#include <sys/param.h>
#include <sys/systm.h>
#include <ddb/ddb.h>
#include <ddb/db_access.h>
#include <ddb/db_sym.h>
#include <machine/encoding.h>
#define X_RA 1
#define X_SP 2
#define X_GP 3
#define X_TP 4
#define X_T0 5
#define X_T1 6
#define X_T2 7
#define X_T3 28
#define RD_SHIFT 7
#define RD_MASK (0x1f << RD_SHIFT)
#define RS1_SHIFT 15
#define RS1_MASK (0x1f << RS1_SHIFT)
#define RS2_SHIFT 20
#define RS2_MASK (0x1f << RS2_SHIFT)
#define IMM_SHIFT 20
#define IMM_MASK (0xfff << IMM_SHIFT)
static char *reg_name[32] = {
"zero", "ra", "sp", "gp", "tp", "t0", "t1", "t2",
"s0", "s1", "a0", "a1", "a2", "a3", "a4", "a5",
"a6", "a7", "s2", "s3", "s4", "s5", "s6", "s7",
"s8", "s9", "s10", "s11", "t3", "t4", "t5", "t6"
};
static char *fp_reg_name[32] = {
"ft0", "ft1", "ft2", "ft3", "ft4", "ft5", "ft6", "ft7",
"fs0", "fs1", "fa0", "fa1", "fa2", "fa3", "fa4", "fa5",
"fa6", "fa7", "fs2", "fs3", "fs4", "fs5", "fs6", "fs7",
"fs8", "fs9", "fs10", "fs11", "ft8", "ft9", "ft10", "ft11"
};
struct riscv_op {
char *name;
char *fmt;
int match;
int mask;
int (*match_func)(struct riscv_op *op, uint32_t insn);
};
static int
m_op(struct riscv_op *op, uint32_t insn)
{
if (((insn ^ op->match) & op->mask) == 0)
return (1);
return (0);
}
static struct riscv_op riscv_opcodes[] = {
{"ret","", MATCH_JALR | (X_RA << RS1_SHIFT),
MASK_JALR | RD_MASK | RS1_MASK | IMM_MASK, m_op },
{ "beq", "s,t,p", MATCH_BEQ, MASK_BEQ, m_op },
{ "bne", "s,t,p", MATCH_BNE, MASK_BNE, m_op },
{ "blt", "s,t,p", MATCH_BLT, MASK_BLT, m_op },
{ "bge", "s,t,p", MATCH_BGE, MASK_BGE, m_op },
{ "bltu", "s,t,p", MATCH_BLTU, MASK_BLTU, m_op },
{ "bgeu", "s,t,p", MATCH_BGEU, MASK_BGEU, m_op },
{ "jalr", "d,o(s)", MATCH_JALR, MASK_JALR, m_op },
{ "jal", "d,a", MATCH_JAL, MASK_JAL, m_op },
{ "lui", "d,u", MATCH_LUI, MASK_LUI, m_op },
{ "auipc", "d,u", MATCH_AUIPC, MASK_AUIPC, m_op },
{ "addi", "d,s,j", MATCH_ADDI, MASK_ADDI, m_op },
{ "slli", "d,s,>", MATCH_SLLI, MASK_SLLI, m_op },
{ "slti", "d,s,j", MATCH_SLTI, MASK_SLTI, m_op },
{ "sltiu", "d,s,j", MATCH_SLTIU, MASK_SLTIU, m_op },
{ "xori", "d,s,j", MATCH_XORI, MASK_XORI, m_op },
{ "srli", "d,s,>", MATCH_SRLI, MASK_SRLI, m_op },
{ "srai", "d,s,>", MATCH_SRAI, MASK_SRAI, m_op },
{ "ori", "d,s,j", MATCH_ORI, MASK_ORI, m_op },
{ "andi", "d,s,j", MATCH_ANDI, MASK_ANDI, m_op },
{ "add", "d,s,t", MATCH_ADD, MASK_ADD, m_op },
{ "sub", "d,s,t", MATCH_SUB, MASK_SUB, m_op },
{ "sll", "d,s,t", MATCH_SLL, MASK_SLL, m_op },
{ "slt", "d,s,t", MATCH_SLT, MASK_SLT, m_op },
{ "sltu", "d,s,t", MATCH_SLTU, MASK_SLTU, m_op },
{ "xor", "d,s,t", MATCH_XOR, MASK_XOR, m_op },
{ "srl", "d,s,t", MATCH_SRL, MASK_SRL, m_op },
{ "sra", "d,s,t", MATCH_SRA, MASK_SRA, m_op },
{ "or", "d,s,t", MATCH_OR, MASK_OR, m_op },
{ "and", "d,s,t", MATCH_AND, MASK_AND, m_op },
{ "addiw", "d,s,j", MATCH_ADDIW, MASK_ADDIW, m_op },
{ "slliw", "d,s,<", MATCH_SLLIW, MASK_SLLIW, m_op },
{ "srliw", "d,s,<", MATCH_SRLIW, MASK_SRLIW, m_op },
{ "sraiw", "d,s,<", MATCH_SRAIW, MASK_SRAIW, m_op },
{ "addw", "d,s,t", MATCH_ADDW, MASK_ADDW, m_op },
{ "subw", "d,s,t", MATCH_SUBW, MASK_SUBW, m_op },
{ "sllw", "d,s,t", MATCH_SLLW, MASK_SLLW, m_op },
{ "srlw", "d,s,t", MATCH_SRLW, MASK_SRLW, m_op },
{ "sraw", "d,s,t", MATCH_SRAW, MASK_SRAW, m_op },
{ "lb", "d,o(s)", MATCH_LB, MASK_LB, m_op },
{ "lh", "d,o(s)", MATCH_LH, MASK_LH, m_op },
{ "lw", "d,o(s)", MATCH_LW, MASK_LW, m_op },
{ "ld", "d,o(s)", MATCH_LD, MASK_LD, m_op },
{ "lbu", "d,o(s)", MATCH_LBU, MASK_LBU, m_op },
{ "lhu", "d,o(s)", MATCH_LHU, MASK_LHU, m_op },
{ "lwu", "d,o(s)", MATCH_LWU, MASK_LWU, m_op },
{ "sb", "t,q(s)", MATCH_SB, MASK_SB, m_op },
{ "sh", "t,q(s)", MATCH_SH, MASK_SH, m_op },
{ "sw", "t,q(s)", MATCH_SW, MASK_SW, m_op },
{ "sd", "t,q(s)", MATCH_SD, MASK_SD, m_op },
{ "fence", "P,Q", MATCH_FENCE, MASK_FENCE, m_op },
{ "fence.i", "", MATCH_FENCE_I, MASK_FENCE_I, m_op },
{ "mul", "d,s,t", MATCH_MUL, MASK_MUL, m_op },
{ "mulh", "d,s,t", MATCH_MULH, MASK_MULH, m_op },
{ "mulhsu", "d,s,t", MATCH_MULHSU, MASK_MULHSU, m_op },
{ "mulhu", "d,s,t", MATCH_MULHU, MASK_MULHU, m_op },
{ "div", "d,s,t", MATCH_DIV, MASK_DIV, m_op },
{ "divu", "d,s,t", MATCH_DIVU, MASK_DIVU, m_op },
{ "rem", "d,s,t", MATCH_REM, MASK_REM, m_op },
{ "remu", "d,s,t", MATCH_REMU, MASK_REMU, m_op },
{ "mulw", "d,s,t", MATCH_MULW, MASK_MULW, m_op },
{ "divw", "d,s,t", MATCH_DIVW, MASK_DIVW, m_op },
{ "divuw", "d,s,t", MATCH_DIVUW, MASK_DIVUW, m_op },
{ "remw", "d,s,t", MATCH_REMW, MASK_REMW, m_op },
{ "remuw", "d,s,t", MATCH_REMUW, MASK_REMUW, m_op },
{ "amoadd.w", "d,t,0(s)", MATCH_AMOADD_W, MASK_AMOADD_W, m_op },
{ "amoxor.w", "d,t,0(s)", MATCH_AMOXOR_W, MASK_AMOXOR_W, m_op },
{ "amoor.w", "d,t,0(s)", MATCH_AMOOR_W, MASK_AMOOR_W, m_op },
{ "amoand.w", "d,t,0(s)", MATCH_AMOAND_W, MASK_AMOAND_W, m_op },
{ "amomin.w", "d,t,0(s)", MATCH_AMOMIN_W, MASK_AMOMIN_W, m_op },
{ "amomax.w", "d,t,0(s)", MATCH_AMOMAX_W, MASK_AMOMAX_W, m_op },
{ "amominu.w", "d,t,0(s)", MATCH_AMOMINU_W, MASK_AMOMINU_W,m_op },
{ "amomaxu.w", "d,t,0(s)", MATCH_AMOMAXU_W, MASK_AMOMAXU_W,m_op },
{ "amoswap.w", "d,t,0(s)", MATCH_AMOSWAP_W, MASK_AMOSWAP_W,m_op },
{ "lr.w", "d,0(s)", MATCH_LR_W, MASK_LR_W, m_op },
{ "sc.w", "d,t,0(s)", MATCH_SC_W, MASK_SC_W, m_op },
{ "amoadd.d", "d,t,0(s)", MATCH_AMOADD_D, MASK_AMOADD_D, m_op },
{ "amoxor.d", "d,t,0(s)", MATCH_AMOXOR_D, MASK_AMOXOR_D, m_op },
{ "amoor.d", "d,t,0(s)", MATCH_AMOOR_D, MASK_AMOOR_D, m_op },
{ "amoand.d", "d,t,0(s)", MATCH_AMOAND_D, MASK_AMOAND_D, m_op },
{ "amomin.d", "d,t,0(s)", MATCH_AMOMIN_D, MASK_AMOMIN_D, m_op },
{ "amomax.d", "d,t,0(s)", MATCH_AMOMAX_D, MASK_AMOMAX_D, m_op },
{ "amominu.d", "d,t,0(s)", MATCH_AMOMINU_D, MASK_AMOMINU_D,m_op },
{ "amomaxu.d", "d,t,0(s)", MATCH_AMOMAXU_D, MASK_AMOMAXU_D,m_op },
{ "amoswap.d", "d,t,0(s)", MATCH_AMOSWAP_D, MASK_AMOSWAP_D,m_op },
{ "lr.d", "d,0(s)", MATCH_LR_D, MASK_LR_D, m_op },
{ "sc.d", "d,t,0(s)", MATCH_SC_D, MASK_SC_D, m_op },
{ "ecall", "", MATCH_ECALL, MASK_ECALL, m_op },
{ "ebreak", "", MATCH_EBREAK, MASK_EBREAK, m_op },
{ "uret", "", MATCH_URET, MASK_URET, m_op },
{ "sret", "", MATCH_SRET, MASK_SRET, m_op },
{ "mret", "", MATCH_MRET, MASK_MRET, m_op },
{ "dret", "", MATCH_DRET, MASK_DRET, m_op },
{ "sfence.vma", "", MATCH_SFENCE_VMA, MASK_SFENCE_VMA, m_op },
{ "wfi", "", MATCH_WFI, MASK_WFI, m_op },
{ "csrrw", "d,E,s", MATCH_CSRRW, MASK_CSRRW, m_op },
{ "csrrs", "d,E,s", MATCH_CSRRS, MASK_CSRRS, m_op },
{ "csrrc", "d,E,s", MATCH_CSRRC, MASK_CSRRC, m_op },
{ "csrrwi", "d,E,Z", MATCH_CSRRWI, MASK_CSRRWI, m_op },
{ "csrrsi", "d,E,Z", MATCH_CSRRSI, MASK_CSRRSI, m_op },
{ "csrrci", "d,E,Z", MATCH_CSRRCI, MASK_CSRRCI, m_op },
{ "fadd.s", "D,S,T", MATCH_FADD_S, MASK_FADD_S, m_op },
{ "fsub.s", "D,S,T", MATCH_FSUB_S, MASK_FSUB_S, m_op },
{ "fmul.s", "D,S,T", MATCH_FMUL_S, MASK_FMUL_S, m_op },
{ "fdiv.s", "D,S,T", MATCH_FDIV_S, MASK_FDIV_S, m_op },
{ "fsgnj.s", "D,S,T", MATCH_FSGNJ_S, MASK_FSGNJ_S, m_op },
{ "fsgnjn.s", "D,S,T", MATCH_FSGNJN_S, MASK_FSGNJN_S, m_op },
{ "fsgnjx.s", "D,S,T", MATCH_FSGNJX_S, MASK_FSGNJX_S, m_op },
{ "fmin.s", "D,S,T", MATCH_FMIN_S, MASK_FMIN_S, m_op },
{ "fmax.s", "D,S,T", MATCH_FMAX_S, MASK_FMAX_S, m_op },
{ "fsqrt.s", "D,S", MATCH_FSQRT_S, MASK_FSQRT_S, m_op },
{ "fadd.d", "D,S,T", MATCH_FADD_D, MASK_FADD_D, m_op },
{ "fsub.d", "D,S,T", MATCH_FSUB_D, MASK_FSUB_D, m_op },
{ "fmul.d", "D,S,T", MATCH_FMUL_D, MASK_FMUL_D, m_op },
{ "fdiv.d", "D,S,T", MATCH_FDIV_D, MASK_FDIV_D, m_op },
{ "fsgnj.d", "D,S,T", MATCH_FSGNJ_D, MASK_FSGNJ_D, m_op },
{ "fsgnjn.d", "D,S,T", MATCH_FSGNJN_D, MASK_FSGNJN_D, m_op },
{ "fsgnjx.d", "D,S,T", MATCH_FSGNJX_D, MASK_FSGNJX_D, m_op },
{ "fmin.d", "D,S,T", MATCH_FMIN_D, MASK_FMIN_D, m_op },
{ "fmax.d", "D,S,T", MATCH_FMAX_D, MASK_FMAX_D, m_op },
{ "fcvt.s.d", "D,S", MATCH_FCVT_S_D, MASK_FCVT_S_D, m_op },
{ "fcvt.d.s", "D,S", MATCH_FCVT_D_S, MASK_FCVT_D_S, m_op },
{ "fsqrt.d", "D,S", MATCH_FSQRT_D, MASK_FSQRT_D, m_op },
{ "fadd.q", "D,S,T", MATCH_FADD_Q, MASK_FADD_Q, m_op },
{ "fsub.q", "D,S,T", MATCH_FSUB_Q, MASK_FSUB_Q, m_op },
{ "fmul.q", "D,S,T", MATCH_FMUL_Q, MASK_FMUL_Q, m_op },
{ "fdiv.q", "D,S,T", MATCH_FDIV_Q, MASK_FDIV_Q, m_op },
{ "fsgnj.q", "D,S,T", MATCH_FSGNJ_Q, MASK_FSGNJ_Q, m_op },
{ "fsgnjn.q", "D,S,T", MATCH_FSGNJN_Q, MASK_FSGNJN_Q, m_op },
{ "fsgnjx.q", "D,S,T", MATCH_FSGNJX_Q, MASK_FSGNJX_Q, m_op },
{ "fmin.q", "D,S,T", MATCH_FMIN_Q, MASK_FMIN_Q, m_op },
{ "fmax.q", "D,S,T", MATCH_FMAX_Q, MASK_FMAX_Q, m_op },
{ "fcvt.s.q", "D,S", MATCH_FCVT_S_Q, MASK_FCVT_S_Q, m_op },
{ "fcvt.q.s", "D,S", MATCH_FCVT_Q_S, MASK_FCVT_Q_S, m_op },
{ "fcvt.d.q", "D,S", MATCH_FCVT_D_Q, MASK_FCVT_D_Q, m_op },
{ "fcvt.q.d", "D,S", MATCH_FCVT_Q_D, MASK_FCVT_Q_D, m_op },
{ "fsqrt.q", "D,S", MATCH_FSQRT_Q, MASK_FSQRT_Q, m_op },
{ "fle.s", "d,S,T", MATCH_FLE_S, MASK_FLE_S, m_op },
{ "flt.s", "d,S,T", MATCH_FLT_S, MASK_FLT_S, m_op },
{ "feq.s", "d,S,T", MATCH_FEQ_S, MASK_FEQ_S, m_op },
{ "fle.d", "d,S,T", MATCH_FLE_D, MASK_FLE_D, m_op },
{ "flt.d", "d,S,T", MATCH_FLT_D, MASK_FLT_D, m_op },
{ "feq.d", "d,S,T", MATCH_FEQ_D, MASK_FEQ_D, m_op },
{ "fle.q", "d,S,T", MATCH_FLE_Q, MASK_FLE_Q, m_op },
{ "flt.q", "d,S,T", MATCH_FLT_Q, MASK_FLT_Q, m_op },
{ "feq.q", "d,S,T", MATCH_FEQ_Q, MASK_FEQ_Q, m_op },
{ "fcvt.w.s", "d,S", MATCH_FCVT_W_S, MASK_FCVT_W_S, m_op },
{ "fcvt.wu.s", "d,S", MATCH_FCVT_WU_S, MASK_FCVT_WU_S,m_op },
{ "fcvt.l.s", "d,S", MATCH_FCVT_L_S, MASK_FCVT_L_S, m_op },
{ "fcvt.lu.s", "d,S", MATCH_FCVT_LU_S, MASK_FCVT_LU_S,m_op },
{ "fmv.x.w", "d,S", MATCH_FMV_X_W, MASK_FMV_X_W, m_op },
{ "fclass.s", "d,S", MATCH_FCLASS_S, MASK_FCLASS_S, m_op },
{ "fcvt.w.d", "d,S", MATCH_FCVT_W_D, MASK_FCVT_W_D, m_op },
{ "fcvt.wu.d", "d,S", MATCH_FCVT_WU_D, MASK_FCVT_WU_D,m_op },
{ "fcvt.l.d", "d,S", MATCH_FCVT_L_D, MASK_FCVT_L_D, m_op },
{ "fcvt.lu.d", "d,S", MATCH_FCVT_LU_D, MASK_FCVT_LU_D,m_op },
{ "fmv.x.d", "d,S", MATCH_FMV_X_D, MASK_FMV_X_D, m_op },
{ "fclass.d", "d,S", MATCH_FCLASS_D, MASK_FCLASS_D, m_op },
{ "fcvt.w.q", "d,S", MATCH_FCVT_W_Q, MASK_FCVT_W_Q, m_op },
{ "fcvt.wu.q", "d,S", MATCH_FCVT_WU_Q, MASK_FCVT_WU_Q,m_op },
{ "fcvt.l.q", "d,S", MATCH_FCVT_L_Q, MASK_FCVT_L_Q, m_op },
{ "fcvt.lu.q", "d,S", MATCH_FCVT_LU_Q, MASK_FCVT_LU_Q,m_op },
{ "fmv.x.q", "d,S", MATCH_FMV_X_Q, MASK_FMV_X_Q, m_op },
{ "fclass.q", "d,S", MATCH_FCLASS_Q, MASK_FCLASS_Q, m_op },
{ "fcvt.s.w", "D,s", MATCH_FCVT_S_W, MASK_FCVT_S_W, m_op },
{ "fcvt.s.wu", "D,s", MATCH_FCVT_S_WU, MASK_FCVT_S_WU,m_op },
{ "fcvt.s.l", "D,s", MATCH_FCVT_S_L, MASK_FCVT_S_L, m_op },
{ "fcvt.s.lu", "D,s", MATCH_FCVT_S_LU, MASK_FCVT_S_LU,m_op },
{ "fmv.w.x", "D,s", MATCH_FMV_W_X, MASK_FMV_W_X, m_op },
{ "fcvt.d.w", "D,s", MATCH_FCVT_D_W, MASK_FCVT_D_W, m_op },
{ "fcvt.d.wu", "D,s", MATCH_FCVT_D_WU, MASK_FCVT_D_WU,m_op },
{ "fcvt.d.l", "D,s", MATCH_FCVT_D_L, MASK_FCVT_D_L, m_op },
{ "fcvt.d.lu", "D,s", MATCH_FCVT_D_LU, MASK_FCVT_D_LU,m_op },
{ "fmv.d.x", "D,s", MATCH_FMV_D_X, MASK_FMV_D_X, m_op },
{ "fcvt.q.w", "D,s", MATCH_FCVT_Q_W, MASK_FCVT_Q_W, m_op },
{ "fcvt.q.wu", "D,s", MATCH_FCVT_Q_WU, MASK_FCVT_Q_WU,m_op },
{ "fcvt.q.l", "D,s", MATCH_FCVT_Q_L, MASK_FCVT_Q_L, m_op },
{ "fcvt.q.lu", "D,s", MATCH_FCVT_Q_LU, MASK_FCVT_Q_LU,m_op },
{ "fmv.q.x", "D,s", MATCH_FMV_Q_X, MASK_FMV_Q_X, m_op },
{ "flw", "D,o(s)", MATCH_FLW, MASK_FLW, m_op },
{ "fld", "D,o(s)", MATCH_FLD, MASK_FLD, m_op },
{ "flq", "D,o(s)", MATCH_FLQ, MASK_FLQ, m_op },
{ "fsw", "T,q(s)", MATCH_FSW, MASK_FSW, m_op },
{ "fsd", "T,q(s)", MATCH_FSD, MASK_FSD, m_op },
{ "fsq", "T,q(s)", MATCH_FSQ, MASK_FSQ, m_op },
{ "fmadd.s", "D,S,T,R", MATCH_FMADD_S, MASK_FMADD_S, m_op },
{ "fmsub.s", "D,S,T,R", MATCH_FMSUB_S, MASK_FMSUB_S, m_op },
{ "fnmsub.s", "D,S,T,R", MATCH_FNMSUB_S, MASK_FNMSUB_S, m_op },
{ "fnmadd.s", "D,S,T,R", MATCH_FNMADD_S, MASK_FNMADD_S, m_op },
{ "fmadd.d", "D,S,T,R", MATCH_FMADD_D, MASK_FMADD_D, m_op },
{ "fmsub.d", "D,S,T,R", MATCH_FMSUB_D, MASK_FMSUB_D, m_op },
{ "fnmsub.d", "D,S,T,R", MATCH_FNMSUB_D, MASK_FNMSUB_D, m_op },
{ "fnmadd.d", "D,S,T,R", MATCH_FNMADD_D, MASK_FNMADD_D, m_op },
{ "fmadd.q", "D,S,T,R", MATCH_FMADD_Q, MASK_FMADD_Q, m_op },
{ "fmsub.q", "D,S,T,R", MATCH_FMSUB_Q, MASK_FMSUB_Q, m_op },
{ "fnmsub.q", "D,S,T,R", MATCH_FNMSUB_Q, MASK_FNMSUB_Q, m_op },
{ "fnmadd.q", "D,S,T,R", MATCH_FNMADD_Q, MASK_FNMADD_Q, m_op },
{ NULL, NULL, 0, 0, NULL },
};
static struct riscv_op riscv_c_opcodes[] = {
{ "ret","",MATCH_C_JR | (X_RA << RD_SHIFT), MASK_C_JR | RD_MASK, m_op},
{ "c.nop", "", MATCH_C_NOP, MASK_C_NOP, m_op },
{ "c.ebreak", "", MATCH_C_EBREAK, MASK_C_EBREAK, m_op },
{ "c.jr", "d", MATCH_C_JR, MASK_C_JR, m_op },
{ "c.jalr", "d", MATCH_C_JALR, MASK_C_JALR, m_op },
{ "c.jal", "Ca", MATCH_C_JAL, MASK_C_JAL, m_op },
{ "c.ld", "Ct,Cl(Cs)", MATCH_C_LD, MASK_C_LD, m_op },
{ "c.sd", "Ct,Cl(Cs)", MATCH_C_SD, MASK_C_SD, m_op },
{ "c.addiw", "d,Co", MATCH_C_ADDIW, MASK_C_ADDIW, m_op },
{ "c.ldsp", "d,Cn(Cc)", MATCH_C_LDSP, MASK_C_LDSP, m_op },
{ "c.sdsp", "CV,CN(Cc)", MATCH_C_SDSP, MASK_C_SDSP, m_op },
{ "c.addi4spn", "", MATCH_C_ADDI4SPN, MASK_C_ADDI4SPN, m_op },
{ "c.addi16sp", "", MATCH_C_ADDI16SP, MASK_C_ADDI16SP, m_op },
{ "c.fld", "CD,Cl(Cs)", MATCH_C_FLD, MASK_C_FLD, m_op },
{ "c.lw", "Ct,Ck(Cs)", MATCH_C_LW, MASK_C_LW, m_op },
{ "c.flw", "CD,Ck(Cs)", MATCH_C_FLW, MASK_C_FLW, m_op },
{ "c.fsd", "CD,Cl(Cs)", MATCH_C_FSD, MASK_C_FSD, m_op },
{ "c.sw", "Ct,Ck(Cs)", MATCH_C_SW, MASK_C_SW, m_op },
{ "c.fsw", "CD,Ck(Cs)", MATCH_C_FSW, MASK_C_FSW, m_op },
{ "c.addi", "d,Co", MATCH_C_ADDI, MASK_C_ADDI, m_op },
{ "c.li", "d,Co", MATCH_C_LI, MASK_C_LI, m_op },
{ "c.lui", "d,Cu", MATCH_C_LUI, MASK_C_LUI, m_op },
{ "c.srli", "Cs,C>", MATCH_C_SRLI, MASK_C_SRLI, m_op },
{ "c.srai", "Cs,C>", MATCH_C_SRAI, MASK_C_SRAI, m_op },
{ "c.andi", "Cs,Co", MATCH_C_ANDI, MASK_C_ANDI, m_op },
{ "c.sub", "Cs,Ct", MATCH_C_SUB, MASK_C_SUB, m_op },
{ "c.xor", "Cs,Ct", MATCH_C_XOR, MASK_C_XOR, m_op },
{ "c.or", "Cs,Ct", MATCH_C_OR, MASK_C_OR, m_op },
{ "c.and", "Cs,Ct", MATCH_C_AND, MASK_C_AND, m_op },
{ "c.subw", "Cs,Ct", MATCH_C_SUBW, MASK_C_SUBW, m_op },
{ "c.addw", "Cs,Ct", MATCH_C_ADDW, MASK_C_ADDW, m_op },
{ "c.j", "Ca", MATCH_C_J, MASK_C_J, m_op },
{ "c.beqz", "Cs,Cp", MATCH_C_BEQZ, MASK_C_BEQZ, m_op },
{ "c.bnez", "Cs,Cp", MATCH_C_BNEZ, MASK_C_BNEZ, m_op },
{ "c.slli", "d,C>", MATCH_C_SLLI, MASK_C_SLLI, m_op },
{ "c.fldsp", "D,Cn(Cc)", MATCH_C_FLDSP, MASK_C_FLDSP, m_op },
{ "c.lwsp", "d,Cm(Cc)", MATCH_C_LWSP, MASK_C_LWSP, m_op },
{ "c.flwsp", "D,Cm(Cc)", MATCH_C_FLWSP, MASK_C_FLWSP, m_op },
{ "c.mv", "d,CV", MATCH_C_MV, MASK_C_MV, m_op },
{ "c.add", "d,CV", MATCH_C_ADD, MASK_C_ADD, m_op },
{ "c.fsdsp", "CT,CN(Cc)", MATCH_C_FSDSP, MASK_C_FSDSP, m_op },
{ "c.swsp", "CV,CM(Cc)", MATCH_C_SWSP, MASK_C_SWSP, m_op },
{ "c.fswsp", "CT,CM(Cc)", MATCH_C_FSWSP, MASK_C_FSWSP, m_op },
{ NULL, NULL, 0, 0, NULL },
};
static int
oprint(struct riscv_op *op, vm_offset_t loc, int insn)
{
uint32_t rd, rs1, rs2, rs3;
uint32_t val;
const char *csr_name;
int imm;
char *p;
p = op->fmt;
rd = (insn & RD_MASK) >> RD_SHIFT;
rs1 = (insn & RS1_MASK) >> RS1_SHIFT;
rs2 = (insn & RS2_MASK) >> RS2_SHIFT;
db_printf("%s\t", op->name);
while (*p) {
switch (*p) {
case 'C':
switch (*++p) {
case 't':
rd = (insn >> 2) & 0x7;
rd += 0x8;
db_printf("%s", reg_name[rd]);
break;
case 's':
rs2 = (insn >> 7) & 0x7;
rs2 += 0x8;
db_printf("%s", reg_name[rs2]);
break;
case 'l':
imm = ((insn >> 10) & 0x7) << 3;
imm |= ((insn >> 5) & 0x3) << 6;
if (imm & (1 << 8))
imm |= 0xffffff << 8;
db_printf("%d", imm);
break;
case 'k':
imm = ((insn >> 10) & 0x7) << 3;
imm |= ((insn >> 6) & 0x1) << 2;
imm |= ((insn >> 5) & 0x1) << 6;
if (imm & (1 << 8))
imm |= 0xffffff << 8;
db_printf("%d", imm);
break;
case 'c':
db_printf("sp");
break;
case 'n':
imm = ((insn >> 5) & 0x3) << 3;
imm |= ((insn >> 12) & 0x1) << 5;
imm |= ((insn >> 2) & 0x7) << 6;
if (imm & (1 << 8))
imm |= 0xffffff << 8;
db_printf("%d", imm);
break;
case 'N':
imm = ((insn >> 10) & 0x7) << 3;
imm |= ((insn >> 7) & 0x7) << 6;
if (imm & (1 << 8))
imm |= 0xffffff << 8;
db_printf("%d", imm);
break;
case 'u':
imm = ((insn >> 2) & 0x1f) << 0;
imm |= ((insn >> 12) & 0x1) << 5;
if (imm & (1 << 5))
imm |= (0x7ffffff << 5);
db_printf("0x%x", imm);
break;
case 'o':
imm = ((insn >> 2) & 0x1f) << 0;
imm |= ((insn >> 12) & 0x1) << 5;
if (imm & (1 << 5))
imm |= (0x7ffffff << 5);
db_printf("%d", imm);
break;
case 'a':
imm = ((insn >> 3) & 0x7) << 1;
imm |= ((insn >> 11) & 0x1) << 4;
imm |= ((insn >> 2) & 0x1) << 5;
imm |= ((insn >> 7) & 0x1) << 6;
imm |= ((insn >> 6) & 0x1) << 7;
imm |= ((insn >> 9) & 0x3) << 8;
imm |= ((insn >> 8) & 0x1) << 10;
imm |= ((insn >> 12) & 0x1) << 11;
if (imm & (1 << 11))
imm |= (0xfffff << 12);
db_printf("0x%lx", (loc + imm));
break;
case 'V':
rs2 = (insn >> 2) & 0x1f;
db_printf("%s", reg_name[rs2]);
break;
case '>':
imm = ((insn >> 2) & 0x1f) << 0;
imm |= ((insn >> 12) & 0x1) << 5;
db_printf("%d", imm);
};
break;
case 'd':
db_printf("%s", reg_name[rd]);
break;
case 'D':
db_printf("%s", fp_reg_name[rd]);
break;
case 's':
db_printf("%s", reg_name[rs1]);
break;
case 'S':
db_printf("%s", fp_reg_name[rs1]);
break;
case 't':
db_printf("%s", reg_name[rs2]);
break;
case 'T':
db_printf("%s", fp_reg_name[rs2]);
break;
case 'R':
rs3 = (insn >> 27) & 0x1f;
db_printf("%s", fp_reg_name[rs3]);
break;
case 'Z':
imm = (insn >> 15) & 0x1f;
db_printf("%d", imm);
break;
case 'p':
imm = ((insn >> 8) & 0xf) << 1;
imm |= ((insn >> 25) & 0x3f) << 5;
imm |= ((insn >> 7) & 0x1) << 11;
imm |= ((insn >> 31) & 0x1) << 12;
if (imm & (1 << 12))
imm |= (0xfffff << 12);
db_printf("0x%016lx", (loc + imm));
break;
case '(':
case ')':
case '[':
case ']':
case ',':
db_printf("%c", *p);
break;
case '0':
if (!p[1])
db_printf("%c", *p);
break;
case 'o':
imm = (insn >> 20) & 0xfff;
if (imm & (1 << 11))
imm |= (0xfffff << 12);
db_printf("%d", imm);
break;
case 'q':
imm = (insn >> 7) & 0x1f;
imm |= ((insn >> 25) & 0x7f) << 5;
if (imm & (1 << 11))
imm |= (0xfffff << 12);
db_printf("%d", imm);
break;
case 'a':
imm = ((insn >> 21) & 0x3ff) << 1;
imm |= ((insn >> 20) & 0x1) << 11;
imm |= ((insn >> 12) & 0xff) << 12;
imm |= ((insn >> 31) & 0x1) << 20;
if (imm & (1 << 20))
imm |= (0xfff << 20);
db_printf("0x%lx", (loc + imm));
break;
case 'u':
imm = (insn >> 12) & 0xfffff;
if (imm & (1 << 20))
imm |= (0xfff << 20);
db_printf("0x%x", imm);
break;
case 'j':
imm = (insn >> 20) & 0xfff;
if (imm & (1 << 11))
imm |= (0xfffff << 12);
db_printf("%d", imm);
break;
case '>':
val = (insn >> 20) & 0x3f;
db_printf("0x%x", val);
break;
case '<':
val = (insn >> 20) & 0x1f;
db_printf("0x%x", val);
break;
case 'E':
val = (insn >> 20) & 0xfff;
csr_name = NULL;
switch (val) {
#define DECLARE_CSR(name, num) case num: csr_name = #name; break;
#include "machine/encoding.h"
#undef DECLARE_CSR
}
if (csr_name)
db_printf("%s", csr_name);
else
db_printf("0x%x", val);
break;
case 'P':
if (insn & (1 << 27)) db_printf("i");
if (insn & (1 << 26)) db_printf("o");
if (insn & (1 << 25)) db_printf("r");
if (insn & (1 << 24)) db_printf("w");
break;
case 'Q':
if (insn & (1 << 23)) db_printf("i");
if (insn & (1 << 22)) db_printf("o");
if (insn & (1 << 21)) db_printf("r");
if (insn & (1 << 20)) db_printf("w");
break;
}
p++;
}
return (0);
}
vm_offset_t
db_disasm(vm_offset_t loc, bool altfmt)
{
struct riscv_op *op;
uint32_t insn;
int j;
insn = db_get_value(loc, 4, 0);
for (j = 0; riscv_opcodes[j].name != NULL; j++) {
op = &riscv_opcodes[j];
if (op->match_func(op, insn)) {
oprint(op, loc, insn);
return(loc + 4);
}
};
insn = db_get_value(loc, 2, 0);
for (j = 0; riscv_c_opcodes[j].name != NULL; j++) {
op = &riscv_c_opcodes[j];
if (op->match_func(op, insn)) {
oprint(op, loc, insn);
break;
}
};
return(loc + 2);
}
