xref: /openbmc/qemu/disas/riscv.c (revision 10df8ff1)
1 /*
2  * QEMU RISC-V Disassembler
3  *
4  * Copyright (c) 2016-2017 Michael Clark <michaeljclark@mac.com>
5  * Copyright (c) 2017-2018 SiFive, Inc.
6  *
7  * This program is free software; you can redistribute it and/or modify it
8  * under the terms and conditions of the GNU General Public License,
9  * version 2 or later, as published by the Free Software Foundation.
10  *
11  * This program is distributed in the hope it will be useful, but WITHOUT
12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
14  * more details.
15  *
16  * You should have received a copy of the GNU General Public License along with
17  * this program.  If not, see <http://www.gnu.org/licenses/>.
18  */
19 
20 #include "qemu/osdep.h"
21 #include "disas/bfd.h"
22 
23 
24 /* types */
25 
26 typedef uint64_t rv_inst;
27 typedef uint16_t rv_opcode;
28 
29 /* enums */
30 
31 typedef enum {
32     rv32,
33     rv64,
34     rv128
35 } rv_isa;
36 
37 typedef enum {
38     rv_rm_rne = 0,
39     rv_rm_rtz = 1,
40     rv_rm_rdn = 2,
41     rv_rm_rup = 3,
42     rv_rm_rmm = 4,
43     rv_rm_dyn = 7,
44 } rv_rm;
45 
46 typedef enum {
47     rv_fence_i = 8,
48     rv_fence_o = 4,
49     rv_fence_r = 2,
50     rv_fence_w = 1,
51 } rv_fence;
52 
53 typedef enum {
54     rv_ireg_zero,
55     rv_ireg_ra,
56     rv_ireg_sp,
57     rv_ireg_gp,
58     rv_ireg_tp,
59     rv_ireg_t0,
60     rv_ireg_t1,
61     rv_ireg_t2,
62     rv_ireg_s0,
63     rv_ireg_s1,
64     rv_ireg_a0,
65     rv_ireg_a1,
66     rv_ireg_a2,
67     rv_ireg_a3,
68     rv_ireg_a4,
69     rv_ireg_a5,
70     rv_ireg_a6,
71     rv_ireg_a7,
72     rv_ireg_s2,
73     rv_ireg_s3,
74     rv_ireg_s4,
75     rv_ireg_s5,
76     rv_ireg_s6,
77     rv_ireg_s7,
78     rv_ireg_s8,
79     rv_ireg_s9,
80     rv_ireg_s10,
81     rv_ireg_s11,
82     rv_ireg_t3,
83     rv_ireg_t4,
84     rv_ireg_t5,
85     rv_ireg_t6,
86 } rv_ireg;
87 
88 typedef enum {
89     rvc_end,
90     rvc_simm_6,
91     rvc_imm_6,
92     rvc_imm_7,
93     rvc_imm_8,
94     rvc_imm_9,
95     rvc_imm_10,
96     rvc_imm_12,
97     rvc_imm_18,
98     rvc_imm_nz,
99     rvc_imm_x2,
100     rvc_imm_x4,
101     rvc_imm_x8,
102     rvc_imm_x16,
103     rvc_rd_b3,
104     rvc_rs1_b3,
105     rvc_rs2_b3,
106     rvc_rd_eq_rs1,
107     rvc_rd_eq_ra,
108     rvc_rd_eq_sp,
109     rvc_rd_eq_x0,
110     rvc_rs1_eq_sp,
111     rvc_rs1_eq_x0,
112     rvc_rs2_eq_x0,
113     rvc_rd_ne_x0_x2,
114     rvc_rd_ne_x0,
115     rvc_rs1_ne_x0,
116     rvc_rs2_ne_x0,
117     rvc_rs2_eq_rs1,
118     rvc_rs1_eq_ra,
119     rvc_imm_eq_zero,
120     rvc_imm_eq_n1,
121     rvc_imm_eq_p1,
122     rvc_csr_eq_0x001,
123     rvc_csr_eq_0x002,
124     rvc_csr_eq_0x003,
125     rvc_csr_eq_0xc00,
126     rvc_csr_eq_0xc01,
127     rvc_csr_eq_0xc02,
128     rvc_csr_eq_0xc80,
129     rvc_csr_eq_0xc81,
130     rvc_csr_eq_0xc82,
131 } rvc_constraint;
132 
133 typedef enum {
134     rv_codec_illegal,
135     rv_codec_none,
136     rv_codec_u,
137     rv_codec_uj,
138     rv_codec_i,
139     rv_codec_i_sh5,
140     rv_codec_i_sh6,
141     rv_codec_i_sh7,
142     rv_codec_i_csr,
143     rv_codec_s,
144     rv_codec_sb,
145     rv_codec_r,
146     rv_codec_r_m,
147     rv_codec_r4_m,
148     rv_codec_r_a,
149     rv_codec_r_l,
150     rv_codec_r_f,
151     rv_codec_cb,
152     rv_codec_cb_imm,
153     rv_codec_cb_sh5,
154     rv_codec_cb_sh6,
155     rv_codec_ci,
156     rv_codec_ci_sh5,
157     rv_codec_ci_sh6,
158     rv_codec_ci_16sp,
159     rv_codec_ci_lwsp,
160     rv_codec_ci_ldsp,
161     rv_codec_ci_lqsp,
162     rv_codec_ci_li,
163     rv_codec_ci_lui,
164     rv_codec_ci_none,
165     rv_codec_ciw_4spn,
166     rv_codec_cj,
167     rv_codec_cj_jal,
168     rv_codec_cl_lw,
169     rv_codec_cl_ld,
170     rv_codec_cl_lq,
171     rv_codec_cr,
172     rv_codec_cr_mv,
173     rv_codec_cr_jalr,
174     rv_codec_cr_jr,
175     rv_codec_cs,
176     rv_codec_cs_sw,
177     rv_codec_cs_sd,
178     rv_codec_cs_sq,
179     rv_codec_css_swsp,
180     rv_codec_css_sdsp,
181     rv_codec_css_sqsp,
182 } rv_codec;
183 
184 typedef enum {
185     rv_op_illegal = 0,
186     rv_op_lui = 1,
187     rv_op_auipc = 2,
188     rv_op_jal = 3,
189     rv_op_jalr = 4,
190     rv_op_beq = 5,
191     rv_op_bne = 6,
192     rv_op_blt = 7,
193     rv_op_bge = 8,
194     rv_op_bltu = 9,
195     rv_op_bgeu = 10,
196     rv_op_lb = 11,
197     rv_op_lh = 12,
198     rv_op_lw = 13,
199     rv_op_lbu = 14,
200     rv_op_lhu = 15,
201     rv_op_sb = 16,
202     rv_op_sh = 17,
203     rv_op_sw = 18,
204     rv_op_addi = 19,
205     rv_op_slti = 20,
206     rv_op_sltiu = 21,
207     rv_op_xori = 22,
208     rv_op_ori = 23,
209     rv_op_andi = 24,
210     rv_op_slli = 25,
211     rv_op_srli = 26,
212     rv_op_srai = 27,
213     rv_op_add = 28,
214     rv_op_sub = 29,
215     rv_op_sll = 30,
216     rv_op_slt = 31,
217     rv_op_sltu = 32,
218     rv_op_xor = 33,
219     rv_op_srl = 34,
220     rv_op_sra = 35,
221     rv_op_or = 36,
222     rv_op_and = 37,
223     rv_op_fence = 38,
224     rv_op_fence_i = 39,
225     rv_op_lwu = 40,
226     rv_op_ld = 41,
227     rv_op_sd = 42,
228     rv_op_addiw = 43,
229     rv_op_slliw = 44,
230     rv_op_srliw = 45,
231     rv_op_sraiw = 46,
232     rv_op_addw = 47,
233     rv_op_subw = 48,
234     rv_op_sllw = 49,
235     rv_op_srlw = 50,
236     rv_op_sraw = 51,
237     rv_op_ldu = 52,
238     rv_op_lq = 53,
239     rv_op_sq = 54,
240     rv_op_addid = 55,
241     rv_op_sllid = 56,
242     rv_op_srlid = 57,
243     rv_op_sraid = 58,
244     rv_op_addd = 59,
245     rv_op_subd = 60,
246     rv_op_slld = 61,
247     rv_op_srld = 62,
248     rv_op_srad = 63,
249     rv_op_mul = 64,
250     rv_op_mulh = 65,
251     rv_op_mulhsu = 66,
252     rv_op_mulhu = 67,
253     rv_op_div = 68,
254     rv_op_divu = 69,
255     rv_op_rem = 70,
256     rv_op_remu = 71,
257     rv_op_mulw = 72,
258     rv_op_divw = 73,
259     rv_op_divuw = 74,
260     rv_op_remw = 75,
261     rv_op_remuw = 76,
262     rv_op_muld = 77,
263     rv_op_divd = 78,
264     rv_op_divud = 79,
265     rv_op_remd = 80,
266     rv_op_remud = 81,
267     rv_op_lr_w = 82,
268     rv_op_sc_w = 83,
269     rv_op_amoswap_w = 84,
270     rv_op_amoadd_w = 85,
271     rv_op_amoxor_w = 86,
272     rv_op_amoor_w = 87,
273     rv_op_amoand_w = 88,
274     rv_op_amomin_w = 89,
275     rv_op_amomax_w = 90,
276     rv_op_amominu_w = 91,
277     rv_op_amomaxu_w = 92,
278     rv_op_lr_d = 93,
279     rv_op_sc_d = 94,
280     rv_op_amoswap_d = 95,
281     rv_op_amoadd_d = 96,
282     rv_op_amoxor_d = 97,
283     rv_op_amoor_d = 98,
284     rv_op_amoand_d = 99,
285     rv_op_amomin_d = 100,
286     rv_op_amomax_d = 101,
287     rv_op_amominu_d = 102,
288     rv_op_amomaxu_d = 103,
289     rv_op_lr_q = 104,
290     rv_op_sc_q = 105,
291     rv_op_amoswap_q = 106,
292     rv_op_amoadd_q = 107,
293     rv_op_amoxor_q = 108,
294     rv_op_amoor_q = 109,
295     rv_op_amoand_q = 110,
296     rv_op_amomin_q = 111,
297     rv_op_amomax_q = 112,
298     rv_op_amominu_q = 113,
299     rv_op_amomaxu_q = 114,
300     rv_op_ecall = 115,
301     rv_op_ebreak = 116,
302     rv_op_uret = 117,
303     rv_op_sret = 118,
304     rv_op_hret = 119,
305     rv_op_mret = 120,
306     rv_op_dret = 121,
307     rv_op_sfence_vm = 122,
308     rv_op_sfence_vma = 123,
309     rv_op_wfi = 124,
310     rv_op_csrrw = 125,
311     rv_op_csrrs = 126,
312     rv_op_csrrc = 127,
313     rv_op_csrrwi = 128,
314     rv_op_csrrsi = 129,
315     rv_op_csrrci = 130,
316     rv_op_flw = 131,
317     rv_op_fsw = 132,
318     rv_op_fmadd_s = 133,
319     rv_op_fmsub_s = 134,
320     rv_op_fnmsub_s = 135,
321     rv_op_fnmadd_s = 136,
322     rv_op_fadd_s = 137,
323     rv_op_fsub_s = 138,
324     rv_op_fmul_s = 139,
325     rv_op_fdiv_s = 140,
326     rv_op_fsgnj_s = 141,
327     rv_op_fsgnjn_s = 142,
328     rv_op_fsgnjx_s = 143,
329     rv_op_fmin_s = 144,
330     rv_op_fmax_s = 145,
331     rv_op_fsqrt_s = 146,
332     rv_op_fle_s = 147,
333     rv_op_flt_s = 148,
334     rv_op_feq_s = 149,
335     rv_op_fcvt_w_s = 150,
336     rv_op_fcvt_wu_s = 151,
337     rv_op_fcvt_s_w = 152,
338     rv_op_fcvt_s_wu = 153,
339     rv_op_fmv_x_s = 154,
340     rv_op_fclass_s = 155,
341     rv_op_fmv_s_x = 156,
342     rv_op_fcvt_l_s = 157,
343     rv_op_fcvt_lu_s = 158,
344     rv_op_fcvt_s_l = 159,
345     rv_op_fcvt_s_lu = 160,
346     rv_op_fld = 161,
347     rv_op_fsd = 162,
348     rv_op_fmadd_d = 163,
349     rv_op_fmsub_d = 164,
350     rv_op_fnmsub_d = 165,
351     rv_op_fnmadd_d = 166,
352     rv_op_fadd_d = 167,
353     rv_op_fsub_d = 168,
354     rv_op_fmul_d = 169,
355     rv_op_fdiv_d = 170,
356     rv_op_fsgnj_d = 171,
357     rv_op_fsgnjn_d = 172,
358     rv_op_fsgnjx_d = 173,
359     rv_op_fmin_d = 174,
360     rv_op_fmax_d = 175,
361     rv_op_fcvt_s_d = 176,
362     rv_op_fcvt_d_s = 177,
363     rv_op_fsqrt_d = 178,
364     rv_op_fle_d = 179,
365     rv_op_flt_d = 180,
366     rv_op_feq_d = 181,
367     rv_op_fcvt_w_d = 182,
368     rv_op_fcvt_wu_d = 183,
369     rv_op_fcvt_d_w = 184,
370     rv_op_fcvt_d_wu = 185,
371     rv_op_fclass_d = 186,
372     rv_op_fcvt_l_d = 187,
373     rv_op_fcvt_lu_d = 188,
374     rv_op_fmv_x_d = 189,
375     rv_op_fcvt_d_l = 190,
376     rv_op_fcvt_d_lu = 191,
377     rv_op_fmv_d_x = 192,
378     rv_op_flq = 193,
379     rv_op_fsq = 194,
380     rv_op_fmadd_q = 195,
381     rv_op_fmsub_q = 196,
382     rv_op_fnmsub_q = 197,
383     rv_op_fnmadd_q = 198,
384     rv_op_fadd_q = 199,
385     rv_op_fsub_q = 200,
386     rv_op_fmul_q = 201,
387     rv_op_fdiv_q = 202,
388     rv_op_fsgnj_q = 203,
389     rv_op_fsgnjn_q = 204,
390     rv_op_fsgnjx_q = 205,
391     rv_op_fmin_q = 206,
392     rv_op_fmax_q = 207,
393     rv_op_fcvt_s_q = 208,
394     rv_op_fcvt_q_s = 209,
395     rv_op_fcvt_d_q = 210,
396     rv_op_fcvt_q_d = 211,
397     rv_op_fsqrt_q = 212,
398     rv_op_fle_q = 213,
399     rv_op_flt_q = 214,
400     rv_op_feq_q = 215,
401     rv_op_fcvt_w_q = 216,
402     rv_op_fcvt_wu_q = 217,
403     rv_op_fcvt_q_w = 218,
404     rv_op_fcvt_q_wu = 219,
405     rv_op_fclass_q = 220,
406     rv_op_fcvt_l_q = 221,
407     rv_op_fcvt_lu_q = 222,
408     rv_op_fcvt_q_l = 223,
409     rv_op_fcvt_q_lu = 224,
410     rv_op_fmv_x_q = 225,
411     rv_op_fmv_q_x = 226,
412     rv_op_c_addi4spn = 227,
413     rv_op_c_fld = 228,
414     rv_op_c_lw = 229,
415     rv_op_c_flw = 230,
416     rv_op_c_fsd = 231,
417     rv_op_c_sw = 232,
418     rv_op_c_fsw = 233,
419     rv_op_c_nop = 234,
420     rv_op_c_addi = 235,
421     rv_op_c_jal = 236,
422     rv_op_c_li = 237,
423     rv_op_c_addi16sp = 238,
424     rv_op_c_lui = 239,
425     rv_op_c_srli = 240,
426     rv_op_c_srai = 241,
427     rv_op_c_andi = 242,
428     rv_op_c_sub = 243,
429     rv_op_c_xor = 244,
430     rv_op_c_or = 245,
431     rv_op_c_and = 246,
432     rv_op_c_subw = 247,
433     rv_op_c_addw = 248,
434     rv_op_c_j = 249,
435     rv_op_c_beqz = 250,
436     rv_op_c_bnez = 251,
437     rv_op_c_slli = 252,
438     rv_op_c_fldsp = 253,
439     rv_op_c_lwsp = 254,
440     rv_op_c_flwsp = 255,
441     rv_op_c_jr = 256,
442     rv_op_c_mv = 257,
443     rv_op_c_ebreak = 258,
444     rv_op_c_jalr = 259,
445     rv_op_c_add = 260,
446     rv_op_c_fsdsp = 261,
447     rv_op_c_swsp = 262,
448     rv_op_c_fswsp = 263,
449     rv_op_c_ld = 264,
450     rv_op_c_sd = 265,
451     rv_op_c_addiw = 266,
452     rv_op_c_ldsp = 267,
453     rv_op_c_sdsp = 268,
454     rv_op_c_lq = 269,
455     rv_op_c_sq = 270,
456     rv_op_c_lqsp = 271,
457     rv_op_c_sqsp = 272,
458     rv_op_nop = 273,
459     rv_op_mv = 274,
460     rv_op_not = 275,
461     rv_op_neg = 276,
462     rv_op_negw = 277,
463     rv_op_sext_w = 278,
464     rv_op_seqz = 279,
465     rv_op_snez = 280,
466     rv_op_sltz = 281,
467     rv_op_sgtz = 282,
468     rv_op_fmv_s = 283,
469     rv_op_fabs_s = 284,
470     rv_op_fneg_s = 285,
471     rv_op_fmv_d = 286,
472     rv_op_fabs_d = 287,
473     rv_op_fneg_d = 288,
474     rv_op_fmv_q = 289,
475     rv_op_fabs_q = 290,
476     rv_op_fneg_q = 291,
477     rv_op_beqz = 292,
478     rv_op_bnez = 293,
479     rv_op_blez = 294,
480     rv_op_bgez = 295,
481     rv_op_bltz = 296,
482     rv_op_bgtz = 297,
483     rv_op_ble = 298,
484     rv_op_bleu = 299,
485     rv_op_bgt = 300,
486     rv_op_bgtu = 301,
487     rv_op_j = 302,
488     rv_op_ret = 303,
489     rv_op_jr = 304,
490     rv_op_rdcycle = 305,
491     rv_op_rdtime = 306,
492     rv_op_rdinstret = 307,
493     rv_op_rdcycleh = 308,
494     rv_op_rdtimeh = 309,
495     rv_op_rdinstreth = 310,
496     rv_op_frcsr = 311,
497     rv_op_frrm = 312,
498     rv_op_frflags = 313,
499     rv_op_fscsr = 314,
500     rv_op_fsrm = 315,
501     rv_op_fsflags = 316,
502     rv_op_fsrmi = 317,
503     rv_op_fsflagsi = 318,
504 } rv_op;
505 
506 /* structures */
507 
508 typedef struct {
509     uint64_t  pc;
510     uint64_t  inst;
511     int32_t   imm;
512     uint16_t  op;
513     uint8_t   codec;
514     uint8_t   rd;
515     uint8_t   rs1;
516     uint8_t   rs2;
517     uint8_t   rs3;
518     uint8_t   rm;
519     uint8_t   pred;
520     uint8_t   succ;
521     uint8_t   aq;
522     uint8_t   rl;
523 } rv_decode;
524 
525 typedef struct {
526     const int op;
527     const rvc_constraint *constraints;
528 } rv_comp_data;
529 
530 typedef struct {
531     const char * const name;
532     const rv_codec codec;
533     const char * const format;
534     const rv_comp_data *pseudo;
535     const int decomp_rv32;
536     const int decomp_rv64;
537     const int decomp_rv128;
538 } rv_opcode_data;
539 
540 /* register names */
541 
542 static const char rv_ireg_name_sym[32][5] = {
543     "zero", "ra",   "sp",   "gp",   "tp",   "t0",   "t1",   "t2",
544     "s0",   "s1",   "a0",   "a1",   "a2",   "a3",   "a4",   "a5",
545     "a6",   "a7",   "s2",   "s3",   "s4",   "s5",   "s6",   "s7",
546     "s8",   "s9",   "s10",  "s11",  "t3",   "t4",   "t5",   "t6",
547 };
548 
549 static const char rv_freg_name_sym[32][5] = {
550     "ft0",  "ft1",  "ft2",  "ft3",  "ft4",  "ft5",  "ft6",  "ft7",
551     "fs0",  "fs1",  "fa0",  "fa1",  "fa2",  "fa3",  "fa4",  "fa5",
552     "fa6",  "fa7",  "fs2",  "fs3",  "fs4",  "fs5",  "fs6",  "fs7",
553     "fs8",  "fs9",  "fs10", "fs11", "ft8",  "ft9",  "ft10", "ft11",
554 };
555 
556 /* instruction formats */
557 
558 #define rv_fmt_none                   "O\t"
559 #define rv_fmt_rs1                    "O\t1"
560 #define rv_fmt_offset                 "O\to"
561 #define rv_fmt_pred_succ              "O\tp,s"
562 #define rv_fmt_rs1_rs2                "O\t1,2"
563 #define rv_fmt_rd_imm                 "O\t0,i"
564 #define rv_fmt_rd_offset              "O\t0,o"
565 #define rv_fmt_rd_rs1_rs2             "O\t0,1,2"
566 #define rv_fmt_frd_rs1                "O\t3,1"
567 #define rv_fmt_rd_frs1                "O\t0,4"
568 #define rv_fmt_rd_frs1_frs2           "O\t0,4,5"
569 #define rv_fmt_frd_frs1_frs2          "O\t3,4,5"
570 #define rv_fmt_rm_frd_frs1            "O\tr,3,4"
571 #define rv_fmt_rm_frd_rs1             "O\tr,3,1"
572 #define rv_fmt_rm_rd_frs1             "O\tr,0,4"
573 #define rv_fmt_rm_frd_frs1_frs2       "O\tr,3,4,5"
574 #define rv_fmt_rm_frd_frs1_frs2_frs3  "O\tr,3,4,5,6"
575 #define rv_fmt_rd_rs1_imm             "O\t0,1,i"
576 #define rv_fmt_rd_rs1_offset          "O\t0,1,i"
577 #define rv_fmt_rd_offset_rs1          "O\t0,i(1)"
578 #define rv_fmt_frd_offset_rs1         "O\t3,i(1)"
579 #define rv_fmt_rd_csr_rs1             "O\t0,c,1"
580 #define rv_fmt_rd_csr_zimm            "O\t0,c,7"
581 #define rv_fmt_rs2_offset_rs1         "O\t2,i(1)"
582 #define rv_fmt_frs2_offset_rs1        "O\t5,i(1)"
583 #define rv_fmt_rs1_rs2_offset         "O\t1,2,o"
584 #define rv_fmt_rs2_rs1_offset         "O\t2,1,o"
585 #define rv_fmt_aqrl_rd_rs2_rs1        "OAR\t0,2,(1)"
586 #define rv_fmt_aqrl_rd_rs1            "OAR\t0,(1)"
587 #define rv_fmt_rd                     "O\t0"
588 #define rv_fmt_rd_zimm                "O\t0,7"
589 #define rv_fmt_rd_rs1                 "O\t0,1"
590 #define rv_fmt_rd_rs2                 "O\t0,2"
591 #define rv_fmt_rs1_offset             "O\t1,o"
592 #define rv_fmt_rs2_offset             "O\t2,o"
593 
594 /* pseudo-instruction constraints */
595 
596 static const rvc_constraint rvcc_jal[] = { rvc_rd_eq_ra, rvc_end };
597 static const rvc_constraint rvcc_jalr[] = { rvc_rd_eq_ra, rvc_imm_eq_zero, rvc_end };
598 static const rvc_constraint rvcc_nop[] = { rvc_rd_eq_x0, rvc_rs1_eq_x0, rvc_imm_eq_zero, rvc_end };
599 static const rvc_constraint rvcc_mv[] = { rvc_imm_eq_zero, rvc_end };
600 static const rvc_constraint rvcc_not[] = { rvc_imm_eq_n1, rvc_end };
601 static const rvc_constraint rvcc_neg[] = { rvc_rs1_eq_x0, rvc_end };
602 static const rvc_constraint rvcc_negw[] = { rvc_rs1_eq_x0, rvc_end };
603 static const rvc_constraint rvcc_sext_w[] = { rvc_imm_eq_zero, rvc_end };
604 static const rvc_constraint rvcc_seqz[] = { rvc_imm_eq_p1, rvc_end };
605 static const rvc_constraint rvcc_snez[] = { rvc_rs1_eq_x0, rvc_end };
606 static const rvc_constraint rvcc_sltz[] = { rvc_rs2_eq_x0, rvc_end };
607 static const rvc_constraint rvcc_sgtz[] = { rvc_rs1_eq_x0, rvc_end };
608 static const rvc_constraint rvcc_fmv_s[] = { rvc_rs2_eq_rs1, rvc_end };
609 static const rvc_constraint rvcc_fabs_s[] = { rvc_rs2_eq_rs1, rvc_end };
610 static const rvc_constraint rvcc_fneg_s[] = { rvc_rs2_eq_rs1, rvc_end };
611 static const rvc_constraint rvcc_fmv_d[] = { rvc_rs2_eq_rs1, rvc_end };
612 static const rvc_constraint rvcc_fabs_d[] = { rvc_rs2_eq_rs1, rvc_end };
613 static const rvc_constraint rvcc_fneg_d[] = { rvc_rs2_eq_rs1, rvc_end };
614 static const rvc_constraint rvcc_fmv_q[] = { rvc_rs2_eq_rs1, rvc_end };
615 static const rvc_constraint rvcc_fabs_q[] = { rvc_rs2_eq_rs1, rvc_end };
616 static const rvc_constraint rvcc_fneg_q[] = { rvc_rs2_eq_rs1, rvc_end };
617 static const rvc_constraint rvcc_beqz[] = { rvc_rs2_eq_x0, rvc_end };
618 static const rvc_constraint rvcc_bnez[] = { rvc_rs2_eq_x0, rvc_end };
619 static const rvc_constraint rvcc_blez[] = { rvc_rs1_eq_x0, rvc_end };
620 static const rvc_constraint rvcc_bgez[] = { rvc_rs2_eq_x0, rvc_end };
621 static const rvc_constraint rvcc_bltz[] = { rvc_rs2_eq_x0, rvc_end };
622 static const rvc_constraint rvcc_bgtz[] = { rvc_rs1_eq_x0, rvc_end };
623 static const rvc_constraint rvcc_ble[] = { rvc_end };
624 static const rvc_constraint rvcc_bleu[] = { rvc_end };
625 static const rvc_constraint rvcc_bgt[] = { rvc_end };
626 static const rvc_constraint rvcc_bgtu[] = { rvc_end };
627 static const rvc_constraint rvcc_j[] = { rvc_rd_eq_x0, rvc_end };
628 static const rvc_constraint rvcc_ret[] = { rvc_rd_eq_x0, rvc_rs1_eq_ra, rvc_end };
629 static const rvc_constraint rvcc_jr[] = { rvc_rd_eq_x0, rvc_imm_eq_zero, rvc_end };
630 static const rvc_constraint rvcc_rdcycle[] = { rvc_rs1_eq_x0, rvc_csr_eq_0xc00, rvc_end };
631 static const rvc_constraint rvcc_rdtime[] = { rvc_rs1_eq_x0, rvc_csr_eq_0xc01, rvc_end };
632 static const rvc_constraint rvcc_rdinstret[] = { rvc_rs1_eq_x0, rvc_csr_eq_0xc02, rvc_end };
633 static const rvc_constraint rvcc_rdcycleh[] = { rvc_rs1_eq_x0, rvc_csr_eq_0xc80, rvc_end };
634 static const rvc_constraint rvcc_rdtimeh[] = { rvc_rs1_eq_x0, rvc_csr_eq_0xc81, rvc_end };
635 static const rvc_constraint rvcc_rdinstreth[] = { rvc_rs1_eq_x0, rvc_csr_eq_0xc80, rvc_end };
636 static const rvc_constraint rvcc_frcsr[] = { rvc_rs1_eq_x0, rvc_csr_eq_0x003, rvc_end };
637 static const rvc_constraint rvcc_frrm[] = { rvc_rs1_eq_x0, rvc_csr_eq_0x002, rvc_end };
638 static const rvc_constraint rvcc_frflags[] = { rvc_rs1_eq_x0, rvc_csr_eq_0x001, rvc_end };
639 static const rvc_constraint rvcc_fscsr[] = { rvc_csr_eq_0x003, rvc_end };
640 static const rvc_constraint rvcc_fsrm[] = { rvc_csr_eq_0x002, rvc_end };
641 static const rvc_constraint rvcc_fsflags[] = { rvc_csr_eq_0x001, rvc_end };
642 static const rvc_constraint rvcc_fsrmi[] = { rvc_csr_eq_0x002, rvc_end };
643 static const rvc_constraint rvcc_fsflagsi[] = { rvc_csr_eq_0x001, rvc_end };
644 
645 /* pseudo-instruction metadata */
646 
647 static const rv_comp_data rvcp_jal[] = {
648     { rv_op_j, rvcc_j },
649     { rv_op_jal, rvcc_jal },
650     { rv_op_illegal, NULL }
651 };
652 
653 static const rv_comp_data rvcp_jalr[] = {
654     { rv_op_ret, rvcc_ret },
655     { rv_op_jr, rvcc_jr },
656     { rv_op_jalr, rvcc_jalr },
657     { rv_op_illegal, NULL }
658 };
659 
660 static const rv_comp_data rvcp_beq[] = {
661     { rv_op_beqz, rvcc_beqz },
662     { rv_op_illegal, NULL }
663 };
664 
665 static const rv_comp_data rvcp_bne[] = {
666     { rv_op_bnez, rvcc_bnez },
667     { rv_op_illegal, NULL }
668 };
669 
670 static const rv_comp_data rvcp_blt[] = {
671     { rv_op_bltz, rvcc_bltz },
672     { rv_op_bgtz, rvcc_bgtz },
673     { rv_op_bgt, rvcc_bgt },
674     { rv_op_illegal, NULL }
675 };
676 
677 static const rv_comp_data rvcp_bge[] = {
678     { rv_op_blez, rvcc_blez },
679     { rv_op_bgez, rvcc_bgez },
680     { rv_op_ble, rvcc_ble },
681     { rv_op_illegal, NULL }
682 };
683 
684 static const rv_comp_data rvcp_bltu[] = {
685     { rv_op_bgtu, rvcc_bgtu },
686     { rv_op_illegal, NULL }
687 };
688 
689 static const rv_comp_data rvcp_bgeu[] = {
690     { rv_op_bleu, rvcc_bleu },
691     { rv_op_illegal, NULL }
692 };
693 
694 static const rv_comp_data rvcp_addi[] = {
695     { rv_op_nop, rvcc_nop },
696     { rv_op_mv, rvcc_mv },
697     { rv_op_illegal, NULL }
698 };
699 
700 static const rv_comp_data rvcp_sltiu[] = {
701     { rv_op_seqz, rvcc_seqz },
702     { rv_op_illegal, NULL }
703 };
704 
705 static const rv_comp_data rvcp_xori[] = {
706     { rv_op_not, rvcc_not },
707     { rv_op_illegal, NULL }
708 };
709 
710 static const rv_comp_data rvcp_sub[] = {
711     { rv_op_neg, rvcc_neg },
712     { rv_op_illegal, NULL }
713 };
714 
715 static const rv_comp_data rvcp_slt[] = {
716     { rv_op_sltz, rvcc_sltz },
717     { rv_op_sgtz, rvcc_sgtz },
718     { rv_op_illegal, NULL }
719 };
720 
721 static const rv_comp_data rvcp_sltu[] = {
722     { rv_op_snez, rvcc_snez },
723     { rv_op_illegal, NULL }
724 };
725 
726 static const rv_comp_data rvcp_addiw[] = {
727     { rv_op_sext_w, rvcc_sext_w },
728     { rv_op_illegal, NULL }
729 };
730 
731 static const rv_comp_data rvcp_subw[] = {
732     { rv_op_negw, rvcc_negw },
733     { rv_op_illegal, NULL }
734 };
735 
736 static const rv_comp_data rvcp_csrrw[] = {
737     { rv_op_fscsr, rvcc_fscsr },
738     { rv_op_fsrm, rvcc_fsrm },
739     { rv_op_fsflags, rvcc_fsflags },
740     { rv_op_illegal, NULL }
741 };
742 
743 static const rv_comp_data rvcp_csrrs[] = {
744     { rv_op_rdcycle, rvcc_rdcycle },
745     { rv_op_rdtime, rvcc_rdtime },
746     { rv_op_rdinstret, rvcc_rdinstret },
747     { rv_op_rdcycleh, rvcc_rdcycleh },
748     { rv_op_rdtimeh, rvcc_rdtimeh },
749     { rv_op_rdinstreth, rvcc_rdinstreth },
750     { rv_op_frcsr, rvcc_frcsr },
751     { rv_op_frrm, rvcc_frrm },
752     { rv_op_frflags, rvcc_frflags },
753     { rv_op_illegal, NULL }
754 };
755 
756 static const rv_comp_data rvcp_csrrwi[] = {
757     { rv_op_fsrmi, rvcc_fsrmi },
758     { rv_op_fsflagsi, rvcc_fsflagsi },
759     { rv_op_illegal, NULL }
760 };
761 
762 static const rv_comp_data rvcp_fsgnj_s[] = {
763     { rv_op_fmv_s, rvcc_fmv_s },
764     { rv_op_illegal, NULL }
765 };
766 
767 static const rv_comp_data rvcp_fsgnjn_s[] = {
768     { rv_op_fneg_s, rvcc_fneg_s },
769     { rv_op_illegal, NULL }
770 };
771 
772 static const rv_comp_data rvcp_fsgnjx_s[] = {
773     { rv_op_fabs_s, rvcc_fabs_s },
774     { rv_op_illegal, NULL }
775 };
776 
777 static const rv_comp_data rvcp_fsgnj_d[] = {
778     { rv_op_fmv_d, rvcc_fmv_d },
779     { rv_op_illegal, NULL }
780 };
781 
782 static const rv_comp_data rvcp_fsgnjn_d[] = {
783     { rv_op_fneg_d, rvcc_fneg_d },
784     { rv_op_illegal, NULL }
785 };
786 
787 static const rv_comp_data rvcp_fsgnjx_d[] = {
788     { rv_op_fabs_d, rvcc_fabs_d },
789     { rv_op_illegal, NULL }
790 };
791 
792 static const rv_comp_data rvcp_fsgnj_q[] = {
793     { rv_op_fmv_q, rvcc_fmv_q },
794     { rv_op_illegal, NULL }
795 };
796 
797 static const rv_comp_data rvcp_fsgnjn_q[] = {
798     { rv_op_fneg_q, rvcc_fneg_q },
799     { rv_op_illegal, NULL }
800 };
801 
802 static const rv_comp_data rvcp_fsgnjx_q[] = {
803     { rv_op_fabs_q, rvcc_fabs_q },
804     { rv_op_illegal, NULL }
805 };
806 
807 /* instruction metadata */
808 
809 const rv_opcode_data opcode_data[] = {
810     { "illegal", rv_codec_illegal, rv_fmt_none, NULL, 0, 0, 0 },
811     { "lui", rv_codec_u, rv_fmt_rd_imm, NULL, 0, 0, 0 },
812     { "auipc", rv_codec_u, rv_fmt_rd_offset, NULL, 0, 0, 0 },
813     { "jal", rv_codec_uj, rv_fmt_rd_offset, rvcp_jal, 0, 0, 0 },
814     { "jalr", rv_codec_i, rv_fmt_rd_rs1_offset, rvcp_jalr, 0, 0, 0 },
815     { "beq", rv_codec_sb, rv_fmt_rs1_rs2_offset, rvcp_beq, 0, 0, 0 },
816     { "bne", rv_codec_sb, rv_fmt_rs1_rs2_offset, rvcp_bne, 0, 0, 0 },
817     { "blt", rv_codec_sb, rv_fmt_rs1_rs2_offset, rvcp_blt, 0, 0, 0 },
818     { "bge", rv_codec_sb, rv_fmt_rs1_rs2_offset, rvcp_bge, 0, 0, 0 },
819     { "bltu", rv_codec_sb, rv_fmt_rs1_rs2_offset, rvcp_bltu, 0, 0, 0 },
820     { "bgeu", rv_codec_sb, rv_fmt_rs1_rs2_offset, rvcp_bgeu, 0, 0, 0 },
821     { "lb", rv_codec_i, rv_fmt_rd_offset_rs1, NULL, 0, 0, 0 },
822     { "lh", rv_codec_i, rv_fmt_rd_offset_rs1, NULL, 0, 0, 0 },
823     { "lw", rv_codec_i, rv_fmt_rd_offset_rs1, NULL, 0, 0, 0 },
824     { "lbu", rv_codec_i, rv_fmt_rd_offset_rs1, NULL, 0, 0, 0 },
825     { "lhu", rv_codec_i, rv_fmt_rd_offset_rs1, NULL, 0, 0, 0 },
826     { "sb", rv_codec_s, rv_fmt_rs2_offset_rs1, NULL, 0, 0, 0 },
827     { "sh", rv_codec_s, rv_fmt_rs2_offset_rs1, NULL, 0, 0, 0 },
828     { "sw", rv_codec_s, rv_fmt_rs2_offset_rs1, NULL, 0, 0, 0 },
829     { "addi", rv_codec_i, rv_fmt_rd_rs1_imm, rvcp_addi, 0, 0, 0 },
830     { "slti", rv_codec_i, rv_fmt_rd_rs1_imm, NULL, 0, 0, 0 },
831     { "sltiu", rv_codec_i, rv_fmt_rd_rs1_imm, rvcp_sltiu, 0, 0, 0 },
832     { "xori", rv_codec_i, rv_fmt_rd_rs1_imm, rvcp_xori, 0, 0, 0 },
833     { "ori", rv_codec_i, rv_fmt_rd_rs1_imm, NULL, 0, 0, 0 },
834     { "andi", rv_codec_i, rv_fmt_rd_rs1_imm, NULL, 0, 0, 0 },
835     { "slli", rv_codec_i_sh7, rv_fmt_rd_rs1_imm, NULL, 0, 0, 0 },
836     { "srli", rv_codec_i_sh7, rv_fmt_rd_rs1_imm, NULL, 0, 0, 0 },
837     { "srai", rv_codec_i_sh7, rv_fmt_rd_rs1_imm, NULL, 0, 0, 0 },
838     { "add", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 },
839     { "sub", rv_codec_r, rv_fmt_rd_rs1_rs2, rvcp_sub, 0, 0, 0 },
840     { "sll", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 },
841     { "slt", rv_codec_r, rv_fmt_rd_rs1_rs2, rvcp_slt, 0, 0, 0 },
842     { "sltu", rv_codec_r, rv_fmt_rd_rs1_rs2, rvcp_sltu, 0, 0, 0 },
843     { "xor", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 },
844     { "srl", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 },
845     { "sra", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 },
846     { "or", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 },
847     { "and", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 },
848     { "fence", rv_codec_r_f, rv_fmt_pred_succ, NULL, 0, 0, 0 },
849     { "fence.i", rv_codec_none, rv_fmt_none, NULL, 0, 0, 0 },
850     { "lwu", rv_codec_i, rv_fmt_rd_offset_rs1, NULL, 0, 0, 0 },
851     { "ld", rv_codec_i, rv_fmt_rd_offset_rs1, NULL, 0, 0, 0 },
852     { "sd", rv_codec_s, rv_fmt_rs2_offset_rs1, NULL, 0, 0, 0 },
853     { "addiw", rv_codec_i, rv_fmt_rd_rs1_imm, rvcp_addiw, 0, 0, 0 },
854     { "slliw", rv_codec_i_sh5, rv_fmt_rd_rs1_imm, NULL, 0, 0, 0 },
855     { "srliw", rv_codec_i_sh5, rv_fmt_rd_rs1_imm, NULL, 0, 0, 0 },
856     { "sraiw", rv_codec_i_sh5, rv_fmt_rd_rs1_imm, NULL, 0, 0, 0 },
857     { "addw", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 },
858     { "subw", rv_codec_r, rv_fmt_rd_rs1_rs2, rvcp_subw, 0, 0, 0 },
859     { "sllw", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 },
860     { "srlw", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 },
861     { "sraw", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 },
862     { "ldu", rv_codec_i, rv_fmt_rd_offset_rs1, NULL, 0, 0, 0 },
863     { "lq", rv_codec_i, rv_fmt_rd_offset_rs1, NULL, 0, 0, 0 },
864     { "sq", rv_codec_s, rv_fmt_rs2_offset_rs1, NULL, 0, 0, 0 },
865     { "addid", rv_codec_i, rv_fmt_rd_rs1_imm, NULL, 0, 0, 0 },
866     { "sllid", rv_codec_i_sh6, rv_fmt_rd_rs1_imm, NULL, 0, 0, 0 },
867     { "srlid", rv_codec_i_sh6, rv_fmt_rd_rs1_imm, NULL, 0, 0, 0 },
868     { "sraid", rv_codec_i_sh6, rv_fmt_rd_rs1_imm, NULL, 0, 0, 0 },
869     { "addd", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 },
870     { "subd", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 },
871     { "slld", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 },
872     { "srld", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 },
873     { "srad", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 },
874     { "mul", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 },
875     { "mulh", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 },
876     { "mulhsu", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 },
877     { "mulhu", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 },
878     { "div", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 },
879     { "divu", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 },
880     { "rem", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 },
881     { "remu", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 },
882     { "mulw", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 },
883     { "divw", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 },
884     { "divuw", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 },
885     { "remw", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 },
886     { "remuw", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 },
887     { "muld", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 },
888     { "divd", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 },
889     { "divud", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 },
890     { "remd", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 },
891     { "remud", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 },
892     { "lr.w", rv_codec_r_l, rv_fmt_aqrl_rd_rs1, NULL, 0, 0, 0 },
893     { "sc.w", rv_codec_r_a, rv_fmt_aqrl_rd_rs2_rs1, NULL, 0, 0, 0 },
894     { "amoswap.w", rv_codec_r_a, rv_fmt_aqrl_rd_rs2_rs1, NULL, 0, 0, 0 },
895     { "amoadd.w", rv_codec_r_a, rv_fmt_aqrl_rd_rs2_rs1, NULL, 0, 0, 0 },
896     { "amoxor.w", rv_codec_r_a, rv_fmt_aqrl_rd_rs2_rs1, NULL, 0, 0, 0 },
897     { "amoor.w", rv_codec_r_a, rv_fmt_aqrl_rd_rs2_rs1, NULL, 0, 0, 0 },
898     { "amoand.w", rv_codec_r_a, rv_fmt_aqrl_rd_rs2_rs1, NULL, 0, 0, 0 },
899     { "amomin.w", rv_codec_r_a, rv_fmt_aqrl_rd_rs2_rs1, NULL, 0, 0, 0 },
900     { "amomax.w", rv_codec_r_a, rv_fmt_aqrl_rd_rs2_rs1, NULL, 0, 0, 0 },
901     { "amominu.w", rv_codec_r_a, rv_fmt_aqrl_rd_rs2_rs1, NULL, 0, 0, 0 },
902     { "amomaxu.w", rv_codec_r_a, rv_fmt_aqrl_rd_rs2_rs1, NULL, 0, 0, 0 },
903     { "lr.d", rv_codec_r_l, rv_fmt_aqrl_rd_rs1, NULL, 0, 0, 0 },
904     { "sc.d", rv_codec_r_a, rv_fmt_aqrl_rd_rs2_rs1, NULL, 0, 0, 0 },
905     { "amoswap.d", rv_codec_r_a, rv_fmt_aqrl_rd_rs2_rs1, NULL, 0, 0, 0 },
906     { "amoadd.d", rv_codec_r_a, rv_fmt_aqrl_rd_rs2_rs1, NULL, 0, 0, 0 },
907     { "amoxor.d", rv_codec_r_a, rv_fmt_aqrl_rd_rs2_rs1, NULL, 0, 0, 0 },
908     { "amoor.d", rv_codec_r_a, rv_fmt_aqrl_rd_rs2_rs1, NULL, 0, 0, 0 },
909     { "amoand.d", rv_codec_r_a, rv_fmt_aqrl_rd_rs2_rs1, NULL, 0, 0, 0 },
910     { "amomin.d", rv_codec_r_a, rv_fmt_aqrl_rd_rs2_rs1, NULL, 0, 0, 0 },
911     { "amomax.d", rv_codec_r_a, rv_fmt_aqrl_rd_rs2_rs1, NULL, 0, 0, 0 },
912     { "amominu.d", rv_codec_r_a, rv_fmt_aqrl_rd_rs2_rs1, NULL, 0, 0, 0 },
913     { "amomaxu.d", rv_codec_r_a, rv_fmt_aqrl_rd_rs2_rs1, NULL, 0, 0, 0 },
914     { "lr.q", rv_codec_r_l, rv_fmt_aqrl_rd_rs1, NULL, 0, 0, 0 },
915     { "sc.q", rv_codec_r_a, rv_fmt_aqrl_rd_rs2_rs1, NULL, 0, 0, 0 },
916     { "amoswap.q", rv_codec_r_a, rv_fmt_aqrl_rd_rs2_rs1, NULL, 0, 0, 0 },
917     { "amoadd.q", rv_codec_r_a, rv_fmt_aqrl_rd_rs2_rs1, NULL, 0, 0, 0 },
918     { "amoxor.q", rv_codec_r_a, rv_fmt_aqrl_rd_rs2_rs1, NULL, 0, 0, 0 },
919     { "amoor.q", rv_codec_r_a, rv_fmt_aqrl_rd_rs2_rs1, NULL, 0, 0, 0 },
920     { "amoand.q", rv_codec_r_a, rv_fmt_aqrl_rd_rs2_rs1, NULL, 0, 0, 0 },
921     { "amomin.q", rv_codec_r_a, rv_fmt_aqrl_rd_rs2_rs1, NULL, 0, 0, 0 },
922     { "amomax.q", rv_codec_r_a, rv_fmt_aqrl_rd_rs2_rs1, NULL, 0, 0, 0 },
923     { "amominu.q", rv_codec_r_a, rv_fmt_aqrl_rd_rs2_rs1, NULL, 0, 0, 0 },
924     { "amomaxu.q", rv_codec_r_a, rv_fmt_aqrl_rd_rs2_rs1, NULL, 0, 0, 0 },
925     { "ecall", rv_codec_none, rv_fmt_none, NULL, 0, 0, 0 },
926     { "ebreak", rv_codec_none, rv_fmt_none, NULL, 0, 0, 0 },
927     { "uret", rv_codec_none, rv_fmt_none, NULL, 0, 0, 0 },
928     { "sret", rv_codec_none, rv_fmt_none, NULL, 0, 0, 0 },
929     { "hret", rv_codec_none, rv_fmt_none, NULL, 0, 0, 0 },
930     { "mret", rv_codec_none, rv_fmt_none, NULL, 0, 0, 0 },
931     { "dret", rv_codec_none, rv_fmt_none, NULL, 0, 0, 0 },
932     { "sfence.vm", rv_codec_r, rv_fmt_rs1, NULL, 0, 0, 0 },
933     { "sfence.vma", rv_codec_r, rv_fmt_rs1_rs2, NULL, 0, 0, 0 },
934     { "wfi", rv_codec_none, rv_fmt_none, NULL, 0, 0, 0 },
935     { "csrrw", rv_codec_i_csr, rv_fmt_rd_csr_rs1, rvcp_csrrw, 0, 0, 0 },
936     { "csrrs", rv_codec_i_csr, rv_fmt_rd_csr_rs1, rvcp_csrrs, 0, 0, 0 },
937     { "csrrc", rv_codec_i_csr, rv_fmt_rd_csr_rs1, NULL, 0, 0, 0 },
938     { "csrrwi", rv_codec_i_csr, rv_fmt_rd_csr_zimm, rvcp_csrrwi, 0, 0, 0 },
939     { "csrrsi", rv_codec_i_csr, rv_fmt_rd_csr_zimm, NULL, 0, 0, 0 },
940     { "csrrci", rv_codec_i_csr, rv_fmt_rd_csr_zimm, NULL, 0, 0, 0 },
941     { "flw", rv_codec_i, rv_fmt_frd_offset_rs1, NULL, 0, 0, 0 },
942     { "fsw", rv_codec_s, rv_fmt_frs2_offset_rs1, NULL, 0, 0, 0 },
943     { "fmadd.s", rv_codec_r4_m, rv_fmt_rm_frd_frs1_frs2_frs3, NULL, 0, 0, 0 },
944     { "fmsub.s", rv_codec_r4_m, rv_fmt_rm_frd_frs1_frs2_frs3, NULL, 0, 0, 0 },
945     { "fnmsub.s", rv_codec_r4_m, rv_fmt_rm_frd_frs1_frs2_frs3, NULL, 0, 0, 0 },
946     { "fnmadd.s", rv_codec_r4_m, rv_fmt_rm_frd_frs1_frs2_frs3, NULL, 0, 0, 0 },
947     { "fadd.s", rv_codec_r_m, rv_fmt_rm_frd_frs1_frs2, NULL, 0, 0, 0 },
948     { "fsub.s", rv_codec_r_m, rv_fmt_rm_frd_frs1_frs2, NULL, 0, 0, 0 },
949     { "fmul.s", rv_codec_r_m, rv_fmt_rm_frd_frs1_frs2, NULL, 0, 0, 0 },
950     { "fdiv.s", rv_codec_r_m, rv_fmt_rm_frd_frs1_frs2, NULL, 0, 0, 0 },
951     { "fsgnj.s", rv_codec_r, rv_fmt_frd_frs1_frs2, rvcp_fsgnj_s, 0, 0, 0 },
952     { "fsgnjn.s", rv_codec_r, rv_fmt_frd_frs1_frs2, rvcp_fsgnjn_s, 0, 0, 0 },
953     { "fsgnjx.s", rv_codec_r, rv_fmt_frd_frs1_frs2, rvcp_fsgnjx_s, 0, 0, 0 },
954     { "fmin.s", rv_codec_r, rv_fmt_frd_frs1_frs2, NULL, 0, 0, 0 },
955     { "fmax.s", rv_codec_r, rv_fmt_frd_frs1_frs2, NULL, 0, 0, 0 },
956     { "fsqrt.s", rv_codec_r_m, rv_fmt_rm_frd_frs1, NULL, 0, 0, 0 },
957     { "fle.s", rv_codec_r, rv_fmt_rd_frs1_frs2, NULL, 0, 0, 0 },
958     { "flt.s", rv_codec_r, rv_fmt_rd_frs1_frs2, NULL, 0, 0, 0 },
959     { "feq.s", rv_codec_r, rv_fmt_rd_frs1_frs2, NULL, 0, 0, 0 },
960     { "fcvt.w.s", rv_codec_r_m, rv_fmt_rm_rd_frs1, NULL, 0, 0, 0 },
961     { "fcvt.wu.s", rv_codec_r_m, rv_fmt_rm_rd_frs1, NULL, 0, 0, 0 },
962     { "fcvt.s.w", rv_codec_r_m, rv_fmt_rm_frd_rs1, NULL, 0, 0, 0 },
963     { "fcvt.s.wu", rv_codec_r_m, rv_fmt_rm_frd_rs1, NULL, 0, 0, 0 },
964     { "fmv.x.s", rv_codec_r, rv_fmt_rd_frs1, NULL, 0, 0, 0 },
965     { "fclass.s", rv_codec_r, rv_fmt_rd_frs1, NULL, 0, 0, 0 },
966     { "fmv.s.x", rv_codec_r, rv_fmt_frd_rs1, NULL, 0, 0, 0 },
967     { "fcvt.l.s", rv_codec_r_m, rv_fmt_rm_rd_frs1, NULL, 0, 0, 0 },
968     { "fcvt.lu.s", rv_codec_r_m, rv_fmt_rm_rd_frs1, NULL, 0, 0, 0 },
969     { "fcvt.s.l", rv_codec_r_m, rv_fmt_rm_frd_rs1, NULL, 0, 0, 0 },
970     { "fcvt.s.lu", rv_codec_r_m, rv_fmt_rm_frd_rs1, NULL, 0, 0, 0 },
971     { "fld", rv_codec_i, rv_fmt_frd_offset_rs1, NULL, 0, 0, 0 },
972     { "fsd", rv_codec_s, rv_fmt_frs2_offset_rs1, NULL, 0, 0, 0 },
973     { "fmadd.d", rv_codec_r4_m, rv_fmt_rm_frd_frs1_frs2_frs3, NULL, 0, 0, 0 },
974     { "fmsub.d", rv_codec_r4_m, rv_fmt_rm_frd_frs1_frs2_frs3, NULL, 0, 0, 0 },
975     { "fnmsub.d", rv_codec_r4_m, rv_fmt_rm_frd_frs1_frs2_frs3, NULL, 0, 0, 0 },
976     { "fnmadd.d", rv_codec_r4_m, rv_fmt_rm_frd_frs1_frs2_frs3, NULL, 0, 0, 0 },
977     { "fadd.d", rv_codec_r_m, rv_fmt_rm_frd_frs1_frs2, NULL, 0, 0, 0 },
978     { "fsub.d", rv_codec_r_m, rv_fmt_rm_frd_frs1_frs2, NULL, 0, 0, 0 },
979     { "fmul.d", rv_codec_r_m, rv_fmt_rm_frd_frs1_frs2, NULL, 0, 0, 0 },
980     { "fdiv.d", rv_codec_r_m, rv_fmt_rm_frd_frs1_frs2, NULL, 0, 0, 0 },
981     { "fsgnj.d", rv_codec_r, rv_fmt_frd_frs1_frs2, rvcp_fsgnj_d, 0, 0, 0 },
982     { "fsgnjn.d", rv_codec_r, rv_fmt_frd_frs1_frs2, rvcp_fsgnjn_d, 0, 0, 0 },
983     { "fsgnjx.d", rv_codec_r, rv_fmt_frd_frs1_frs2, rvcp_fsgnjx_d, 0, 0, 0 },
984     { "fmin.d", rv_codec_r, rv_fmt_frd_frs1_frs2, NULL, 0, 0, 0 },
985     { "fmax.d", rv_codec_r, rv_fmt_frd_frs1_frs2, NULL, 0, 0, 0 },
986     { "fcvt.s.d", rv_codec_r_m, rv_fmt_rm_frd_frs1, NULL, 0, 0, 0 },
987     { "fcvt.d.s", rv_codec_r_m, rv_fmt_rm_frd_frs1, NULL, 0, 0, 0 },
988     { "fsqrt.d", rv_codec_r_m, rv_fmt_rm_frd_frs1, NULL, 0, 0, 0 },
989     { "fle.d", rv_codec_r, rv_fmt_rd_frs1_frs2, NULL, 0, 0, 0 },
990     { "flt.d", rv_codec_r, rv_fmt_rd_frs1_frs2, NULL, 0, 0, 0 },
991     { "feq.d", rv_codec_r, rv_fmt_rd_frs1_frs2, NULL, 0, 0, 0 },
992     { "fcvt.w.d", rv_codec_r_m, rv_fmt_rm_rd_frs1, NULL, 0, 0, 0 },
993     { "fcvt.wu.d", rv_codec_r_m, rv_fmt_rm_rd_frs1, NULL, 0, 0, 0 },
994     { "fcvt.d.w", rv_codec_r_m, rv_fmt_rm_frd_rs1, NULL, 0, 0, 0 },
995     { "fcvt.d.wu", rv_codec_r_m, rv_fmt_rm_frd_rs1, NULL, 0, 0, 0 },
996     { "fclass.d", rv_codec_r, rv_fmt_rd_frs1, NULL, 0, 0, 0 },
997     { "fcvt.l.d", rv_codec_r_m, rv_fmt_rm_rd_frs1, NULL, 0, 0, 0 },
998     { "fcvt.lu.d", rv_codec_r_m, rv_fmt_rm_rd_frs1, NULL, 0, 0, 0 },
999     { "fmv.x.d", rv_codec_r, rv_fmt_rd_frs1, NULL, 0, 0, 0 },
1000     { "fcvt.d.l", rv_codec_r_m, rv_fmt_rm_frd_rs1, NULL, 0, 0, 0 },
1001     { "fcvt.d.lu", rv_codec_r_m, rv_fmt_rm_frd_rs1, NULL, 0, 0, 0 },
1002     { "fmv.d.x", rv_codec_r, rv_fmt_frd_rs1, NULL, 0, 0, 0 },
1003     { "flq", rv_codec_i, rv_fmt_frd_offset_rs1, NULL, 0, 0, 0 },
1004     { "fsq", rv_codec_s, rv_fmt_frs2_offset_rs1, NULL, 0, 0, 0 },
1005     { "fmadd.q", rv_codec_r4_m, rv_fmt_rm_frd_frs1_frs2_frs3, NULL, 0, 0, 0 },
1006     { "fmsub.q", rv_codec_r4_m, rv_fmt_rm_frd_frs1_frs2_frs3, NULL, 0, 0, 0 },
1007     { "fnmsub.q", rv_codec_r4_m, rv_fmt_rm_frd_frs1_frs2_frs3, NULL, 0, 0, 0 },
1008     { "fnmadd.q", rv_codec_r4_m, rv_fmt_rm_frd_frs1_frs2_frs3, NULL, 0, 0, 0 },
1009     { "fadd.q", rv_codec_r_m, rv_fmt_rm_frd_frs1_frs2, NULL, 0, 0, 0 },
1010     { "fsub.q", rv_codec_r_m, rv_fmt_rm_frd_frs1_frs2, NULL, 0, 0, 0 },
1011     { "fmul.q", rv_codec_r_m, rv_fmt_rm_frd_frs1_frs2, NULL, 0, 0, 0 },
1012     { "fdiv.q", rv_codec_r_m, rv_fmt_rm_frd_frs1_frs2, NULL, 0, 0, 0 },
1013     { "fsgnj.q", rv_codec_r, rv_fmt_frd_frs1_frs2, rvcp_fsgnj_q, 0, 0, 0 },
1014     { "fsgnjn.q", rv_codec_r, rv_fmt_frd_frs1_frs2, rvcp_fsgnjn_q, 0, 0, 0 },
1015     { "fsgnjx.q", rv_codec_r, rv_fmt_frd_frs1_frs2, rvcp_fsgnjx_q, 0, 0, 0 },
1016     { "fmin.q", rv_codec_r, rv_fmt_frd_frs1_frs2, NULL, 0, 0, 0 },
1017     { "fmax.q", rv_codec_r, rv_fmt_frd_frs1_frs2, NULL, 0, 0, 0 },
1018     { "fcvt.s.q", rv_codec_r_m, rv_fmt_rm_frd_frs1, NULL, 0, 0, 0 },
1019     { "fcvt.q.s", rv_codec_r_m, rv_fmt_rm_frd_frs1, NULL, 0, 0, 0 },
1020     { "fcvt.d.q", rv_codec_r_m, rv_fmt_rm_frd_frs1, NULL, 0, 0, 0 },
1021     { "fcvt.q.d", rv_codec_r_m, rv_fmt_rm_frd_frs1, NULL, 0, 0, 0 },
1022     { "fsqrt.q", rv_codec_r_m, rv_fmt_rm_frd_frs1, NULL, 0, 0, 0 },
1023     { "fle.q", rv_codec_r, rv_fmt_rd_frs1_frs2, NULL, 0, 0, 0 },
1024     { "flt.q", rv_codec_r, rv_fmt_rd_frs1_frs2, NULL, 0, 0, 0 },
1025     { "feq.q", rv_codec_r, rv_fmt_rd_frs1_frs2, NULL, 0, 0, 0 },
1026     { "fcvt.w.q", rv_codec_r_m, rv_fmt_rm_rd_frs1, NULL, 0, 0, 0 },
1027     { "fcvt.wu.q", rv_codec_r_m, rv_fmt_rm_rd_frs1, NULL, 0, 0, 0 },
1028     { "fcvt.q.w", rv_codec_r_m, rv_fmt_rm_frd_rs1, NULL, 0, 0, 0 },
1029     { "fcvt.q.wu", rv_codec_r_m, rv_fmt_rm_frd_rs1, NULL, 0, 0, 0 },
1030     { "fclass.q", rv_codec_r, rv_fmt_rd_frs1, NULL, 0, 0, 0 },
1031     { "fcvt.l.q", rv_codec_r_m, rv_fmt_rm_rd_frs1, NULL, 0, 0, 0 },
1032     { "fcvt.lu.q", rv_codec_r_m, rv_fmt_rm_rd_frs1, NULL, 0, 0, 0 },
1033     { "fcvt.q.l", rv_codec_r_m, rv_fmt_rm_frd_rs1, NULL, 0, 0, 0 },
1034     { "fcvt.q.lu", rv_codec_r_m, rv_fmt_rm_frd_rs1, NULL, 0, 0, 0 },
1035     { "fmv.x.q", rv_codec_r, rv_fmt_rd_frs1, NULL, 0, 0, 0 },
1036     { "fmv.q.x", rv_codec_r, rv_fmt_frd_rs1, NULL, 0, 0, 0 },
1037     { "c.addi4spn", rv_codec_ciw_4spn, rv_fmt_rd_rs1_imm, NULL, rv_op_addi, rv_op_addi, rv_op_addi },
1038     { "c.fld", rv_codec_cl_ld, rv_fmt_frd_offset_rs1, NULL, rv_op_fld, rv_op_fld, 0 },
1039     { "c.lw", rv_codec_cl_lw, rv_fmt_rd_offset_rs1, NULL, rv_op_lw, rv_op_lw, rv_op_lw },
1040     { "c.flw", rv_codec_cl_lw, rv_fmt_frd_offset_rs1, NULL, rv_op_flw, 0, 0 },
1041     { "c.fsd", rv_codec_cs_sd, rv_fmt_frs2_offset_rs1, NULL, rv_op_fsd, rv_op_fsd, 0 },
1042     { "c.sw", rv_codec_cs_sw, rv_fmt_rs2_offset_rs1, NULL, rv_op_sw, rv_op_sw, rv_op_sw },
1043     { "c.fsw", rv_codec_cs_sw, rv_fmt_frs2_offset_rs1, NULL, rv_op_fsw, 0, 0 },
1044     { "c.nop", rv_codec_ci_none, rv_fmt_none, NULL, rv_op_addi, rv_op_addi, rv_op_addi },
1045     { "c.addi", rv_codec_ci, rv_fmt_rd_rs1_imm, NULL, rv_op_addi, rv_op_addi, rv_op_addi },
1046     { "c.jal", rv_codec_cj_jal, rv_fmt_rd_offset, NULL, rv_op_jal, 0, 0 },
1047     { "c.li", rv_codec_ci_li, rv_fmt_rd_rs1_imm, NULL, rv_op_addi, rv_op_addi, rv_op_addi },
1048     { "c.addi16sp", rv_codec_ci_16sp, rv_fmt_rd_rs1_imm, NULL, rv_op_addi, rv_op_addi, rv_op_addi },
1049     { "c.lui", rv_codec_ci_lui, rv_fmt_rd_imm, NULL, rv_op_lui, rv_op_lui, rv_op_lui },
1050     { "c.srli", rv_codec_cb_sh6, rv_fmt_rd_rs1_imm, NULL, rv_op_srli, rv_op_srli, rv_op_srli },
1051     { "c.srai", rv_codec_cb_sh6, rv_fmt_rd_rs1_imm, NULL, rv_op_srai, rv_op_srai, rv_op_srai },
1052     { "c.andi", rv_codec_cb_imm, rv_fmt_rd_rs1_imm, NULL, rv_op_andi, rv_op_andi, rv_op_andi },
1053     { "c.sub", rv_codec_cs, rv_fmt_rd_rs1_rs2, NULL, rv_op_sub, rv_op_sub, rv_op_sub },
1054     { "c.xor", rv_codec_cs, rv_fmt_rd_rs1_rs2, NULL, rv_op_xor, rv_op_xor, rv_op_xor },
1055     { "c.or", rv_codec_cs, rv_fmt_rd_rs1_rs2, NULL, rv_op_or, rv_op_or, rv_op_or },
1056     { "c.and", rv_codec_cs, rv_fmt_rd_rs1_rs2, NULL, rv_op_and, rv_op_and, rv_op_and },
1057     { "c.subw", rv_codec_cs, rv_fmt_rd_rs1_rs2, NULL, rv_op_subw, rv_op_subw, rv_op_subw },
1058     { "c.addw", rv_codec_cs, rv_fmt_rd_rs1_rs2, NULL, rv_op_addw, rv_op_addw, rv_op_addw },
1059     { "c.j", rv_codec_cj, rv_fmt_rd_offset, NULL, rv_op_jal, rv_op_jal, rv_op_jal },
1060     { "c.beqz", rv_codec_cb, rv_fmt_rs1_rs2_offset, NULL, rv_op_beq, rv_op_beq, rv_op_beq },
1061     { "c.bnez", rv_codec_cb, rv_fmt_rs1_rs2_offset, NULL, rv_op_bne, rv_op_bne, rv_op_bne },
1062     { "c.slli", rv_codec_ci_sh6, rv_fmt_rd_rs1_imm, NULL, rv_op_slli, rv_op_slli, rv_op_slli },
1063     { "c.fldsp", rv_codec_ci_ldsp, rv_fmt_frd_offset_rs1, NULL, rv_op_fld, rv_op_fld, rv_op_fld },
1064     { "c.lwsp", rv_codec_ci_lwsp, rv_fmt_rd_offset_rs1, NULL, rv_op_lw, rv_op_lw, rv_op_lw },
1065     { "c.flwsp", rv_codec_ci_lwsp, rv_fmt_frd_offset_rs1, NULL, rv_op_flw, 0, 0 },
1066     { "c.jr", rv_codec_cr_jr, rv_fmt_rd_rs1_offset, NULL, rv_op_jalr, rv_op_jalr, rv_op_jalr },
1067     { "c.mv", rv_codec_cr_mv, rv_fmt_rd_rs1_rs2, NULL, rv_op_addi, rv_op_addi, rv_op_addi },
1068     { "c.ebreak", rv_codec_ci_none, rv_fmt_none, NULL, rv_op_ebreak, rv_op_ebreak, rv_op_ebreak },
1069     { "c.jalr", rv_codec_cr_jalr, rv_fmt_rd_rs1_offset, NULL, rv_op_jalr, rv_op_jalr, rv_op_jalr },
1070     { "c.add", rv_codec_cr, rv_fmt_rd_rs1_rs2, NULL, rv_op_add, rv_op_add, rv_op_add },
1071     { "c.fsdsp", rv_codec_css_sdsp, rv_fmt_frs2_offset_rs1, NULL, rv_op_fsd, rv_op_fsd, rv_op_fsd },
1072     { "c.swsp", rv_codec_css_swsp, rv_fmt_rs2_offset_rs1, NULL, rv_op_sw, rv_op_sw, rv_op_sw },
1073     { "c.fswsp", rv_codec_css_swsp, rv_fmt_frs2_offset_rs1, NULL, rv_op_fsw, 0, 0 },
1074     { "c.ld", rv_codec_cl_ld, rv_fmt_rd_offset_rs1, NULL, 0, rv_op_ld, rv_op_ld },
1075     { "c.sd", rv_codec_cs_sd, rv_fmt_rs2_offset_rs1, NULL, 0, rv_op_sd, rv_op_sd },
1076     { "c.addiw", rv_codec_ci, rv_fmt_rd_rs1_imm, NULL, 0, rv_op_addiw, rv_op_addiw },
1077     { "c.ldsp", rv_codec_ci_ldsp, rv_fmt_rd_offset_rs1, NULL, 0, rv_op_ld, rv_op_ld },
1078     { "c.sdsp", rv_codec_css_sdsp, rv_fmt_rs2_offset_rs1, NULL, 0, rv_op_sd, rv_op_sd },
1079     { "c.lq", rv_codec_cl_lq, rv_fmt_rd_offset_rs1, NULL, 0, 0, rv_op_lq },
1080     { "c.sq", rv_codec_cs_sq, rv_fmt_rs2_offset_rs1, NULL, 0, 0, rv_op_sq },
1081     { "c.lqsp", rv_codec_ci_lqsp, rv_fmt_rd_offset_rs1, NULL, 0, 0, rv_op_lq },
1082     { "c.sqsp", rv_codec_css_sqsp, rv_fmt_rs2_offset_rs1, NULL, 0, 0, rv_op_sq },
1083     { "nop", rv_codec_i, rv_fmt_none, NULL, 0, 0, 0 },
1084     { "mv", rv_codec_i, rv_fmt_rd_rs1, NULL, 0, 0, 0 },
1085     { "not", rv_codec_i, rv_fmt_rd_rs1, NULL, 0, 0, 0 },
1086     { "neg", rv_codec_r, rv_fmt_rd_rs2, NULL, 0, 0, 0 },
1087     { "negw", rv_codec_r, rv_fmt_rd_rs2, NULL, 0, 0, 0 },
1088     { "sext.w", rv_codec_i, rv_fmt_rd_rs1, NULL, 0, 0, 0 },
1089     { "seqz", rv_codec_i, rv_fmt_rd_rs1, NULL, 0, 0, 0 },
1090     { "snez", rv_codec_r, rv_fmt_rd_rs2, NULL, 0, 0, 0 },
1091     { "sltz", rv_codec_r, rv_fmt_rd_rs1, NULL, 0, 0, 0 },
1092     { "sgtz", rv_codec_r, rv_fmt_rd_rs2, NULL, 0, 0, 0 },
1093     { "fmv.s", rv_codec_r, rv_fmt_rd_rs1, NULL, 0, 0, 0 },
1094     { "fabs.s", rv_codec_r, rv_fmt_rd_rs1, NULL, 0, 0, 0 },
1095     { "fneg.s", rv_codec_r, rv_fmt_rd_rs1, NULL, 0, 0, 0 },
1096     { "fmv.d", rv_codec_r, rv_fmt_rd_rs1, NULL, 0, 0, 0 },
1097     { "fabs.d", rv_codec_r, rv_fmt_rd_rs1, NULL, 0, 0, 0 },
1098     { "fneg.d", rv_codec_r, rv_fmt_rd_rs1, NULL, 0, 0, 0 },
1099     { "fmv.q", rv_codec_r, rv_fmt_rd_rs1, NULL, 0, 0, 0 },
1100     { "fabs.q", rv_codec_r, rv_fmt_rd_rs1, NULL, 0, 0, 0 },
1101     { "fneg.q", rv_codec_r, rv_fmt_rd_rs1, NULL, 0, 0, 0 },
1102     { "beqz", rv_codec_sb, rv_fmt_rs1_offset, NULL, 0, 0, 0 },
1103     { "bnez", rv_codec_sb, rv_fmt_rs1_offset, NULL, 0, 0, 0 },
1104     { "blez", rv_codec_sb, rv_fmt_rs2_offset, NULL, 0, 0, 0 },
1105     { "bgez", rv_codec_sb, rv_fmt_rs1_offset, NULL, 0, 0, 0 },
1106     { "bltz", rv_codec_sb, rv_fmt_rs1_offset, NULL, 0, 0, 0 },
1107     { "bgtz", rv_codec_sb, rv_fmt_rs2_offset, NULL, 0, 0, 0 },
1108     { "ble", rv_codec_sb, rv_fmt_rs2_rs1_offset, NULL, 0, 0, 0 },
1109     { "bleu", rv_codec_sb, rv_fmt_rs2_rs1_offset, NULL, 0, 0, 0 },
1110     { "bgt", rv_codec_sb, rv_fmt_rs2_rs1_offset, NULL, 0, 0, 0 },
1111     { "bgtu", rv_codec_sb, rv_fmt_rs2_rs1_offset, NULL, 0, 0, 0 },
1112     { "j", rv_codec_uj, rv_fmt_offset, NULL, 0, 0, 0 },
1113     { "ret", rv_codec_i, rv_fmt_none, NULL, 0, 0, 0 },
1114     { "jr", rv_codec_i, rv_fmt_rs1, NULL, 0, 0, 0 },
1115     { "rdcycle", rv_codec_i_csr, rv_fmt_rd, NULL, 0, 0, 0 },
1116     { "rdtime", rv_codec_i_csr, rv_fmt_rd, NULL, 0, 0, 0 },
1117     { "rdinstret", rv_codec_i_csr, rv_fmt_rd, NULL, 0, 0, 0 },
1118     { "rdcycleh", rv_codec_i_csr, rv_fmt_rd, NULL, 0, 0, 0 },
1119     { "rdtimeh", rv_codec_i_csr, rv_fmt_rd, NULL, 0, 0, 0 },
1120     { "rdinstreth", rv_codec_i_csr, rv_fmt_rd, NULL, 0, 0, 0 },
1121     { "frcsr", rv_codec_i_csr, rv_fmt_rd, NULL, 0, 0, 0 },
1122     { "frrm", rv_codec_i_csr, rv_fmt_rd, NULL, 0, 0, 0 },
1123     { "frflags", rv_codec_i_csr, rv_fmt_rd, NULL, 0, 0, 0 },
1124     { "fscsr", rv_codec_i_csr, rv_fmt_rd_rs1, NULL, 0, 0, 0 },
1125     { "fsrm", rv_codec_i_csr, rv_fmt_rd_rs1, NULL, 0, 0, 0 },
1126     { "fsflags", rv_codec_i_csr, rv_fmt_rd_rs1, NULL, 0, 0, 0 },
1127     { "fsrmi", rv_codec_i_csr, rv_fmt_rd_zimm, NULL, 0, 0, 0 },
1128     { "fsflagsi", rv_codec_i_csr, rv_fmt_rd_zimm, NULL, 0, 0, 0 },
1129 };
1130 
1131 /* CSR names */
1132 
1133 static const char *csr_name(int csrno)
1134 {
1135     switch (csrno) {
1136     case 0x0000: return "ustatus";
1137     case 0x0001: return "fflags";
1138     case 0x0002: return "frm";
1139     case 0x0003: return "fcsr";
1140     case 0x0004: return "uie";
1141     case 0x0005: return "utvec";
1142     case 0x0040: return "uscratch";
1143     case 0x0041: return "uepc";
1144     case 0x0042: return "ucause";
1145     case 0x0043: return "utval";
1146     case 0x0044: return "uip";
1147     case 0x0100: return "sstatus";
1148     case 0x0102: return "sedeleg";
1149     case 0x0103: return "sideleg";
1150     case 0x0104: return "sie";
1151     case 0x0105: return "stvec";
1152     case 0x0106: return "scounteren";
1153     case 0x0140: return "sscratch";
1154     case 0x0141: return "sepc";
1155     case 0x0142: return "scause";
1156     case 0x0143: return "stval";
1157     case 0x0144: return "sip";
1158     case 0x0180: return "satp";
1159     case 0x0200: return "hstatus";
1160     case 0x0202: return "hedeleg";
1161     case 0x0203: return "hideleg";
1162     case 0x0204: return "hie";
1163     case 0x0205: return "htvec";
1164     case 0x0240: return "hscratch";
1165     case 0x0241: return "hepc";
1166     case 0x0242: return "hcause";
1167     case 0x0243: return "hbadaddr";
1168     case 0x0244: return "hip";
1169     case 0x0300: return "mstatus";
1170     case 0x0301: return "misa";
1171     case 0x0302: return "medeleg";
1172     case 0x0303: return "mideleg";
1173     case 0x0304: return "mie";
1174     case 0x0305: return "mtvec";
1175     case 0x0306: return "mcounteren";
1176     case 0x0320: return "mucounteren";
1177     case 0x0321: return "mscounteren";
1178     case 0x0322: return "mhcounteren";
1179     case 0x0323: return "mhpmevent3";
1180     case 0x0324: return "mhpmevent4";
1181     case 0x0325: return "mhpmevent5";
1182     case 0x0326: return "mhpmevent6";
1183     case 0x0327: return "mhpmevent7";
1184     case 0x0328: return "mhpmevent8";
1185     case 0x0329: return "mhpmevent9";
1186     case 0x032a: return "mhpmevent10";
1187     case 0x032b: return "mhpmevent11";
1188     case 0x032c: return "mhpmevent12";
1189     case 0x032d: return "mhpmevent13";
1190     case 0x032e: return "mhpmevent14";
1191     case 0x032f: return "mhpmevent15";
1192     case 0x0330: return "mhpmevent16";
1193     case 0x0331: return "mhpmevent17";
1194     case 0x0332: return "mhpmevent18";
1195     case 0x0333: return "mhpmevent19";
1196     case 0x0334: return "mhpmevent20";
1197     case 0x0335: return "mhpmevent21";
1198     case 0x0336: return "mhpmevent22";
1199     case 0x0337: return "mhpmevent23";
1200     case 0x0338: return "mhpmevent24";
1201     case 0x0339: return "mhpmevent25";
1202     case 0x033a: return "mhpmevent26";
1203     case 0x033b: return "mhpmevent27";
1204     case 0x033c: return "mhpmevent28";
1205     case 0x033d: return "mhpmevent29";
1206     case 0x033e: return "mhpmevent30";
1207     case 0x033f: return "mhpmevent31";
1208     case 0x0340: return "mscratch";
1209     case 0x0341: return "mepc";
1210     case 0x0342: return "mcause";
1211     case 0x0343: return "mtval";
1212     case 0x0344: return "mip";
1213     case 0x0380: return "mbase";
1214     case 0x0381: return "mbound";
1215     case 0x0382: return "mibase";
1216     case 0x0383: return "mibound";
1217     case 0x0384: return "mdbase";
1218     case 0x0385: return "mdbound";
1219     case 0x03a0: return "pmpcfg3";
1220     case 0x03b0: return "pmpaddr0";
1221     case 0x03b1: return "pmpaddr1";
1222     case 0x03b2: return "pmpaddr2";
1223     case 0x03b3: return "pmpaddr3";
1224     case 0x03b4: return "pmpaddr4";
1225     case 0x03b5: return "pmpaddr5";
1226     case 0x03b6: return "pmpaddr6";
1227     case 0x03b7: return "pmpaddr7";
1228     case 0x03b8: return "pmpaddr8";
1229     case 0x03b9: return "pmpaddr9";
1230     case 0x03ba: return "pmpaddr10";
1231     case 0x03bb: return "pmpaddr11";
1232     case 0x03bc: return "pmpaddr12";
1233     case 0x03bd: return "pmpaddr14";
1234     case 0x03be: return "pmpaddr13";
1235     case 0x03bf: return "pmpaddr15";
1236     case 0x0780: return "mtohost";
1237     case 0x0781: return "mfromhost";
1238     case 0x0782: return "mreset";
1239     case 0x0783: return "mipi";
1240     case 0x0784: return "miobase";
1241     case 0x07a0: return "tselect";
1242     case 0x07a1: return "tdata1";
1243     case 0x07a2: return "tdata2";
1244     case 0x07a3: return "tdata3";
1245     case 0x07b0: return "dcsr";
1246     case 0x07b1: return "dpc";
1247     case 0x07b2: return "dscratch";
1248     case 0x0b00: return "mcycle";
1249     case 0x0b01: return "mtime";
1250     case 0x0b02: return "minstret";
1251     case 0x0b03: return "mhpmcounter3";
1252     case 0x0b04: return "mhpmcounter4";
1253     case 0x0b05: return "mhpmcounter5";
1254     case 0x0b06: return "mhpmcounter6";
1255     case 0x0b07: return "mhpmcounter7";
1256     case 0x0b08: return "mhpmcounter8";
1257     case 0x0b09: return "mhpmcounter9";
1258     case 0x0b0a: return "mhpmcounter10";
1259     case 0x0b0b: return "mhpmcounter11";
1260     case 0x0b0c: return "mhpmcounter12";
1261     case 0x0b0d: return "mhpmcounter13";
1262     case 0x0b0e: return "mhpmcounter14";
1263     case 0x0b0f: return "mhpmcounter15";
1264     case 0x0b10: return "mhpmcounter16";
1265     case 0x0b11: return "mhpmcounter17";
1266     case 0x0b12: return "mhpmcounter18";
1267     case 0x0b13: return "mhpmcounter19";
1268     case 0x0b14: return "mhpmcounter20";
1269     case 0x0b15: return "mhpmcounter21";
1270     case 0x0b16: return "mhpmcounter22";
1271     case 0x0b17: return "mhpmcounter23";
1272     case 0x0b18: return "mhpmcounter24";
1273     case 0x0b19: return "mhpmcounter25";
1274     case 0x0b1a: return "mhpmcounter26";
1275     case 0x0b1b: return "mhpmcounter27";
1276     case 0x0b1c: return "mhpmcounter28";
1277     case 0x0b1d: return "mhpmcounter29";
1278     case 0x0b1e: return "mhpmcounter30";
1279     case 0x0b1f: return "mhpmcounter31";
1280     case 0x0b80: return "mcycleh";
1281     case 0x0b81: return "mtimeh";
1282     case 0x0b82: return "minstreth";
1283     case 0x0b83: return "mhpmcounter3h";
1284     case 0x0b84: return "mhpmcounter4h";
1285     case 0x0b85: return "mhpmcounter5h";
1286     case 0x0b86: return "mhpmcounter6h";
1287     case 0x0b87: return "mhpmcounter7h";
1288     case 0x0b88: return "mhpmcounter8h";
1289     case 0x0b89: return "mhpmcounter9h";
1290     case 0x0b8a: return "mhpmcounter10h";
1291     case 0x0b8b: return "mhpmcounter11h";
1292     case 0x0b8c: return "mhpmcounter12h";
1293     case 0x0b8d: return "mhpmcounter13h";
1294     case 0x0b8e: return "mhpmcounter14h";
1295     case 0x0b8f: return "mhpmcounter15h";
1296     case 0x0b90: return "mhpmcounter16h";
1297     case 0x0b91: return "mhpmcounter17h";
1298     case 0x0b92: return "mhpmcounter18h";
1299     case 0x0b93: return "mhpmcounter19h";
1300     case 0x0b94: return "mhpmcounter20h";
1301     case 0x0b95: return "mhpmcounter21h";
1302     case 0x0b96: return "mhpmcounter22h";
1303     case 0x0b97: return "mhpmcounter23h";
1304     case 0x0b98: return "mhpmcounter24h";
1305     case 0x0b99: return "mhpmcounter25h";
1306     case 0x0b9a: return "mhpmcounter26h";
1307     case 0x0b9b: return "mhpmcounter27h";
1308     case 0x0b9c: return "mhpmcounter28h";
1309     case 0x0b9d: return "mhpmcounter29h";
1310     case 0x0b9e: return "mhpmcounter30h";
1311     case 0x0b9f: return "mhpmcounter31h";
1312     case 0x0c00: return "cycle";
1313     case 0x0c01: return "time";
1314     case 0x0c02: return "instret";
1315     case 0x0c80: return "cycleh";
1316     case 0x0c81: return "timeh";
1317     case 0x0c82: return "instreth";
1318     case 0x0d00: return "scycle";
1319     case 0x0d01: return "stime";
1320     case 0x0d02: return "sinstret";
1321     case 0x0d80: return "scycleh";
1322     case 0x0d81: return "stimeh";
1323     case 0x0d82: return "sinstreth";
1324     case 0x0e00: return "hcycle";
1325     case 0x0e01: return "htime";
1326     case 0x0e02: return "hinstret";
1327     case 0x0e80: return "hcycleh";
1328     case 0x0e81: return "htimeh";
1329     case 0x0e82: return "hinstreth";
1330     case 0x0f11: return "mvendorid";
1331     case 0x0f12: return "marchid";
1332     case 0x0f13: return "mimpid";
1333     case 0x0f14: return "mhartid";
1334     default: return NULL;
1335     }
1336 }
1337 
1338 /* decode opcode */
1339 
1340 static void decode_inst_opcode(rv_decode *dec, rv_isa isa)
1341 {
1342     rv_inst inst = dec->inst;
1343     rv_opcode op = rv_op_illegal;
1344     switch (((inst >> 0) & 0b11)) {
1345     case 0:
1346         switch (((inst >> 13) & 0b111)) {
1347         case 0: op = rv_op_c_addi4spn; break;
1348         case 1:
1349             if (isa == rv128) {
1350                 op = rv_op_c_lq;
1351             } else {
1352                 op = rv_op_c_fld;
1353             }
1354             break;
1355         case 2: op = rv_op_c_lw; break;
1356         case 3:
1357             if (isa == rv32) {
1358                 op = rv_op_c_flw;
1359             } else {
1360                 op = rv_op_c_ld;
1361             }
1362             break;
1363         case 5:
1364             if (isa == rv128) {
1365                 op = rv_op_c_sq;
1366             } else {
1367                 op = rv_op_c_fsd;
1368             }
1369             break;
1370         case 6: op = rv_op_c_sw; break;
1371         case 7:
1372             if (isa == rv32) {
1373                 op = rv_op_c_fsw;
1374             } else {
1375                 op = rv_op_c_sd;
1376             }
1377             break;
1378         }
1379         break;
1380     case 1:
1381         switch (((inst >> 13) & 0b111)) {
1382         case 0:
1383             switch (((inst >> 2) & 0b11111111111)) {
1384             case 0: op = rv_op_c_nop; break;
1385             default: op = rv_op_c_addi; break;
1386             }
1387             break;
1388         case 1:
1389             if (isa == rv32) {
1390                 op = rv_op_c_jal;
1391             } else {
1392                 op = rv_op_c_addiw;
1393             }
1394             break;
1395         case 2: op = rv_op_c_li; break;
1396         case 3:
1397             switch (((inst >> 7) & 0b11111)) {
1398             case 2: op = rv_op_c_addi16sp; break;
1399             default: op = rv_op_c_lui; break;
1400             }
1401             break;
1402         case 4:
1403             switch (((inst >> 10) & 0b11)) {
1404             case 0:
1405                 op = rv_op_c_srli;
1406                 break;
1407             case 1:
1408                 op = rv_op_c_srai;
1409                 break;
1410             case 2: op = rv_op_c_andi; break;
1411             case 3:
1412                 switch (((inst >> 10) & 0b100) | ((inst >> 5) & 0b011)) {
1413                 case 0: op = rv_op_c_sub; break;
1414                 case 1: op = rv_op_c_xor; break;
1415                 case 2: op = rv_op_c_or; break;
1416                 case 3: op = rv_op_c_and; break;
1417                 case 4: op = rv_op_c_subw; break;
1418                 case 5: op = rv_op_c_addw; break;
1419                 }
1420                 break;
1421             }
1422             break;
1423         case 5: op = rv_op_c_j; break;
1424         case 6: op = rv_op_c_beqz; break;
1425         case 7: op = rv_op_c_bnez; break;
1426         }
1427         break;
1428     case 2:
1429         switch (((inst >> 13) & 0b111)) {
1430         case 0:
1431             op = rv_op_c_slli;
1432             break;
1433         case 1:
1434             if (isa == rv128) {
1435                 op = rv_op_c_lqsp;
1436             } else {
1437                 op = rv_op_c_fldsp;
1438             }
1439             break;
1440         case 2: op = rv_op_c_lwsp; break;
1441         case 3:
1442             if (isa == rv32) {
1443                 op = rv_op_c_flwsp;
1444             } else {
1445                 op = rv_op_c_ldsp;
1446             }
1447             break;
1448         case 4:
1449             switch (((inst >> 12) & 0b1)) {
1450             case 0:
1451                 switch (((inst >> 2) & 0b11111)) {
1452                 case 0: op = rv_op_c_jr; break;
1453                 default: op = rv_op_c_mv; break;
1454                 }
1455                 break;
1456             case 1:
1457                 switch (((inst >> 2) & 0b11111)) {
1458                 case 0:
1459                     switch (((inst >> 7) & 0b11111)) {
1460                     case 0: op = rv_op_c_ebreak; break;
1461                     default: op = rv_op_c_jalr; break;
1462                     }
1463                     break;
1464                 default: op = rv_op_c_add; break;
1465                 }
1466                 break;
1467             }
1468             break;
1469         case 5:
1470             if (isa == rv128) {
1471                 op = rv_op_c_sqsp;
1472             } else {
1473                 op = rv_op_c_fsdsp;
1474             }
1475             break;
1476         case 6: op = rv_op_c_swsp; break;
1477         case 7:
1478             if (isa == rv32) {
1479                 op = rv_op_c_fswsp;
1480             } else {
1481                 op = rv_op_c_sdsp;
1482             }
1483             break;
1484         }
1485         break;
1486     case 3:
1487         switch (((inst >> 2) & 0b11111)) {
1488         case 0:
1489             switch (((inst >> 12) & 0b111)) {
1490             case 0: op = rv_op_lb; break;
1491             case 1: op = rv_op_lh; break;
1492             case 2: op = rv_op_lw; break;
1493             case 3: op = rv_op_ld; break;
1494             case 4: op = rv_op_lbu; break;
1495             case 5: op = rv_op_lhu; break;
1496             case 6: op = rv_op_lwu; break;
1497             case 7: op = rv_op_ldu; break;
1498             }
1499             break;
1500         case 1:
1501             switch (((inst >> 12) & 0b111)) {
1502             case 2: op = rv_op_flw; break;
1503             case 3: op = rv_op_fld; break;
1504             case 4: op = rv_op_flq; break;
1505             }
1506             break;
1507         case 3:
1508             switch (((inst >> 12) & 0b111)) {
1509             case 0: op = rv_op_fence; break;
1510             case 1: op = rv_op_fence_i; break;
1511             case 2: op = rv_op_lq; break;
1512             }
1513             break;
1514         case 4:
1515             switch (((inst >> 12) & 0b111)) {
1516             case 0: op = rv_op_addi; break;
1517             case 1:
1518                 switch (((inst >> 27) & 0b11111)) {
1519                 case 0: op = rv_op_slli; break;
1520                 }
1521                 break;
1522             case 2: op = rv_op_slti; break;
1523             case 3: op = rv_op_sltiu; break;
1524             case 4: op = rv_op_xori; break;
1525             case 5:
1526                 switch (((inst >> 27) & 0b11111)) {
1527                 case 0: op = rv_op_srli; break;
1528                 case 8: op = rv_op_srai; break;
1529                 }
1530                 break;
1531             case 6: op = rv_op_ori; break;
1532             case 7: op = rv_op_andi; break;
1533             }
1534             break;
1535         case 5: op = rv_op_auipc; break;
1536         case 6:
1537             switch (((inst >> 12) & 0b111)) {
1538             case 0: op = rv_op_addiw; break;
1539             case 1:
1540                 switch (((inst >> 25) & 0b1111111)) {
1541                 case 0: op = rv_op_slliw; break;
1542                 }
1543                 break;
1544             case 5:
1545                 switch (((inst >> 25) & 0b1111111)) {
1546                 case 0: op = rv_op_srliw; break;
1547                 case 32: op = rv_op_sraiw; break;
1548                 }
1549                 break;
1550             }
1551             break;
1552         case 8:
1553             switch (((inst >> 12) & 0b111)) {
1554             case 0: op = rv_op_sb; break;
1555             case 1: op = rv_op_sh; break;
1556             case 2: op = rv_op_sw; break;
1557             case 3: op = rv_op_sd; break;
1558             case 4: op = rv_op_sq; break;
1559             }
1560             break;
1561         case 9:
1562             switch (((inst >> 12) & 0b111)) {
1563             case 2: op = rv_op_fsw; break;
1564             case 3: op = rv_op_fsd; break;
1565             case 4: op = rv_op_fsq; break;
1566             }
1567             break;
1568         case 11:
1569             switch (((inst >> 24) & 0b11111000) | ((inst >> 12) & 0b00000111)) {
1570             case 2: op = rv_op_amoadd_w; break;
1571             case 3: op = rv_op_amoadd_d; break;
1572             case 4: op = rv_op_amoadd_q; break;
1573             case 10: op = rv_op_amoswap_w; break;
1574             case 11: op = rv_op_amoswap_d; break;
1575             case 12: op = rv_op_amoswap_q; break;
1576             case 18:
1577                 switch (((inst >> 20) & 0b11111)) {
1578                 case 0: op = rv_op_lr_w; break;
1579                 }
1580                 break;
1581             case 19:
1582                 switch (((inst >> 20) & 0b11111)) {
1583                 case 0: op = rv_op_lr_d; break;
1584                 }
1585                 break;
1586             case 20:
1587                 switch (((inst >> 20) & 0b11111)) {
1588                 case 0: op = rv_op_lr_q; break;
1589                 }
1590                 break;
1591             case 26: op = rv_op_sc_w; break;
1592             case 27: op = rv_op_sc_d; break;
1593             case 28: op = rv_op_sc_q; break;
1594             case 34: op = rv_op_amoxor_w; break;
1595             case 35: op = rv_op_amoxor_d; break;
1596             case 36: op = rv_op_amoxor_q; break;
1597             case 66: op = rv_op_amoor_w; break;
1598             case 67: op = rv_op_amoor_d; break;
1599             case 68: op = rv_op_amoor_q; break;
1600             case 98: op = rv_op_amoand_w; break;
1601             case 99: op = rv_op_amoand_d; break;
1602             case 100: op = rv_op_amoand_q; break;
1603             case 130: op = rv_op_amomin_w; break;
1604             case 131: op = rv_op_amomin_d; break;
1605             case 132: op = rv_op_amomin_q; break;
1606             case 162: op = rv_op_amomax_w; break;
1607             case 163: op = rv_op_amomax_d; break;
1608             case 164: op = rv_op_amomax_q; break;
1609             case 194: op = rv_op_amominu_w; break;
1610             case 195: op = rv_op_amominu_d; break;
1611             case 196: op = rv_op_amominu_q; break;
1612             case 226: op = rv_op_amomaxu_w; break;
1613             case 227: op = rv_op_amomaxu_d; break;
1614             case 228: op = rv_op_amomaxu_q; break;
1615             }
1616             break;
1617         case 12:
1618             switch (((inst >> 22) & 0b1111111000) | ((inst >> 12) & 0b0000000111)) {
1619             case 0: op = rv_op_add; break;
1620             case 1: op = rv_op_sll; break;
1621             case 2: op = rv_op_slt; break;
1622             case 3: op = rv_op_sltu; break;
1623             case 4: op = rv_op_xor; break;
1624             case 5: op = rv_op_srl; break;
1625             case 6: op = rv_op_or; break;
1626             case 7: op = rv_op_and; break;
1627             case 8: op = rv_op_mul; break;
1628             case 9: op = rv_op_mulh; break;
1629             case 10: op = rv_op_mulhsu; break;
1630             case 11: op = rv_op_mulhu; break;
1631             case 12: op = rv_op_div; break;
1632             case 13: op = rv_op_divu; break;
1633             case 14: op = rv_op_rem; break;
1634             case 15: op = rv_op_remu; break;
1635             case 256: op = rv_op_sub; break;
1636             case 261: op = rv_op_sra; break;
1637             }
1638             break;
1639         case 13: op = rv_op_lui; break;
1640         case 14:
1641             switch (((inst >> 22) & 0b1111111000) | ((inst >> 12) & 0b0000000111)) {
1642             case 0: op = rv_op_addw; break;
1643             case 1: op = rv_op_sllw; break;
1644             case 5: op = rv_op_srlw; break;
1645             case 8: op = rv_op_mulw; break;
1646             case 12: op = rv_op_divw; break;
1647             case 13: op = rv_op_divuw; break;
1648             case 14: op = rv_op_remw; break;
1649             case 15: op = rv_op_remuw; break;
1650             case 256: op = rv_op_subw; break;
1651             case 261: op = rv_op_sraw; break;
1652             }
1653             break;
1654         case 16:
1655             switch (((inst >> 25) & 0b11)) {
1656             case 0: op = rv_op_fmadd_s; break;
1657             case 1: op = rv_op_fmadd_d; break;
1658             case 3: op = rv_op_fmadd_q; break;
1659             }
1660             break;
1661         case 17:
1662             switch (((inst >> 25) & 0b11)) {
1663             case 0: op = rv_op_fmsub_s; break;
1664             case 1: op = rv_op_fmsub_d; break;
1665             case 3: op = rv_op_fmsub_q; break;
1666             }
1667             break;
1668         case 18:
1669             switch (((inst >> 25) & 0b11)) {
1670             case 0: op = rv_op_fnmsub_s; break;
1671             case 1: op = rv_op_fnmsub_d; break;
1672             case 3: op = rv_op_fnmsub_q; break;
1673             }
1674             break;
1675         case 19:
1676             switch (((inst >> 25) & 0b11)) {
1677             case 0: op = rv_op_fnmadd_s; break;
1678             case 1: op = rv_op_fnmadd_d; break;
1679             case 3: op = rv_op_fnmadd_q; break;
1680             }
1681             break;
1682         case 20:
1683             switch (((inst >> 25) & 0b1111111)) {
1684             case 0: op = rv_op_fadd_s; break;
1685             case 1: op = rv_op_fadd_d; break;
1686             case 3: op = rv_op_fadd_q; break;
1687             case 4: op = rv_op_fsub_s; break;
1688             case 5: op = rv_op_fsub_d; break;
1689             case 7: op = rv_op_fsub_q; break;
1690             case 8: op = rv_op_fmul_s; break;
1691             case 9: op = rv_op_fmul_d; break;
1692             case 11: op = rv_op_fmul_q; break;
1693             case 12: op = rv_op_fdiv_s; break;
1694             case 13: op = rv_op_fdiv_d; break;
1695             case 15: op = rv_op_fdiv_q; break;
1696             case 16:
1697                 switch (((inst >> 12) & 0b111)) {
1698                 case 0: op = rv_op_fsgnj_s; break;
1699                 case 1: op = rv_op_fsgnjn_s; break;
1700                 case 2: op = rv_op_fsgnjx_s; break;
1701                 }
1702                 break;
1703             case 17:
1704                 switch (((inst >> 12) & 0b111)) {
1705                 case 0: op = rv_op_fsgnj_d; break;
1706                 case 1: op = rv_op_fsgnjn_d; break;
1707                 case 2: op = rv_op_fsgnjx_d; break;
1708                 }
1709                 break;
1710             case 19:
1711                 switch (((inst >> 12) & 0b111)) {
1712                 case 0: op = rv_op_fsgnj_q; break;
1713                 case 1: op = rv_op_fsgnjn_q; break;
1714                 case 2: op = rv_op_fsgnjx_q; break;
1715                 }
1716                 break;
1717             case 20:
1718                 switch (((inst >> 12) & 0b111)) {
1719                 case 0: op = rv_op_fmin_s; break;
1720                 case 1: op = rv_op_fmax_s; break;
1721                 }
1722                 break;
1723             case 21:
1724                 switch (((inst >> 12) & 0b111)) {
1725                 case 0: op = rv_op_fmin_d; break;
1726                 case 1: op = rv_op_fmax_d; break;
1727                 }
1728                 break;
1729             case 23:
1730                 switch (((inst >> 12) & 0b111)) {
1731                 case 0: op = rv_op_fmin_q; break;
1732                 case 1: op = rv_op_fmax_q; break;
1733                 }
1734                 break;
1735             case 32:
1736                 switch (((inst >> 20) & 0b11111)) {
1737                 case 1: op = rv_op_fcvt_s_d; break;
1738                 case 3: op = rv_op_fcvt_s_q; break;
1739                 }
1740                 break;
1741             case 33:
1742                 switch (((inst >> 20) & 0b11111)) {
1743                 case 0: op = rv_op_fcvt_d_s; break;
1744                 case 3: op = rv_op_fcvt_d_q; break;
1745                 }
1746                 break;
1747             case 35:
1748                 switch (((inst >> 20) & 0b11111)) {
1749                 case 0: op = rv_op_fcvt_q_s; break;
1750                 case 1: op = rv_op_fcvt_q_d; break;
1751                 }
1752                 break;
1753             case 44:
1754                 switch (((inst >> 20) & 0b11111)) {
1755                 case 0: op = rv_op_fsqrt_s; break;
1756                 }
1757                 break;
1758             case 45:
1759                 switch (((inst >> 20) & 0b11111)) {
1760                 case 0: op = rv_op_fsqrt_d; break;
1761                 }
1762                 break;
1763             case 47:
1764                 switch (((inst >> 20) & 0b11111)) {
1765                 case 0: op = rv_op_fsqrt_q; break;
1766                 }
1767                 break;
1768             case 80:
1769                 switch (((inst >> 12) & 0b111)) {
1770                 case 0: op = rv_op_fle_s; break;
1771                 case 1: op = rv_op_flt_s; break;
1772                 case 2: op = rv_op_feq_s; break;
1773                 }
1774                 break;
1775             case 81:
1776                 switch (((inst >> 12) & 0b111)) {
1777                 case 0: op = rv_op_fle_d; break;
1778                 case 1: op = rv_op_flt_d; break;
1779                 case 2: op = rv_op_feq_d; break;
1780                 }
1781                 break;
1782             case 83:
1783                 switch (((inst >> 12) & 0b111)) {
1784                 case 0: op = rv_op_fle_q; break;
1785                 case 1: op = rv_op_flt_q; break;
1786                 case 2: op = rv_op_feq_q; break;
1787                 }
1788                 break;
1789             case 96:
1790                 switch (((inst >> 20) & 0b11111)) {
1791                 case 0: op = rv_op_fcvt_w_s; break;
1792                 case 1: op = rv_op_fcvt_wu_s; break;
1793                 case 2: op = rv_op_fcvt_l_s; break;
1794                 case 3: op = rv_op_fcvt_lu_s; break;
1795                 }
1796                 break;
1797             case 97:
1798                 switch (((inst >> 20) & 0b11111)) {
1799                 case 0: op = rv_op_fcvt_w_d; break;
1800                 case 1: op = rv_op_fcvt_wu_d; break;
1801                 case 2: op = rv_op_fcvt_l_d; break;
1802                 case 3: op = rv_op_fcvt_lu_d; break;
1803                 }
1804                 break;
1805             case 99:
1806                 switch (((inst >> 20) & 0b11111)) {
1807                 case 0: op = rv_op_fcvt_w_q; break;
1808                 case 1: op = rv_op_fcvt_wu_q; break;
1809                 case 2: op = rv_op_fcvt_l_q; break;
1810                 case 3: op = rv_op_fcvt_lu_q; break;
1811                 }
1812                 break;
1813             case 104:
1814                 switch (((inst >> 20) & 0b11111)) {
1815                 case 0: op = rv_op_fcvt_s_w; break;
1816                 case 1: op = rv_op_fcvt_s_wu; break;
1817                 case 2: op = rv_op_fcvt_s_l; break;
1818                 case 3: op = rv_op_fcvt_s_lu; break;
1819                 }
1820                 break;
1821             case 105:
1822                 switch (((inst >> 20) & 0b11111)) {
1823                 case 0: op = rv_op_fcvt_d_w; break;
1824                 case 1: op = rv_op_fcvt_d_wu; break;
1825                 case 2: op = rv_op_fcvt_d_l; break;
1826                 case 3: op = rv_op_fcvt_d_lu; break;
1827                 }
1828                 break;
1829             case 107:
1830                 switch (((inst >> 20) & 0b11111)) {
1831                 case 0: op = rv_op_fcvt_q_w; break;
1832                 case 1: op = rv_op_fcvt_q_wu; break;
1833                 case 2: op = rv_op_fcvt_q_l; break;
1834                 case 3: op = rv_op_fcvt_q_lu; break;
1835                 }
1836                 break;
1837             case 112:
1838                 switch (((inst >> 17) & 0b11111000) | ((inst >> 12) & 0b00000111)) {
1839                 case 0: op = rv_op_fmv_x_s; break;
1840                 case 1: op = rv_op_fclass_s; break;
1841                 }
1842                 break;
1843             case 113:
1844                 switch (((inst >> 17) & 0b11111000) | ((inst >> 12) & 0b00000111)) {
1845                 case 0: op = rv_op_fmv_x_d; break;
1846                 case 1: op = rv_op_fclass_d; break;
1847                 }
1848                 break;
1849             case 115:
1850                 switch (((inst >> 17) & 0b11111000) | ((inst >> 12) & 0b00000111)) {
1851                 case 0: op = rv_op_fmv_x_q; break;
1852                 case 1: op = rv_op_fclass_q; break;
1853                 }
1854                 break;
1855             case 120:
1856                 switch (((inst >> 17) & 0b11111000) | ((inst >> 12) & 0b00000111)) {
1857                 case 0: op = rv_op_fmv_s_x; break;
1858                 }
1859                 break;
1860             case 121:
1861                 switch (((inst >> 17) & 0b11111000) | ((inst >> 12) & 0b00000111)) {
1862                 case 0: op = rv_op_fmv_d_x; break;
1863                 }
1864                 break;
1865             case 123:
1866                 switch (((inst >> 17) & 0b11111000) | ((inst >> 12) & 0b00000111)) {
1867                 case 0: op = rv_op_fmv_q_x; break;
1868                 }
1869                 break;
1870             }
1871             break;
1872         case 22:
1873             switch (((inst >> 12) & 0b111)) {
1874             case 0: op = rv_op_addid; break;
1875             case 1:
1876                 switch (((inst >> 26) & 0b111111)) {
1877                 case 0: op = rv_op_sllid; break;
1878                 }
1879                 break;
1880             case 5:
1881                 switch (((inst >> 26) & 0b111111)) {
1882                 case 0: op = rv_op_srlid; break;
1883                 case 16: op = rv_op_sraid; break;
1884                 }
1885                 break;
1886             }
1887             break;
1888         case 24:
1889             switch (((inst >> 12) & 0b111)) {
1890             case 0: op = rv_op_beq; break;
1891             case 1: op = rv_op_bne; break;
1892             case 4: op = rv_op_blt; break;
1893             case 5: op = rv_op_bge; break;
1894             case 6: op = rv_op_bltu; break;
1895             case 7: op = rv_op_bgeu; break;
1896             }
1897             break;
1898         case 25:
1899             switch (((inst >> 12) & 0b111)) {
1900             case 0: op = rv_op_jalr; break;
1901             }
1902             break;
1903         case 27: op = rv_op_jal; break;
1904         case 28:
1905             switch (((inst >> 12) & 0b111)) {
1906             case 0:
1907                 switch (((inst >> 20) & 0b111111100000) | ((inst >> 7) & 0b000000011111)) {
1908                 case 0:
1909                     switch (((inst >> 15) & 0b1111111111)) {
1910                     case 0: op = rv_op_ecall; break;
1911                     case 32: op = rv_op_ebreak; break;
1912                     case 64: op = rv_op_uret; break;
1913                     }
1914                     break;
1915                 case 256:
1916                     switch (((inst >> 20) & 0b11111)) {
1917                     case 2:
1918                         switch (((inst >> 15) & 0b11111)) {
1919                         case 0: op = rv_op_sret; break;
1920                         }
1921                         break;
1922                     case 4: op = rv_op_sfence_vm; break;
1923                     case 5:
1924                         switch (((inst >> 15) & 0b11111)) {
1925                         case 0: op = rv_op_wfi; break;
1926                         }
1927                         break;
1928                     }
1929                     break;
1930                 case 288: op = rv_op_sfence_vma; break;
1931                 case 512:
1932                     switch (((inst >> 15) & 0b1111111111)) {
1933                     case 64: op = rv_op_hret; break;
1934                     }
1935                     break;
1936                 case 768:
1937                     switch (((inst >> 15) & 0b1111111111)) {
1938                     case 64: op = rv_op_mret; break;
1939                     }
1940                     break;
1941                 case 1952:
1942                     switch (((inst >> 15) & 0b1111111111)) {
1943                     case 576: op = rv_op_dret; break;
1944                     }
1945                     break;
1946                 }
1947                 break;
1948             case 1: op = rv_op_csrrw; break;
1949             case 2: op = rv_op_csrrs; break;
1950             case 3: op = rv_op_csrrc; break;
1951             case 5: op = rv_op_csrrwi; break;
1952             case 6: op = rv_op_csrrsi; break;
1953             case 7: op = rv_op_csrrci; break;
1954             }
1955             break;
1956         case 30:
1957             switch (((inst >> 22) & 0b1111111000) | ((inst >> 12) & 0b0000000111)) {
1958             case 0: op = rv_op_addd; break;
1959             case 1: op = rv_op_slld; break;
1960             case 5: op = rv_op_srld; break;
1961             case 8: op = rv_op_muld; break;
1962             case 12: op = rv_op_divd; break;
1963             case 13: op = rv_op_divud; break;
1964             case 14: op = rv_op_remd; break;
1965             case 15: op = rv_op_remud; break;
1966             case 256: op = rv_op_subd; break;
1967             case 261: op = rv_op_srad; break;
1968             }
1969             break;
1970         }
1971         break;
1972     }
1973     dec->op = op;
1974 }
1975 
1976 /* operand extractors */
1977 
1978 static uint32_t operand_rd(rv_inst inst)
1979 {
1980     return (inst << 52) >> 59;
1981 }
1982 
1983 static uint32_t operand_rs1(rv_inst inst)
1984 {
1985     return (inst << 44) >> 59;
1986 }
1987 
1988 static uint32_t operand_rs2(rv_inst inst)
1989 {
1990     return (inst << 39) >> 59;
1991 }
1992 
1993 static uint32_t operand_rs3(rv_inst inst)
1994 {
1995     return (inst << 32) >> 59;
1996 }
1997 
1998 static uint32_t operand_aq(rv_inst inst)
1999 {
2000     return (inst << 37) >> 63;
2001 }
2002 
2003 static uint32_t operand_rl(rv_inst inst)
2004 {
2005     return (inst << 38) >> 63;
2006 }
2007 
2008 static uint32_t operand_pred(rv_inst inst)
2009 {
2010     return (inst << 36) >> 60;
2011 }
2012 
2013 static uint32_t operand_succ(rv_inst inst)
2014 {
2015     return (inst << 40) >> 60;
2016 }
2017 
2018 static uint32_t operand_rm(rv_inst inst)
2019 {
2020     return (inst << 49) >> 61;
2021 }
2022 
2023 static uint32_t operand_shamt5(rv_inst inst)
2024 {
2025     return (inst << 39) >> 59;
2026 }
2027 
2028 static uint32_t operand_shamt6(rv_inst inst)
2029 {
2030     return (inst << 38) >> 58;
2031 }
2032 
2033 static uint32_t operand_shamt7(rv_inst inst)
2034 {
2035     return (inst << 37) >> 57;
2036 }
2037 
2038 static uint32_t operand_crdq(rv_inst inst)
2039 {
2040     return (inst << 59) >> 61;
2041 }
2042 
2043 static uint32_t operand_crs1q(rv_inst inst)
2044 {
2045     return (inst << 54) >> 61;
2046 }
2047 
2048 static uint32_t operand_crs1rdq(rv_inst inst)
2049 {
2050     return (inst << 54) >> 61;
2051 }
2052 
2053 static uint32_t operand_crs2q(rv_inst inst)
2054 {
2055     return (inst << 59) >> 61;
2056 }
2057 
2058 static uint32_t operand_crd(rv_inst inst)
2059 {
2060     return (inst << 52) >> 59;
2061 }
2062 
2063 static uint32_t operand_crs1(rv_inst inst)
2064 {
2065     return (inst << 52) >> 59;
2066 }
2067 
2068 static uint32_t operand_crs1rd(rv_inst inst)
2069 {
2070     return (inst << 52) >> 59;
2071 }
2072 
2073 static uint32_t operand_crs2(rv_inst inst)
2074 {
2075     return (inst << 57) >> 59;
2076 }
2077 
2078 static uint32_t operand_cimmsh5(rv_inst inst)
2079 {
2080     return (inst << 57) >> 59;
2081 }
2082 
2083 static uint32_t operand_csr12(rv_inst inst)
2084 {
2085     return (inst << 32) >> 52;
2086 }
2087 
2088 static int32_t operand_imm12(rv_inst inst)
2089 {
2090     return ((int64_t)inst << 32) >> 52;
2091 }
2092 
2093 static int32_t operand_imm20(rv_inst inst)
2094 {
2095     return (((int64_t)inst << 32) >> 44) << 12;
2096 }
2097 
2098 static int32_t operand_jimm20(rv_inst inst)
2099 {
2100     return (((int64_t)inst << 32) >> 63) << 20 |
2101         ((inst << 33) >> 54) << 1 |
2102         ((inst << 43) >> 63) << 11 |
2103         ((inst << 44) >> 56) << 12;
2104 }
2105 
2106 static int32_t operand_simm12(rv_inst inst)
2107 {
2108     return (((int64_t)inst << 32) >> 57) << 5 |
2109         (inst << 52) >> 59;
2110 }
2111 
2112 static int32_t operand_sbimm12(rv_inst inst)
2113 {
2114     return (((int64_t)inst << 32) >> 63) << 12 |
2115         ((inst << 33) >> 58) << 5 |
2116         ((inst << 52) >> 60) << 1 |
2117         ((inst << 56) >> 63) << 11;
2118 }
2119 
2120 static uint32_t operand_cimmsh6(rv_inst inst)
2121 {
2122     return ((inst << 51) >> 63) << 5 |
2123         (inst << 57) >> 59;
2124 }
2125 
2126 static int32_t operand_cimmi(rv_inst inst)
2127 {
2128     return (((int64_t)inst << 51) >> 63) << 5 |
2129         (inst << 57) >> 59;
2130 }
2131 
2132 static int32_t operand_cimmui(rv_inst inst)
2133 {
2134     return (((int64_t)inst << 51) >> 63) << 17 |
2135         ((inst << 57) >> 59) << 12;
2136 }
2137 
2138 static uint32_t operand_cimmlwsp(rv_inst inst)
2139 {
2140     return ((inst << 51) >> 63) << 5 |
2141         ((inst << 57) >> 61) << 2 |
2142         ((inst << 60) >> 62) << 6;
2143 }
2144 
2145 static uint32_t operand_cimmldsp(rv_inst inst)
2146 {
2147     return ((inst << 51) >> 63) << 5 |
2148         ((inst << 57) >> 62) << 3 |
2149         ((inst << 59) >> 61) << 6;
2150 }
2151 
2152 static uint32_t operand_cimmlqsp(rv_inst inst)
2153 {
2154     return ((inst << 51) >> 63) << 5 |
2155         ((inst << 57) >> 63) << 4 |
2156         ((inst << 58) >> 60) << 6;
2157 }
2158 
2159 static int32_t operand_cimm16sp(rv_inst inst)
2160 {
2161     return (((int64_t)inst << 51) >> 63) << 9 |
2162         ((inst << 57) >> 63) << 4 |
2163         ((inst << 58) >> 63) << 6 |
2164         ((inst << 59) >> 62) << 7 |
2165         ((inst << 61) >> 63) << 5;
2166 }
2167 
2168 static int32_t operand_cimmj(rv_inst inst)
2169 {
2170     return (((int64_t)inst << 51) >> 63) << 11 |
2171         ((inst << 52) >> 63) << 4 |
2172         ((inst << 53) >> 62) << 8 |
2173         ((inst << 55) >> 63) << 10 |
2174         ((inst << 56) >> 63) << 6 |
2175         ((inst << 57) >> 63) << 7 |
2176         ((inst << 58) >> 61) << 1 |
2177         ((inst << 61) >> 63) << 5;
2178 }
2179 
2180 static int32_t operand_cimmb(rv_inst inst)
2181 {
2182     return (((int64_t)inst << 51) >> 63) << 8 |
2183         ((inst << 52) >> 62) << 3 |
2184         ((inst << 57) >> 62) << 6 |
2185         ((inst << 59) >> 62) << 1 |
2186         ((inst << 61) >> 63) << 5;
2187 }
2188 
2189 static uint32_t operand_cimmswsp(rv_inst inst)
2190 {
2191     return ((inst << 51) >> 60) << 2 |
2192         ((inst << 55) >> 62) << 6;
2193 }
2194 
2195 static uint32_t operand_cimmsdsp(rv_inst inst)
2196 {
2197     return ((inst << 51) >> 61) << 3 |
2198         ((inst << 54) >> 61) << 6;
2199 }
2200 
2201 static uint32_t operand_cimmsqsp(rv_inst inst)
2202 {
2203     return ((inst << 51) >> 62) << 4 |
2204         ((inst << 53) >> 60) << 6;
2205 }
2206 
2207 static uint32_t operand_cimm4spn(rv_inst inst)
2208 {
2209     return ((inst << 51) >> 62) << 4 |
2210         ((inst << 53) >> 60) << 6 |
2211         ((inst << 57) >> 63) << 2 |
2212         ((inst << 58) >> 63) << 3;
2213 }
2214 
2215 static uint32_t operand_cimmw(rv_inst inst)
2216 {
2217     return ((inst << 51) >> 61) << 3 |
2218         ((inst << 57) >> 63) << 2 |
2219         ((inst << 58) >> 63) << 6;
2220 }
2221 
2222 static uint32_t operand_cimmd(rv_inst inst)
2223 {
2224     return ((inst << 51) >> 61) << 3 |
2225         ((inst << 57) >> 62) << 6;
2226 }
2227 
2228 static uint32_t operand_cimmq(rv_inst inst)
2229 {
2230     return ((inst << 51) >> 62) << 4 |
2231         ((inst << 53) >> 63) << 8 |
2232         ((inst << 57) >> 62) << 6;
2233 }
2234 
2235 /* decode operands */
2236 
2237 static void decode_inst_operands(rv_decode *dec)
2238 {
2239     rv_inst inst = dec->inst;
2240     dec->codec = opcode_data[dec->op].codec;
2241     switch (dec->codec) {
2242     case rv_codec_none:
2243         dec->rd = dec->rs1 = dec->rs2 = rv_ireg_zero;
2244         dec->imm = 0;
2245         break;
2246     case rv_codec_u:
2247         dec->rd = operand_rd(inst);
2248         dec->rs1 = dec->rs2 = rv_ireg_zero;
2249         dec->imm = operand_imm20(inst);
2250         break;
2251     case rv_codec_uj:
2252         dec->rd = operand_rd(inst);
2253         dec->rs1 = dec->rs2 = rv_ireg_zero;
2254         dec->imm = operand_jimm20(inst);
2255         break;
2256     case rv_codec_i:
2257         dec->rd = operand_rd(inst);
2258         dec->rs1 = operand_rs1(inst);
2259         dec->rs2 = rv_ireg_zero;
2260         dec->imm = operand_imm12(inst);
2261         break;
2262     case rv_codec_i_sh5:
2263         dec->rd = operand_rd(inst);
2264         dec->rs1 = operand_rs1(inst);
2265         dec->rs2 = rv_ireg_zero;
2266         dec->imm = operand_shamt5(inst);
2267         break;
2268     case rv_codec_i_sh6:
2269         dec->rd = operand_rd(inst);
2270         dec->rs1 = operand_rs1(inst);
2271         dec->rs2 = rv_ireg_zero;
2272         dec->imm = operand_shamt6(inst);
2273         break;
2274     case rv_codec_i_sh7:
2275         dec->rd = operand_rd(inst);
2276         dec->rs1 = operand_rs1(inst);
2277         dec->rs2 = rv_ireg_zero;
2278         dec->imm = operand_shamt7(inst);
2279         break;
2280     case rv_codec_i_csr:
2281         dec->rd = operand_rd(inst);
2282         dec->rs1 = operand_rs1(inst);
2283         dec->rs2 = rv_ireg_zero;
2284         dec->imm = operand_csr12(inst);
2285         break;
2286     case rv_codec_s:
2287         dec->rd = rv_ireg_zero;
2288         dec->rs1 = operand_rs1(inst);
2289         dec->rs2 = operand_rs2(inst);
2290         dec->imm = operand_simm12(inst);
2291         break;
2292     case rv_codec_sb:
2293         dec->rd = rv_ireg_zero;
2294         dec->rs1 = operand_rs1(inst);
2295         dec->rs2 = operand_rs2(inst);
2296         dec->imm = operand_sbimm12(inst);
2297         break;
2298     case rv_codec_r:
2299         dec->rd = operand_rd(inst);
2300         dec->rs1 = operand_rs1(inst);
2301         dec->rs2 = operand_rs2(inst);
2302         dec->imm = 0;
2303         break;
2304     case rv_codec_r_m:
2305         dec->rd = operand_rd(inst);
2306         dec->rs1 = operand_rs1(inst);
2307         dec->rs2 = operand_rs2(inst);
2308         dec->imm = 0;
2309         dec->rm = operand_rm(inst);
2310         break;
2311     case rv_codec_r4_m:
2312         dec->rd = operand_rd(inst);
2313         dec->rs1 = operand_rs1(inst);
2314         dec->rs2 = operand_rs2(inst);
2315         dec->rs3 = operand_rs3(inst);
2316         dec->imm = 0;
2317         dec->rm = operand_rm(inst);
2318         break;
2319     case rv_codec_r_a:
2320         dec->rd = operand_rd(inst);
2321         dec->rs1 = operand_rs1(inst);
2322         dec->rs2 = operand_rs2(inst);
2323         dec->imm = 0;
2324         dec->aq = operand_aq(inst);
2325         dec->rl = operand_rl(inst);
2326         break;
2327     case rv_codec_r_l:
2328         dec->rd = operand_rd(inst);
2329         dec->rs1 = operand_rs1(inst);
2330         dec->rs2 = rv_ireg_zero;
2331         dec->imm = 0;
2332         dec->aq = operand_aq(inst);
2333         dec->rl = operand_rl(inst);
2334         break;
2335     case rv_codec_r_f:
2336         dec->rd = dec->rs1 = dec->rs2 = rv_ireg_zero;
2337         dec->pred = operand_pred(inst);
2338         dec->succ = operand_succ(inst);
2339         dec->imm = 0;
2340         break;
2341     case rv_codec_cb:
2342         dec->rd = rv_ireg_zero;
2343         dec->rs1 = operand_crs1q(inst) + 8;
2344         dec->rs2 = rv_ireg_zero;
2345         dec->imm = operand_cimmb(inst);
2346         break;
2347     case rv_codec_cb_imm:
2348         dec->rd = dec->rs1 = operand_crs1rdq(inst) + 8;
2349         dec->rs2 = rv_ireg_zero;
2350         dec->imm = operand_cimmi(inst);
2351         break;
2352     case rv_codec_cb_sh5:
2353         dec->rd = dec->rs1 = operand_crs1rdq(inst) + 8;
2354         dec->rs2 = rv_ireg_zero;
2355         dec->imm = operand_cimmsh5(inst);
2356         break;
2357     case rv_codec_cb_sh6:
2358         dec->rd = dec->rs1 = operand_crs1rdq(inst) + 8;
2359         dec->rs2 = rv_ireg_zero;
2360         dec->imm = operand_cimmsh6(inst);
2361         break;
2362     case rv_codec_ci:
2363         dec->rd = dec->rs1 = operand_crs1rd(inst);
2364         dec->rs2 = rv_ireg_zero;
2365         dec->imm = operand_cimmi(inst);
2366         break;
2367     case rv_codec_ci_sh5:
2368         dec->rd = dec->rs1 = operand_crs1rd(inst);
2369         dec->rs2 = rv_ireg_zero;
2370         dec->imm = operand_cimmsh5(inst);
2371         break;
2372     case rv_codec_ci_sh6:
2373         dec->rd = dec->rs1 = operand_crs1rd(inst);
2374         dec->rs2 = rv_ireg_zero;
2375         dec->imm = operand_cimmsh6(inst);
2376         break;
2377     case rv_codec_ci_16sp:
2378         dec->rd = rv_ireg_sp;
2379         dec->rs1 = rv_ireg_sp;
2380         dec->rs2 = rv_ireg_zero;
2381         dec->imm = operand_cimm16sp(inst);
2382         break;
2383     case rv_codec_ci_lwsp:
2384         dec->rd = operand_crd(inst);
2385         dec->rs1 = rv_ireg_sp;
2386         dec->rs2 = rv_ireg_zero;
2387         dec->imm = operand_cimmlwsp(inst);
2388         break;
2389     case rv_codec_ci_ldsp:
2390         dec->rd = operand_crd(inst);
2391         dec->rs1 = rv_ireg_sp;
2392         dec->rs2 = rv_ireg_zero;
2393         dec->imm = operand_cimmldsp(inst);
2394         break;
2395     case rv_codec_ci_lqsp:
2396         dec->rd = operand_crd(inst);
2397         dec->rs1 = rv_ireg_sp;
2398         dec->rs2 = rv_ireg_zero;
2399         dec->imm = operand_cimmlqsp(inst);
2400         break;
2401     case rv_codec_ci_li:
2402         dec->rd = operand_crd(inst);
2403         dec->rs1 = rv_ireg_zero;
2404         dec->rs2 = rv_ireg_zero;
2405         dec->imm = operand_cimmi(inst);
2406         break;
2407     case rv_codec_ci_lui:
2408         dec->rd = operand_crd(inst);
2409         dec->rs1 = rv_ireg_zero;
2410         dec->rs2 = rv_ireg_zero;
2411         dec->imm = operand_cimmui(inst);
2412         break;
2413     case rv_codec_ci_none:
2414         dec->rd = dec->rs1 = dec->rs2 = rv_ireg_zero;
2415         dec->imm = 0;
2416         break;
2417     case rv_codec_ciw_4spn:
2418         dec->rd = operand_crdq(inst) + 8;
2419         dec->rs1 = rv_ireg_sp;
2420         dec->rs2 = rv_ireg_zero;
2421         dec->imm = operand_cimm4spn(inst);
2422         break;
2423     case rv_codec_cj:
2424         dec->rd = dec->rs1 = dec->rs2 = rv_ireg_zero;
2425         dec->imm = operand_cimmj(inst);
2426         break;
2427     case rv_codec_cj_jal:
2428         dec->rd = rv_ireg_ra;
2429         dec->rs1 = dec->rs2 = rv_ireg_zero;
2430         dec->imm = operand_cimmj(inst);
2431         break;
2432     case rv_codec_cl_lw:
2433         dec->rd = operand_crdq(inst) + 8;
2434         dec->rs1 = operand_crs1q(inst) + 8;
2435         dec->rs2 = rv_ireg_zero;
2436         dec->imm = operand_cimmw(inst);
2437         break;
2438     case rv_codec_cl_ld:
2439         dec->rd = operand_crdq(inst) + 8;
2440         dec->rs1 = operand_crs1q(inst) + 8;
2441         dec->rs2 = rv_ireg_zero;
2442         dec->imm = operand_cimmd(inst);
2443         break;
2444     case rv_codec_cl_lq:
2445         dec->rd = operand_crdq(inst) + 8;
2446         dec->rs1 = operand_crs1q(inst) + 8;
2447         dec->rs2 = rv_ireg_zero;
2448         dec->imm = operand_cimmq(inst);
2449         break;
2450     case rv_codec_cr:
2451         dec->rd = dec->rs1 = operand_crs1rd(inst);
2452         dec->rs2 = operand_crs2(inst);
2453         dec->imm = 0;
2454         break;
2455     case rv_codec_cr_mv:
2456         dec->rd = operand_crd(inst);
2457         dec->rs1 = operand_crs2(inst);
2458         dec->rs2 = rv_ireg_zero;
2459         dec->imm = 0;
2460         break;
2461     case rv_codec_cr_jalr:
2462         dec->rd = rv_ireg_ra;
2463         dec->rs1 = operand_crs1(inst);
2464         dec->rs2 = rv_ireg_zero;
2465         dec->imm = 0;
2466         break;
2467     case rv_codec_cr_jr:
2468         dec->rd = rv_ireg_zero;
2469         dec->rs1 = operand_crs1(inst);
2470         dec->rs2 = rv_ireg_zero;
2471         dec->imm = 0;
2472         break;
2473     case rv_codec_cs:
2474         dec->rd = dec->rs1 = operand_crs1rdq(inst) + 8;
2475         dec->rs2 = operand_crs2q(inst) + 8;
2476         dec->imm = 0;
2477         break;
2478     case rv_codec_cs_sw:
2479         dec->rd = rv_ireg_zero;
2480         dec->rs1 = operand_crs1q(inst) + 8;
2481         dec->rs2 = operand_crs2q(inst) + 8;
2482         dec->imm = operand_cimmw(inst);
2483         break;
2484     case rv_codec_cs_sd:
2485         dec->rd = rv_ireg_zero;
2486         dec->rs1 = operand_crs1q(inst) + 8;
2487         dec->rs2 = operand_crs2q(inst) + 8;
2488         dec->imm = operand_cimmd(inst);
2489         break;
2490     case rv_codec_cs_sq:
2491         dec->rd = rv_ireg_zero;
2492         dec->rs1 = operand_crs1q(inst) + 8;
2493         dec->rs2 = operand_crs2q(inst) + 8;
2494         dec->imm = operand_cimmq(inst);
2495         break;
2496     case rv_codec_css_swsp:
2497         dec->rd = rv_ireg_zero;
2498         dec->rs1 = rv_ireg_sp;
2499         dec->rs2 = operand_crs2(inst);
2500         dec->imm = operand_cimmswsp(inst);
2501         break;
2502     case rv_codec_css_sdsp:
2503         dec->rd = rv_ireg_zero;
2504         dec->rs1 = rv_ireg_sp;
2505         dec->rs2 = operand_crs2(inst);
2506         dec->imm = operand_cimmsdsp(inst);
2507         break;
2508     case rv_codec_css_sqsp:
2509         dec->rd = rv_ireg_zero;
2510         dec->rs1 = rv_ireg_sp;
2511         dec->rs2 = operand_crs2(inst);
2512         dec->imm = operand_cimmsqsp(inst);
2513         break;
2514     };
2515 }
2516 
2517 /* check constraint */
2518 
2519 static bool check_constraints(rv_decode *dec, const rvc_constraint *c)
2520 {
2521     int32_t imm = dec->imm;
2522     uint8_t rd = dec->rd, rs1 = dec->rs1, rs2 = dec->rs2;
2523     while (*c != rvc_end) {
2524         switch (*c) {
2525         case rvc_simm_6:
2526             if (!(imm >= -32 && imm < 32)) {
2527                 return false;
2528             }
2529             break;
2530         case rvc_imm_6:
2531             if (!(imm <= 63)) {
2532                 return false;
2533             }
2534             break;
2535         case rvc_imm_7:
2536             if (!(imm <= 127)) {
2537                 return false;
2538             }
2539             break;
2540         case rvc_imm_8:
2541             if (!(imm <= 255)) {
2542                 return false;
2543             }
2544             break;
2545         case rvc_imm_9:
2546             if (!(imm <= 511)) {
2547                 return false;
2548             }
2549             break;
2550         case rvc_imm_10:
2551             if (!(imm <= 1023)) {
2552                 return false;
2553             }
2554             break;
2555         case rvc_imm_12:
2556             if (!(imm <= 4095)) {
2557                 return false;
2558             }
2559             break;
2560         case rvc_imm_18:
2561             if (!(imm <= 262143)) {
2562                 return false;
2563             }
2564             break;
2565         case rvc_imm_nz:
2566             if (!(imm != 0)) {
2567                 return false;
2568             }
2569             break;
2570         case rvc_imm_x2:
2571             if (!((imm & 0b1) == 0)) {
2572                 return false;
2573             }
2574             break;
2575         case rvc_imm_x4:
2576             if (!((imm & 0b11) == 0)) {
2577                 return false;
2578             }
2579             break;
2580         case rvc_imm_x8:
2581             if (!((imm & 0b111) == 0)) {
2582                 return false;
2583             }
2584             break;
2585         case rvc_imm_x16:
2586             if (!((imm & 0b1111) == 0)) {
2587                 return false;
2588             }
2589             break;
2590         case rvc_rd_b3:
2591             if (!(rd  >= 8 && rd  <= 15)) {
2592                 return false;
2593             }
2594             break;
2595         case rvc_rs1_b3:
2596             if (!(rs1 >= 8 && rs1 <= 15)) {
2597                 return false;
2598             }
2599             break;
2600         case rvc_rs2_b3:
2601             if (!(rs2 >= 8 && rs2 <= 15)) {
2602                 return false;
2603             }
2604             break;
2605         case rvc_rd_eq_rs1:
2606             if (!(rd == rs1)) {
2607                 return false;
2608             }
2609             break;
2610         case rvc_rd_eq_ra:
2611             if (!(rd == 1)) {
2612                 return false;
2613             }
2614             break;
2615         case rvc_rd_eq_sp:
2616             if (!(rd == 2)) {
2617                 return false;
2618             }
2619             break;
2620         case rvc_rd_eq_x0:
2621             if (!(rd == 0)) {
2622                 return false;
2623             }
2624             break;
2625         case rvc_rs1_eq_sp:
2626             if (!(rs1 == 2)) {
2627                 return false;
2628             }
2629             break;
2630         case rvc_rs1_eq_x0:
2631             if (!(rs1 == 0)) {
2632                 return false;
2633             }
2634             break;
2635         case rvc_rs2_eq_x0:
2636             if (!(rs2 == 0)) {
2637                 return false;
2638             }
2639             break;
2640         case rvc_rd_ne_x0_x2:
2641             if (!(rd != 0 && rd != 2)) {
2642                 return false;
2643             }
2644             break;
2645         case rvc_rd_ne_x0:
2646             if (!(rd != 0)) {
2647                 return false;
2648             }
2649             break;
2650         case rvc_rs1_ne_x0:
2651             if (!(rs1 != 0)) {
2652                 return false;
2653             }
2654             break;
2655         case rvc_rs2_ne_x0:
2656             if (!(rs2 != 0)) {
2657                 return false;
2658             }
2659             break;
2660         case rvc_rs2_eq_rs1:
2661             if (!(rs2 == rs1)) {
2662                 return false;
2663             }
2664             break;
2665         case rvc_rs1_eq_ra:
2666             if (!(rs1 == 1)) {
2667                 return false;
2668             }
2669             break;
2670         case rvc_imm_eq_zero:
2671             if (!(imm == 0)) {
2672                 return false;
2673             }
2674             break;
2675         case rvc_imm_eq_n1:
2676             if (!(imm == -1)) {
2677                 return false;
2678             }
2679             break;
2680         case rvc_imm_eq_p1:
2681             if (!(imm == 1)) {
2682                 return false;
2683             }
2684             break;
2685         case rvc_csr_eq_0x001:
2686             if (!(imm == 0x001)) {
2687                 return false;
2688             }
2689             break;
2690         case rvc_csr_eq_0x002:
2691             if (!(imm == 0x002)) {
2692                 return false;
2693             }
2694             break;
2695         case rvc_csr_eq_0x003:
2696             if (!(imm == 0x003)) {
2697                 return false;
2698             }
2699             break;
2700         case rvc_csr_eq_0xc00:
2701             if (!(imm == 0xc00)) {
2702                 return false;
2703             }
2704             break;
2705         case rvc_csr_eq_0xc01:
2706             if (!(imm == 0xc01)) {
2707                 return false;
2708             }
2709             break;
2710         case rvc_csr_eq_0xc02:
2711             if (!(imm == 0xc02)) {
2712                 return false;
2713             }
2714             break;
2715         case rvc_csr_eq_0xc80:
2716             if (!(imm == 0xc80)) {
2717                 return false;
2718             }
2719             break;
2720         case rvc_csr_eq_0xc81:
2721             if (!(imm == 0xc81)) {
2722                 return false;
2723             }
2724             break;
2725         case rvc_csr_eq_0xc82:
2726             if (!(imm == 0xc82)) {
2727                 return false;
2728             }
2729             break;
2730         default: break;
2731         }
2732         c++;
2733     }
2734     return true;
2735 }
2736 
2737 /* instruction length */
2738 
2739 static size_t inst_length(rv_inst inst)
2740 {
2741     /* NOTE: supports maximum instruction size of 64-bits */
2742 
2743     /* instruction length coding
2744      *
2745      *      aa - 16 bit aa != 11
2746      *   bbb11 - 32 bit bbb != 111
2747      *  011111 - 48 bit
2748      * 0111111 - 64 bit
2749      */
2750 
2751     return (inst &      0b11) != 0b11      ? 2
2752          : (inst &   0b11100) != 0b11100   ? 4
2753          : (inst &  0b111111) == 0b011111  ? 6
2754          : (inst & 0b1111111) == 0b0111111 ? 8
2755          : 0;
2756 }
2757 
2758 /* format instruction */
2759 
2760 static void append(char *s1, const char *s2, size_t n)
2761 {
2762     size_t l1 = strlen(s1);
2763     if (n - l1 - 1 > 0) {
2764         strncat(s1, s2, n - l1);
2765     }
2766 }
2767 
2768 static void format_inst(char *buf, size_t buflen, size_t tab, rv_decode *dec)
2769 {
2770     char tmp[64];
2771     const char *fmt;
2772 
2773     fmt = opcode_data[dec->op].format;
2774     while (*fmt) {
2775         switch (*fmt) {
2776         case 'O':
2777             append(buf, opcode_data[dec->op].name, buflen);
2778             break;
2779         case '(':
2780             append(buf, "(", buflen);
2781             break;
2782         case ',':
2783             append(buf, ",", buflen);
2784             break;
2785         case ')':
2786             append(buf, ")", buflen);
2787             break;
2788         case '0':
2789             append(buf, rv_ireg_name_sym[dec->rd], buflen);
2790             break;
2791         case '1':
2792             append(buf, rv_ireg_name_sym[dec->rs1], buflen);
2793             break;
2794         case '2':
2795             append(buf, rv_ireg_name_sym[dec->rs2], buflen);
2796             break;
2797         case '3':
2798             append(buf, rv_freg_name_sym[dec->rd], buflen);
2799             break;
2800         case '4':
2801             append(buf, rv_freg_name_sym[dec->rs1], buflen);
2802             break;
2803         case '5':
2804             append(buf, rv_freg_name_sym[dec->rs2], buflen);
2805             break;
2806         case '6':
2807             append(buf, rv_freg_name_sym[dec->rs3], buflen);
2808             break;
2809         case '7':
2810             snprintf(tmp, sizeof(tmp), "%d", dec->rs1);
2811             append(buf, tmp, buflen);
2812             break;
2813         case 'i':
2814             snprintf(tmp, sizeof(tmp), "%d", dec->imm);
2815             append(buf, tmp, buflen);
2816             break;
2817         case 'o':
2818             snprintf(tmp, sizeof(tmp), "%d", dec->imm);
2819             append(buf, tmp, buflen);
2820             while (strlen(buf) < tab * 2) {
2821                 append(buf, " ", buflen);
2822             }
2823             snprintf(tmp, sizeof(tmp), "# 0x%" PRIx64,
2824                 dec->pc + dec->imm);
2825             append(buf, tmp, buflen);
2826             break;
2827         case 'c': {
2828             const char *name = csr_name(dec->imm & 0xfff);
2829             if (name) {
2830                 append(buf, name, buflen);
2831             } else {
2832                 snprintf(tmp, sizeof(tmp), "0x%03x", dec->imm & 0xfff);
2833                 append(buf, tmp, buflen);
2834             }
2835             break;
2836         }
2837         case 'r':
2838             switch (dec->rm) {
2839             case rv_rm_rne:
2840                 append(buf, "rne", buflen);
2841                 break;
2842             case rv_rm_rtz:
2843                 append(buf, "rtz", buflen);
2844                 break;
2845             case rv_rm_rdn:
2846                 append(buf, "rdn", buflen);
2847                 break;
2848             case rv_rm_rup:
2849                 append(buf, "rup", buflen);
2850                 break;
2851             case rv_rm_rmm:
2852                 append(buf, "rmm", buflen);
2853                 break;
2854             case rv_rm_dyn:
2855                 append(buf, "dyn", buflen);
2856                 break;
2857             default:
2858                 append(buf, "inv", buflen);
2859                 break;
2860             }
2861             break;
2862         case 'p':
2863             if (dec->pred & rv_fence_i) {
2864                 append(buf, "i", buflen);
2865             }
2866             if (dec->pred & rv_fence_o) {
2867                 append(buf, "o", buflen);
2868             }
2869             if (dec->pred & rv_fence_r) {
2870                 append(buf, "r", buflen);
2871             }
2872             if (dec->pred & rv_fence_w) {
2873                 append(buf, "w", buflen);
2874             }
2875             break;
2876         case 's':
2877             if (dec->succ & rv_fence_i) {
2878                 append(buf, "i", buflen);
2879             }
2880             if (dec->succ & rv_fence_o) {
2881                 append(buf, "o", buflen);
2882             }
2883             if (dec->succ & rv_fence_r) {
2884                 append(buf, "r", buflen);
2885             }
2886             if (dec->succ & rv_fence_w) {
2887                 append(buf, "w", buflen);
2888             }
2889             break;
2890         case '\t':
2891             while (strlen(buf) < tab) {
2892                 append(buf, " ", buflen);
2893             }
2894             break;
2895         case 'A':
2896             if (dec->aq) {
2897                 append(buf, ".aq", buflen);
2898             }
2899             break;
2900         case 'R':
2901             if (dec->rl) {
2902                 append(buf, ".rl", buflen);
2903             }
2904             break;
2905         default:
2906             break;
2907         }
2908         fmt++;
2909     }
2910 }
2911 
2912 /* lift instruction to pseudo-instruction */
2913 
2914 static void decode_inst_lift_pseudo(rv_decode *dec)
2915 {
2916     const rv_comp_data *comp_data = opcode_data[dec->op].pseudo;
2917     if (!comp_data) {
2918         return;
2919     }
2920     while (comp_data->constraints) {
2921         if (check_constraints(dec, comp_data->constraints)) {
2922             dec->op = comp_data->op;
2923             dec->codec = opcode_data[dec->op].codec;
2924             return;
2925         }
2926         comp_data++;
2927     }
2928 }
2929 
2930 /* decompress instruction */
2931 
2932 static void decode_inst_decompress_rv32(rv_decode *dec)
2933 {
2934     int decomp_op = opcode_data[dec->op].decomp_rv32;
2935     if (decomp_op != rv_op_illegal) {
2936         dec->op = decomp_op;
2937         dec->codec = opcode_data[decomp_op].codec;
2938     }
2939 }
2940 
2941 static void decode_inst_decompress_rv64(rv_decode *dec)
2942 {
2943     int decomp_op = opcode_data[dec->op].decomp_rv64;
2944     if (decomp_op != rv_op_illegal) {
2945         dec->op = decomp_op;
2946         dec->codec = opcode_data[decomp_op].codec;
2947     }
2948 }
2949 
2950 static void decode_inst_decompress_rv128(rv_decode *dec)
2951 {
2952     int decomp_op = opcode_data[dec->op].decomp_rv128;
2953     if (decomp_op != rv_op_illegal) {
2954         dec->op = decomp_op;
2955         dec->codec = opcode_data[decomp_op].codec;
2956     }
2957 }
2958 
2959 static void decode_inst_decompress(rv_decode *dec, rv_isa isa)
2960 {
2961     switch (isa) {
2962     case rv32:
2963         decode_inst_decompress_rv32(dec);
2964         break;
2965     case rv64:
2966         decode_inst_decompress_rv64(dec);
2967         break;
2968     case rv128:
2969         decode_inst_decompress_rv128(dec);
2970         break;
2971     }
2972 }
2973 
2974 /* disassemble instruction */
2975 
2976 static void
2977 disasm_inst(char *buf, size_t buflen, rv_isa isa, uint64_t pc, rv_inst inst)
2978 {
2979     rv_decode dec = { 0 };
2980     dec.pc = pc;
2981     dec.inst = inst;
2982     decode_inst_opcode(&dec, isa);
2983     decode_inst_operands(&dec);
2984     decode_inst_decompress(&dec, isa);
2985     decode_inst_lift_pseudo(&dec);
2986     format_inst(buf, buflen, 16, &dec);
2987 }
2988 
2989 #define INST_FMT_2 "%04" PRIx64 "              "
2990 #define INST_FMT_4 "%08" PRIx64 "          "
2991 #define INST_FMT_6 "%012" PRIx64 "      "
2992 #define INST_FMT_8 "%016" PRIx64 "  "
2993 
2994 static int
2995 print_insn_riscv(bfd_vma memaddr, struct disassemble_info *info, rv_isa isa)
2996 {
2997     char buf[128] = { 0 };
2998     bfd_byte packet[2];
2999     rv_inst inst = 0;
3000     size_t len = 2;
3001     bfd_vma n;
3002     int status;
3003 
3004     /* Instructions are made of 2-byte packets in little-endian order */
3005     for (n = 0; n < len; n += 2) {
3006         status = (*info->read_memory_func)(memaddr + n, packet, 2, info);
3007         if (status != 0) {
3008             /* Don't fail just because we fell off the end.  */
3009             if (n > 0) {
3010                 break;
3011             }
3012             (*info->memory_error_func)(status, memaddr, info);
3013             return status;
3014         }
3015         inst |= ((rv_inst) bfd_getl16(packet)) << (8 * n);
3016         if (n == 0) {
3017             len = inst_length(inst);
3018         }
3019     }
3020 
3021     switch (len) {
3022     case 2:
3023         (*info->fprintf_func)(info->stream, INST_FMT_2, inst);
3024         break;
3025     case 4:
3026         (*info->fprintf_func)(info->stream, INST_FMT_4, inst);
3027         break;
3028     case 6:
3029         (*info->fprintf_func)(info->stream, INST_FMT_6, inst);
3030         break;
3031     default:
3032         (*info->fprintf_func)(info->stream, INST_FMT_8, inst);
3033         break;
3034     }
3035 
3036     disasm_inst(buf, sizeof(buf), isa, memaddr, inst);
3037     (*info->fprintf_func)(info->stream, "%s", buf);
3038 
3039     return len;
3040 }
3041 
3042 int print_insn_riscv32(bfd_vma memaddr, struct disassemble_info *info)
3043 {
3044     return print_insn_riscv(memaddr, info, rv32);
3045 }
3046 
3047 int print_insn_riscv64(bfd_vma memaddr, struct disassemble_info *info)
3048 {
3049     return print_insn_riscv(memaddr, info, rv64);
3050 }
3051