diff options
Diffstat (limited to 'target-s390x/translate.c')
| -rw-r--r-- | target-s390x/translate.c | 80 |
1 files changed, 71 insertions, 9 deletions
diff --git a/target-s390x/translate.c b/target-s390x/translate.c index fbf7f91ec0..9e53c9812e 100644 --- a/target-s390x/translate.c +++ b/target-s390x/translate.c @@ -323,6 +323,20 @@ static inline void gen_illegal_opcode(DisasContext *s) gen_program_exception(s, PGM_OPERATION); } +static inline void gen_trap(DisasContext *s) +{ + TCGv_i32 t; + + /* Set DXC to 0xff. */ + t = tcg_temp_new_i32(); + tcg_gen_ld_i32(t, cpu_env, offsetof(CPUS390XState, fpc)); + tcg_gen_ori_i32(t, t, 0xff00); + tcg_gen_st_i32(t, cpu_env, offsetof(CPUS390XState, fpc)); + tcg_temp_free_i32(t); + + gen_program_exception(s, PGM_DATA); +} + #ifndef CONFIG_USER_ONLY static void check_privileged(DisasContext *s) { @@ -1120,6 +1134,7 @@ typedef enum DisasFacility { FAC_HW, /* high-word */ FAC_IEEEE_SIM, /* IEEE exception sumilation */ FAC_MIE, /* miscellaneous-instruction-extensions */ + FAC_LAT, /* load-and-trap */ FAC_LOC, /* load/store on condition */ FAC_LD, /* long displacement */ FAC_PC, /* population count */ @@ -1968,7 +1983,6 @@ static ExitStatus op_ct(DisasContext *s, DisasOps *o) { int m3 = get_field(s->fields, m3); TCGLabel *lab = gen_new_label(); - TCGv_i32 t; TCGCond c; c = tcg_invert_cond(ltgt_cond[m3]); @@ -1977,15 +1991,8 @@ static ExitStatus op_ct(DisasContext *s, DisasOps *o) } tcg_gen_brcond_i64(c, o->in1, o->in2, lab); - /* Set DXC to 0xff. */ - t = tcg_temp_new_i32(); - tcg_gen_ld_i32(t, cpu_env, offsetof(CPUS390XState, fpc)); - tcg_gen_ori_i32(t, t, 0xff00); - tcg_gen_st_i32(t, cpu_env, offsetof(CPUS390XState, fpc)); - tcg_temp_free_i32(t); - /* Trap. */ - gen_program_exception(s, PGM_DATA); + gen_trap(s); gen_set_label(lab); return NO_EXIT; @@ -2351,6 +2358,61 @@ static ExitStatus op_ld64(DisasContext *s, DisasOps *o) return NO_EXIT; } +static ExitStatus op_lat(DisasContext *s, DisasOps *o) +{ + TCGLabel *lab = gen_new_label(); + store_reg32_i64(get_field(s->fields, r1), o->in2); + /* The value is stored even in case of trap. */ + tcg_gen_brcondi_i64(TCG_COND_NE, o->in2, 0, lab); + gen_trap(s); + gen_set_label(lab); + return NO_EXIT; +} + +static ExitStatus op_lgat(DisasContext *s, DisasOps *o) +{ + TCGLabel *lab = gen_new_label(); + tcg_gen_qemu_ld64(o->out, o->in2, get_mem_index(s)); + /* The value is stored even in case of trap. */ + tcg_gen_brcondi_i64(TCG_COND_NE, o->out, 0, lab); + gen_trap(s); + gen_set_label(lab); + return NO_EXIT; +} + +static ExitStatus op_lfhat(DisasContext *s, DisasOps *o) +{ + TCGLabel *lab = gen_new_label(); + store_reg32h_i64(get_field(s->fields, r1), o->in2); + /* The value is stored even in case of trap. */ + tcg_gen_brcondi_i64(TCG_COND_NE, o->in2, 0, lab); + gen_trap(s); + gen_set_label(lab); + return NO_EXIT; +} + +static ExitStatus op_llgfat(DisasContext *s, DisasOps *o) +{ + TCGLabel *lab = gen_new_label(); + tcg_gen_qemu_ld32u(o->out, o->in2, get_mem_index(s)); + /* The value is stored even in case of trap. */ + tcg_gen_brcondi_i64(TCG_COND_NE, o->out, 0, lab); + gen_trap(s); + gen_set_label(lab); + return NO_EXIT; +} + +static ExitStatus op_llgtat(DisasContext *s, DisasOps *o) +{ + TCGLabel *lab = gen_new_label(); + tcg_gen_andi_i64(o->out, o->in2, 0x7fffffff); + /* The value is stored even in case of trap. */ + tcg_gen_brcondi_i64(TCG_COND_NE, o->out, 0, lab); + gen_trap(s); + gen_set_label(lab); + return NO_EXIT; +} + static ExitStatus op_loc(DisasContext *s, DisasOps *o) { DisasCompare c; |