1 /* riscv.h. RISC-V opcode list for GDB, the GNU debugger.
2 Copyright (C) 2011-2023 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_VI_UIMM6(x) \
104 (RV_X(x, 15, 5) | (RV_X(x, 26, 1) << 5))
105 #define EXTRACT_RVV_OFFSET(x) \
107 #define EXTRACT_RVV_VB_IMM(x) \
109 #define EXTRACT_RVV_VC_IMM(x) \
111 #define EXTRACT_ZCB_BYTE_UIMM(x) \
112 (RV_X(x, 6, 1) | (RV_X(x, 5, 1) << 1))
113 #define EXTRACT_ZCB_HALFWORD_UIMM(x) \
116 #define ENCODE_ITYPE_IMM(x) \
117 (RV_X(x, 0, 12) << 20)
118 #define ENCODE_STYPE_IMM(x) \
119 ((RV_X(x, 0, 5) << 7) | (RV_X(x, 5, 7) << 25))
120 #define ENCODE_BTYPE_IMM(x) \
121 ((RV_X(x, 1, 4) << 8) | (RV_X(x, 5, 6) << 25) | (RV_X(x, 11, 1) << 7) | (RV_X(x, 12, 1) << 31))
122 #define ENCODE_UTYPE_IMM(x) \
123 (RV_X(x, 12, 20) << 12)
124 #define ENCODE_JTYPE_IMM(x) \
125 ((RV_X(x, 1, 10) << 21) | (RV_X(x, 11, 1) << 20) | (RV_X(x, 12, 8) << 12) | (RV_X(x, 20, 1) << 31))
126 #define ENCODE_CITYPE_IMM(x) \
127 ((RV_X(x, 0, 5) << 2) | (RV_X(x, 5, 1) << 12))
128 #define ENCODE_CITYPE_LUI_IMM(x) \
129 ENCODE_CITYPE_IMM ((x) >> RISCV_IMM_BITS)
130 #define ENCODE_CITYPE_ADDI16SP_IMM(x) \
131 ((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))
132 #define ENCODE_CITYPE_LWSP_IMM(x) \
133 ((RV_X(x, 2, 3) << 4) | (RV_X(x, 5, 1) << 12) | (RV_X(x, 6, 2) << 2))
134 #define ENCODE_CITYPE_LDSP_IMM(x) \
135 ((RV_X(x, 3, 2) << 5) | (RV_X(x, 5, 1) << 12) | (RV_X(x, 6, 3) << 2))
136 #define ENCODE_CSSTYPE_IMM(x) \
138 #define ENCODE_CSSTYPE_SWSP_IMM(x) \
139 ((RV_X(x, 2, 4) << 9) | (RV_X(x, 6, 2) << 7))
140 #define ENCODE_CSSTYPE_SDSP_IMM(x) \
141 ((RV_X(x, 3, 3) << 10) | (RV_X(x, 6, 3) << 7))
142 #define ENCODE_CIWTYPE_IMM(x) \
144 #define ENCODE_CIWTYPE_ADDI4SPN_IMM(x) \
145 ((RV_X(x, 2, 1) << 6) | (RV_X(x, 3, 1) << 5) | (RV_X(x, 4, 2) << 11) | (RV_X(x, 6, 4) << 7))
146 #define ENCODE_CLTYPE_IMM(x) \
147 ((RV_X(x, 0, 2) << 5) | (RV_X(x, 2, 3) << 10))
148 #define ENCODE_CLTYPE_LW_IMM(x) \
149 ((RV_X(x, 2, 1) << 6) | (RV_X(x, 3, 3) << 10) | (RV_X(x, 6, 1) << 5))
150 #define ENCODE_CLTYPE_LD_IMM(x) \
151 ((RV_X(x, 3, 3) << 10) | (RV_X(x, 6, 2) << 5))
152 #define ENCODE_CBTYPE_IMM(x) \
153 ((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))
154 #define ENCODE_CJTYPE_IMM(x) \
155 ((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))
156 #define ENCODE_RVV_VB_IMM(x) \
157 (RV_X(x, 0, 10) << 20)
158 #define ENCODE_RVV_VC_IMM(x) \
159 (RV_X(x, 0, 11) << 20)
160 #define ENCODE_RVV_VI_UIMM6(x) \
161 (RV_X(x, 0, 5) << 15 | RV_X(x, 5, 1) << 26)
162 #define ENCODE_ZCB_BYTE_UIMM(x) \
163 ((RV_X(x, 0, 1) << 6) | (RV_X(x, 1, 1) << 5))
164 #define ENCODE_ZCB_HALFWORD_UIMM(x) \
167 #define VALID_ITYPE_IMM(x) (EXTRACT_ITYPE_IMM(ENCODE_ITYPE_IMM(x)) == (x))
168 #define VALID_STYPE_IMM(x) (EXTRACT_STYPE_IMM(ENCODE_STYPE_IMM(x)) == (x))
169 #define VALID_BTYPE_IMM(x) (EXTRACT_BTYPE_IMM(ENCODE_BTYPE_IMM(x)) == (x))
170 #define VALID_UTYPE_IMM(x) (EXTRACT_UTYPE_IMM(ENCODE_UTYPE_IMM(x)) == (x))
171 #define VALID_JTYPE_IMM(x) (EXTRACT_JTYPE_IMM(ENCODE_JTYPE_IMM(x)) == (x))
172 #define VALID_CITYPE_IMM(x) (EXTRACT_CITYPE_IMM(ENCODE_CITYPE_IMM(x)) == (x))
173 #define VALID_CITYPE_LUI_IMM(x) (ENCODE_CITYPE_LUI_IMM(x) != 0 \
174 && EXTRACT_CITYPE_LUI_IMM(ENCODE_CITYPE_LUI_IMM(x)) == (x))
175 #define VALID_CITYPE_ADDI16SP_IMM(x) (ENCODE_CITYPE_ADDI16SP_IMM(x) != 0 \
176 && EXTRACT_CITYPE_ADDI16SP_IMM(ENCODE_CITYPE_ADDI16SP_IMM(x)) == (x))
177 #define VALID_CITYPE_LWSP_IMM(x) (EXTRACT_CITYPE_LWSP_IMM(ENCODE_CITYPE_LWSP_IMM(x)) == (x))
178 #define VALID_CITYPE_LDSP_IMM(x) (EXTRACT_CITYPE_LDSP_IMM(ENCODE_CITYPE_LDSP_IMM(x)) == (x))
179 #define VALID_CSSTYPE_IMM(x) (EXTRACT_CSSTYPE_IMM(ENCODE_CSSTYPE_IMM(x)) == (x))
180 #define VALID_CSSTYPE_SWSP_IMM(x) (EXTRACT_CSSTYPE_SWSP_IMM(ENCODE_CSSTYPE_SWSP_IMM(x)) == (x))
181 #define VALID_CSSTYPE_SDSP_IMM(x) (EXTRACT_CSSTYPE_SDSP_IMM(ENCODE_CSSTYPE_SDSP_IMM(x)) == (x))
182 #define VALID_CIWTYPE_IMM(x) (EXTRACT_CIWTYPE_IMM(ENCODE_CIWTYPE_IMM(x)) == (x))
183 #define VALID_CIWTYPE_ADDI4SPN_IMM(x) (EXTRACT_CIWTYPE_ADDI4SPN_IMM(ENCODE_CIWTYPE_ADDI4SPN_IMM(x)) == (x))
184 #define VALID_CLTYPE_IMM(x) (EXTRACT_CLTYPE_IMM(ENCODE_CLTYPE_IMM(x)) == (x))
185 #define VALID_CLTYPE_LW_IMM(x) (EXTRACT_CLTYPE_LW_IMM(ENCODE_CLTYPE_LW_IMM(x)) == (x))
186 #define VALID_CLTYPE_LD_IMM(x) (EXTRACT_CLTYPE_LD_IMM(ENCODE_CLTYPE_LD_IMM(x)) == (x))
187 #define VALID_CBTYPE_IMM(x) (EXTRACT_CBTYPE_IMM(ENCODE_CBTYPE_IMM(x)) == (x))
188 #define VALID_CJTYPE_IMM(x) (EXTRACT_CJTYPE_IMM(ENCODE_CJTYPE_IMM(x)) == (x))
189 #define VALID_RVV_VB_IMM(x) (EXTRACT_RVV_VB_IMM(ENCODE_RVV_VB_IMM(x)) == (x))
190 #define VALID_RVV_VC_IMM(x) (EXTRACT_RVV_VC_IMM(ENCODE_RVV_VC_IMM(x)) == (x))
191 #define VALID_ZCB_BYTE_UIMM(x) (EXTRACT_ZCB_BYTE_UIMM(ENCODE_ZCB_BYTE_UIMM(x)) == (x))
192 #define VALID_ZCB_HALFWORD_UIMM(x) (EXTRACT_ZCB_HALFWORD_UIMM(ENCODE_ZCB_HALFWORD_UIMM(x)) == (x))
194 #define RISCV_RTYPE(insn, rd, rs1, rs2) \
195 ((MATCH_ ## insn) | ((rd) << OP_SH_RD) | ((rs1) << OP_SH_RS1) | ((rs2) << OP_SH_RS2))
196 #define RISCV_ITYPE(insn, rd, rs1, imm) \
197 ((MATCH_ ## insn) | ((rd) << OP_SH_RD) | ((rs1) << OP_SH_RS1) | ENCODE_ITYPE_IMM(imm))
198 #define RISCV_STYPE(insn, rs1, rs2, imm) \
199 ((MATCH_ ## insn) | ((rs1) << OP_SH_RS1) | ((rs2) << OP_SH_RS2) | ENCODE_STYPE_IMM(imm))
200 #define RISCV_BTYPE(insn, rs1, rs2, target) \
201 ((MATCH_ ## insn) | ((rs1) << OP_SH_RS1) | ((rs2) << OP_SH_RS2) | ENCODE_BTYPE_IMM(target))
202 #define RISCV_UTYPE(insn, rd, bigimm) \
203 ((MATCH_ ## insn) | ((rd) << OP_SH_RD) | ENCODE_UTYPE_IMM(bigimm))
204 #define RISCV_JTYPE(insn, rd, target) \
205 ((MATCH_ ## insn) | ((rd) << OP_SH_RD) | ENCODE_JTYPE_IMM(target))
207 #define RISCV_NOP RISCV_ITYPE(ADDI, 0, 0, 0)
208 #define RVC_NOP MATCH_C_ADDI
210 #define RISCV_CONST_HIGH_PART(VALUE) \
211 (((VALUE) + (RISCV_IMM_REACH/2)) & ~(RISCV_IMM_REACH-1))
212 #define RISCV_CONST_LOW_PART(VALUE) ((VALUE) - RISCV_CONST_HIGH_PART (VALUE))
213 #define RISCV_PCREL_HIGH_PART(VALUE, PC) RISCV_CONST_HIGH_PART((VALUE) - (PC))
214 #define RISCV_PCREL_LOW_PART(VALUE, PC) RISCV_CONST_LOW_PART((VALUE) - (PC))
216 #define RISCV_JUMP_BITS RISCV_BIGIMM_BITS
217 #define RISCV_JUMP_ALIGN_BITS 1
218 #define RISCV_JUMP_ALIGN (1 << RISCV_JUMP_ALIGN_BITS)
219 #define RISCV_JUMP_REACH ((1ULL << RISCV_JUMP_BITS) * RISCV_JUMP_ALIGN)
221 #define RISCV_IMM_BITS 12
222 #define RISCV_BIGIMM_BITS (32 - RISCV_IMM_BITS)
223 #define RISCV_IMM_REACH (1LL << RISCV_IMM_BITS)
224 #define RISCV_BIGIMM_REACH (1LL << RISCV_BIGIMM_BITS)
225 #define RISCV_RVC_IMM_REACH (1LL << 6)
226 #define RISCV_BRANCH_BITS RISCV_IMM_BITS
227 #define RISCV_BRANCH_ALIGN_BITS RISCV_JUMP_ALIGN_BITS
228 #define RISCV_BRANCH_ALIGN (1 << RISCV_BRANCH_ALIGN_BITS)
229 #define RISCV_BRANCH_REACH (RISCV_IMM_REACH * RISCV_BRANCH_ALIGN)
233 #define OP_MASK_OP 0x7f
235 #define OP_MASK_RS2 0x1f
237 #define OP_MASK_RS1 0x1f
239 #define OP_MASK_RS3 0x1fU
241 #define OP_MASK_RD 0x1f
243 #define OP_MASK_SHAMT 0x3f
244 #define OP_SH_SHAMT 20
245 #define OP_MASK_SHAMTW 0x1f
246 #define OP_SH_SHAMTW 20
247 #define OP_MASK_RM 0x7
249 #define OP_MASK_PRED 0xf
250 #define OP_SH_PRED 24
251 #define OP_MASK_SUCC 0xf
252 #define OP_SH_SUCC 20
253 #define OP_MASK_AQ 0x1
255 #define OP_MASK_RL 0x1
258 #define OP_MASK_CSR 0xfffU
261 #define OP_MASK_FUNCT3 0x7
262 #define OP_SH_FUNCT3 12
263 #define OP_MASK_FUNCT7 0x7fU
264 #define OP_SH_FUNCT7 25
265 #define OP_MASK_FUNCT2 0x3
266 #define OP_SH_FUNCT2 25
270 #define OP_MASK_OP2 0x3
273 #define OP_MASK_CRS2 0x1f
275 #define OP_MASK_CRS1S 0x7
276 #define OP_SH_CRS1S 7
277 #define OP_MASK_CRS2S 0x7
278 #define OP_SH_CRS2S 2
280 #define OP_MASK_CFUNCT6 0x3f
281 #define OP_SH_CFUNCT6 10
282 #define OP_MASK_CFUNCT4 0xf
283 #define OP_SH_CFUNCT4 12
284 #define OP_MASK_CFUNCT3 0x7
285 #define OP_SH_CFUNCT3 13
286 #define OP_MASK_CFUNCT2 0x3
287 #define OP_SH_CFUNCT2 5
289 /* Scalar crypto fields. */
293 #define OP_SH_RNUM 20
294 #define OP_MASK_RNUM 0xf
298 #define OP_MASK_VD 0x1f
300 #define OP_MASK_VS1 0x1f
302 #define OP_MASK_VS2 0x1f
304 #define OP_MASK_VIMM 0x1f
305 #define OP_SH_VIMM 15
306 #define OP_MASK_VMASK 0x1
307 #define OP_SH_VMASK 25
308 #define OP_MASK_VFUNCT6 0x3f
309 #define OP_SH_VFUNCT6 26
310 #define OP_MASK_VLMUL 0x7
311 #define OP_SH_VLMUL 0
312 #define OP_MASK_VSEW 0x7
314 #define OP_MASK_VTA 0x1
316 #define OP_MASK_VMA 0x1
318 #define OP_MASK_VWD 0x1
324 /* ABI names for selected x-registers. */
338 /* These fake label defines are use by both the assembler, and
339 libopcodes. The assembler uses this when it needs to generate a fake
340 label, and libopcodes uses it to hide the fake labels in its output. */
341 #define RISCV_FAKE_LABEL_NAME ".L0 "
342 #define RISCV_FAKE_LABEL_CHAR ' '
344 /* Replace bits MASK << SHIFT of STRUCT with the equivalent bits in
345 VALUE << SHIFT. VALUE is evaluated exactly once. */
346 #define INSERT_BITS(STRUCT, VALUE, MASK, SHIFT) \
347 (STRUCT) = (((STRUCT) & ~((insn_t)(MASK) << (SHIFT))) \
348 | ((insn_t)((VALUE) & (MASK)) << (SHIFT)))
350 /* Extract bits MASK << SHIFT from STRUCT and shift them right
352 #define EXTRACT_BITS(STRUCT, MASK, SHIFT) \
353 (((STRUCT) >> (SHIFT)) & (MASK))
355 /* Extract the operand given by FIELD from integer INSN. */
356 #define EXTRACT_OPERAND(FIELD, INSN) \
357 ((unsigned int) EXTRACT_BITS ((INSN), OP_MASK_##FIELD, OP_SH_##FIELD))
359 /* Extract an unsigned immediate operand on position s with n bits. */
360 #define EXTRACT_U_IMM(n, s, l) \
363 /* Extract an signed immediate operand on position s with n bits. */
364 #define EXTRACT_S_IMM(n, s, l) \
365 RV_X_SIGNED (l, s, n)
367 /* Validate that unsigned n-bit immediate is within bounds. */
368 #define VALIDATE_U_IMM(v, n) \
369 ((unsigned long) v < (1UL << n))
371 /* Validate that signed n-bit immediate is within bounds. */
372 #define VALIDATE_S_IMM(v, n) \
373 (v < (long) (1UL << (n-1)) && v >= -(offsetT) (1UL << (n-1)))
375 /* The maximal number of subset can be required. */
376 #define MAX_SUBSET_NUM 4
378 /* All RISC-V instructions belong to at least one of these classes. */
379 enum riscv_insn_class
395 INSN_CLASS_ZIHINTNTL
,
396 INSN_CLASS_ZIHINTNTL_AND_C
,
397 INSN_CLASS_ZIHINTPAUSE
,
405 INSN_CLASS_ZFHMIN_INX
,
406 INSN_CLASS_ZFHMIN_AND_D_INX
,
407 INSN_CLASS_ZFHMIN_AND_Q_INX
,
409 INSN_CLASS_D_AND_ZFA
,
410 INSN_CLASS_Q_AND_ZFA
,
411 INSN_CLASS_ZFH_AND_ZFA
,
412 INSN_CLASS_ZFH_OR_ZVFH_AND_ZFA
,
425 INSN_CLASS_ZBB_OR_ZBKB
,
426 INSN_CLASS_ZBC_OR_ZBKC
,
427 INSN_CLASS_ZKND_OR_ZKNE
,
434 INSN_CLASS_ZVKNHA_OR_ZVKNHB
,
438 INSN_CLASS_ZCB_AND_ZBA
,
439 INSN_CLASS_ZCB_AND_ZBB
,
440 INSN_CLASS_ZCB_AND_ZMMUL
,
449 INSN_CLASS_XTHEADCMO
,
450 INSN_CLASS_XTHEADCONDMOV
,
451 INSN_CLASS_XTHEADFMEMIDX
,
452 INSN_CLASS_XTHEADFMV
,
453 INSN_CLASS_XTHEADINT
,
454 INSN_CLASS_XTHEADMAC
,
455 INSN_CLASS_XTHEADMEMIDX
,
456 INSN_CLASS_XTHEADMEMPAIR
,
457 INSN_CLASS_XTHEADSYNC
,
458 INSN_CLASS_XVENTANACONDOPS
,
461 /* This structure holds information for a particular instruction. */
464 /* The name of the instruction. */
467 /* The requirement of xlen for the instruction, 0 if no requirement. */
468 unsigned xlen_requirement
;
470 /* Class to which this instruction belongs. Used to decide whether or
471 not this instruction is legal in the current -march context. */
472 enum riscv_insn_class insn_class
;
474 /* A string describing the arguments for this instruction. */
477 /* The basic opcode for the instruction. When assembling, this
478 opcode is modified by the arguments to produce the actual opcode
479 that is used. If pinfo is INSN_MACRO, then this is 0. */
482 /* If pinfo is not INSN_MACRO, then this is a bit mask for the
483 relevant portions of the opcode when disassembling. If the
484 actual opcode anded with the match field equals the opcode field,
485 then we have found the correct instruction. If pinfo is
486 INSN_MACRO, then this field is the macro identifier. */
489 /* A function to determine if a word corresponds to this instruction.
490 Usually, this computes ((word & mask) == match). */
491 int (*match_func
) (const struct riscv_opcode
*op
, insn_t word
);
493 /* For a macro, this is INSN_MACRO. Otherwise, it is a collection
494 of bits describing the instruction, notably any relevant hazard
499 /* Instruction is a simple alias (e.g. "mv" for "addi"). */
500 #define INSN_ALIAS 0x00000001
502 /* These are for setting insn_info fields.
504 Nonbranch is the default. Noninsn is used only if there is no match.
505 There are no condjsr or dref2 instructions. So that leaves condbranch,
506 branch, jsr, and dref that we need to handle here, encoded in 3 bits. */
507 #define INSN_TYPE 0x0000000e
509 /* Instruction is an unconditional branch. */
510 #define INSN_BRANCH 0x00000002
511 /* Instruction is a conditional branch. */
512 #define INSN_CONDBRANCH 0x00000004
513 /* Instruction is a jump to subroutine. */
514 #define INSN_JSR 0x00000006
515 /* Instruction is a data reference. */
516 #define INSN_DREF 0x00000008
517 /* Instruction is allowed when eew >= 64. */
518 #define INSN_V_EEW64 0x10000000
520 /* We have 5 data reference sizes, which we can encode in 3 bits. */
521 #define INSN_DATA_SIZE 0x00000070
522 #define INSN_DATA_SIZE_SHIFT 4
523 #define INSN_1_BYTE 0x00000010
524 #define INSN_2_BYTE 0x00000020
525 #define INSN_4_BYTE 0x00000030
526 #define INSN_8_BYTE 0x00000040
527 #define INSN_16_BYTE 0x00000050
529 /* Instruction is actually a macro. It should be ignored by the
530 disassembler, and requires special treatment by the assembler. */
531 #define INSN_MACRO 0xffffffff
533 /* This is a list of macro expanded instructions. */
571 /* The mapping symbol states. */
572 enum riscv_seg_mstate
574 MAP_NONE
= 0, /* Must be zero, for seginfo in new sections. */
575 MAP_DATA
, /* Data. */
576 MAP_INSN
, /* Instructions. */
579 #define NRC (4 + 1) /* Max characters in register names, incl nul. */
581 extern const char riscv_gpr_names_numeric
[NGPR
][NRC
];
582 extern const char riscv_gpr_names_abi
[NGPR
][NRC
];
583 extern const char riscv_fpr_names_numeric
[NFPR
][NRC
];
584 extern const char riscv_fpr_names_abi
[NFPR
][NRC
];
585 extern const char * const riscv_rm
[8];
586 extern const char * const riscv_pred_succ
[16];
587 extern const char riscv_vecr_names_numeric
[NVECR
][NRC
];
588 extern const char riscv_vecm_names_numeric
[NVECM
][NRC
];
589 extern const char * const riscv_vsew
[8];
590 extern const char * const riscv_vlmul
[8];
591 extern const char * const riscv_vta
[2];
592 extern const char * const riscv_vma
[2];
593 extern const char * const riscv_fli_symval
[32];
594 extern const float riscv_fli_numval
[32];
596 extern const struct riscv_opcode riscv_opcodes
[];
597 extern const struct riscv_opcode riscv_insn_types
[];
599 #endif /* _RISCV_H_ */