static bool trans_mulhu(DisasContext *ctx, arg_mulhu *a)
{
REQUIRE_EXT(ctx, RVM);
TCGv source1 = tcg_temp_new();
TCGv source2 = tcg_temp_new();
gen_get_gpr(source1, a->rs1);
gen_get_gpr(source2, a->rs2);
tcg_gen_mulu2_tl(source2, source1, source1, source2);
gen_set_gpr(a->rd, source1);
tcg_temp_free(source1);
tcg_temp_free(source2);
return true;
}
static bool trans_divw(DisasContext *ctx, arg_divw *a)
{
REQUIRE_EXT(ctx, RVM);
return gen_arith_div_w(ctx, a, &gen_div);
}
static bool trans_mulw(DisasContext *ctx, arg_mulw *a)
{
REQUIRE_EXT(ctx, RVM);
return gen_arith(ctx, a, &gen_mulw);
}
static bool trans_remu(DisasContext *ctx, arg_remu *a)
{
REQUIRE_EXT(ctx, RVM);
return gen_arith(ctx, a, &gen_remu);
}
static bool trans_mul(DisasContext *ctx, arg_mul *a)
{
REQUIRE_EXT(ctx, RVM);
return gen_arith(ctx, a, &tcg_gen_mul_tl);
}
static bool trans_c_addi4spn(DisasContext *ctx, arg_c_addi4spn *a)
{
if (a->nzuimm == 0) {
/* Reserved in ISA */
return false;
}
arg_addi arg = { .rd = a->rd, .rs1 = 2, .imm = a->nzuimm };
return trans_addi(ctx, &arg);
}
static bool trans_c_fld(DisasContext *ctx, arg_c_fld *a)
{
arg_fld arg = { .rd = a->rd, .rs1 = a->rs1, .imm = a->uimm };
return trans_fld(ctx, &arg);
}
static bool trans_c_lw(DisasContext *ctx, arg_c_lw *a)
{
arg_lw arg = { .rd = a->rd, .rs1 = a->rs1, .imm = a->uimm };
return trans_lw(ctx, &arg);
}
static bool trans_c_flw_ld(DisasContext *ctx, arg_c_flw_ld *a)
{
#ifdef TARGET_RISCV32
/* C.FLW ( RV32FC-only ) */
REQUIRE_FPU;
REQUIRE_EXT(ctx, RVF);
arg_c_lw tmp;
decode_insn16_extract_cl_w(&tmp, ctx->opcode);
arg_flw arg = { .rd = tmp.rd, .rs1 = tmp.rs1, .imm = tmp.uimm };
return trans_flw(ctx, &arg);
#else
/* C.LD ( RV64C/RV128C-only ) */
arg_c_fld tmp;
decode_insn16_extract_cl_d(&tmp, ctx->opcode);
arg_ld arg = { .rd = tmp.rd, .rs1 = tmp.rs1, .imm = tmp.uimm };
return trans_ld(ctx, &arg);
#endif
}
static bool trans_c_fsd(DisasContext *ctx, arg_c_fsd *a)
{
arg_fsd arg = { .rs1 = a->rs1, .rs2 = a->rs2, .imm = a->uimm };
return trans_fsd(ctx, &arg);
}
static bool trans_c_sw(DisasContext *ctx, arg_c_sw *a)
{
arg_sw arg = { .rs1 = a->rs1, .rs2 = a->rs2, .imm = a->uimm };
return trans_sw(ctx, &arg);
}
static bool trans_c_fsw_sd(DisasContext *ctx, arg_c_fsw_sd *a)
{
#ifdef TARGET_RISCV32
/* C.FSW ( RV32FC-only ) */
REQUIRE_FPU;
REQUIRE_EXT(ctx, RVF);
arg_c_sw tmp;
decode_insn16_extract_cs_w(&tmp, ctx->opcode);
arg_fsw arg = { .rs1 = tmp.rs1, .rs2 = tmp.rs2, .imm = tmp.uimm };
return trans_fsw(ctx, &arg);
#else
/* C.SD ( RV64C/RV128C-only ) */
arg_c_fsd tmp;
decode_insn16_extract_cs_d(&tmp, ctx->opcode);
arg_sd arg = { .rs1 = tmp.rs1, .rs2 = tmp.rs2, .imm = tmp.uimm };
return trans_sd(ctx, &arg);
#endif
}
static bool trans_c_addi(DisasContext *ctx, arg_c_addi *a)
{
if (a->imm == 0) {
/* Hint: insn is valid but does not affect state */
return true;
}
arg_addi arg = { .rd = a->rd, .rs1 = a->rd, .imm = a->imm };
return trans_addi(ctx, &arg);
}
static bool trans_c_jal_addiw(DisasContext *ctx, arg_c_jal_addiw *a)
{
#ifdef TARGET_RISCV32
/* C.JAL */
arg_c_j tmp;
decode_insn16_extract_cj(&tmp, ctx->opcode);
arg_jal arg = { .rd = 1, .imm = tmp.imm };
return trans_jal(ctx, &arg);
#else
/* C.ADDIW */
arg_addiw arg = { .rd = a->rd, .rs1 = a->rd, .imm = a->imm };
return trans_addiw(ctx, &arg);
#endif
}
static bool trans_c_li(DisasContext *ctx, arg_c_li *a)
{
if (a->rd == 0) {
/* Hint: insn is valid but does not affect state */
return true;
}
arg_addi arg = { .rd = a->rd, .rs1 = 0, .imm = a->imm };
return trans_addi(ctx, &arg);
}
static bool trans_c_addi16sp_lui(DisasContext *ctx, arg_c_addi16sp_lui *a)
{
if (a->rd == 2) {
/* C.ADDI16SP */
arg_addi arg = { .rd = 2, .rs1 = 2, .imm = a->imm_addi16sp };
return trans_addi(ctx, &arg);
} else if (a->imm_lui != 0) {
/* C.LUI */
if (a->rd == 0) {
/* Hint: insn is valid but does not affect state */
return true;
}
arg_lui arg = { .rd = a->rd, .imm = a->imm_lui };
return trans_lui(ctx, &arg);
}
return false;
}
static bool trans_c_srli(DisasContext *ctx, arg_c_srli *a)
{
int shamt = a->shamt;
if (shamt == 0) {
/* For RV128 a shamt of 0 means a shift by 64 */
shamt = 64;
}
/* Ensure, that shamt[5] is zero for RV32 */
if (shamt >= TARGET_LONG_BITS) {
return false;
}
arg_srli arg = { .rd = a->rd, .rs1 = a->rd, .shamt = a->shamt };
return trans_srli(ctx, &arg);
}
static bool trans_c_srai(DisasContext *ctx, arg_c_srai *a)
{
int shamt = a->shamt;
if (shamt == 0) {
/* For RV128 a shamt of 0 means a shift by 64 */
shamt = 64;
}
/* Ensure, that shamt[5] is zero for RV32 */
if (shamt >= TARGET_LONG_BITS) {
return false;
}
arg_srai arg = { .rd = a->rd, .rs1 = a->rd, .shamt = a->shamt };
return trans_srai(ctx, &arg);
}
static bool trans_c_andi(DisasContext *ctx, arg_c_andi *a)
{
arg_andi arg = { .rd = a->rd, .rs1 = a->rd, .imm = a->imm };
return trans_andi(ctx, &arg);
}
static bool trans_c_sub(DisasContext *ctx, arg_c_sub *a)
{
arg_sub arg = { .rd = a->rd, .rs1 = a->rd, .rs2 = a->rs2 };
return trans_sub(ctx, &arg);
}
static bool trans_c_xor(DisasContext *ctx, arg_c_xor *a)
{
arg_xor arg = { .rd = a->rd, .rs1 = a->rd, .rs2 = a->rs2 };
return trans_xor(ctx, &arg);
}
static bool trans_c_or(DisasContext *ctx, arg_c_or *a)
{
arg_or arg = { .rd = a->rd, .rs1 = a->rd, .rs2 = a->rs2 };
return trans_or(ctx, &arg);
}
static bool trans_c_and(DisasContext *ctx, arg_c_and *a)
{
arg_and arg = { .rd = a->rd, .rs1 = a->rd, .rs2 = a->rs2 };
return trans_and(ctx, &arg);
}
static bool trans_c_subw(DisasContext *ctx, arg_c_subw *a)
{
#ifdef TARGET_RISCV64
arg_subw arg = { .rd = a->rd, .rs1 = a->rd, .rs2 = a->rs2 };
return trans_subw(ctx, &arg);
#else
return false;
#endif
}
static bool trans_c_addw(DisasContext *ctx, arg_c_addw *a)
{
#ifdef TARGET_RISCV64
arg_addw arg = { .rd = a->rd, .rs1 = a->rd, .rs2 = a->rs2 };
return trans_addw(ctx, &arg);
#else
return false;
#endif
}
static bool trans_c_j(DisasContext *ctx, arg_c_j *a)
{
arg_jal arg = { .rd = 0, .imm = a->imm };
return trans_jal(ctx, &arg);
}
static bool trans_c_beqz(DisasContext *ctx, arg_c_beqz *a)
{
arg_beq arg = { .rs1 = a->rs1, .rs2 = 0, .imm = a->imm };
return trans_beq(ctx, &arg);
}
static bool trans_c_bnez(DisasContext *ctx, arg_c_bnez *a)
{
arg_bne arg = { .rs1 = a->rs1, .rs2 = 0, .imm = a->imm };
return trans_bne(ctx, &arg);
}
static bool trans_c_slli(DisasContext *ctx, arg_c_slli *a)
{
int shamt = a->shamt;
if (shamt == 0) {
/* For RV128 a shamt of 0 means a shift by 64 */
shamt = 64;
}
/* Ensure, that shamt[5] is zero for RV32 */
if (shamt >= TARGET_LONG_BITS) {
return false;
}
arg_slli arg = { .rd = a->rd, .rs1 = a->rd, .shamt = a->shamt };
return trans_slli(ctx, &arg);
}
static bool trans_c_fldsp(DisasContext *ctx, arg_c_fldsp *a)
{
arg_fld arg = { .rd = a->rd, .rs1 = 2, .imm = a->uimm };
return trans_fld(ctx, &arg);
}
static bool trans_c_lwsp(DisasContext *ctx, arg_c_lwsp *a)
{
arg_lw arg = { .rd = a->rd, .rs1 = 2, .imm = a->uimm };
return trans_lw(ctx, &arg);
}
static bool trans_c_flwsp_ldsp(DisasContext *ctx, arg_c_flwsp_ldsp *a)
{
#ifdef TARGET_RISCV32
/* C.FLWSP */
arg_flw arg_flw = { .rd = a->rd, .rs1 = 2, .imm = a->uimm_flwsp };
return trans_flw(ctx, &arg_flw);
#else
/* C.LDSP */
arg_ld arg_ld = { .rd = a->rd, .rs1 = 2, .imm = a->uimm_ldsp };
return trans_ld(ctx, &arg_ld);
#endif
return false;
}
static bool trans_c_jr_mv(DisasContext *ctx, arg_c_jr_mv *a)
{
if (a->rd != 0 && a->rs2 == 0) {
/* C.JR */
arg_jalr arg = { .rd = 0, .rs1 = a->rd, .imm = 0 };
return trans_jalr(ctx, &arg);
} else if (a->rd != 0 && a->rs2 != 0) {
/* C.MV */
arg_add arg = { .rd = a->rd, .rs1 = 0, .rs2 = a->rs2 };
return trans_add(ctx, &arg);
}
return false;
}
static bool trans_c_ebreak_jalr_add(DisasContext *ctx, arg_c_ebreak_jalr_add *a)
{
if (a->rd == 0 && a->rs2 == 0) {
/* C.EBREAK */
arg_ebreak arg = { };
return trans_ebreak(ctx, &arg);
} else if (a->rd != 0) {
if (a->rs2 == 0) {
/* C.JALR */
arg_jalr arg = { .rd = 1, .rs1 = a->rd, .imm = 0 };
return trans_jalr(ctx, &arg);
} else {
/* C.ADD */
arg_add arg = { .rd = a->rd, .rs1 = a->rd, .rs2 = a->rs2 };
return trans_add(ctx, &arg);
}
}
return false;
}
static bool trans_c_fsdsp(DisasContext *ctx, arg_c_fsdsp *a)
{
arg_fsd arg = { .rs1 = 2, .rs2 = a->rs2, .imm = a->uimm };
return trans_fsd(ctx, &arg);
}
static bool trans_c_swsp(DisasContext *ctx, arg_c_swsp *a)
{
arg_sw arg = { .rs1 = 2, .rs2 = a->rs2, .imm = a->uimm };
return trans_sw(ctx, &arg);
}
static bool trans_c_fswsp_sdsp(DisasContext *ctx, arg_c_fswsp_sdsp *a)
{
#ifdef TARGET_RISCV32
/* C.FSWSP */
arg_fsw a_fsw = { .rs1 = 2, .rs2 = a->rs2, .imm = a->uimm_fswsp };
return trans_fsw(ctx, &a_fsw);
#else
/* C.SDSP */
arg_sd a_sd = { .rs1 = 2, .rs2 = a->rs2, .imm = a->uimm_sdsp };
return trans_sd(ctx, &a_sd);
#endif
}