diff options
Diffstat (limited to 'target-s390x/translate.c')
| -rw-r--r-- | target-s390x/translate.c | 43 |
1 files changed, 25 insertions, 18 deletions
diff --git a/target-s390x/translate.c b/target-s390x/translate.c index 78c29cf..8425c51 100644 --- a/target-s390x/translate.c +++ b/target-s390x/translate.c @@ -2226,7 +2226,7 @@ static void disas_s390_insn(CPUS390XState *env, DisasContext *s) TCGv_i32 tmp32_1, tmp32_2; unsigned char opc; uint64_t insn; - int op, r1, r2, r3, d1, d2, x2, b1, b2, i2, r1b; + int op, r1, r2, r3, d1, d2, x2, b1, b2, r1b; TCGv_i32 vl; opc = cpu_ldub_code(env, s->pc); @@ -2284,23 +2284,6 @@ static void disas_s390_insn(CPUS390XState *env, DisasContext *s) tcg_temp_free_i32(tmp32_2); break; #ifndef CONFIG_USER_ONLY - case 0xac: /* STNSM D1(B1),I2 [SI] */ - case 0xad: /* STOSM D1(B1),I2 [SI] */ - check_privileged(s); - insn = ld_code4(env, s->pc); - tmp = decode_si(s, insn, &i2, &b1, &d1); - tmp2 = tcg_temp_new_i64(); - tcg_gen_shri_i64(tmp2, psw_mask, 56); - tcg_gen_qemu_st8(tmp2, tmp, get_mem_index(s)); - if (opc == 0xac) { - tcg_gen_andi_i64(psw_mask, psw_mask, - ((uint64_t)i2 << 56) | 0x00ffffffffffffffULL); - } else { - tcg_gen_ori_i64(psw_mask, psw_mask, (uint64_t)i2 << 56); - } - tcg_temp_free_i64(tmp); - tcg_temp_free_i64(tmp2); - break; case 0xae: /* SIGP R1,R3,D2(B2) [RS] */ check_privileged(s); insn = ld_code4(env, s->pc); @@ -3485,6 +3468,30 @@ static ExitStatus op_ssm(DisasContext *s, DisasOps *o) tcg_gen_deposit_i64(psw_mask, psw_mask, o->in2, 56, 8); return NO_EXIT; } + +static ExitStatus op_stnosm(DisasContext *s, DisasOps *o) +{ + uint64_t i2 = get_field(s->fields, i2); + TCGv_i64 t; + + check_privileged(s); + + /* It is important to do what the instruction name says: STORE THEN. + If we let the output hook perform the store then if we fault and + restart, we'll have the wrong SYSTEM MASK in place. */ + t = tcg_temp_new_i64(); + tcg_gen_shri_i64(t, psw_mask, 56); + tcg_gen_qemu_st8(t, o->addr1, get_mem_index(s)); + tcg_temp_free_i64(t); + + if (s->fields->op == 0xac) { + tcg_gen_andi_i64(psw_mask, psw_mask, + (i2 << 56) | 0x00ffffffffffffffull); + } else { + tcg_gen_ori_i64(psw_mask, psw_mask, i2 << 56); + } + return NO_EXIT; +} #endif static ExitStatus op_st8(DisasContext *s, DisasOps *o) |
