1 files changed, 282 insertions, 0 deletions
diff --git a/disas/riscv.h b/disas/riscv.h
new file mode 100644
index 0000000000..9288255915
--- /dev/null
+++ b/disas/riscv.h
@@ -0,0 +1,282 @@
+/*
+ * QEMU disassembler -- RISC-V specific header.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#ifndef DISAS_RISCV_H
+#define DISAS_RISCV_H
+
+#include "qemu/osdep.h"
+#include "target/riscv/cpu_cfg.h"
+
+/* types */
+
+typedef uint64_t rv_inst;
+typedef uint16_t rv_opcode;
+
+/* enums */
+
+typedef enum {
+    rv32,
+    rv64,
+    rv128
+} rv_isa;
+
+typedef enum {
+    rv_rm_rne = 0,
+    rv_rm_rtz = 1,
+    rv_rm_rdn = 2,
+    rv_rm_rup = 3,
+    rv_rm_rmm = 4,
+    rv_rm_dyn = 7,
+} rv_rm;
+
+typedef enum {
+    rv_fence_i = 8,
+    rv_fence_o = 4,
+    rv_fence_r = 2,
+    rv_fence_w = 1,
+} rv_fence;
+
+typedef enum {
+    rv_ireg_zero,
+    rv_ireg_ra,
+    rv_ireg_sp,
+    rv_ireg_gp,
+    rv_ireg_tp,
+    rv_ireg_t0,
+    rv_ireg_t1,
+    rv_ireg_t2,
+    rv_ireg_s0,
+    rv_ireg_s1,
+    rv_ireg_a0,
+    rv_ireg_a1,
+    rv_ireg_a2,
+    rv_ireg_a3,
+    rv_ireg_a4,
+    rv_ireg_a5,
+    rv_ireg_a6,
+    rv_ireg_a7,
+    rv_ireg_s2,
+    rv_ireg_s3,
+    rv_ireg_s4,
+    rv_ireg_s5,
+    rv_ireg_s6,
+    rv_ireg_s7,
+    rv_ireg_s8,
+    rv_ireg_s9,
+    rv_ireg_s10,
+    rv_ireg_s11,
+    rv_ireg_t3,
+    rv_ireg_t4,
+    rv_ireg_t5,
+    rv_ireg_t6,
+} rv_ireg;
+
+typedef enum {
+    rvc_end,
+    rvc_rd_eq_ra,
+    rvc_rd_eq_x0,
+    rvc_rs1_eq_x0,
+    rvc_rs2_eq_x0,
+    rvc_rs2_eq_rs1,
+    rvc_rs1_eq_ra,
+    rvc_imm_eq_zero,
+    rvc_imm_eq_n1,
+    rvc_imm_eq_p1,
+    rvc_csr_eq_0x001,
+    rvc_csr_eq_0x002,
+    rvc_csr_eq_0x003,
+    rvc_csr_eq_0xc00,
+    rvc_csr_eq_0xc01,
+    rvc_csr_eq_0xc02,
+    rvc_csr_eq_0xc80,
+    rvc_csr_eq_0xc81,
+    rvc_csr_eq_0xc82,
+} rvc_constraint;
+
+typedef enum {
+    rv_codec_illegal,
+    rv_codec_none,
+    rv_codec_u,
+    rv_codec_uj,
+    rv_codec_i,
+    rv_codec_i_sh5,
+    rv_codec_i_sh6,
+    rv_codec_i_sh7,
+    rv_codec_i_csr,
+    rv_codec_s,
+    rv_codec_sb,
+    rv_codec_r,
+    rv_codec_r_m,
+    rv_codec_r4_m,
+    rv_codec_r_a,
+    rv_codec_r_l,
+    rv_codec_r_f,
+    rv_codec_cb,
+    rv_codec_cb_imm,
+    rv_codec_cb_sh5,
+    rv_codec_cb_sh6,
+    rv_codec_ci,
+    rv_codec_ci_sh5,
+    rv_codec_ci_sh6,
+    rv_codec_ci_16sp,
+    rv_codec_ci_lwsp,
+    rv_codec_ci_ldsp,
+    rv_codec_ci_lqsp,
+    rv_codec_ci_li,
+    rv_codec_ci_lui,
+    rv_codec_ci_none,
+    rv_codec_ciw_4spn,
+    rv_codec_cj,
+    rv_codec_cj_jal,
+    rv_codec_cl_lw,
+    rv_codec_cl_ld,
+    rv_codec_cl_lq,
+    rv_codec_cr,
+    rv_codec_cr_mv,
+    rv_codec_cr_jalr,
+    rv_codec_cr_jr,
+    rv_codec_cs,
+    rv_codec_cs_sw,
+    rv_codec_cs_sd,
+    rv_codec_cs_sq,
+    rv_codec_css_swsp,
+    rv_codec_css_sdsp,
+    rv_codec_css_sqsp,
+    rv_codec_k_bs,
+    rv_codec_k_rnum,
+    rv_codec_v_r,
+    rv_codec_v_ldst,
+    rv_codec_v_i,
+    rv_codec_vsetvli,
+    rv_codec_vsetivli,
+    rv_codec_zcb_ext,
+    rv_codec_zcb_mul,
+    rv_codec_zcb_lb,
+    rv_codec_zcb_lh,
+    rv_codec_zcmp_cm_pushpop,
+    rv_codec_zcmp_cm_mv,
+    rv_codec_zcmt_jt,
+} rv_codec;
+
+/* structures */
+
+typedef struct {
+    RISCVCPUConfig *cfg;
+    uint64_t  pc;
+    uint64_t  inst;
+    int32_t   imm;
+    uint16_t  op;
+    uint8_t   codec;
+    uint8_t   rd;
+    uint8_t   rs1;
+    uint8_t   rs2;
+    uint8_t   rs3;
+    uint8_t   rm;
+    uint8_t   pred;
+    uint8_t   succ;
+    uint8_t   aq;
+    uint8_t   rl;
+    uint8_t   bs;
+    uint8_t   rnum;
+    uint8_t   vm;
+    uint32_t  vzimm;
+    uint8_t   rlist;
+} rv_decode;
+
+typedef struct {
+    const int op;
+    const rvc_constraint *constraints;
+} rv_comp_data;
+
+enum {
+    rvcd_imm_nz = 0x1
+};
+
+typedef struct {
+    const char * const name;
+    const rv_codec codec;
+    const char * const format;
+    const rv_comp_data *pseudo;
+    const short decomp_rv32;
+    const short decomp_rv64;
+    const short decomp_rv128;
+    const short decomp_data;
+} rv_opcode_data;
+
+/* instruction formats */
+
+#define rv_fmt_none                   "O\t"
+#define rv_fmt_rs1                    "O\t1"
+#define rv_fmt_offset                 "O\to"
+#define rv_fmt_pred_succ              "O\tp,s"
+#define rv_fmt_rs1_rs2                "O\t1,2"
+#define rv_fmt_rd_imm                 "O\t0,i"
+#define rv_fmt_rd_offset              "O\t0,o"
+#define rv_fmt_rd_rs1_rs2             "O\t0,1,2"
+#define rv_fmt_frd_rs1                "O\t3,1"
+#define rv_fmt_frd_frs1               "O\t3,4"
+#define rv_fmt_rd_frs1                "O\t0,4"
+#define rv_fmt_rd_frs1_frs2           "O\t0,4,5"
+#define rv_fmt_frd_frs1_frs2          "O\t3,4,5"
+#define rv_fmt_rm_frd_frs1            "O\tr,3,4"
+#define rv_fmt_rm_frd_rs1             "O\tr,3,1"
+#define rv_fmt_rm_rd_frs1             "O\tr,0,4"
+#define rv_fmt_rm_frd_frs1_frs2       "O\tr,3,4,5"
+#define rv_fmt_rm_frd_frs1_frs2_frs3  "O\tr,3,4,5,6"
+#define rv_fmt_rd_rs1_imm             "O\t0,1,i"
+#define rv_fmt_rd_rs1_offset          "O\t0,1,i"
+#define rv_fmt_rd_offset_rs1          "O\t0,i(1)"
+#define rv_fmt_frd_offset_rs1         "O\t3,i(1)"
+#define rv_fmt_rd_csr_rs1             "O\t0,c,1"
+#define rv_fmt_rd_csr_zimm            "O\t0,c,7"
+#define rv_fmt_rs2_offset_rs1         "O\t2,i(1)"
+#define rv_fmt_frs2_offset_rs1        "O\t5,i(1)"
+#define rv_fmt_rs1_rs2_offset         "O\t1,2,o"
+#define rv_fmt_rs2_rs1_offset         "O\t2,1,o"
+#define rv_fmt_aqrl_rd_rs2_rs1        "OAR\t0,2,(1)"
+#define rv_fmt_aqrl_rd_rs1            "OAR\t0,(1)"
+#define rv_fmt_rd                     "O\t0"
+#define rv_fmt_rd_zimm                "O\t0,7"
+#define rv_fmt_rd_rs1                 "O\t0,1"
+#define rv_fmt_rd_rs2                 "O\t0,2"
+#define rv_fmt_rs1_offset             "O\t1,o"
+#define rv_fmt_rs2_offset             "O\t2,o"
+#define rv_fmt_rs1_rs2_bs             "O\t1,2,b"
+#define rv_fmt_rd_rs1_rnum            "O\t0,1,n"
+#define rv_fmt_ldst_vd_rs1_vm         "O\tD,(1)m"
+#define rv_fmt_ldst_vd_rs1_rs2_vm     "O\tD,(1),2m"
+#define rv_fmt_ldst_vd_rs1_vs2_vm     "O\tD,(1),Fm"
+#define rv_fmt_vd_vs2_vs1             "O\tD,F,E"
+#define rv_fmt_vd_vs2_vs1_vl          "O\tD,F,El"
+#define rv_fmt_vd_vs2_vs1_vm          "O\tD,F,Em"
+#define rv_fmt_vd_vs2_rs1_vl          "O\tD,F,1l"
+#define rv_fmt_vd_vs2_fs1_vl          "O\tD,F,4l"
+#define rv_fmt_vd_vs2_rs1_vm          "O\tD,F,1m"
+#define rv_fmt_vd_vs2_fs1_vm          "O\tD,F,4m"
+#define rv_fmt_vd_vs2_imm_vl          "O\tD,F,il"
+#define rv_fmt_vd_vs2_imm_vm          "O\tD,F,im"
+#define rv_fmt_vd_vs2_uimm_vm         "O\tD,F,um"
+#define rv_fmt_vd_vs1_vs2_vm          "O\tD,E,Fm"
+#define rv_fmt_vd_rs1_vs2_vm          "O\tD,1,Fm"
+#define rv_fmt_vd_fs1_vs2_vm          "O\tD,4,Fm"
+#define rv_fmt_vd_vs1                 "O\tD,E"
+#define rv_fmt_vd_rs1                 "O\tD,1"
+#define rv_fmt_vd_fs1                 "O\tD,4"
+#define rv_fmt_vd_imm                 "O\tD,i"
+#define rv_fmt_vd_vs2                 "O\tD,F"
+#define rv_fmt_vd_vs2_vm              "O\tD,Fm"
+#define rv_fmt_rd_vs2_vm              "O\t0,Fm"
+#define rv_fmt_rd_vs2                 "O\t0,F"
+#define rv_fmt_fd_vs2                 "O\t3,F"
+#define rv_fmt_vd_vm                  "O\tDm"
+#define rv_fmt_vsetvli                "O\t0,1,v"
+#define rv_fmt_vsetivli               "O\t0,u,v"
+#define rv_fmt_rs1_rs2_zce_ldst       "O\t2,i(1)"
+#define rv_fmt_push_rlist             "O\tx,-i"
+#define rv_fmt_pop_rlist              "O\tx,i"
+#define rv_fmt_zcmt_index             "O\ti"
+
+#endif /* DISAS_RISCV_H */