diff options
| author | Richard Henderson <rth@twiddle.net> | 2015-07-06 19:10:23 +0100 |
|---|---|---|
| committer | Richard Henderson <rth@twiddle.net> | 2016-02-15 14:50:00 +1100 |
| commit | 62b58ba58bfebdb8a1c447beaa1285cc21249d15 (patch) | |
| tree | faefb732412761c1afdb62f0a15af50cd150eef0 /target-i386 | |
| parent | 149b427b32de358c3bd5bc064c50acca6e9ff78f (diff) | |
| download | qemu-62b58ba58bfebdb8a1c447beaa1285cc21249d15.tar.gz | |
target-i386: Implement BNDMOV
Signed-off-by: Richard Henderson <rth@twiddle.net>
Diffstat (limited to 'target-i386')
| -rw-r--r-- | target-i386/translate.c | 73 |
1 files changed, 72 insertions, 1 deletions
diff --git a/target-i386/translate.c b/target-i386/translate.c index 3967d86d3d..1ac245ba17 100644 --- a/target-i386/translate.c +++ b/target-i386/translate.c @@ -7440,6 +7440,47 @@ static target_ulong disas_insn(CPUX86State *env, DisasContext *s, break; } break; + case 0x11a: + modrm = cpu_ldub_code(env, s->pc++); + if (s->flags & HF_MPX_EN_MASK) { + mod = (modrm >> 6) & 3; + reg = ((modrm >> 3) & 7) | rex_r; + if (prefixes & PREFIX_DATA) { + /* bndmov -- from reg/mem */ + if (reg >= 4 || s->aflag == MO_16) { + goto illegal_op; + } + if (mod == 3) { + int reg2 = (modrm & 7) | REX_B(s); + if (reg2 >= 4 || (prefixes & PREFIX_LOCK)) { + goto illegal_op; + } + if (s->flags & HF_MPX_IU_MASK) { + tcg_gen_mov_i64(cpu_bndl[reg], cpu_bndl[reg2]); + tcg_gen_mov_i64(cpu_bndu[reg], cpu_bndu[reg2]); + } + } else { + gen_lea_modrm(env, s, modrm); + if (CODE64(s)) { + tcg_gen_qemu_ld_i64(cpu_bndl[reg], cpu_A0, + s->mem_index, MO_LEQ); + tcg_gen_addi_tl(cpu_A0, cpu_A0, 8); + tcg_gen_qemu_ld_i64(cpu_bndu[reg], cpu_A0, + s->mem_index, MO_LEQ); + } else { + tcg_gen_qemu_ld_i64(cpu_bndl[reg], cpu_A0, + s->mem_index, MO_LEUL); + tcg_gen_addi_tl(cpu_A0, cpu_A0, 4); + tcg_gen_qemu_ld_i64(cpu_bndu[reg], cpu_A0, + s->mem_index, MO_LEUL); + } + /* bnd registers are now in-use */ + gen_set_hflag(s, HF_MPX_IU_MASK); + } + } + } + gen_nop_modrm(env, s, modrm); + break; case 0x11b: modrm = cpu_ldub_code(env, s->pc++); if (s->flags & HF_MPX_EN_MASK) { @@ -7473,11 +7514,41 @@ static target_ulong disas_insn(CPUX86State *env, DisasContext *s, /* bnd registers are now in-use */ gen_set_hflag(s, HF_MPX_IU_MASK); break; + } else if (prefixes & PREFIX_DATA) { + /* bndmov -- to reg/mem */ + if (reg >= 4 || s->aflag == MO_16) { + goto illegal_op; + } + if (mod == 3) { + int reg2 = (modrm & 7) | REX_B(s); + if (reg2 >= 4 || (prefixes & PREFIX_LOCK)) { + goto illegal_op; + } + if (s->flags & HF_MPX_IU_MASK) { + tcg_gen_mov_i64(cpu_bndl[reg2], cpu_bndl[reg]); + tcg_gen_mov_i64(cpu_bndu[reg2], cpu_bndu[reg]); + } + } else { + gen_lea_modrm(env, s, modrm); + if (CODE64(s)) { + tcg_gen_qemu_st_i64(cpu_bndl[reg], cpu_A0, + s->mem_index, MO_LEQ); + tcg_gen_addi_tl(cpu_A0, cpu_A0, 8); + tcg_gen_qemu_st_i64(cpu_bndu[reg], cpu_A0, + s->mem_index, MO_LEQ); + } else { + tcg_gen_qemu_st_i64(cpu_bndl[reg], cpu_A0, + s->mem_index, MO_LEUL); + tcg_gen_addi_tl(cpu_A0, cpu_A0, 4); + tcg_gen_qemu_st_i64(cpu_bndu[reg], cpu_A0, + s->mem_index, MO_LEUL); + } + } } } gen_nop_modrm(env, s, modrm); break; - case 0x119: case 0x11a: case 0x11c ... 0x11f: /* nop (multi byte) */ + case 0x119: case 0x11c ... 0x11f: /* nop (multi byte) */ modrm = cpu_ldub_code(env, s->pc++); gen_nop_modrm(env, s, modrm); break; |