disas/riscv.h

   1 /*
   2  * QEMU disassembler -- RISC-V specific header.
   3  *
   4  * SPDX-License-Identifier: GPL-2.0-or-later
   5  */
   6
   7 #ifndef DISAS_RISCV_H
   8 #define DISAS_RISCV_H
   9
  10 #include "qemu/osdep.h"
  11 #include "target/riscv/cpu_cfg.h"
  12
  13 /* types */
  14
  15 typedef uint64_t rv_inst;
  16 typedef uint16_t rv_opcode;
  17
  18 /* enums */
  19
  20 typedef enum {
  21     rv32,
  22     rv64,
  23     rv128
  24 } rv_isa;
  25
  26 typedef enum {
  27     rv_rm_rne = 0,
  28     rv_rm_rtz = 1,
  29     rv_rm_rdn = 2,
  30     rv_rm_rup = 3,
  31     rv_rm_rmm = 4,
  32     rv_rm_dyn = 7,
  33 } rv_rm;
  34
  35 typedef enum {
  36     rv_fence_i = 8,
  37     rv_fence_o = 4,
  38     rv_fence_r = 2,
  39     rv_fence_w = 1,
  40 } rv_fence;
  41
  42 typedef enum {
  43     rv_ireg_zero,
  44     rv_ireg_ra,
  45     rv_ireg_sp,
  46     rv_ireg_gp,
  47     rv_ireg_tp,
  48     rv_ireg_t0,
  49     rv_ireg_t1,
  50     rv_ireg_t2,
  51     rv_ireg_s0,
  52     rv_ireg_s1,
  53     rv_ireg_a0,
  54     rv_ireg_a1,
  55     rv_ireg_a2,
  56     rv_ireg_a3,
  57     rv_ireg_a4,
  58     rv_ireg_a5,
  59     rv_ireg_a6,
  60     rv_ireg_a7,
  61     rv_ireg_s2,
  62     rv_ireg_s3,
  63     rv_ireg_s4,
  64     rv_ireg_s5,
  65     rv_ireg_s6,
  66     rv_ireg_s7,
  67     rv_ireg_s8,
  68     rv_ireg_s9,
  69     rv_ireg_s10,
  70     rv_ireg_s11,
  71     rv_ireg_t3,
  72     rv_ireg_t4,
  73     rv_ireg_t5,
  74     rv_ireg_t6,
  75 } rv_ireg;
  76
  77 typedef enum {
  78     rvc_end,
  79     rvc_rd_eq_ra,
  80     rvc_rd_eq_x0,
  81     rvc_rs1_eq_x0,
  82     rvc_rs2_eq_x0,
  83     rvc_rs2_eq_rs1,
  84     rvc_rs1_eq_ra,
  85     rvc_imm_eq_zero,
  86     rvc_imm_eq_n1,
  87     rvc_imm_eq_p1,
  88     rvc_csr_eq_0x001,
  89     rvc_csr_eq_0x002,
  90     rvc_csr_eq_0x003,
  91     rvc_csr_eq_0xc00,
  92     rvc_csr_eq_0xc01,
  93     rvc_csr_eq_0xc02,
  94     rvc_csr_eq_0xc80,
  95     rvc_csr_eq_0xc81,
  96     rvc_csr_eq_0xc82,
  97 } rvc_constraint;
  98
  99 typedef enum {
 100     rv_codec_illegal,
 101     rv_codec_none,
 102     rv_codec_u,
 103     rv_codec_uj,
 104     rv_codec_i,
 105     rv_codec_i_sh5,
 106     rv_codec_i_sh6,
 107     rv_codec_i_sh7,
 108     rv_codec_i_csr,
 109     rv_codec_s,
 110     rv_codec_sb,
 111     rv_codec_r,
 112     rv_codec_r_m,
 113     rv_codec_r4_m,
 114     rv_codec_r_a,
 115     rv_codec_r_l,
 116     rv_codec_r_f,
 117     rv_codec_cb,
 118     rv_codec_cb_imm,
 119     rv_codec_cb_sh5,
 120     rv_codec_cb_sh6,
 121     rv_codec_ci,
 122     rv_codec_ci_sh5,
 123     rv_codec_ci_sh6,
 124     rv_codec_ci_16sp,
 125     rv_codec_ci_lwsp,
 126     rv_codec_ci_ldsp,
 127     rv_codec_ci_lqsp,
 128     rv_codec_ci_li,
 129     rv_codec_ci_lui,
 130     rv_codec_ci_none,
 131     rv_codec_ciw_4spn,
 132     rv_codec_cj,
 133     rv_codec_cj_jal,
 134     rv_codec_cl_lw,
 135     rv_codec_cl_ld,
 136     rv_codec_cl_lq,
 137     rv_codec_cr,
 138     rv_codec_cr_mv,
 139     rv_codec_cr_jalr,
 140     rv_codec_cr_jr,
 141     rv_codec_cs,
 142     rv_codec_cs_sw,
 143     rv_codec_cs_sd,
 144     rv_codec_cs_sq,
 145     rv_codec_css_swsp,
 146     rv_codec_css_sdsp,
 147     rv_codec_css_sqsp,
 148     rv_codec_k_bs,
 149     rv_codec_k_rnum,
 150     rv_codec_v_r,
 151     rv_codec_v_ldst,
 152     rv_codec_v_i,
 153     rv_codec_vsetvli,
 154     rv_codec_vsetivli,
 155     rv_codec_vror_vi,
 156     rv_codec_zcb_ext,
 157     rv_codec_zcb_mul,
 158     rv_codec_zcb_lb,
 159     rv_codec_zcb_lh,
 160     rv_codec_zcmp_cm_pushpop,
 161     rv_codec_zcmp_cm_mv,
 162     rv_codec_zcmt_jt,
 163     rv_codec_r2_imm5,
 164     rv_codec_r2,
 165     rv_codec_r2_imm6,
 166     rv_codec_r_imm2,
 167     rv_codec_r2_immhl,
 168     rv_codec_r2_imm2_imm5,
 169     rv_codec_fli,
 170 } rv_codec;
 171
 172 /* structures */
 173
 174 typedef struct {
 175     const int op;
 176     const rvc_constraint *constraints;
 177 } rv_comp_data;
 178
 179 typedef struct {
 180     const char * const name;
 181     const rv_codec codec;
 182     const char * const format;
 183     const rv_comp_data *pseudo;
 184     const short decomp_rv32;
 185     const short decomp_rv64;
 186     const short decomp_rv128;
 187     const short decomp_data;
 188 } rv_opcode_data;
 189
 190 typedef struct {
 191     RISCVCPUConfig *cfg;
 192     uint64_t  pc;
 193     uint64_t  inst;
 194     const rv_opcode_data *opcode_data;
 195     int32_t   imm;
 196     int32_t   imm1;
 197     uint16_t  op;
 198     uint8_t   codec;
 199     uint8_t   rd;
 200     uint8_t   rs1;
 201     uint8_t   rs2;
 202     uint8_t   rs3;
 203     uint8_t   rm;
 204     uint8_t   pred;
 205     uint8_t   succ;
 206     uint8_t   aq;
 207     uint8_t   rl;
 208     uint8_t   bs;
 209     uint8_t   rnum;
 210     uint8_t   vm;
 211     uint32_t  vzimm;
 212     uint8_t   rlist;
 213 } rv_decode;
 214
 215 enum {
 216     rv_op_illegal = 0
 217 };
 218
 219 enum {
 220     rvcd_imm_nz = 0x1
 221 };
 222
 223 /* instruction formats */
 224
 225 #define rv_fmt_none                   "O\t"
 226 #define rv_fmt_rs1                    "O\t1"
 227 #define rv_fmt_offset                 "O\to"
 228 #define rv_fmt_pred_succ              "O\tp,s"
 229 #define rv_fmt_rs1_rs2                "O\t1,2"
 230 #define rv_fmt_rd_imm                 "O\t0,i"
 231 #define rv_fmt_rd_uimm                "O\t0,Ui"
 232 #define rv_fmt_rd_offset              "O\t0,o"
 233 #define rv_fmt_rd_uoffset             "O\t0,Uo"
 234 #define rv_fmt_rd_rs1_rs2             "O\t0,1,2"
 235 #define rv_fmt_frd_rs1                "O\t3,1"
 236 #define rv_fmt_frd_rs1_rs2            "O\t3,1,2"
 237 #define rv_fmt_frd_frs1               "O\t3,4"
 238 #define rv_fmt_rd_frs1                "O\t0,4"
 239 #define rv_fmt_rd_frs1_frs2           "O\t0,4,5"
 240 #define rv_fmt_frd_frs1_frs2          "O\t3,4,5"
 241 #define rv_fmt_rm_frd_frs1            "O\tr,3,4"
 242 #define rv_fmt_rm_frd_rs1             "O\tr,3,1"
 243 #define rv_fmt_rm_rd_frs1             "O\tr,0,4"
 244 #define rv_fmt_rm_frd_frs1_frs2       "O\tr,3,4,5"
 245 #define rv_fmt_rm_frd_frs1_frs2_frs3  "O\tr,3,4,5,6"
 246 #define rv_fmt_rd_rs1_imm             "O\t0,1,i"
 247 #define rv_fmt_rd_rs1_offset          "O\t0,1,i"
 248 #define rv_fmt_rd_offset_rs1          "O\t0,i(1)"
 249 #define rv_fmt_frd_offset_rs1         "O\t3,i(1)"
 250 #define rv_fmt_rd_csr_rs1             "O\t0,c,1"
 251 #define rv_fmt_rd_csr_zimm            "O\t0,c,7"
 252 #define rv_fmt_rs2_offset_rs1         "O\t2,i(1)"
 253 #define rv_fmt_frs2_offset_rs1        "O\t5,i(1)"
 254 #define rv_fmt_rs1_rs2_offset         "O\t1,2,o"
 255 #define rv_fmt_rs2_rs1_offset         "O\t2,1,o"
 256 #define rv_fmt_aqrl_rd_rs2_rs1        "OAR\t0,2,(1)"
 257 #define rv_fmt_aqrl_rd_rs1            "OAR\t0,(1)"
 258 #define rv_fmt_rd                     "O\t0"
 259 #define rv_fmt_rd_zimm                "O\t0,7"
 260 #define rv_fmt_rd_rs1                 "O\t0,1"
 261 #define rv_fmt_rd_rs2                 "O\t0,2"
 262 #define rv_fmt_rs1_offset             "O\t1,o"
 263 #define rv_fmt_rs2_offset             "O\t2,o"
 264 #define rv_fmt_rs1_rs2_bs             "O\t1,2,b"
 265 #define rv_fmt_rd_rs1_rnum            "O\t0,1,n"
 266 #define rv_fmt_ldst_vd_rs1_vm         "O\tD,(1)m"
 267 #define rv_fmt_ldst_vd_rs1_rs2_vm     "O\tD,(1),2m"
 268 #define rv_fmt_ldst_vd_rs1_vs2_vm     "O\tD,(1),Fm"
 269 #define rv_fmt_vd_vs2_vs1             "O\tD,F,E"
 270 #define rv_fmt_vd_vs2_vs1_vl          "O\tD,F,El"
 271 #define rv_fmt_vd_vs2_vs1_vm          "O\tD,F,Em"
 272 #define rv_fmt_vd_vs2_rs1_vl          "O\tD,F,1l"
 273 #define rv_fmt_vd_vs2_fs1_vl          "O\tD,F,4l"
 274 #define rv_fmt_vd_vs2_rs1_vm          "O\tD,F,1m"
 275 #define rv_fmt_vd_vs2_fs1_vm          "O\tD,F,4m"
 276 #define rv_fmt_vd_vs2_imm_vl          "O\tD,F,il"
 277 #define rv_fmt_vd_vs2_imm_vm          "O\tD,F,im"
 278 #define rv_fmt_vd_vs2_uimm            "O\tD,F,u"
 279 #define rv_fmt_vd_vs2_uimm_vm         "O\tD,F,um"
 280 #define rv_fmt_vd_vs1_vs2_vm          "O\tD,E,Fm"
 281 #define rv_fmt_vd_rs1_vs2_vm          "O\tD,1,Fm"
 282 #define rv_fmt_vd_fs1_vs2_vm          "O\tD,4,Fm"
 283 #define rv_fmt_vd_vs1                 "O\tD,E"
 284 #define rv_fmt_vd_rs1                 "O\tD,1"
 285 #define rv_fmt_vd_fs1                 "O\tD,4"
 286 #define rv_fmt_vd_imm                 "O\tD,i"
 287 #define rv_fmt_vd_vs2                 "O\tD,F"
 288 #define rv_fmt_vd_vs2_vm              "O\tD,Fm"
 289 #define rv_fmt_rd_vs2_vm              "O\t0,Fm"
 290 #define rv_fmt_rd_vs2                 "O\t0,F"
 291 #define rv_fmt_fd_vs2                 "O\t3,F"
 292 #define rv_fmt_vd_vm                  "O\tDm"
 293 #define rv_fmt_vsetvli                "O\t0,1,v"
 294 #define rv_fmt_vsetivli               "O\t0,u,v"
 295 #define rv_fmt_rs1_rs2_zce_ldst       "O\t2,i(1)"
 296 #define rv_fmt_push_rlist             "O\tx,-i"
 297 #define rv_fmt_pop_rlist              "O\tx,i"
 298 #define rv_fmt_zcmt_index             "O\ti"
 299 #define rv_fmt_rd_rs1_rs2_imm         "O\t0,1,2,i"
 300 #define rv_fmt_frd_rs1_rs2_imm        "O\t3,1,2,i"
 301 #define rv_fmt_rd_rs1_immh_imml       "O\t0,1,i,j"
 302 #define rv_fmt_rd_rs1_immh_imml_addr  "O\t0,(1),i,j"
 303 #define rv_fmt_rd2_imm                "O\t0,2,(1),i"
 304 #define rv_fmt_fli                    "O\t3,h"
 305
 306 #endif /* DISAS_RISCV_H */