1 /* AArch64 assembler/disassembler support.
3 Copyright (C) 2009-2016 Free Software Foundation, Inc.
4 Contributed by ARM Ltd.
6 This file is part of GNU Binutils.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3 of the license, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; see the file COPYING3. If not,
20 see <http://www.gnu.org/licenses/>. */
22 #ifndef OPCODE_AARCH64_H
23 #define OPCODE_AARCH64_H
26 #include "bfd_stdint.h"
34 /* The offset for pc-relative addressing is currently defined to be 0. */
35 #define AARCH64_PCREL_OFFSET 0
37 typedef uint32_t aarch64_insn;
39 /* The following bitmasks control CPU features. */
40 #define AARCH64_FEATURE_V8 0x00000001 /* All processors. */
41 #define AARCH64_FEATURE_V8_2 0x00000020 /* ARMv8.2 processors. */
42 #define AARCH64_FEATURE_CRYPTO 0x00010000 /* Crypto instructions. */
43 #define AARCH64_FEATURE_FP 0x00020000 /* FP instructions. */
44 #define AARCH64_FEATURE_SIMD 0x00040000 /* SIMD instructions. */
45 #define AARCH64_FEATURE_CRC 0x00080000 /* CRC instructions. */
46 #define AARCH64_FEATURE_LSE 0x00100000 /* LSE instructions. */
47 #define AARCH64_FEATURE_PAN 0x00200000 /* PAN instructions. */
48 #define AARCH64_FEATURE_LOR 0x00400000 /* LOR instructions. */
49 #define AARCH64_FEATURE_RDMA 0x00800000 /* v8.1 SIMD instructions. */
50 #define AARCH64_FEATURE_V8_1 0x01000000 /* v8.1 features. */
51 #define AARCH64_FEATURE_F16 0x02000000 /* v8.2 FP16 instructions. */
52 #define AARCH64_FEATURE_RAS 0x04000000 /* RAS Extensions. */
53 #define AARCH64_FEATURE_PROFILE 0x08000000 /* Statistical Profiling. */
55 /* Architectures are the sum of the base and extensions. */
56 #define AARCH64_ARCH_V8 AARCH64_FEATURE (AARCH64_FEATURE_V8, \
58 | AARCH64_FEATURE_SIMD)
59 #define AARCH64_ARCH_V8_1 AARCH64_FEATURE (AARCH64_FEATURE_V8, \
61 | AARCH64_FEATURE_SIMD \
62 | AARCH64_FEATURE_CRC \
63 | AARCH64_FEATURE_V8_1 \
64 | AARCH64_FEATURE_LSE \
65 | AARCH64_FEATURE_PAN \
66 | AARCH64_FEATURE_LOR \
67 | AARCH64_FEATURE_RDMA)
68 #define AARCH64_ARCH_V8_2 AARCH64_FEATURE (AARCH64_FEATURE_V8, \
69 AARCH64_FEATURE_V8_2 \
70 | AARCH64_FEATURE_F16 \
71 | AARCH64_FEATURE_RAS \
72 | AARCH64_FEATURE_FP \
73 | AARCH64_FEATURE_SIMD \
74 | AARCH64_FEATURE_CRC \
75 | AARCH64_FEATURE_V8_1 \
76 | AARCH64_FEATURE_LSE \
77 | AARCH64_FEATURE_PAN \
78 | AARCH64_FEATURE_LOR \
79 | AARCH64_FEATURE_RDMA)
81 #define AARCH64_ARCH_NONE AARCH64_FEATURE (0, 0)
82 #define AARCH64_ANY AARCH64_FEATURE (-1, 0) /* Any basic core. */
84 /* CPU-specific features. */
85 typedef unsigned long aarch64_feature_set;
87 #define AARCH64_CPU_HAS_ALL_FEATURES(CPU,FEAT) \
88 ((~(CPU) & (FEAT)) == 0)
90 #define AARCH64_CPU_HAS_ANY_FEATURES(CPU,FEAT) \
91 (((CPU) & (FEAT)) != 0)
93 #define AARCH64_CPU_HAS_FEATURE(CPU,FEAT) \
94 AARCH64_CPU_HAS_ALL_FEATURES (CPU,FEAT)
96 #define AARCH64_MERGE_FEATURE_SETS(TARG,F1,F2) \
99 (TARG) = (F1) | (F2); \
103 #define AARCH64_CLEAR_FEATURE(TARG,F1,F2) \
106 (TARG) = (F1) &~ (F2); \
110 #define AARCH64_FEATURE(core,coproc) ((core) | (coproc))
112 enum aarch64_operand_class
114 AARCH64_OPND_CLASS_NIL,
115 AARCH64_OPND_CLASS_INT_REG,
116 AARCH64_OPND_CLASS_MODIFIED_REG,
117 AARCH64_OPND_CLASS_FP_REG,
118 AARCH64_OPND_CLASS_SIMD_REG,
119 AARCH64_OPND_CLASS_SIMD_ELEMENT,
120 AARCH64_OPND_CLASS_SISD_REG,
121 AARCH64_OPND_CLASS_SIMD_REGLIST,
122 AARCH64_OPND_CLASS_CP_REG,
123 AARCH64_OPND_CLASS_SVE_REG,
124 AARCH64_OPND_CLASS_PRED_REG,
125 AARCH64_OPND_CLASS_ADDRESS,
126 AARCH64_OPND_CLASS_IMMEDIATE,
127 AARCH64_OPND_CLASS_SYSTEM,
128 AARCH64_OPND_CLASS_COND,
131 /* Operand code that helps both parsing and coding.
132 Keep AARCH64_OPERANDS synced. */
136 AARCH64_OPND_NIL, /* no operand---MUST BE FIRST!*/
138 AARCH64_OPND_Rd, /* Integer register as destination. */
139 AARCH64_OPND_Rn, /* Integer register as source. */
140 AARCH64_OPND_Rm, /* Integer register as source. */
141 AARCH64_OPND_Rt, /* Integer register used in ld/st instructions. */
142 AARCH64_OPND_Rt2, /* Integer register used in ld/st pair instructions. */
143 AARCH64_OPND_Rs, /* Integer register used in ld/st exclusive. */
144 AARCH64_OPND_Ra, /* Integer register used in ddp_3src instructions. */
145 AARCH64_OPND_Rt_SYS, /* Integer register used in system instructions. */
147 AARCH64_OPND_Rd_SP, /* Integer Rd or SP. */
148 AARCH64_OPND_Rn_SP, /* Integer Rn or SP. */
149 AARCH64_OPND_PAIRREG, /* Paired register operand. */
150 AARCH64_OPND_Rm_EXT, /* Integer Rm extended. */
151 AARCH64_OPND_Rm_SFT, /* Integer Rm shifted. */
153 AARCH64_OPND_Fd, /* Floating-point Fd. */
154 AARCH64_OPND_Fn, /* Floating-point Fn. */
155 AARCH64_OPND_Fm, /* Floating-point Fm. */
156 AARCH64_OPND_Fa, /* Floating-point Fa. */
157 AARCH64_OPND_Ft, /* Floating-point Ft. */
158 AARCH64_OPND_Ft2, /* Floating-point Ft2. */
160 AARCH64_OPND_Sd, /* AdvSIMD Scalar Sd. */
161 AARCH64_OPND_Sn, /* AdvSIMD Scalar Sn. */
162 AARCH64_OPND_Sm, /* AdvSIMD Scalar Sm. */
164 AARCH64_OPND_Vd, /* AdvSIMD Vector Vd. */
165 AARCH64_OPND_Vn, /* AdvSIMD Vector Vn. */
166 AARCH64_OPND_Vm, /* AdvSIMD Vector Vm. */
167 AARCH64_OPND_VdD1, /* AdvSIMD <Vd>.D[1]; for FMOV only. */
168 AARCH64_OPND_VnD1, /* AdvSIMD <Vn>.D[1]; for FMOV only. */
169 AARCH64_OPND_Ed, /* AdvSIMD Vector Element Vd. */
170 AARCH64_OPND_En, /* AdvSIMD Vector Element Vn. */
171 AARCH64_OPND_Em, /* AdvSIMD Vector Element Vm. */
172 AARCH64_OPND_LVn, /* AdvSIMD Vector register list used in e.g. TBL. */
173 AARCH64_OPND_LVt, /* AdvSIMD Vector register list used in ld/st. */
174 AARCH64_OPND_LVt_AL, /* AdvSIMD Vector register list for loading single
175 structure to all lanes. */
176 AARCH64_OPND_LEt, /* AdvSIMD Vector Element list. */
178 AARCH64_OPND_Cn, /* Co-processor register in CRn field. */
179 AARCH64_OPND_Cm, /* Co-processor register in CRm field. */
181 AARCH64_OPND_IDX, /* AdvSIMD EXT index operand. */
182 AARCH64_OPND_IMM_VLSL,/* Immediate for shifting vector registers left. */
183 AARCH64_OPND_IMM_VLSR,/* Immediate for shifting vector registers right. */
184 AARCH64_OPND_SIMD_IMM,/* AdvSIMD modified immediate without shift. */
185 AARCH64_OPND_SIMD_IMM_SFT, /* AdvSIMD modified immediate with shift. */
186 AARCH64_OPND_SIMD_FPIMM,/* AdvSIMD 8-bit fp immediate. */
187 AARCH64_OPND_SHLL_IMM,/* Immediate shift for AdvSIMD SHLL instruction
189 AARCH64_OPND_IMM0, /* Immediate for #0. */
190 AARCH64_OPND_FPIMM0, /* Immediate for #0.0. */
191 AARCH64_OPND_FPIMM, /* Floating-point Immediate. */
192 AARCH64_OPND_IMMR, /* Immediate #<immr> in e.g. BFM. */
193 AARCH64_OPND_IMMS, /* Immediate #<imms> in e.g. BFM. */
194 AARCH64_OPND_WIDTH, /* Immediate #<width> in e.g. BFI. */
195 AARCH64_OPND_IMM, /* Immediate. */
196 AARCH64_OPND_UIMM3_OP1,/* Unsigned 3-bit immediate in the op1 field. */
197 AARCH64_OPND_UIMM3_OP2,/* Unsigned 3-bit immediate in the op2 field. */
198 AARCH64_OPND_UIMM4, /* Unsigned 4-bit immediate in the CRm field. */
199 AARCH64_OPND_UIMM7, /* Unsigned 7-bit immediate in the CRm:op2 fields. */
200 AARCH64_OPND_BIT_NUM, /* Immediate. */
201 AARCH64_OPND_EXCEPTION,/* imm16 operand in exception instructions. */
202 AARCH64_OPND_CCMP_IMM,/* Immediate in conditional compare instructions. */
203 AARCH64_OPND_NZCV, /* Flag bit specifier giving an alternative value for
204 each condition flag. */
206 AARCH64_OPND_LIMM, /* Logical Immediate. */
207 AARCH64_OPND_AIMM, /* Arithmetic immediate. */
208 AARCH64_OPND_HALF, /* #<imm16>{, LSL #<shift>} operand in move wide. */
209 AARCH64_OPND_FBITS, /* FP #<fbits> operand in e.g. SCVTF */
210 AARCH64_OPND_IMM_MOV, /* Immediate operand for the MOV alias. */
212 AARCH64_OPND_COND, /* Standard condition as the last operand. */
213 AARCH64_OPND_COND1, /* Same as the above, but excluding AL and NV. */
215 AARCH64_OPND_ADDR_ADRP, /* Memory address for ADRP */
216 AARCH64_OPND_ADDR_PCREL14, /* 14-bit PC-relative address for e.g. TBZ. */
217 AARCH64_OPND_ADDR_PCREL19, /* 19-bit PC-relative address for e.g. LDR. */
218 AARCH64_OPND_ADDR_PCREL21, /* 21-bit PC-relative address for e.g. ADR. */
219 AARCH64_OPND_ADDR_PCREL26, /* 26-bit PC-relative address for e.g. BL. */
221 AARCH64_OPND_ADDR_SIMPLE, /* Address of ld/st exclusive. */
222 AARCH64_OPND_ADDR_REGOFF, /* Address of register offset. */
223 AARCH64_OPND_ADDR_SIMM7, /* Address of signed 7-bit immediate. */
224 AARCH64_OPND_ADDR_SIMM9, /* Address of signed 9-bit immediate. */
225 AARCH64_OPND_ADDR_SIMM9_2, /* Same as the above, but the immediate is
226 negative or unaligned and there is
227 no writeback allowed. This operand code
228 is only used to support the programmer-
229 friendly feature of using LDR/STR as the
230 the mnemonic name for LDUR/STUR instructions
231 wherever there is no ambiguity. */
232 AARCH64_OPND_ADDR_UIMM12, /* Address of unsigned 12-bit immediate. */
233 AARCH64_OPND_SIMD_ADDR_SIMPLE,/* Address of ld/st multiple structures. */
234 AARCH64_OPND_SIMD_ADDR_POST, /* Address of ld/st multiple post-indexed. */
236 AARCH64_OPND_SYSREG, /* System register operand. */
237 AARCH64_OPND_PSTATEFIELD, /* PSTATE field name operand. */
238 AARCH64_OPND_SYSREG_AT, /* System register <at_op> operand. */
239 AARCH64_OPND_SYSREG_DC, /* System register <dc_op> operand. */
240 AARCH64_OPND_SYSREG_IC, /* System register <ic_op> operand. */
241 AARCH64_OPND_SYSREG_TLBI, /* System register <tlbi_op> operand. */
242 AARCH64_OPND_BARRIER, /* Barrier operand. */
243 AARCH64_OPND_BARRIER_ISB, /* Barrier operand for ISB. */
244 AARCH64_OPND_PRFOP, /* Prefetch operation. */
245 AARCH64_OPND_BARRIER_PSB, /* Barrier operand for PSB. */
247 AARCH64_OPND_SVE_ADDR_RI_S4xVL, /* SVE [<Xn|SP>, #<simm4>, MUL VL]. */
248 AARCH64_OPND_SVE_ADDR_RI_S4x2xVL, /* SVE [<Xn|SP>, #<simm4>*2, MUL VL]. */
249 AARCH64_OPND_SVE_ADDR_RI_S4x3xVL, /* SVE [<Xn|SP>, #<simm4>*3, MUL VL]. */
250 AARCH64_OPND_SVE_ADDR_RI_S4x4xVL, /* SVE [<Xn|SP>, #<simm4>*4, MUL VL]. */
251 AARCH64_OPND_SVE_ADDR_RI_S6xVL, /* SVE [<Xn|SP>, #<simm6>, MUL VL]. */
252 AARCH64_OPND_SVE_ADDR_RI_S9xVL, /* SVE [<Xn|SP>, #<simm9>, MUL VL]. */
253 AARCH64_OPND_SVE_ADDR_RI_U6, /* SVE [<Xn|SP>, #<uimm6>]. */
254 AARCH64_OPND_SVE_ADDR_RI_U6x2, /* SVE [<Xn|SP>, #<uimm6>*2]. */
255 AARCH64_OPND_SVE_ADDR_RI_U6x4, /* SVE [<Xn|SP>, #<uimm6>*4]. */
256 AARCH64_OPND_SVE_ADDR_RI_U6x8, /* SVE [<Xn|SP>, #<uimm6>*8]. */
257 AARCH64_OPND_SVE_ADDR_RR, /* SVE [<Xn|SP>, <Xm|XZR>]. */
258 AARCH64_OPND_SVE_ADDR_RR_LSL1, /* SVE [<Xn|SP>, <Xm|XZR>, LSL #1]. */
259 AARCH64_OPND_SVE_ADDR_RR_LSL2, /* SVE [<Xn|SP>, <Xm|XZR>, LSL #2]. */
260 AARCH64_OPND_SVE_ADDR_RR_LSL3, /* SVE [<Xn|SP>, <Xm|XZR>, LSL #3]. */
261 AARCH64_OPND_SVE_ADDR_RX, /* SVE [<Xn|SP>, <Xm>]. */
262 AARCH64_OPND_SVE_ADDR_RX_LSL1, /* SVE [<Xn|SP>, <Xm>, LSL #1]. */
263 AARCH64_OPND_SVE_ADDR_RX_LSL2, /* SVE [<Xn|SP>, <Xm>, LSL #2]. */
264 AARCH64_OPND_SVE_ADDR_RX_LSL3, /* SVE [<Xn|SP>, <Xm>, LSL #3]. */
265 AARCH64_OPND_SVE_ADDR_RZ, /* SVE [<Xn|SP>, Zm.D]. */
266 AARCH64_OPND_SVE_ADDR_RZ_LSL1, /* SVE [<Xn|SP>, Zm.D, LSL #1]. */
267 AARCH64_OPND_SVE_ADDR_RZ_LSL2, /* SVE [<Xn|SP>, Zm.D, LSL #2]. */
268 AARCH64_OPND_SVE_ADDR_RZ_LSL3, /* SVE [<Xn|SP>, Zm.D, LSL #3]. */
269 AARCH64_OPND_SVE_ADDR_RZ_XTW_14, /* SVE [<Xn|SP>, Zm.<T>, (S|U)XTW].
270 Bit 14 controls S/U choice. */
271 AARCH64_OPND_SVE_ADDR_RZ_XTW_22, /* SVE [<Xn|SP>, Zm.<T>, (S|U)XTW].
272 Bit 22 controls S/U choice. */
273 AARCH64_OPND_SVE_ADDR_RZ_XTW1_14, /* SVE [<Xn|SP>, Zm.<T>, (S|U)XTW #1].
274 Bit 14 controls S/U choice. */
275 AARCH64_OPND_SVE_ADDR_RZ_XTW1_22, /* SVE [<Xn|SP>, Zm.<T>, (S|U)XTW #1].
276 Bit 22 controls S/U choice. */
277 AARCH64_OPND_SVE_ADDR_RZ_XTW2_14, /* SVE [<Xn|SP>, Zm.<T>, (S|U)XTW #2].
278 Bit 14 controls S/U choice. */
279 AARCH64_OPND_SVE_ADDR_RZ_XTW2_22, /* SVE [<Xn|SP>, Zm.<T>, (S|U)XTW #2].
280 Bit 22 controls S/U choice. */
281 AARCH64_OPND_SVE_ADDR_RZ_XTW3_14, /* SVE [<Xn|SP>, Zm.<T>, (S|U)XTW #3].
282 Bit 14 controls S/U choice. */
283 AARCH64_OPND_SVE_ADDR_RZ_XTW3_22, /* SVE [<Xn|SP>, Zm.<T>, (S|U)XTW #3].
284 Bit 22 controls S/U choice. */
285 AARCH64_OPND_SVE_ADDR_ZI_U5, /* SVE [Zn.<T>, #<uimm5>]. */
286 AARCH64_OPND_SVE_ADDR_ZI_U5x2, /* SVE [Zn.<T>, #<uimm5>*2]. */
287 AARCH64_OPND_SVE_ADDR_ZI_U5x4, /* SVE [Zn.<T>, #<uimm5>*4]. */
288 AARCH64_OPND_SVE_ADDR_ZI_U5x8, /* SVE [Zn.<T>, #<uimm5>*8]. */
289 AARCH64_OPND_SVE_ADDR_ZZ_LSL, /* SVE [Zn.<T>, Zm,<T>, LSL #<msz>]. */
290 AARCH64_OPND_SVE_ADDR_ZZ_SXTW, /* SVE [Zn.<T>, Zm,<T>, SXTW #<msz>]. */
291 AARCH64_OPND_SVE_ADDR_ZZ_UXTW, /* SVE [Zn.<T>, Zm,<T>, UXTW #<msz>]. */
292 AARCH64_OPND_SVE_PATTERN, /* SVE vector pattern enumeration. */
293 AARCH64_OPND_SVE_PATTERN_SCALED, /* Likewise, with additional MUL factor. */
294 AARCH64_OPND_SVE_PRFOP, /* SVE prefetch operation. */
295 AARCH64_OPND_SVE_Pd, /* SVE p0-p15 in Pd. */
296 AARCH64_OPND_SVE_Pg3, /* SVE p0-p7 in Pg. */
297 AARCH64_OPND_SVE_Pg4_5, /* SVE p0-p15 in Pg, bits [8,5]. */
298 AARCH64_OPND_SVE_Pg4_10, /* SVE p0-p15 in Pg, bits [13,10]. */
299 AARCH64_OPND_SVE_Pg4_16, /* SVE p0-p15 in Pg, bits [19,16]. */
300 AARCH64_OPND_SVE_Pm, /* SVE p0-p15 in Pm. */
301 AARCH64_OPND_SVE_Pn, /* SVE p0-p15 in Pn. */
302 AARCH64_OPND_SVE_Pt, /* SVE p0-p15 in Pt. */
303 AARCH64_OPND_SVE_Za_5, /* SVE vector register in Za, bits [9,5]. */
304 AARCH64_OPND_SVE_Za_16, /* SVE vector register in Za, bits [20,16]. */
305 AARCH64_OPND_SVE_Zd, /* SVE vector register in Zd. */
306 AARCH64_OPND_SVE_Zm_5, /* SVE vector register in Zm, bits [9,5]. */
307 AARCH64_OPND_SVE_Zm_16, /* SVE vector register in Zm, bits [20,16]. */
308 AARCH64_OPND_SVE_Zn, /* SVE vector register in Zn. */
309 AARCH64_OPND_SVE_Zn_INDEX, /* Indexed SVE vector register, for DUP. */
310 AARCH64_OPND_SVE_ZnxN, /* SVE vector register list in Zn. */
311 AARCH64_OPND_SVE_Zt, /* SVE vector register in Zt. */
312 AARCH64_OPND_SVE_ZtxN, /* SVE vector register list in Zt. */
315 /* Qualifier constrains an operand. It either specifies a variant of an
316 operand type or limits values available to an operand type.
318 N.B. Order is important; keep aarch64_opnd_qualifiers synced. */
320 enum aarch64_opnd_qualifier
322 /* Indicating no further qualification on an operand. */
323 AARCH64_OPND_QLF_NIL,
325 /* Qualifying an operand which is a general purpose (integer) register;
326 indicating the operand data size or a specific register. */
327 AARCH64_OPND_QLF_W, /* Wn, WZR or WSP. */
328 AARCH64_OPND_QLF_X, /* Xn, XZR or XSP. */
329 AARCH64_OPND_QLF_WSP, /* WSP. */
330 AARCH64_OPND_QLF_SP, /* SP. */
332 /* Qualifying an operand which is a floating-point register, a SIMD
333 vector element or a SIMD vector element list; indicating operand data
334 size or the size of each SIMD vector element in the case of a SIMD
336 These qualifiers are also used to qualify an address operand to
337 indicate the size of data element a load/store instruction is
339 They are also used for the immediate shift operand in e.g. SSHR. Such
340 a use is only for the ease of operand encoding/decoding and qualifier
341 sequence matching; such a use should not be applied widely; use the value
342 constraint qualifiers for immediate operands wherever possible. */
343 AARCH64_OPND_QLF_S_B,
344 AARCH64_OPND_QLF_S_H,
345 AARCH64_OPND_QLF_S_S,
346 AARCH64_OPND_QLF_S_D,
347 AARCH64_OPND_QLF_S_Q,
349 /* Qualifying an operand which is a SIMD vector register or a SIMD vector
350 register list; indicating register shape.
351 They are also used for the immediate shift operand in e.g. SSHR. Such
352 a use is only for the ease of operand encoding/decoding and qualifier
353 sequence matching; such a use should not be applied widely; use the value
354 constraint qualifiers for immediate operands wherever possible. */
355 AARCH64_OPND_QLF_V_8B,
356 AARCH64_OPND_QLF_V_16B,
357 AARCH64_OPND_QLF_V_2H,
358 AARCH64_OPND_QLF_V_4H,
359 AARCH64_OPND_QLF_V_8H,
360 AARCH64_OPND_QLF_V_2S,
361 AARCH64_OPND_QLF_V_4S,
362 AARCH64_OPND_QLF_V_1D,
363 AARCH64_OPND_QLF_V_2D,
364 AARCH64_OPND_QLF_V_1Q,
366 AARCH64_OPND_QLF_P_Z,
367 AARCH64_OPND_QLF_P_M,
369 /* Constraint on value. */
370 AARCH64_OPND_QLF_imm_0_7,
371 AARCH64_OPND_QLF_imm_0_15,
372 AARCH64_OPND_QLF_imm_0_31,
373 AARCH64_OPND_QLF_imm_0_63,
374 AARCH64_OPND_QLF_imm_1_32,
375 AARCH64_OPND_QLF_imm_1_64,
377 /* Indicate whether an AdvSIMD modified immediate operand is shift-zeros
379 AARCH64_OPND_QLF_LSL,
380 AARCH64_OPND_QLF_MSL,
382 /* Special qualifier helping retrieve qualifier information during the
383 decoding time (currently not in use). */
384 AARCH64_OPND_QLF_RETRIEVE,
387 /* Instruction class. */
389 enum aarch64_insn_class
444 ldst_imm9, /* immpost or immpre */
463 /* Opcode enumerators. */
507 OP_MOV_IMM_LOG, /* MOV alias for moving bitmask immediate. */
508 OP_MOV_IMM_WIDE, /* MOV alias for moving wide immediate. */
509 OP_MOV_IMM_WIDEN, /* MOV alias for moving wide immediate (negated). */
511 OP_MOV_V, /* MOV alias for moving vector register. */
524 OP_BFC, /* ARMv8.2. */
541 OP_FCVTXN_S, /* Scalar version. */
550 OP_TOTAL_NUM, /* Pseudo. */
553 /* Maximum number of operands an instruction can have. */
554 #define AARCH64_MAX_OPND_NUM 6
555 /* Maximum number of qualifier sequences an instruction can have. */
556 #define AARCH64_MAX_QLF_SEQ_NUM 10
557 /* Operand qualifier typedef; optimized for the size. */
558 typedef unsigned char aarch64_opnd_qualifier_t;
559 /* Operand qualifier sequence typedef. */
560 typedef aarch64_opnd_qualifier_t \
561 aarch64_opnd_qualifier_seq_t [AARCH64_MAX_OPND_NUM];
563 /* FIXME: improve the efficiency. */
564 static inline bfd_boolean
565 empty_qualifier_sequence_p (const aarch64_opnd_qualifier_t *qualifiers)
568 for (i = 0; i < AARCH64_MAX_OPND_NUM; ++i)
569 if (qualifiers[i] != AARCH64_OPND_QLF_NIL)
574 /* This structure holds information for a particular opcode. */
576 struct aarch64_opcode
578 /* The name of the mnemonic. */
581 /* The opcode itself. Those bits which will be filled in with
582 operands are zeroes. */
585 /* The opcode mask. This is used by the disassembler. This is a
586 mask containing ones indicating those bits which must match the
587 opcode field, and zeroes indicating those bits which need not
588 match (and are presumably filled in by operands). */
591 /* Instruction class. */
592 enum aarch64_insn_class iclass;
594 /* Enumerator identifier. */
597 /* Which architecture variant provides this instruction. */
598 const aarch64_feature_set *avariant;
600 /* An array of operand codes. Each code is an index into the
601 operand table. They appear in the order which the operands must
602 appear in assembly code, and are terminated by a zero. */
603 enum aarch64_opnd operands[AARCH64_MAX_OPND_NUM];
605 /* A list of operand qualifier code sequence. Each operand qualifier
606 code qualifies the corresponding operand code. Each operand
607 qualifier sequence specifies a valid opcode variant and related
608 constraint on operands. */
609 aarch64_opnd_qualifier_seq_t qualifiers_list[AARCH64_MAX_QLF_SEQ_NUM];
611 /* Flags providing information about this instruction */
614 /* If nonzero, this operand and operand 0 are both registers and
615 are required to have the same register number. */
616 unsigned char tied_operand;
618 /* If non-NULL, a function to verify that a given instruction is valid. */
619 bfd_boolean (* verifier) (const struct aarch64_opcode *, const aarch64_insn);
622 typedef struct aarch64_opcode aarch64_opcode;
624 /* Table describing all the AArch64 opcodes. */
625 extern aarch64_opcode aarch64_opcode_table[];
628 #define F_ALIAS (1 << 0)
629 #define F_HAS_ALIAS (1 << 1)
630 /* Disassembly preference priority 1-3 (the larger the higher). If nothing
631 is specified, it is the priority 0 by default, i.e. the lowest priority. */
632 #define F_P1 (1 << 2)
633 #define F_P2 (2 << 2)
634 #define F_P3 (3 << 2)
635 /* Flag an instruction that is truly conditional executed, e.g. b.cond. */
636 #define F_COND (1 << 4)
637 /* Instruction has the field of 'sf'. */
638 #define F_SF (1 << 5)
639 /* Instruction has the field of 'size:Q'. */
640 #define F_SIZEQ (1 << 6)
641 /* Floating-point instruction has the field of 'type'. */
642 #define F_FPTYPE (1 << 7)
643 /* AdvSIMD scalar instruction has the field of 'size'. */
644 #define F_SSIZE (1 << 8)
645 /* AdvSIMD vector register arrangement specifier encoded in "imm5<3:0>:Q". */
647 /* Size of GPR operand in AdvSIMD instructions encoded in Q. */
648 #define F_GPRSIZE_IN_Q (1 << 10)
649 /* Size of Rt load signed instruction encoded in opc[0], i.e. bit 22. */
650 #define F_LDS_SIZE (1 << 11)
651 /* Optional operand; assume maximum of 1 operand can be optional. */
652 #define F_OPD0_OPT (1 << 12)
653 #define F_OPD1_OPT (2 << 12)
654 #define F_OPD2_OPT (3 << 12)
655 #define F_OPD3_OPT (4 << 12)
656 #define F_OPD4_OPT (5 << 12)
657 /* Default value for the optional operand when omitted from the assembly. */
658 #define F_DEFAULT(X) (((X) & 0x1f) << 15)
659 /* Instruction that is an alias of another instruction needs to be
660 encoded/decoded by converting it to/from the real form, followed by
661 the encoding/decoding according to the rules of the real opcode.
662 This compares to the direct coding using the alias's information.
663 N.B. this flag requires F_ALIAS to be used together. */
664 #define F_CONV (1 << 20)
665 /* Use together with F_ALIAS to indicate an alias opcode is a programmer
666 friendly pseudo instruction available only in the assembly code (thus will
667 not show up in the disassembly). */
668 #define F_PSEUDO (1 << 21)
669 /* Instruction has miscellaneous encoding/decoding rules. */
670 #define F_MISC (1 << 22)
671 /* Instruction has the field of 'N'; used in conjunction with F_SF. */
672 #define F_N (1 << 23)
673 /* Opcode dependent field. */
674 #define F_OD(X) (((X) & 0x7) << 24)
675 /* Instruction has the field of 'sz'. */
676 #define F_LSE_SZ (1 << 27)
677 /* Require an exact qualifier match, even for NIL qualifiers. */
678 #define F_STRICT (1ULL << 28)
679 /* Next bit is 29. */
681 static inline bfd_boolean
682 alias_opcode_p (const aarch64_opcode *opcode)
684 return (opcode->flags & F_ALIAS) ? TRUE : FALSE;
687 static inline bfd_boolean
688 opcode_has_alias (const aarch64_opcode *opcode)
690 return (opcode->flags & F_HAS_ALIAS) ? TRUE : FALSE;
693 /* Priority for disassembling preference. */
695 opcode_priority (const aarch64_opcode *opcode)
697 return (opcode->flags >> 2) & 0x3;
700 static inline bfd_boolean
701 pseudo_opcode_p (const aarch64_opcode *opcode)
703 return (opcode->flags & F_PSEUDO) != 0lu ? TRUE : FALSE;
706 static inline bfd_boolean
707 optional_operand_p (const aarch64_opcode *opcode, unsigned int idx)
709 return (((opcode->flags >> 12) & 0x7) == idx + 1)
713 static inline aarch64_insn
714 get_optional_operand_default_value (const aarch64_opcode *opcode)
716 return (opcode->flags >> 15) & 0x1f;
719 static inline unsigned int
720 get_opcode_dependent_value (const aarch64_opcode *opcode)
722 return (opcode->flags >> 24) & 0x7;
725 static inline bfd_boolean
726 opcode_has_special_coder (const aarch64_opcode *opcode)
728 return (opcode->flags & (F_SF | F_LSE_SZ | F_SIZEQ | F_FPTYPE | F_SSIZE | F_T
729 | F_GPRSIZE_IN_Q | F_LDS_SIZE | F_MISC | F_N | F_COND)) ? TRUE
733 struct aarch64_name_value_pair
739 extern const struct aarch64_name_value_pair aarch64_operand_modifiers [];
740 extern const struct aarch64_name_value_pair aarch64_barrier_options [16];
741 extern const struct aarch64_name_value_pair aarch64_prfops [32];
742 extern const struct aarch64_name_value_pair aarch64_hint_options [];
751 extern const aarch64_sys_reg aarch64_sys_regs [];
752 extern const aarch64_sys_reg aarch64_pstatefields [];
753 extern bfd_boolean aarch64_sys_reg_deprecated_p (const aarch64_sys_reg *);
754 extern bfd_boolean aarch64_sys_reg_supported_p (const aarch64_feature_set,
755 const aarch64_sys_reg *);
756 extern bfd_boolean aarch64_pstatefield_supported_p (const aarch64_feature_set,
757 const aarch64_sys_reg *);
764 } aarch64_sys_ins_reg;
766 extern bfd_boolean aarch64_sys_ins_reg_has_xt (const aarch64_sys_ins_reg *);
768 aarch64_sys_ins_reg_supported_p (const aarch64_feature_set,
769 const aarch64_sys_ins_reg *);
771 extern const aarch64_sys_ins_reg aarch64_sys_regs_ic [];
772 extern const aarch64_sys_ins_reg aarch64_sys_regs_dc [];
773 extern const aarch64_sys_ins_reg aarch64_sys_regs_at [];
774 extern const aarch64_sys_ins_reg aarch64_sys_regs_tlbi [];
776 /* Shift/extending operator kinds.
777 N.B. order is important; keep aarch64_operand_modifiers synced. */
778 enum aarch64_modifier_kind
799 aarch64_extend_operator_p (enum aarch64_modifier_kind);
801 enum aarch64_modifier_kind
802 aarch64_get_operand_modifier (const struct aarch64_name_value_pair *);
807 /* A list of names with the first one as the disassembly preference;
808 terminated by NULL if fewer than 3. */
809 const char *names[3];
813 extern const aarch64_cond aarch64_conds[16];
815 const aarch64_cond* get_cond_from_value (aarch64_insn value);
816 const aarch64_cond* get_inverted_cond (const aarch64_cond *cond);
818 /* Structure representing an operand. */
820 struct aarch64_opnd_info
822 enum aarch64_opnd type;
823 aarch64_opnd_qualifier_t qualifier;
840 unsigned first_regno : 5;
841 unsigned num_regs : 3;
842 /* 1 if it is a list of reg element. */
843 unsigned has_index : 1;
844 /* Lane index; valid only when has_index is 1. */
847 /* e.g. immediate or pc relative address offset. */
853 /* e.g. address in STR (register offset). */
866 unsigned pcrel : 1; /* PC-relative. */
867 unsigned writeback : 1;
868 unsigned preind : 1; /* Pre-indexed. */
869 unsigned postind : 1; /* Post-indexed. */
871 const aarch64_cond *cond;
872 /* The encoding of the system register. */
874 /* The encoding of the PSTATE field. */
875 aarch64_insn pstatefield;
876 const aarch64_sys_ins_reg *sysins_op;
877 const struct aarch64_name_value_pair *barrier;
878 const struct aarch64_name_value_pair *hint_option;
879 const struct aarch64_name_value_pair *prfop;
882 /* Operand shifter; in use when the operand is a register offset address,
883 add/sub extended reg, etc. e.g. <R><m>{, <extend> {#<amount>}}. */
886 enum aarch64_modifier_kind kind;
887 unsigned operator_present: 1; /* Only valid during encoding. */
888 /* Value of the 'S' field in ld/st reg offset; used only in decoding. */
889 unsigned amount_present: 1;
893 unsigned skip:1; /* Operand is not completed if there is a fixup needed
894 to be done on it. In some (but not all) of these
895 cases, we need to tell libopcodes to skip the
896 constraint checking and the encoding for this
897 operand, so that the libopcodes can pick up the
898 right opcode before the operand is fixed-up. This
899 flag should only be used during the
900 assembling/encoding. */
901 unsigned present:1; /* Whether this operand is present in the assembly
902 line; not used during the disassembly. */
905 typedef struct aarch64_opnd_info aarch64_opnd_info;
907 /* Structure representing an instruction.
909 It is used during both the assembling and disassembling. The assembler
910 fills an aarch64_inst after a successful parsing and then passes it to the
911 encoding routine to do the encoding. During the disassembling, the
912 disassembler calls the decoding routine to decode a binary instruction; on a
913 successful return, such a structure will be filled with information of the
914 instruction; then the disassembler uses the information to print out the
919 /* The value of the binary instruction. */
922 /* Corresponding opcode entry. */
923 const aarch64_opcode *opcode;
925 /* Condition for a truly conditional-executed instrutions, e.g. b.cond. */
926 const aarch64_cond *cond;
928 /* Operands information. */
929 aarch64_opnd_info operands[AARCH64_MAX_OPND_NUM];
932 typedef struct aarch64_inst aarch64_inst;
934 /* Diagnosis related declaration and interface. */
936 /* Operand error kind enumerators.
938 AARCH64_OPDE_RECOVERABLE
939 Less severe error found during the parsing, very possibly because that
940 GAS has picked up a wrong instruction template for the parsing.
942 AARCH64_OPDE_SYNTAX_ERROR
943 General syntax error; it can be either a user error, or simply because
944 that GAS is trying a wrong instruction template.
946 AARCH64_OPDE_FATAL_SYNTAX_ERROR
947 Definitely a user syntax error.
949 AARCH64_OPDE_INVALID_VARIANT
950 No syntax error, but the operands are not a valid combination, e.g.
953 AARCH64_OPDE_UNTIED_OPERAND
954 The asm failed to use the same register for a destination operand
955 and a tied source operand.
957 AARCH64_OPDE_OUT_OF_RANGE
958 Error about some immediate value out of a valid range.
960 AARCH64_OPDE_UNALIGNED
961 Error about some immediate value not properly aligned (i.e. not being a
962 multiple times of a certain value).
964 AARCH64_OPDE_REG_LIST
965 Error about the register list operand having unexpected number of
968 AARCH64_OPDE_OTHER_ERROR
969 Error of the highest severity and used for any severe issue that does not
970 fall into any of the above categories.
972 The enumerators are only interesting to GAS. They are declared here (in
973 libopcodes) because that some errors are detected (and then notified to GAS)
974 by libopcodes (rather than by GAS solely).
976 The first three errors are only deteced by GAS while the
977 AARCH64_OPDE_INVALID_VARIANT error can only be spotted by libopcodes as
978 only libopcodes has the information about the valid variants of each
981 The enumerators have an increasing severity. This is helpful when there are
982 multiple instruction templates available for a given mnemonic name (e.g.
983 FMOV); this mechanism will help choose the most suitable template from which
984 the generated diagnostics can most closely describe the issues, if any. */
986 enum aarch64_operand_error_kind
989 AARCH64_OPDE_RECOVERABLE,
990 AARCH64_OPDE_SYNTAX_ERROR,
991 AARCH64_OPDE_FATAL_SYNTAX_ERROR,
992 AARCH64_OPDE_INVALID_VARIANT,
993 AARCH64_OPDE_UNTIED_OPERAND,
994 AARCH64_OPDE_OUT_OF_RANGE,
995 AARCH64_OPDE_UNALIGNED,
996 AARCH64_OPDE_REG_LIST,
997 AARCH64_OPDE_OTHER_ERROR
1000 /* N.B. GAS assumes that this structure work well with shallow copy. */
1001 struct aarch64_operand_error
1003 enum aarch64_operand_error_kind kind;
1006 int data[3]; /* Some data for extra information. */
1009 typedef struct aarch64_operand_error aarch64_operand_error;
1011 /* Encoding entrypoint. */
1014 aarch64_opcode_encode (const aarch64_opcode *, const aarch64_inst *,
1015 aarch64_insn *, aarch64_opnd_qualifier_t *,
1016 aarch64_operand_error *);
1018 extern const aarch64_opcode *
1019 aarch64_replace_opcode (struct aarch64_inst *,
1020 const aarch64_opcode *);
1022 /* Given the opcode enumerator OP, return the pointer to the corresponding
1025 extern const aarch64_opcode *
1026 aarch64_get_opcode (enum aarch64_op);
1028 /* Generate the string representation of an operand. */
1030 aarch64_print_operand (char *, size_t, bfd_vma, const aarch64_opcode *,
1031 const aarch64_opnd_info *, int, int *, bfd_vma *);
1033 /* Miscellaneous interface. */
1036 aarch64_operand_index (const enum aarch64_opnd *, enum aarch64_opnd);
1038 extern aarch64_opnd_qualifier_t
1039 aarch64_get_expected_qualifier (const aarch64_opnd_qualifier_seq_t *, int,
1040 const aarch64_opnd_qualifier_t, int);
1043 aarch64_num_of_operands (const aarch64_opcode *);
1046 aarch64_stack_pointer_p (const aarch64_opnd_info *);
1049 aarch64_zero_register_p (const aarch64_opnd_info *);
1052 aarch64_decode_insn (aarch64_insn, aarch64_inst *, bfd_boolean);
1054 /* Given an operand qualifier, return the expected data element size
1055 of a qualified operand. */
1056 extern unsigned char
1057 aarch64_get_qualifier_esize (aarch64_opnd_qualifier_t);
1059 extern enum aarch64_operand_class
1060 aarch64_get_operand_class (enum aarch64_opnd);
1063 aarch64_get_operand_name (enum aarch64_opnd);
1066 aarch64_get_operand_desc (enum aarch64_opnd);
1068 #ifdef DEBUG_AARCH64
1069 extern int debug_dump;
1072 aarch64_verbose (const char *, ...) __attribute__ ((format (printf, 1, 2)));
1074 #define DEBUG_TRACE(M, ...) \
1077 aarch64_verbose ("%s: " M ".", __func__, ##__VA_ARGS__); \
1080 #define DEBUG_TRACE_IF(C, M, ...) \
1082 if (debug_dump && (C)) \
1083 aarch64_verbose ("%s: " M ".", __func__, ##__VA_ARGS__); \
1085 #else /* !DEBUG_AARCH64 */
1086 #define DEBUG_TRACE(M, ...) ;
1087 #define DEBUG_TRACE_IF(C, M, ...) ;
1088 #endif /* DEBUG_AARCH64 */
1090 extern const char *const aarch64_sve_pattern_array[32];
1091 extern const char *const aarch64_sve_prfop_array[16];
1097 #endif /* OPCODE_AARCH64_H */