1 /* riscv.h. RISC-V opcode list for GDB, the GNU debugger.
2 Copyright (C) 2011-2022 Free Software Foundation, Inc.
3 Contributed by Andrew Waterman
5 This file is part of GDB, GAS, and the GNU binutils.
7 GDB, GAS, and the GNU binutils are free software; you can redistribute
8 them and/or modify them under the terms of the GNU General Public
9 License as published by the Free Software Foundation; either version
10 3, or (at your option) any later version.
12 GDB, GAS, and the GNU binutils are distributed in the hope that they
13 will be useful, but WITHOUT ANY WARRANTY; without even the implied
14 warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
15 the GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; see the file COPYING3. If not,
19 see <http://www.gnu.org/licenses/>. */
24 #include "riscv-opc.h"
28 typedef uint64_t insn_t;
30 static inline unsigned int riscv_insn_length (insn_t insn)
32 if ((insn & 0x3) != 0x3) /* RVC instructions. */
34 if ((insn & 0x1f) != 0x1f) /* 32-bit instructions. */
36 if ((insn & 0x3f) == 0x1f) /* 48-bit instructions. */
38 if ((insn & 0x7f) == 0x3f) /* 64-bit instructions. */
40 /* 80- ... 176-bit instructions. */
41 if ((insn & 0x7f) == 0x7f && (insn & 0x7000) != 0x7000)
42 return 10 + ((insn >> 11) & 0xe);
43 /* Maximum value returned by this function. */
44 #define RISCV_MAX_INSN_LEN 22
45 /* Longer instructions not supported at the moment. */
49 #define RVC_JUMP_BITS 11
50 #define RVC_JUMP_REACH ((1ULL << RVC_JUMP_BITS) * RISCV_JUMP_ALIGN)
52 #define RVC_BRANCH_BITS 8
53 #define RVC_BRANCH_REACH ((1ULL << RVC_BRANCH_BITS) * RISCV_BRANCH_ALIGN)
55 #define RV_X(x, s, n) (((x) >> (s)) & ((1 << (n)) - 1))
56 #define RV_IMM_SIGN(x) (-(((x) >> 31) & 1))
57 #define RV_X_SIGNED(x, s, n) (RV_X(x, s, n) | ((-(RV_X(x, (s + n - 1), 1))) << (n)))
59 #define EXTRACT_ITYPE_IMM(x) \
60 (RV_X(x, 20, 12) | (RV_IMM_SIGN(x) << 12))
61 #define EXTRACT_STYPE_IMM(x) \
62 (RV_X(x, 7, 5) | (RV_X(x, 25, 7) << 5) | (RV_IMM_SIGN(x) << 12))
63 #define EXTRACT_BTYPE_IMM(x) \
64 ((RV_X(x, 8, 4) << 1) | (RV_X(x, 25, 6) << 5) | (RV_X(x, 7, 1) << 11) | (RV_IMM_SIGN(x) << 12))
65 #define EXTRACT_UTYPE_IMM(x) \
66 ((RV_X(x, 12, 20) << 12) | (RV_IMM_SIGN(x) << 32))
67 #define EXTRACT_JTYPE_IMM(x) \
68 ((RV_X(x, 21, 10) << 1) | (RV_X(x, 20, 1) << 11) | (RV_X(x, 12, 8) << 12) | (RV_IMM_SIGN(x) << 20))
69 #define EXTRACT_CITYPE_IMM(x) \
70 (RV_X(x, 2, 5) | (-RV_X(x, 12, 1) << 5))
71 #define EXTRACT_CITYPE_LUI_IMM(x) \
72 (EXTRACT_CITYPE_IMM (x) << RISCV_IMM_BITS)
73 #define EXTRACT_CITYPE_ADDI16SP_IMM(x) \
74 ((RV_X(x, 6, 1) << 4) | (RV_X(x, 2, 1) << 5) | (RV_X(x, 5, 1) << 6) | (RV_X(x, 3, 2) << 7) | (-RV_X(x, 12, 1) << 9))
75 #define EXTRACT_CITYPE_LWSP_IMM(x) \
76 ((RV_X(x, 4, 3) << 2) | (RV_X(x, 12, 1) << 5) | (RV_X(x, 2, 2) << 6))
77 #define EXTRACT_CITYPE_LDSP_IMM(x) \
78 ((RV_X(x, 5, 2) << 3) | (RV_X(x, 12, 1) << 5) | (RV_X(x, 2, 3) << 6))
79 #define EXTRACT_CSSTYPE_IMM(x) \
81 #define EXTRACT_CSSTYPE_SWSP_IMM(x) \
82 ((RV_X(x, 9, 4) << 2) | (RV_X(x, 7, 2) << 6))
83 #define EXTRACT_CSSTYPE_SDSP_IMM(x) \
84 ((RV_X(x, 10, 3) << 3) | (RV_X(x, 7, 3) << 6))
85 #define EXTRACT_CIWTYPE_IMM(x) \
87 #define EXTRACT_CIWTYPE_ADDI4SPN_IMM(x) \
88 ((RV_X(x, 6, 1) << 2) | (RV_X(x, 5, 1) << 3) | (RV_X(x, 11, 2) << 4) | (RV_X(x, 7, 4) << 6))
89 #define EXTRACT_CLTYPE_IMM(x) \
90 ((RV_X(x, 5, 2) << 0) | (RV_X(x, 10, 3) << 2))
91 #define EXTRACT_CLTYPE_LW_IMM(x) \
92 ((RV_X(x, 6, 1) << 2) | (RV_X(x, 10, 3) << 3) | (RV_X(x, 5, 1) << 6))
93 #define EXTRACT_CLTYPE_LD_IMM(x) \
94 ((RV_X(x, 10, 3) << 3) | (RV_X(x, 5, 2) << 6))
95 #define EXTRACT_CBTYPE_IMM(x) \
96 ((RV_X(x, 3, 2) << 1) | (RV_X(x, 10, 2) << 3) | (RV_X(x, 2, 1) << 5) | (RV_X(x, 5, 2) << 6) | (-RV_X(x, 12, 1) << 8))
97 #define EXTRACT_CJTYPE_IMM(x) \
98 ((RV_X(x, 3, 3) << 1) | (RV_X(x, 11, 1) << 4) | (RV_X(x, 2, 1) << 5) | (RV_X(x, 7, 1) << 6) | (RV_X(x, 6, 1) << 7) | (RV_X(x, 9, 2) << 8) | (RV_X(x, 8, 1) << 10) | (-RV_X(x, 12, 1) << 11))
99 #define EXTRACT_RVV_VI_IMM(x) \
100 (RV_X(x, 15, 5) | (-RV_X(x, 19, 1) << 5))
101 #define EXTRACT_RVV_VI_UIMM(x) \
103 #define EXTRACT_RVV_OFFSET(x) \
105 #define EXTRACT_RVV_VB_IMM(x) \
107 #define EXTRACT_RVV_VC_IMM(x) \
110 #define ENCODE_ITYPE_IMM(x) \
111 (RV_X(x, 0, 12) << 20)
112 #define ENCODE_STYPE_IMM(x) \
113 ((RV_X(x, 0, 5) << 7) | (RV_X(x, 5, 7) << 25))
114 #define ENCODE_BTYPE_IMM(x) \
115 ((RV_X(x, 1, 4) << 8) | (RV_X(x, 5, 6) << 25) | (RV_X(x, 11, 1) << 7) | (RV_X(x, 12, 1) << 31))
116 #define ENCODE_UTYPE_IMM(x) \
117 (RV_X(x, 12, 20) << 12)
118 #define ENCODE_JTYPE_IMM(x) \
119 ((RV_X(x, 1, 10) << 21) | (RV_X(x, 11, 1) << 20) | (RV_X(x, 12, 8) << 12) | (RV_X(x, 20, 1) << 31))
120 #define ENCODE_CITYPE_IMM(x) \
121 ((RV_X(x, 0, 5) << 2) | (RV_X(x, 5, 1) << 12))
122 #define ENCODE_CITYPE_LUI_IMM(x) \
123 ENCODE_CITYPE_IMM ((x) >> RISCV_IMM_BITS)
124 #define ENCODE_CITYPE_ADDI16SP_IMM(x) \
125 ((RV_X(x, 4, 1) << 6) | (RV_X(x, 5, 1) << 2) | (RV_X(x, 6, 1) << 5) | (RV_X(x, 7, 2) << 3) | (RV_X(x, 9, 1) << 12))
126 #define ENCODE_CITYPE_LWSP_IMM(x) \
127 ((RV_X(x, 2, 3) << 4) | (RV_X(x, 5, 1) << 12) | (RV_X(x, 6, 2) << 2))
128 #define ENCODE_CITYPE_LDSP_IMM(x) \
129 ((RV_X(x, 3, 2) << 5) | (RV_X(x, 5, 1) << 12) | (RV_X(x, 6, 3) << 2))
130 #define ENCODE_CSSTYPE_IMM(x) \
132 #define ENCODE_CSSTYPE_SWSP_IMM(x) \
133 ((RV_X(x, 2, 4) << 9) | (RV_X(x, 6, 2) << 7))
134 #define ENCODE_CSSTYPE_SDSP_IMM(x) \
135 ((RV_X(x, 3, 3) << 10) | (RV_X(x, 6, 3) << 7))
136 #define ENCODE_CIWTYPE_IMM(x) \
138 #define ENCODE_CIWTYPE_ADDI4SPN_IMM(x) \
139 ((RV_X(x, 2, 1) << 6) | (RV_X(x, 3, 1) << 5) | (RV_X(x, 4, 2) << 11) | (RV_X(x, 6, 4) << 7))
140 #define ENCODE_CLTYPE_IMM(x) \
141 ((RV_X(x, 0, 2) << 5) | (RV_X(x, 2, 3) << 10))
142 #define ENCODE_CLTYPE_LW_IMM(x) \
143 ((RV_X(x, 2, 1) << 6) | (RV_X(x, 3, 3) << 10) | (RV_X(x, 6, 1) << 5))
144 #define ENCODE_CLTYPE_LD_IMM(x) \
145 ((RV_X(x, 3, 3) << 10) | (RV_X(x, 6, 2) << 5))
146 #define ENCODE_CBTYPE_IMM(x) \
147 ((RV_X(x, 1, 2) << 3) | (RV_X(x, 3, 2) << 10) | (RV_X(x, 5, 1) << 2) | (RV_X(x, 6, 2) << 5) | (RV_X(x, 8, 1) << 12))
148 #define ENCODE_CJTYPE_IMM(x) \
149 ((RV_X(x, 1, 3) << 3) | (RV_X(x, 4, 1) << 11) | (RV_X(x, 5, 1) << 2) | (RV_X(x, 6, 1) << 7) | (RV_X(x, 7, 1) << 6) | (RV_X(x, 8, 2) << 9) | (RV_X(x, 10, 1) << 8) | (RV_X(x, 11, 1) << 12))
150 #define ENCODE_RVV_VB_IMM(x) \
151 (RV_X(x, 0, 10) << 20)
152 #define ENCODE_RVV_VC_IMM(x) \
153 (RV_X(x, 0, 11) << 20)
155 #define VALID_ITYPE_IMM(x) (EXTRACT_ITYPE_IMM(ENCODE_ITYPE_IMM(x)) == (x))
156 #define VALID_STYPE_IMM(x) (EXTRACT_STYPE_IMM(ENCODE_STYPE_IMM(x)) == (x))
157 #define VALID_BTYPE_IMM(x) (EXTRACT_BTYPE_IMM(ENCODE_BTYPE_IMM(x)) == (x))
158 #define VALID_UTYPE_IMM(x) (EXTRACT_UTYPE_IMM(ENCODE_UTYPE_IMM(x)) == (x))
159 #define VALID_JTYPE_IMM(x) (EXTRACT_JTYPE_IMM(ENCODE_JTYPE_IMM(x)) == (x))
160 #define VALID_CITYPE_IMM(x) (EXTRACT_CITYPE_IMM(ENCODE_CITYPE_IMM(x)) == (x))
161 #define VALID_CITYPE_LUI_IMM(x) (ENCODE_CITYPE_LUI_IMM(x) != 0 \
162 && EXTRACT_CITYPE_LUI_IMM(ENCODE_CITYPE_LUI_IMM(x)) == (x))
163 #define VALID_CITYPE_ADDI16SP_IMM(x) (ENCODE_CITYPE_ADDI16SP_IMM(x) != 0 \
164 && EXTRACT_CITYPE_ADDI16SP_IMM(ENCODE_CITYPE_ADDI16SP_IMM(x)) == (x))
165 #define VALID_CITYPE_LWSP_IMM(x) (EXTRACT_CITYPE_LWSP_IMM(ENCODE_CITYPE_LWSP_IMM(x)) == (x))
166 #define VALID_CITYPE_LDSP_IMM(x) (EXTRACT_CITYPE_LDSP_IMM(ENCODE_CITYPE_LDSP_IMM(x)) == (x))
167 #define VALID_CSSTYPE_IMM(x) (EXTRACT_CSSTYPE_IMM(ENCODE_CSSTYPE_IMM(x)) == (x))
168 #define VALID_CSSTYPE_SWSP_IMM(x) (EXTRACT_CSSTYPE_SWSP_IMM(ENCODE_CSSTYPE_SWSP_IMM(x)) == (x))
169 #define VALID_CSSTYPE_SDSP_IMM(x) (EXTRACT_CSSTYPE_SDSP_IMM(ENCODE_CSSTYPE_SDSP_IMM(x)) == (x))
170 #define VALID_CIWTYPE_IMM(x) (EXTRACT_CIWTYPE_IMM(ENCODE_CIWTYPE_IMM(x)) == (x))
171 #define VALID_CIWTYPE_ADDI4SPN_IMM(x) (EXTRACT_CIWTYPE_ADDI4SPN_IMM(ENCODE_CIWTYPE_ADDI4SPN_IMM(x)) == (x))
172 #define VALID_CLTYPE_IMM(x) (EXTRACT_CLTYPE_IMM(ENCODE_CLTYPE_IMM(x)) == (x))
173 #define VALID_CLTYPE_LW_IMM(x) (EXTRACT_CLTYPE_LW_IMM(ENCODE_CLTYPE_LW_IMM(x)) == (x))
174 #define VALID_CLTYPE_LD_IMM(x) (EXTRACT_CLTYPE_LD_IMM(ENCODE_CLTYPE_LD_IMM(x)) == (x))
175 #define VALID_CBTYPE_IMM(x) (EXTRACT_CBTYPE_IMM(ENCODE_CBTYPE_IMM(x)) == (x))
176 #define VALID_CJTYPE_IMM(x) (EXTRACT_CJTYPE_IMM(ENCODE_CJTYPE_IMM(x)) == (x))
177 #define VALID_RVV_VB_IMM(x) (EXTRACT_RVV_VB_IMM(ENCODE_RVV_VB_IMM(x)) == (x))
178 #define VALID_RVV_VC_IMM(x) (EXTRACT_RVV_VC_IMM(ENCODE_RVV_VC_IMM(x)) == (x))
180 #define RISCV_RTYPE(insn, rd, rs1, rs2) \
181 ((MATCH_ ## insn) | ((rd) << OP_SH_RD) | ((rs1) << OP_SH_RS1) | ((rs2) << OP_SH_RS2))
182 #define RISCV_ITYPE(insn, rd, rs1, imm) \
183 ((MATCH_ ## insn) | ((rd) << OP_SH_RD) | ((rs1) << OP_SH_RS1) | ENCODE_ITYPE_IMM(imm))
184 #define RISCV_STYPE(insn, rs1, rs2, imm) \
185 ((MATCH_ ## insn) | ((rs1) << OP_SH_RS1) | ((rs2) << OP_SH_RS2) | ENCODE_STYPE_IMM(imm))
186 #define RISCV_BTYPE(insn, rs1, rs2, target) \
187 ((MATCH_ ## insn) | ((rs1) << OP_SH_RS1) | ((rs2) << OP_SH_RS2) | ENCODE_BTYPE_IMM(target))
188 #define RISCV_UTYPE(insn, rd, bigimm) \
189 ((MATCH_ ## insn) | ((rd) << OP_SH_RD) | ENCODE_UTYPE_IMM(bigimm))
190 #define RISCV_JTYPE(insn, rd, target) \
191 ((MATCH_ ## insn) | ((rd) << OP_SH_RD) | ENCODE_JTYPE_IMM(target))
193 #define RISCV_NOP RISCV_ITYPE(ADDI, 0, 0, 0)
194 #define RVC_NOP MATCH_C_ADDI
196 #define RISCV_CONST_HIGH_PART(VALUE) \
197 (((VALUE) + (RISCV_IMM_REACH/2)) & ~(RISCV_IMM_REACH-1))
198 #define RISCV_CONST_LOW_PART(VALUE) ((VALUE) - RISCV_CONST_HIGH_PART (VALUE))
199 #define RISCV_PCREL_HIGH_PART(VALUE, PC) RISCV_CONST_HIGH_PART((VALUE) - (PC))
200 #define RISCV_PCREL_LOW_PART(VALUE, PC) RISCV_CONST_LOW_PART((VALUE) - (PC))
202 #define RISCV_JUMP_BITS RISCV_BIGIMM_BITS
203 #define RISCV_JUMP_ALIGN_BITS 1
204 #define RISCV_JUMP_ALIGN (1 << RISCV_JUMP_ALIGN_BITS)
205 #define RISCV_JUMP_REACH ((1ULL << RISCV_JUMP_BITS) * RISCV_JUMP_ALIGN)
207 #define RISCV_IMM_BITS 12
208 #define RISCV_BIGIMM_BITS (32 - RISCV_IMM_BITS)
209 #define RISCV_IMM_REACH (1LL << RISCV_IMM_BITS)
210 #define RISCV_BIGIMM_REACH (1LL << RISCV_BIGIMM_BITS)
211 #define RISCV_RVC_IMM_REACH (1LL << 6)
212 #define RISCV_BRANCH_BITS RISCV_IMM_BITS
213 #define RISCV_BRANCH_ALIGN_BITS RISCV_JUMP_ALIGN_BITS
214 #define RISCV_BRANCH_ALIGN (1 << RISCV_BRANCH_ALIGN_BITS)
215 #define RISCV_BRANCH_REACH (RISCV_IMM_REACH * RISCV_BRANCH_ALIGN)
219 #define OP_MASK_OP 0x7f
221 #define OP_MASK_RS2 0x1f
223 #define OP_MASK_RS1 0x1f
225 #define OP_MASK_RS3 0x1fU
227 #define OP_MASK_RD 0x1f
229 #define OP_MASK_SHAMT 0x3f
230 #define OP_SH_SHAMT 20
231 #define OP_MASK_SHAMTW 0x1f
232 #define OP_SH_SHAMTW 20
233 #define OP_MASK_RM 0x7
235 #define OP_MASK_PRED 0xf
236 #define OP_SH_PRED 24
237 #define OP_MASK_SUCC 0xf
238 #define OP_SH_SUCC 20
239 #define OP_MASK_AQ 0x1
241 #define OP_MASK_RL 0x1
244 #define OP_MASK_CSR 0xfffU
247 #define OP_MASK_FUNCT3 0x7
248 #define OP_SH_FUNCT3 12
249 #define OP_MASK_FUNCT7 0x7fU
250 #define OP_SH_FUNCT7 25
251 #define OP_MASK_FUNCT2 0x3
252 #define OP_SH_FUNCT2 25
256 #define OP_MASK_OP2 0x3
259 #define OP_MASK_CRS2 0x1f
261 #define OP_MASK_CRS1S 0x7
262 #define OP_SH_CRS1S 7
263 #define OP_MASK_CRS2S 0x7
264 #define OP_SH_CRS2S 2
266 #define OP_MASK_CFUNCT6 0x3f
267 #define OP_SH_CFUNCT6 10
268 #define OP_MASK_CFUNCT4 0xf
269 #define OP_SH_CFUNCT4 12
270 #define OP_MASK_CFUNCT3 0x7
271 #define OP_SH_CFUNCT3 13
272 #define OP_MASK_CFUNCT2 0x3
273 #define OP_SH_CFUNCT2 5
275 /* Scalar crypto fields. */
279 #define OP_SH_RNUM 20
280 #define OP_MASK_RNUM 0xf
284 #define OP_MASK_VD 0x1f
286 #define OP_MASK_VS1 0x1f
288 #define OP_MASK_VS2 0x1f
290 #define OP_MASK_VIMM 0x1f
291 #define OP_SH_VIMM 15
292 #define OP_MASK_VMASK 0x1
293 #define OP_SH_VMASK 25
294 #define OP_MASK_VFUNCT6 0x3f
295 #define OP_SH_VFUNCT6 26
296 #define OP_MASK_VLMUL 0x7
297 #define OP_SH_VLMUL 0
298 #define OP_MASK_VSEW 0x7
300 #define OP_MASK_VTA 0x1
302 #define OP_MASK_VMA 0x1
304 #define OP_MASK_VWD 0x1
310 /* ABI names for selected x-registers. */
324 /* These fake label defines are use by both the assembler, and
325 libopcodes. The assembler uses this when it needs to generate a fake
326 label, and libopcodes uses it to hide the fake labels in its output. */
327 #define RISCV_FAKE_LABEL_NAME ".L0 "
328 #define RISCV_FAKE_LABEL_CHAR ' '
330 /* Replace bits MASK << SHIFT of STRUCT with the equivalent bits in
331 VALUE << SHIFT. VALUE is evaluated exactly once. */
332 #define INSERT_BITS(STRUCT, VALUE, MASK, SHIFT) \
333 (STRUCT) = (((STRUCT) & ~((insn_t)(MASK) << (SHIFT))) \
334 | ((insn_t)((VALUE) & (MASK)) << (SHIFT)))
336 /* Extract bits MASK << SHIFT from STRUCT and shift them right
338 #define EXTRACT_BITS(STRUCT, MASK, SHIFT) \
339 (((STRUCT) >> (SHIFT)) & (MASK))
341 /* Extract the operand given by FIELD from integer INSN. */
342 #define EXTRACT_OPERAND(FIELD, INSN) \
343 EXTRACT_BITS ((INSN), OP_MASK_##FIELD, OP_SH_##FIELD)
345 /* Extract an unsigned immediate operand on position s with n bits. */
346 #define EXTRACT_U_IMM(n, s, l) \
349 /* Extract an signed immediate operand on position s with n bits. */
350 #define EXTRACT_S_IMM(n, s, l) \
351 RV_X_SIGNED (l, s, n)
353 /* Validate that unsigned n-bit immediate is within bounds. */
354 #define VALIDATE_U_IMM(v, n) \
355 ((unsigned long) v < (1UL << n))
357 /* Validate that signed n-bit immediate is within bounds. */
358 #define VALIDATE_S_IMM(v, n) \
359 (v < (long) (1UL << (n-1)) && v >= -(offsetT) (1UL << (n-1)))
361 /* The maximal number of subset can be required. */
362 #define MAX_SUBSET_NUM 4
364 /* All RISC-V instructions belong to at least one of these classes. */
365 enum riscv_insn_class
380 INSN_CLASS_ZIHINTPAUSE,
388 INSN_CLASS_ZFHMIN_INX,
389 INSN_CLASS_ZFHMIN_AND_D_INX,
390 INSN_CLASS_ZFHMIN_AND_Q_INX,
403 INSN_CLASS_ZBB_OR_ZBKB,
404 INSN_CLASS_ZBC_OR_ZBKC,
405 INSN_CLASS_ZKND_OR_ZKNE,
416 INSN_CLASS_XTHEADCMO,
417 INSN_CLASS_XTHEADCONDMOV,
418 INSN_CLASS_XTHEADFMEMIDX,
419 INSN_CLASS_XTHEADFMV,
420 INSN_CLASS_XTHEADINT,
421 INSN_CLASS_XTHEADMAC,
422 INSN_CLASS_XTHEADMEMIDX,
423 INSN_CLASS_XTHEADMEMPAIR,
424 INSN_CLASS_XTHEADSYNC,
427 /* This structure holds information for a particular instruction. */
430 /* The name of the instruction. */
433 /* The requirement of xlen for the instruction, 0 if no requirement. */
434 unsigned xlen_requirement;
436 /* Class to which this instruction belongs. Used to decide whether or
437 not this instruction is legal in the current -march context. */
438 enum riscv_insn_class insn_class;
440 /* A string describing the arguments for this instruction. */
443 /* The basic opcode for the instruction. When assembling, this
444 opcode is modified by the arguments to produce the actual opcode
445 that is used. If pinfo is INSN_MACRO, then this is 0. */
448 /* If pinfo is not INSN_MACRO, then this is a bit mask for the
449 relevant portions of the opcode when disassembling. If the
450 actual opcode anded with the match field equals the opcode field,
451 then we have found the correct instruction. If pinfo is
452 INSN_MACRO, then this field is the macro identifier. */
455 /* A function to determine if a word corresponds to this instruction.
456 Usually, this computes ((word & mask) == match). */
457 int (*match_func) (const struct riscv_opcode *op, insn_t word);
459 /* For a macro, this is INSN_MACRO. Otherwise, it is a collection
460 of bits describing the instruction, notably any relevant hazard
465 /* Instruction is a simple alias (e.g. "mv" for "addi"). */
466 #define INSN_ALIAS 0x00000001
468 /* These are for setting insn_info fields.
470 Nonbranch is the default. Noninsn is used only if there is no match.
471 There are no condjsr or dref2 instructions. So that leaves condbranch,
472 branch, jsr, and dref that we need to handle here, encoded in 3 bits. */
473 #define INSN_TYPE 0x0000000e
475 /* Instruction is an unconditional branch. */
476 #define INSN_BRANCH 0x00000002
477 /* Instruction is a conditional branch. */
478 #define INSN_CONDBRANCH 0x00000004
479 /* Instruction is a jump to subroutine. */
480 #define INSN_JSR 0x00000006
481 /* Instruction is a data reference. */
482 #define INSN_DREF 0x00000008
483 /* Instruction is allowed when eew >= 64. */
484 #define INSN_V_EEW64 0x10000000
486 /* We have 5 data reference sizes, which we can encode in 3 bits. */
487 #define INSN_DATA_SIZE 0x00000070
488 #define INSN_DATA_SIZE_SHIFT 4
489 #define INSN_1_BYTE 0x00000010
490 #define INSN_2_BYTE 0x00000020
491 #define INSN_4_BYTE 0x00000030
492 #define INSN_8_BYTE 0x00000040
493 #define INSN_16_BYTE 0x00000050
495 /* Instruction is actually a macro. It should be ignored by the
496 disassembler, and requires special treatment by the assembler. */
497 #define INSN_MACRO 0xffffffff
499 /* This is a list of macro expanded instructions. */
537 /* The mapping symbol states. */
538 enum riscv_seg_mstate
540 MAP_NONE = 0, /* Must be zero, for seginfo in new sections. */
541 MAP_DATA, /* Data. */
542 MAP_INSN, /* Instructions. */
545 extern const char * const riscv_gpr_names_numeric[NGPR];
546 extern const char * const riscv_gpr_names_abi[NGPR];
547 extern const char * const riscv_fpr_names_numeric[NFPR];
548 extern const char * const riscv_fpr_names_abi[NFPR];
549 extern const char * const riscv_rm[8];
550 extern const char * const riscv_pred_succ[16];
551 extern const char * const riscv_vecr_names_numeric[NVECR];
552 extern const char * const riscv_vecm_names_numeric[NVECM];
553 extern const char * const riscv_vsew[8];
554 extern const char * const riscv_vlmul[8];
555 extern const char * const riscv_vta[2];
556 extern const char * const riscv_vma[2];
558 extern const struct riscv_opcode riscv_opcodes[];
559 extern const struct riscv_opcode riscv_insn_types[];
561 #endif /* _RISCV_H_ */