_ARMV8 | FPU_NEON_ARMV8 | FPU_VFP_ARMV8 \
                      | FPU_NEON_EXT_DOTPROD)
#define ARCH_CRC_ARMV8 ARM_FEATURE_COPROC (CRC_EXT_ARMV8)
#define FPU_ARCH_NEON_VFP_ARMV8_1 \
  ARM_FEATURE_COPROC (FPU_NEON_ARMV8                             \
                      | FPU_VFP_ARMV8                            \
                      | FPU_NEON_EXT_RDMA)
#define FPU_ARCH_CRYPTO_NEON_VFP_ARMV8_1 \
  ARM_FEATURE_COPROC (FPU_CRYPTO_ARMV8 | FPU_NEON_ARMV8 | FPU_VFP_ARMV8 \
                      | FPU_NEON_EXT_RDMA)
#define FPU_ARCH_DOTPROD_NEON_VFP_ARMV8 \
  ARM_FEATURE_COPROC (FPU_NEON_EXT_DOTPROD | FPU_NEON_ARMV8 | FPU_VFP_ARMV8)


#define FPU_ARCH_ENDIAN_PURE ARM_FEATURE_COPROC (FPU_ENDIAN_PURE)

#define FPU_ARCH_MAVERICK ARM_FEATURE_COPROC (FPU_MAVERICK)

#define ARM_ARCH_V1     ARM_FEATURE_CORE_LOW (ARM_AEXT_V1)
#define ARM_ARCH_V2     ARM_FEATURE_CORE_LOW (ARM_AEXT_V2)
#define ARM_ARCH_V2S    ARM_FEATURE_CORE_LOW (ARM_AEXT_V2S)
#define ARM_ARCH_V3     ARM_FEATURE_CORE_LOW (ARM_AEXT_V3)
#define ARM_ARCH_V3M    ARM_FEATURE_CORE_LOW (ARM_AEXT_V3M)
#define ARM_ARCH_V4xM   ARM_FEATURE_CORE_LOW (ARM_AEXT_V4xM)
#define ARM_ARCH_V4     ARM_FEATURE_CORE_LOW (ARM_AEXT_V4)
#define ARM_ARCH_V4TxM  ARM_FEATURE_CORE_LOW (ARM_AEXT_V4TxM)
#define ARM_ARCH_V4T    ARM_FEATURE_CORE_LOW (ARM_AEXT_V4T)
#define ARM_ARCH_V5xM   ARM_FEATURE_CORE_LOW (ARM_AEXT_V5xM)
#define ARM_ARCH_V5     ARM_FEATURE_CORE_LOW (ARM_AEXT_V5)
#define ARM_ARCH_V5TxM  ARM_FEATURE_CORE_LOW (ARM_AEXT_V5TxM)
#define ARM_ARCH_V5T    ARM_FEATURE_CORE_LOW (ARM_AEXT_V5T)
#define ARM_ARCH_V5TExP ARM_FEATURE_CORE_LOW (ARM_AEXT_V5TExP)
#define ARM_ARCH_V5TE   ARM_FEATURE_CORE_LOW (ARM_AEXT_V5TE)
#define ARM_ARCH_V5TEJ  ARM_FEATURE_CORE_LOW (ARM_AEXT_V5TEJ)
#define ARM_ARCH_V6     ARM_FEATURE_CORE_LOW (ARM_AEXT_V6)
#define ARM_ARCH_V6K    ARM_FEATURE_CORE_LOW (ARM_AEXT_V6K)
#define ARM_ARCH_V6Z    ARM_FEATURE_CORE_LOW (ARM_AEXT_V6Z)
#define ARM_ARCH_V6KZ   ARM_FEATURE_CORE_LOW (ARM_AEXT_V6KZ)
#define ARM_ARCH_V6T2   ARM_FEATURE_CORE (ARM_AEXT_V6T2, ARM_EXT2_V6T2_V8M)
#define ARM_ARCH_V6KT2  ARM_FEATURE_CORE (ARM_AEXT_V6KT2, ARM_EXT2_V6T2_V8M)
#define ARM_ARCH_V6ZT2  ARM_FEATURE_CORE (ARM_AEXT_V6ZT2, ARM_EXT2_V6T2_V8M)
#define ARM_ARCH_V6KZT2 ARM_FEATURE_CORE (ARM_AEXT_V6KZT2, ARM_EXT2_V6T2_V8M)
#define ARM_ARCH_V6M    ARM_FEATURE_CORE_LOW (ARM_AEXT_V6M)
#define ARM_ARCH_V6SM   ARM_FEATURE_CORE_LOW (ARM_AEXT_V6SM)
#define ARM_ARCH_V7     ARM_FEATURE_CORE (ARM_AEXT_V7, ARM_EXT2_V6T2_V8M)
#define ARM_ARCH_V7A    ARM_FEATURE_CORE (ARM_AEXT_V7A, ARM_EXT2_V6T2_V8M)
#define ARM_ARCH_V7VE   ARM_FEATURE_CORE (ARM_AEXT_V7VE, ARM_EXT2_V6T2_V8M)
#define ARM_ARCH_V7R    ARM_FEATURE_CORE (ARM_AEXT_V7R, ARM_EXT2_V6T2_V8M)
#define ARM_ARCH_V7M    ARM_FEATURE_CORE (ARM_AEXT_V7M, ARM_EXT2_V6T2_V8M)
#define ARM_ARCH_V7EM   ARM_FEATURE_CORE (ARM_AEXT_V7EM, ARM_EXT2_V6T2_V8M)
#define ARM_ARCH_V8A    ARM_FEATURE_CORE (ARM_AEXT_V8A, ARM_AEXT2_V8A)
#define ARM_ARCH_V8A_CRC ARM_FEATURE (ARM_AEXT_V8A, ARM_AEXT2_V8A, \
                                      CRC_EXT_ARMV8)
#define ARM_ARCH_V8_1A  ARM_FEATURE (ARM_AEXT_V8A, ARM_AEXT2_V8_1A,     \
                                     CRC_EXT_ARMV8 | FPU_NEON_EXT_RDMA)
#define ARM_ARCH_V8_2A  ARM_FEATURE (ARM_AEXT_V8A, ARM_AEXT2_V8_2A,     \
                                     CRC_EXT_ARMV8 | FPU_NEON_EXT_RDMA)
#define ARM_ARCH_V8_3A  ARM_FEATURE (ARM_AEXT_V8A, ARM_AEXT2_V8_3A,     \
                                     CRC_EXT_ARMV8 | FPU_NEON_EXT_RDMA)
#define ARM_ARCH_V8_4A  ARM_FEATURE (ARM_AEXT_V8A, ARM_AEXT2_V8_4A,     \
                                     CRC_EXT_ARMV8 | FPU_NEON_EXT_RDMA \
                                     | FPU_NEON_EXT_DOTPROD)
#define ARM_ARCH_V8M_BASE ARM_FEATURE_CORE (ARM_AEXT_V8M_BASE, ARM_AEXT2_V8M)
#define ARM_ARCH_V8M_MAIN ARM_FEATURE_CORE (ARM_AEXT_V8M_MAIN, \
                                            ARM_AEXT2_V8M_MAIN)
#define ARM_ARCH_V8M_MAIN_DSP ARM_FEATURE_CORE (ARM_AEXT_V8M_MAIN_DSP, \
                                                ARM_AEXT2_V8M_MAIN_DSP)
#define ARM_ARCH_V8R    ARM_FEATURE_CORE (ARM_AEXT_V8R, ARM_AEXT2_V8R)

/* Some useful combinations:  */
#define ARM_ARCH_NONE   ARM_FEATURE_LOW (0, 0)
#define FPU_NONE        ARM_FEATURE_LOW (0, 0)
#define ARM_ANY         ARM_FEATURE (-1, -1, 0) /* Any basic core.  */
#define FPU_ANY         ARM_FEATURE_COPROC (-1) /* Any FPU.  */
#define ARM_FEATURE_ALL ARM_FEATURE (-1, -1, -1)/* All CPU and FPU features.  */
#define FPU_ANY_HARD    ARM_FEATURE_COPROC (FPU_FPA | FPU_VFP_HARD | FPU_MAVERICK)
/* Extensions containing some Thumb-2 instructions.  If any is present, Thumb
   ISA is Thumb-2.  */
#define ARM_ARCH_THUMB2 ARM_FEATURE_CORE (ARM_EXT_V6T2 | ARM_EXT_V7     \
                                          | ARM_EXT_DIV | ARM_EXT_V8,   \
                                          ARM_EXT2_ATOMICS | ARM_EXT2_V6T2_V8M)
/* v7-a+sec.  */
#define ARM_ARCH_V7A_SEC \
  ARM_FEATURE_CORE (ARM_AEXT_V7A | ARM_EXT_SEC, ARM_EXT2_V6T2_V8M)
/* v7-a+mp+sec.  */
#define ARM_ARCH_V7A_MP_SEC \
  ARM_FEATURE_CORE (ARM_AEXT_V7A | ARM_EXT_MP | ARM_EXT_SEC, ARM_EXT2_V6T2_V8M)
/* v7-r+idiv.  */
#define ARM_ARCH_V7R_IDIV \
  ARM_FEATURE_CORE (ARM_AEXT_V7R | ARM_EXT_ADIV, ARM_EXT2_V6T2_V8M)
/* Features that are present in v6M and v6S-M but not other v6 cores.  */
#define ARM_ARCH_V6M_ONLY ARM_FEATURE_CORE_LOW (ARM_AEXT_V6M_ONLY)
/* v8-a+fp.  */
#define ARM_ARCH_V8A_FP \
  ARM_FEATURE (ARM_AEXT_V8A, ARM_AEXT2_V8A, FPU_ARCH_VFP_ARMV8)
/* v8-a+simd (implies fp).  */
#define ARM_ARCH_V8A_SIMD \
  ARM_FEATURE (ARM_AEXT_V8A, ARM_AEXT2_V8A, FPU_ARCH_NEON_VFP_ARMV8)
/* v8-a+crypto (implies simd+fp).  */
#define ARM_ARCH_V8A_CRYPTOV1 \
  ARM_FEATURE (ARM_AEXT_V8A, ARM_AEXT2_V8A, FPU_ARCH_CRYPTO_NEON_VFP_ARMV8)

/* v8.1-a+fp.  */
#define ARM_ARCH_V8_1A_FP \
  ARM_FEATURE (ARM_AEXT_V8A, ARM_AEXT2_V8_1A, FPU_ARCH_VFP_ARMV8)
/* v8.1-a+simd (implies fp).  */
#define ARM_ARCH_V8_1A_SIMD \
  ARM_FEATURE (ARM_AEXT_V8A, ARM_AEXT2_V8_1A, FPU_ARCH_NEON_VFP_ARMV8_1)
/* v8.1-a+crypto (implies simd+fp).  */
#define ARM_ARCH_V8_1A_CRYPTOV1 \
  ARM_FEATURE (ARM_AEXT_V8A, ARM_AEXT2_V8_1A, FPU_ARCH_CRYPTO_NEON_VFP_ARMV8_1)


/* There are too many feature bits to fit in a single word, so use a
   structure.  For simplicity we put all core features in array CORE
   and everything else in the other.  All the bits in element core[0]
   have been occupied, so new feature should use bit in element core[1]
   and use macro ARM_FEATURE to initialize the feature set variable.  */
typedef struct
{
  unsigned long core[2];
  unsigned long coproc;
} arm_feature_set;

/* Test whether CPU and FEAT have any features in common.  */
#define ARM_CPU_HAS_FEATURE(CPU,FEAT) \
  (((CPU).core[0] & (FEAT).core[0]) != 0 \
   || ((CPU).core[1] & (FEAT).core[1]) != 0 \
   || ((CPU).coproc & (FEAT).coproc) != 0)

/* Tests whether the features of A are a subset of B.  */
#define ARM_FSET_CPU_SUBSET(A,B) \
  (((A).core[0] & (B).core[0]) == (A).core[0] \
   && ((A).core[1] & (B).core[1]) == (A).core[1] \
   && ((A).coproc & (B).coproc) == (A).coproc)

#define ARM_CPU_IS_ANY(CPU) \
  ((CPU).core[0] == ((arm_feature_set)ARM_ANY).core[0] \
   && (CPU).core[1] == ((arm_feature_set)ARM_ANY).core[1])

#define ARM_MERGE_FEATURE_SETS(TARG,F1,F2)              \
  do                                                    \
    {                                                   \
      (TARG).core[0] = (F1).core[0] | (F2).core[0];     \
      (TARG).core[1] = (F1).core[1] | (F2).core[1];     \
      (TARG).coproc = (F1).coproc | (F2).coproc;        \
    }                                                   \
  while (0)

#define ARM_CLEAR_FEATURE(TARG,F1,F2)                   \
  do                                                    \
    {                                                   \
      (TARG).core[0] = (F1).core[0] &~ (F2).core[0];    \
      (TARG).core[1] = (F1).core[1] &~ (F2).core[1];    \
      (TARG).coproc = (F1).coproc &~ (F2).coproc;       \
    }                                                   \
  while (0)

#define ARM_FEATURE_COPY(F1, F2)                \
  do                                            \
    {                                           \
      (F1).core[0] = (F2).core[0];              \
      (F1).core[1] = (F2).core[1];              \
      (F1).coproc = (F2).coproc;                \
    }                                           \
  while (0)

#define ARM_FEATURE_EQUAL(T1,T2)                \
  (   (T1).core[0] == (T2).core[0]              \
   && (T1).core[1] == (T2).core[1]              \
   && (T1).coproc  == (T2).coproc)

#define ARM_FEATURE_ZERO(T)                     \
  ((T).core[0] == 0 && (T).core[1] == 0 && (T).coproc == 0)

#define ARM_FEATURE_CORE_EQUAL(T1, T2)          \
  ((T1).core[0] == (T2).core[0] && (T1).core[1] == (T2).core[1])

#define ARM_FEATURE_LOW(core, coproc) {{(core), 0}, (coproc)}
#define ARM_FEATURE_CORE(core1, core2) {{(core1), (core2)}, 0}
#define ARM_FEATURE_CORE_LOW(core) {{(core), 0}, 0}
#define ARM_FEATURE_CORE_HIGH(core) {{0, (core)}, 0}
#define ARM_FEATURE_COPROC(coproc) {{0, 0}, (coproc)}
#define ARM_FEATURE(core1, core2, coproc) {{(core1), (core2)}, (coproc)}