/* ARM assembler/disassembler support.
   Copyright (C) 2004-2025 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.		     */
#define ARM_EXT2_V8_5A	     0x00001000	/* ARM V8.5A.			     */
#define ARM_EXT2_SB	     0x00002000	/* Speculation Barrier instruction.  */
#define ARM_EXT2_PREDRES     0x00004000	/* Prediction Restriction insns.     */
#define ARM_EXT2_V8_1M_MAIN  0x00008000 /* ARMv8.1-M Mainline.		     */
#define ARM_EXT2_V8_6A	     0x00010000	/* ARM V8.6A.			     */
#define ARM_EXT2_BF16	     0x00020000 /* ARMv8 bfloat16.		     */
#define ARM_EXT2_I8MM	     0x00040000 /* ARMv8.6A i8mm.		     */
#define ARM_EXT2_CRC	     0x00080000	/* ARMv8 CRC32 */
#define ARM_EXT2_MVE	     0x00100000	/* MVE Integer extension.	   */
#define ARM_EXT2_MVE_FP	     0x00200000	/* MVE Floating Point extension.   */
#define ARM_EXT2_CDE	     0x00400000 /* Custom Datapath Extension.	   */
#define ARM_EXT2_CDE0	     0x00800000 /* Using CDE coproc 0.	   */
#define ARM_EXT2_CDE1	     0x01000000 /* Using CDE coproc 1.	   */
#define ARM_EXT2_CDE2	     0x02000000 /* Using CDE coproc 2.	   */
#define ARM_EXT2_CDE3	     0x04000000 /* Using CDE coproc 3.	   */
#define ARM_EXT2_CDE4	     0x08000000 /* Using CDE coproc 4.	   */
#define ARM_EXT2_CDE5	     0x10000000 /* Using CDE coproc 5.	   */
#define ARM_EXT2_CDE6	     0x20000000 /* Using CDE coproc 6.	   */
#define ARM_EXT2_CDE7	     0x40000000 /* Using CDE coproc 7.	   */
#define ARM_EXT2_V8R	     0x80000000	/* Arm V8R.	               */

#define ARM_EXT3_PACBTI	     0x00000001 /* Arm v8-M Mainline Pointer
					   Authentication and Branch
					   Target Identification
					   Extension.  */
#define ARM_EXT3_V9A	        0x00000002 /* Armv9-A.	               */

/* Co-processor space extensions.  */
#define ARM_CEXT_XSCALE	     0x00000001	/* Allow MIA etc.	 	   */
/* unused		     0x00000002	*/
#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.		   */
/* unused		     0x40000000	*/
/* unused		     0x20000000	*/
/* unused		     0x10000000	*/
#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.		   */
/* Unused                    0x00004000	*/
#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_DSP		      \
					   | ARM_EXT_V6_NOTM)
#define ARM_AEXT_V6M   ((ARM_AEXT_V6K	   | ARM_EXT_V6M    | ARM_EXT_BARRIER \
					   | ARM_EXT_THUMB_MSR)		      \
			& ~(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_AEXT2_V8_5A	(ARM_AEXT2_V8_4A   | ARM_EXT2_V8_5A | ARM_EXT2_SB     \
					   | ARM_EXT2_PREDRES)
#define ARM_AEXT2_V8_6A	(ARM_AEXT2_V8_5A   | ARM_EXT2_V8_6A | ARM_EXT2_BF16)
#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_BASE	(ARM_EXT2_V8M	    | ARM_EXT2_ATOMICS	      \
						    | ARM_EXT2_V6T2_V8M)
#define ARM_AEXT2_V8M_MAIN	(ARM_AEXT2_V8M_BASE | 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_EXT2_V8R | ARM_AEXT2_V8AR)
#define ARM_AEXT_V8_1M_MAIN	 ARM_AEXT_V8M_MAIN
#define ARM_AEXT2_V8_1M_MAIN	(ARM_AEXT2_V8M_MAIN | ARM_EXT2_V8_1M_MAIN     \
						    | ARM_EXT2_FP16_INST)

#define ARM_AEXT3_V8_1M_MAIN_PACBTI	(ARM_AEXT2_V8M_MAIN | ARM_EXT3_PACBTI)

/* 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_NEON_ARMV8_1  (FPU_NEON_ARMV8    | FPU_NEON_EXT_RDMA)
#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)

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

#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 FPU_ARCH_NEON_VFP_ARMV8_1					 \
				ARM_FEATURE_COPROC (FPU_NEON_ARMV8_1	 \
						    | FPU_VFP_ARMV8)
#define FPU_ARCH_CRYPTO_NEON_VFP_ARMV8_1				 \
				ARM_FEATURE_COPROC (FPU_CRYPTO_ARMV8	 \
						    | FPU_NEON_ARMV8_1	 \
						    | FPU_VFP_ARMV8)

#define FPU_ARCH_DOTPROD_NEON_VFP_ARMV8					 \
				ARM_FEATURE_COPROC (FPU_NEON_EXT_DOTPROD \
						    | FPU_NEON_ARMV8_1	 \
						    | FPU_VFP_ARMV8)

#define FPU_ARCH_NEON_VFP_ARMV8_2_FP16					 \
      ARM_FEATURE (0, ARM_EXT2_FP16_INST,				 \
		   FPU_NEON_ARMV8_1 | FPU_VFP_ARMV8)

#define FPU_ARCH_NEON_VFP_ARMV8_2_FP16FML				 \
      ARM_FEATURE (0, ARM_EXT2_FP16_INST | ARM_EXT2_FP16_FML,		 \
		   FPU_NEON_ARMV8_1 | FPU_VFP_ARMV8)

#define FPU_ARCH_NEON_VFP_ARMV8_4_FP16FML				 \
      ARM_FEATURE (0, ARM_EXT2_FP16_INST | ARM_EXT2_FP16_FML,		 \
		   FPU_NEON_ARMV8_1 | FPU_VFP_ARMV8 | FPU_NEON_EXT_DOTPROD)

#define FPU_ARCH_CRYPTO_NEON_VFP_ARMV8_4				 \
			      ARM_FEATURE_COPROC (FPU_CRYPTO_ARMV8	 \
						  | FPU_NEON_ARMV8_1	 \
						  | FPU_VFP_ARMV8	 \
						  | FPU_NEON_EXT_DOTPROD)

#define FPU_ARCH_ENDIAN_PURE ARM_FEATURE_COPROC (FPU_ENDIAN_PURE)

#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_V8_1A	 ARM_FEATURE (ARM_AEXT_V8A, ARM_AEXT2_V8_1A	   \
				      | ARM_EXT2_CRC,  FPU_NEON_EXT_RDMA)
#define ARM_ARCH_V8_2A	 ARM_FEATURE (ARM_AEXT_V8A, ARM_AEXT2_V8_2A	   \
				      | ARM_EXT2_CRC,  FPU_NEON_EXT_RDMA)
#define ARM_ARCH_V8_3A	 ARM_FEATURE (ARM_AEXT_V8A, ARM_AEXT2_V8_3A	   \
				      | ARM_EXT2_CRC, FPU_NEON_EXT_RDMA)
#define ARM_ARCH_V8_4A	 ARM_FEATURE (ARM_AEXT_V8A, ARM_AEXT2_V8_4A	   \
				      | ARM_EXT2_CRC, FPU_NEON_EXT_RDMA	   \
						    | FPU_NEON_EXT_DOTPROD)
#define ARM_ARCH_V8_5A	 ARM_FEATURE (ARM_AEXT_V8A, ARM_AEXT2_V8_5A	   \
				      | ARM_EXT2_CRC, FPU_NEON_EXT_RDMA	   \
						    | FPU_NEON_EXT_DOTPROD)
#define ARM_ARCH_V8_6A	 ARM_FEATURE (ARM_AEXT_V8A, ARM_AEXT2_V8_6A	   \
				      | ARM_EXT2_CRC, FPU_NEON_EXT_RDMA	   \
						    | FPU_NEON_EXT_DOTPROD)
#define ARM_ARCH_V8_7A	 ARM_ARCH_V8_6A
#define ARM_ARCH_V8_8A	 ARM_ARCH_V8_7A
#define ARM_ARCH_V8_9A	 ARM_ARCH_V8_8A
#define ARM_ARCH_V8M_BASE      ARM_FEATURE_CORE (ARM_AEXT_V8M_BASE,	   \
						 ARM_AEXT2_V8M_BASE)
#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)
#define ARM_ARCH_V8R_CRC       ARM_FEATURE_CORE (ARM_AEXT_V8R,		   \
						 ARM_AEXT2_V8R | ARM_EXT2_CRC)
#define ARM_ARCH_V8_1M_MAIN    ARM_FEATURE_CORE (ARM_AEXT_V8_1M_MAIN,	   \
						 ARM_AEXT2_V8_1M_MAIN)
#define ARM_ARCH_V9A	       ARM_FEATURE_ALL(ARM_AEXT_V8A,	   \
				      ARM_AEXT2_V8_5A | ARM_EXT2_CRC,	   \
				      ARM_EXT3_V9A,	   \
                      FPU_NEON_EXT_RDMA	| FPU_NEON_EXT_DOTPROD)
#define ARM_ARCH_V9_1A	 ARM_FEATURE_ALL (ARM_AEXT_V8A,			   \
				          ARM_AEXT2_V8_6A | ARM_EXT2_CRC,  \
					  ARM_EXT3_V9A,	   		   \
					  FPU_NEON_EXT_RDMA		   \
					  | FPU_NEON_EXT_DOTPROD)
#define ARM_ARCH_V9_2A   ARM_ARCH_V9_1A
#define ARM_ARCH_V9_3A   ARM_ARCH_V9_2A
#define ARM_ARCH_V9_4A   ARM_ARCH_V9_3A
#define ARM_ARCH_V9_5A   ARM_ARCH_V9_4A

/* Some useful combinations:  */
#define ARM_ARCH_NONE	ARM_FEATURE_ALL (0, 0, 0, 0)
#define FPU_NONE	ARM_FEATURE_ALL (0, 0, 0, 0)
#define ARM_ARCH_UNKNOWN	ARM_FEATURE_ALL (-1, -1 & ~(ARM_EXT2_MVE | ARM_EXT2_MVE_FP), -1, -1)	/* Machine type is unknown.  */
#define ARM_ANY		ARM_FEATURE_ALL (-1, -1 & ~(ARM_EXT2_MVE | ARM_EXT2_MVE_FP), -1, 0)	/* Any basic core.  */
#define FPU_ANY		ARM_FEATURE_COPROC (-1 & ~(ARM_CEXT_XSCALE | ARM_CEXT_IWMMXT | ARM_CEXT_IWMMXT2)) /* Any FPU.  */
#define FPU_ANY_HARD	ARM_FEATURE_COPROC (FPU_VFP_HARD)
/* 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)
/* 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[0:1]
   have been occupied, so new feature should use bit in element core[2]
   and use macro ARM_FEATURE to initialize the feature set variable.  */
typedef struct
{
  unsigned long core[3];
  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).core[2] & (FEAT).core[2]) != 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).core[2] & (B).core[2]) == (A).core[2] \
   && ((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] \
   && (CPU).core[2] == ((arm_feature_set)ARM_ANY).core[2])

#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).core[2] = (F1).core[2] | (F2).core[2];	\
      (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).core[2] = (F1).core[2] &~ (F2).core[2];	\
      (TARG).coproc = (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).core[2] == (T2).core[2]		\
   && (T1).coproc  == (T2).coproc)

#define ARM_FEATURE_ZERO(T)			\
  ((T).core[0] == 0				\
   && (T).core[1] == 0				\
   && (T).core[2] == 0				\
   && (T).coproc == 0)

#define ARM_FEATURE_CORE_EQUAL(T1, T2)		\
  ((T1).core[0] == (T2).core[0]			\
   && (T1).core[1] == (T2).core[1]		\
   && (T1).core[2] == (T2).core[2])

#define ARM_FEATURE_LOW(core, coproc) {{(core), 0, 0}, (coproc)}
#define ARM_FEATURE_CORE(core1, core2) {{(core1), (core2), 0}, 0}
#define ARM_FEATURE_CORE_LOW(core) {{(core), 0, 0}, 0}
#define ARM_FEATURE_CORE_HIGH(core) {{0, (core), 0}, 0}
#define ARM_FEATURE_CORE_HIGH_HIGH(core) {{0, 0, (core)}, 0}
#define ARM_FEATURE_COPROC(coproc) {{0, 0, 0}, (coproc)}
#define ARM_FEATURE(core1, core2, coproc) {{(core1), (core2), 0}, (coproc)}
/* Below macro is used to set all fields in arm_feature_set struct.
*/
#define ARM_FEATURE_ALL(core1, core2, core3, coproc) {{(core1), (core2), (core3)}, (coproc)}