diff options
Diffstat (limited to 'target/loongarch')
| -rw-r--r-- | target/loongarch/disas.c | 610 |
1 files changed, 610 insertions, 0 deletions
diff --git a/target/loongarch/disas.c b/target/loongarch/disas.c new file mode 100644 index 0000000000..9454ebb8e9 --- /dev/null +++ b/target/loongarch/disas.c @@ -0,0 +1,610 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * QEMU LoongArch Disassembler + * + * Copyright (c) 2021 Loongson Technology Corporation Limited. + */ + +#include "qemu/osdep.h" +#include "disas/dis-asm.h" +#include "qemu/bitops.h" + +typedef struct { + disassemble_info *info; + uint64_t pc; + uint32_t insn; +} DisasContext; + +static inline int plus_1(DisasContext *ctx, int x) +{ + return x + 1; +} + +static inline int shl_2(DisasContext *ctx, int x) +{ + return x << 2; +} + +#define output(C, INSN, FMT, ...) \ +{ \ + (C)->info->fprintf_func((C)->info->stream, "%08x %-9s\t" FMT, \ + (C)->insn, INSN, ##__VA_ARGS__); \ +} + +#include "decode-insns.c.inc" + +int print_insn_loongarch(bfd_vma memaddr, struct disassemble_info *info) +{ + bfd_byte buffer[4]; + uint32_t insn; + int status; + + status = (*info->read_memory_func)(memaddr, buffer, 4, info); + if (status != 0) { + (*info->memory_error_func)(status, memaddr, info); + return -1; + } + insn = bfd_getl32(buffer); + DisasContext ctx = { + .info = info, + .pc = memaddr, + .insn = insn + }; + + if (!decode(&ctx, insn)) { + output(&ctx, "illegal", ""); + } + return 4; +} + +static void output_r_i(DisasContext *ctx, arg_r_i *a, const char *mnemonic) +{ + output(ctx, mnemonic, "r%d, %d", a->rd, a->imm); +} + +static void output_rrr(DisasContext *ctx, arg_rrr *a, const char *mnemonic) +{ + output(ctx, mnemonic, "r%d, r%d, r%d", a->rd, a->rj, a->rk); +} + +static void output_rr_i(DisasContext *ctx, arg_rr_i *a, const char *mnemonic) +{ + output(ctx, mnemonic, "r%d, r%d, %d", a->rd, a->rj, a->imm); +} + +static void output_rrr_sa(DisasContext *ctx, arg_rrr_sa *a, + const char *mnemonic) +{ + output(ctx, mnemonic, "r%d, r%d, r%d, %d", a->rd, a->rj, a->rk, a->sa); +} + +static void output_rr(DisasContext *ctx, arg_rr *a, const char *mnemonic) +{ + output(ctx, mnemonic, "r%d, r%d", a->rd, a->rj); +} + +static void output_rr_ms_ls(DisasContext *ctx, arg_rr_ms_ls *a, + const char *mnemonic) +{ + output(ctx, mnemonic, "r%d, r%d, %d, %d", a->rd, a->rj, a->ms, a->ls); +} + +static void output_hint_r_i(DisasContext *ctx, arg_hint_r_i *a, + const char *mnemonic) +{ + output(ctx, mnemonic, "%d, r%d, %d", a->hint, a->rj, a->imm); +} + +static void output_i(DisasContext *ctx, arg_i *a, const char *mnemonic) +{ + output(ctx, mnemonic, "%d", a->imm); +} + +static void output_rr_jk(DisasContext *ctx, arg_rr_jk *a, + const char *mnemonic) +{ + output(ctx, mnemonic, "r%d, r%d", a->rj, a->rk); +} + +static void output_ff(DisasContext *ctx, arg_ff *a, const char *mnemonic) +{ + output(ctx, mnemonic, "f%d, f%d", a->fd, a->fj); +} + +static void output_fff(DisasContext *ctx, arg_fff *a, const char *mnemonic) +{ + output(ctx, mnemonic, "f%d, f%d, f%d", a->fd, a->fj, a->fk); +} + +static void output_ffff(DisasContext *ctx, arg_ffff *a, const char *mnemonic) +{ + output(ctx, mnemonic, "f%d, f%d, f%d, f%d", a->fd, a->fj, a->fk, a->fa); +} + +static void output_fffc(DisasContext *ctx, arg_fffc *a, const char *mnemonic) +{ + output(ctx, mnemonic, "f%d, f%d, f%d, %d", a->fd, a->fj, a->fk, a->ca); +} + +static void output_fr(DisasContext *ctx, arg_fr *a, const char *mnemonic) +{ + output(ctx, mnemonic, "f%d, r%d", a->fd, a->rj); +} + +static void output_rf(DisasContext *ctx, arg_rf *a, const char *mnemonic) +{ + output(ctx, mnemonic, "r%d, f%d", a->rd, a->fj); +} + +static void output_fcsrd_r(DisasContext *ctx, arg_fcsrd_r *a, + const char *mnemonic) +{ + output(ctx, mnemonic, "fcsr%d, r%d", a->fcsrd, a->rj); +} + +static void output_r_fcsrs(DisasContext *ctx, arg_r_fcsrs *a, + const char *mnemonic) +{ + output(ctx, mnemonic, "r%d, fcsr%d", a->rd, a->fcsrs); +} + +static void output_cf(DisasContext *ctx, arg_cf *a, const char *mnemonic) +{ + output(ctx, mnemonic, "fcc%d, f%d", a->cd, a->fj); +} + +static void output_fc(DisasContext *ctx, arg_fc *a, const char *mnemonic) +{ + output(ctx, mnemonic, "f%d, fcc%d", a->fd, a->cj); +} + +static void output_cr(DisasContext *ctx, arg_cr *a, const char *mnemonic) +{ + output(ctx, mnemonic, "fcc%d, r%d", a->cd, a->rj); +} + +static void output_rc(DisasContext *ctx, arg_rc *a, const char *mnemonic) +{ + output(ctx, mnemonic, "r%d, fcc%d", a->rd, a->cj); +} + +static void output_frr(DisasContext *ctx, arg_frr *a, const char *mnemonic) +{ + output(ctx, mnemonic, "f%d, r%d, r%d", a->fd, a->rj, a->rk); +} + +static void output_fr_i(DisasContext *ctx, arg_fr_i *a, const char *mnemonic) +{ + output(ctx, mnemonic, "f%d, r%d, %d", a->fd, a->rj, a->imm); +} + +static void output_r_offs(DisasContext *ctx, arg_r_offs *a, + const char *mnemonic) +{ + output(ctx, mnemonic, "r%d, %d # 0x%" PRIx64, a->rj, a->offs, + ctx->pc + a->offs); +} + +static void output_c_offs(DisasContext *ctx, arg_c_offs *a, + const char *mnemonic) +{ + output(ctx, mnemonic, "fcc%d, %d # 0x%" PRIx64, a->cj, a->offs, + ctx->pc + a->offs); +} + +static void output_offs(DisasContext *ctx, arg_offs *a, + const char *mnemonic) +{ + output(ctx, mnemonic, "%d # 0x%" PRIx64, a->offs, ctx->pc + a->offs); +} + +static void output_rr_offs(DisasContext *ctx, arg_rr_offs *a, + const char *mnemonic) +{ + output(ctx, mnemonic, "r%d, r%d, %d # 0x%" PRIx64, a->rj, + a->rd, a->offs, ctx->pc + a->offs); +} + +#define INSN(insn, type) \ +static bool trans_##insn(DisasContext *ctx, arg_##type * a) \ +{ \ + output_##type(ctx, a, #insn); \ + return true; \ +} + +INSN(clo_w, rr) +INSN(clz_w, rr) +INSN(cto_w, rr) +INSN(ctz_w, rr) +INSN(clo_d, rr) +INSN(clz_d, rr) +INSN(cto_d, rr) +INSN(ctz_d, rr) +INSN(revb_2h, rr) +INSN(revb_4h, rr) +INSN(revb_2w, rr) +INSN(revb_d, rr) +INSN(revh_2w, rr) +INSN(revh_d, rr) +INSN(bitrev_4b, rr) +INSN(bitrev_8b, rr) +INSN(bitrev_w, rr) +INSN(bitrev_d, rr) +INSN(ext_w_h, rr) +INSN(ext_w_b, rr) +INSN(cpucfg, rr) +INSN(asrtle_d, rr_jk) +INSN(asrtgt_d, rr_jk) +INSN(alsl_w, rrr_sa) +INSN(alsl_wu, rrr_sa) +INSN(bytepick_w, rrr_sa) +INSN(bytepick_d, rrr_sa) +INSN(add_w, rrr) +INSN(add_d, rrr) +INSN(sub_w, rrr) +INSN(sub_d, rrr) +INSN(slt, rrr) +INSN(sltu, rrr) +INSN(maskeqz, rrr) +INSN(masknez, rrr) +INSN(nor, rrr) +INSN(and, rrr) +INSN(or, rrr) +INSN(xor, rrr) +INSN(orn, rrr) +INSN(andn, rrr) +INSN(sll_w, rrr) +INSN(srl_w, rrr) +INSN(sra_w, rrr) +INSN(sll_d, rrr) +INSN(srl_d, rrr) +INSN(sra_d, rrr) +INSN(rotr_w, rrr) +INSN(rotr_d, rrr) +INSN(mul_w, rrr) +INSN(mulh_w, rrr) +INSN(mulh_wu, rrr) +INSN(mul_d, rrr) +INSN(mulh_d, rrr) +INSN(mulh_du, rrr) +INSN(mulw_d_w, rrr) +INSN(mulw_d_wu, rrr) +INSN(div_w, rrr) +INSN(mod_w, rrr) +INSN(div_wu, rrr) +INSN(mod_wu, rrr) +INSN(div_d, rrr) +INSN(mod_d, rrr) +INSN(div_du, rrr) +INSN(mod_du, rrr) +INSN(crc_w_b_w, rrr) +INSN(crc_w_h_w, rrr) +INSN(crc_w_w_w, rrr) +INSN(crc_w_d_w, rrr) +INSN(crcc_w_b_w, rrr) +INSN(crcc_w_h_w, rrr) +INSN(crcc_w_w_w, rrr) +INSN(crcc_w_d_w, rrr) +INSN(break, i) +INSN(syscall, i) +INSN(alsl_d, rrr_sa) +INSN(slli_w, rr_i) +INSN(slli_d, rr_i) +INSN(srli_w, rr_i) +INSN(srli_d, rr_i) +INSN(srai_w, rr_i) +INSN(srai_d, rr_i) +INSN(rotri_w, rr_i) +INSN(rotri_d, rr_i) +INSN(bstrins_w, rr_ms_ls) +INSN(bstrpick_w, rr_ms_ls) +INSN(bstrins_d, rr_ms_ls) +INSN(bstrpick_d, rr_ms_ls) +INSN(fadd_s, fff) +INSN(fadd_d, fff) +INSN(fsub_s, fff) +INSN(fsub_d, fff) +INSN(fmul_s, fff) +INSN(fmul_d, fff) +INSN(fdiv_s, fff) +INSN(fdiv_d, fff) +INSN(fmax_s, fff) +INSN(fmax_d, fff) +INSN(fmin_s, fff) +INSN(fmin_d, fff) +INSN(fmaxa_s, fff) +INSN(fmaxa_d, fff) +INSN(fmina_s, fff) +INSN(fmina_d, fff) +INSN(fscaleb_s, fff) +INSN(fscaleb_d, fff) +INSN(fcopysign_s, fff) +INSN(fcopysign_d, fff) +INSN(fabs_s, ff) +INSN(fabs_d, ff) +INSN(fneg_s, ff) +INSN(fneg_d, ff) +INSN(flogb_s, ff) +INSN(flogb_d, ff) +INSN(fclass_s, ff) +INSN(fclass_d, ff) +INSN(fsqrt_s, ff) +INSN(fsqrt_d, ff) +INSN(frecip_s, ff) +INSN(frecip_d, ff) +INSN(frsqrt_s, ff) +INSN(frsqrt_d, ff) +INSN(fmov_s, ff) +INSN(fmov_d, ff) +INSN(movgr2fr_w, fr) +INSN(movgr2fr_d, fr) +INSN(movgr2frh_w, fr) +INSN(movfr2gr_s, rf) +INSN(movfr2gr_d, rf) +INSN(movfrh2gr_s, rf) +INSN(movgr2fcsr, fcsrd_r) +INSN(movfcsr2gr, r_fcsrs) +INSN(movfr2cf, cf) +INSN(movcf2fr, fc) +INSN(movgr2cf, cr) +INSN(movcf2gr, rc) +INSN(fcvt_s_d, ff) +INSN(fcvt_d_s, ff) +INSN(ftintrm_w_s, ff) +INSN(ftintrm_w_d, ff) +INSN(ftintrm_l_s, ff) +INSN(ftintrm_l_d, ff) +INSN(ftintrp_w_s, ff) +INSN(ftintrp_w_d, ff) +INSN(ftintrp_l_s, ff) +INSN(ftintrp_l_d, ff) +INSN(ftintrz_w_s, ff) +INSN(ftintrz_w_d, ff) +INSN(ftintrz_l_s, ff) +INSN(ftintrz_l_d, ff) +INSN(ftintrne_w_s, ff) +INSN(ftintrne_w_d, ff) +INSN(ftintrne_l_s, ff) +INSN(ftintrne_l_d, ff) +INSN(ftint_w_s, ff) +INSN(ftint_w_d, ff) +INSN(ftint_l_s, ff) +INSN(ftint_l_d, ff) +INSN(ffint_s_w, ff) +INSN(ffint_s_l, ff) +INSN(ffint_d_w, ff) +INSN(ffint_d_l, ff) +INSN(frint_s, ff) +INSN(frint_d, ff) +INSN(slti, rr_i) +INSN(sltui, rr_i) +INSN(addi_w, rr_i) +INSN(addi_d, rr_i) +INSN(lu52i_d, rr_i) +INSN(andi, rr_i) +INSN(ori, rr_i) +INSN(xori, rr_i) +INSN(fmadd_s, ffff) +INSN(fmadd_d, ffff) +INSN(fmsub_s, ffff) +INSN(fmsub_d, ffff) +INSN(fnmadd_s, ffff) +INSN(fnmadd_d, ffff) +INSN(fnmsub_s, ffff) +INSN(fnmsub_d, ffff) +INSN(fsel, fffc) +INSN(addu16i_d, rr_i) +INSN(lu12i_w, r_i) +INSN(lu32i_d, r_i) +INSN(pcaddi, r_i) +INSN(pcalau12i, r_i) +INSN(pcaddu12i, r_i) +INSN(pcaddu18i, r_i) +INSN(ll_w, rr_i) +INSN(sc_w, rr_i) +INSN(ll_d, rr_i) +INSN(sc_d, rr_i) +INSN(ldptr_w, rr_i) +INSN(stptr_w, rr_i) +INSN(ldptr_d, rr_i) +INSN(stptr_d, rr_i) +INSN(ld_b, rr_i) +INSN(ld_h, rr_i) +INSN(ld_w, rr_i) +INSN(ld_d, rr_i) +INSN(st_b, rr_i) +INSN(st_h, rr_i) +INSN(st_w, rr_i) +INSN(st_d, rr_i) +INSN(ld_bu, rr_i) +INSN(ld_hu, rr_i) +INSN(ld_wu, rr_i) +INSN(preld, hint_r_i) +INSN(fld_s, fr_i) +INSN(fst_s, fr_i) +INSN(fld_d, fr_i) +INSN(fst_d, fr_i) +INSN(ldx_b, rrr) +INSN(ldx_h, rrr) +INSN(ldx_w, rrr) +INSN(ldx_d, rrr) +INSN(stx_b, rrr) +INSN(stx_h, rrr) +INSN(stx_w, rrr) +INSN(stx_d, rrr) +INSN(ldx_bu, rrr) +INSN(ldx_hu, rrr) +INSN(ldx_wu, rrr) +INSN(fldx_s, frr) +INSN(fldx_d, frr) +INSN(fstx_s, frr) +INSN(fstx_d, frr) +INSN(amswap_w, rrr) +INSN(amswap_d, rrr) +INSN(amadd_w, rrr) +INSN(amadd_d, rrr) +INSN(amand_w, rrr) +INSN(amand_d, rrr) +INSN(amor_w, rrr) +INSN(amor_d, rrr) +INSN(amxor_w, rrr) +INSN(amxor_d, rrr) +INSN(ammax_w, rrr) +INSN(ammax_d, rrr) +INSN(ammin_w, rrr) +INSN(ammin_d, rrr) +INSN(ammax_wu, rrr) +INSN(ammax_du, rrr) +INSN(ammin_wu, rrr) +INSN(ammin_du, rrr) +INSN(amswap_db_w, rrr) +INSN(amswap_db_d, rrr) +INSN(amadd_db_w, rrr) +INSN(amadd_db_d, rrr) +INSN(amand_db_w, rrr) +INSN(amand_db_d, rrr) +INSN(amor_db_w, rrr) +INSN(amor_db_d, rrr) +INSN(amxor_db_w, rrr) +INSN(amxor_db_d, rrr) +INSN(ammax_db_w, rrr) +INSN(ammax_db_d, rrr) +INSN(ammin_db_w, rrr) +INSN(ammin_db_d, rrr) +INSN(ammax_db_wu, rrr) +INSN(ammax_db_du, rrr) +INSN(ammin_db_wu, rrr) +INSN(ammin_db_du, rrr) +INSN(dbar, i) +INSN(ibar, i) +INSN(fldgt_s, frr) +INSN(fldgt_d, frr) +INSN(fldle_s, frr) +INSN(fldle_d, frr) +INSN(fstgt_s, frr) +INSN(fstgt_d, frr) +INSN(fstle_s, frr) +INSN(fstle_d, frr) +INSN(ldgt_b, rrr) +INSN(ldgt_h, rrr) +INSN(ldgt_w, rrr) +INSN(ldgt_d, rrr) +INSN(ldle_b, rrr) +INSN(ldle_h, rrr) +INSN(ldle_w, rrr) +INSN(ldle_d, rrr) +INSN(stgt_b, rrr) +INSN(stgt_h, rrr) +INSN(stgt_w, rrr) +INSN(stgt_d, rrr) +INSN(stle_b, rrr) +INSN(stle_h, rrr) +INSN(stle_w, rrr) +INSN(stle_d, rrr) +INSN(beqz, r_offs) +INSN(bnez, r_offs) +INSN(bceqz, c_offs) +INSN(bcnez, c_offs) +INSN(jirl, rr_offs) +INSN(b, offs) +INSN(bl, offs) +INSN(beq, rr_offs) +INSN(bne, rr_offs) +INSN(blt, rr_offs) +INSN(bge, rr_offs) +INSN(bltu, rr_offs) +INSN(bgeu, rr_offs) + +#define output_fcmp(C, PREFIX, SUFFIX) \ +{ \ + (C)->info->fprintf_func((C)->info->stream, "%08x %s%s\tfcc%d, f%d, f%d", \ + (C)->insn, PREFIX, SUFFIX, a->cd, \ + a->fj, a->fk); \ +} + +static bool output_cff_fcond(DisasContext *ctx, arg_cff_fcond * a, + const char *suffix) +{ + bool ret = true; + switch (a->fcond) { + case 0x0: + output_fcmp(ctx, "fcmp_caf_", suffix); + break; + case 0x1: + output_fcmp(ctx, "fcmp_saf_", suffix); + break; + case 0x2: + output_fcmp(ctx, "fcmp_clt_", suffix); + break; + case 0x3: + output_fcmp(ctx, "fcmp_slt_", suffix); + break; + case 0x4: + output_fcmp(ctx, "fcmp_ceq_", suffix); + break; + case 0x5: + output_fcmp(ctx, "fcmp_seq_", suffix); + break; + case 0x6: + output_fcmp(ctx, "fcmp_cle_", suffix); + break; + case 0x7: + output_fcmp(ctx, "fcmp_sle_", suffix); + break; + case 0x8: + output_fcmp(ctx, "fcmp_cun_", suffix); + break; + case 0x9: + output_fcmp(ctx, "fcmp_sun_", suffix); + break; + case 0xA: + output_fcmp(ctx, "fcmp_cult_", suffix); + break; + case 0xB: + output_fcmp(ctx, "fcmp_sult_", suffix); + break; + case 0xC: + output_fcmp(ctx, "fcmp_cueq_", suffix); + break; + case 0xD: + output_fcmp(ctx, "fcmp_sueq_", suffix); + break; + case 0xE: + output_fcmp(ctx, "fcmp_cule_", suffix); + break; + case 0xF: + output_fcmp(ctx, "fcmp_sule_", suffix); + break; + case 0x10: + output_fcmp(ctx, "fcmp_cne_", suffix); + break; + case 0x11: + output_fcmp(ctx, "fcmp_sne_", suffix); + break; + case 0x14: + output_fcmp(ctx, "fcmp_cor_", suffix); + break; + case 0x15: + output_fcmp(ctx, "fcmp_sor_", suffix); + break; + case 0x18: + output_fcmp(ctx, "fcmp_cune_", suffix); + break; + case 0x19: + output_fcmp(ctx, "fcmp_sune_", suffix); + break; + default: + ret = false; + } + return ret; +} + +#define FCMP_INSN(suffix) \ +static bool trans_fcmp_cond_##suffix(DisasContext *ctx, \ + arg_cff_fcond * a) \ +{ \ + return output_cff_fcond(ctx, a, #suffix); \ +} + +FCMP_INSN(s) +FCMP_INSN(d) |