Reviewed-by: Richard Henderson <r...@twiddle.net> Signed-off-by: Aurelien Jarno <aurel...@aurel32.net> --- target/s390x/helper.h | 1 + target/s390x/insn-data.def | 2 ++ target/s390x/mem_helper.c | 13 +++++++++++++ target/s390x/translate.c | 8 ++++++++ 4 files changed, 24 insertions(+)
diff --git a/target/s390x/helper.h b/target/s390x/helper.h index e3a438b845..214a5e9e1c 100644 --- a/target/s390x/helper.h +++ b/target/s390x/helper.h @@ -16,6 +16,7 @@ DEF_HELPER_4(clst, i64, env, i64, i64, i64) DEF_HELPER_FLAGS_4(mvn, TCG_CALL_NO_WG, void, env, i32, i64, i64) DEF_HELPER_FLAGS_4(mvo, TCG_CALL_NO_WG, void, env, i32, i64, i64) DEF_HELPER_FLAGS_4(mvpg, TCG_CALL_NO_WG, i32, env, i64, i64, i64) +DEF_HELPER_FLAGS_4(mvz, TCG_CALL_NO_WG, void, env, i32, i64, i64) DEF_HELPER_4(mvst, i64, env, i64, i64, i64) DEF_HELPER_4(ex, void, env, i32, i64, i64) DEF_HELPER_FLAGS_4(stam, TCG_CALL_NO_WG, void, env, i32, i64, i32) diff --git a/target/s390x/insn-data.def b/target/s390x/insn-data.def index 47542eeaf3..b40611b75f 100644 --- a/target/s390x/insn-data.def +++ b/target/s390x/insn-data.def @@ -588,6 +588,8 @@ /* Really format SS_b, but we pack both lengths into one argument for the helper call, so we might as well leave one 8-bit field. */ C(0xf100, MVO, SS_a, Z, la1, a2, 0, 0, mvo, 0) +/* MOVE ZONES */ + C(0xd300, MVZ, SS_a, Z, la1, a2, 0, 0, mvz, 0) /* MULTIPLY */ C(0x1c00, MR, RR_a, Z, r1p1_32s, r2_32s, new, r1_D32, mul, 0) diff --git a/target/s390x/mem_helper.c b/target/s390x/mem_helper.c index f748750a55..484dfcd9d6 100644 --- a/target/s390x/mem_helper.c +++ b/target/s390x/mem_helper.c @@ -287,6 +287,19 @@ void HELPER(mvo)(CPUS390XState *env, uint32_t l, uint64_t dest, uint64_t src) } } +/* move zones */ +void HELPER(mvz)(CPUS390XState *env, uint32_t l, uint64_t dest, uint64_t src) +{ + uintptr_t ra = GETPC(); + int i; + + for (i = 0; i <= l; i++) { + uint8_t b = cpu_ldub_data_ra(env, dest + i, ra) & 0x0f; + b |= cpu_ldub_data_ra(env, src + i, ra) & 0xf0; + cpu_stb_data_ra(env, dest + i, b, ra); + } +} + /* compare unsigned byte arrays */ static uint32_t do_helper_clc(CPUS390XState *env, uint32_t l, uint64_t s1, uint64_t s2, uintptr_t ra) diff --git a/target/s390x/translate.c b/target/s390x/translate.c index b1877cf27b..95ca53c1ef 100644 --- a/target/s390x/translate.c +++ b/target/s390x/translate.c @@ -3021,6 +3021,14 @@ static ExitStatus op_mvst(DisasContext *s, DisasOps *o) return NO_EXIT; } +static ExitStatus op_mvz(DisasContext *s, DisasOps *o) +{ + TCGv_i32 l = tcg_const_i32(get_field(s->fields, l1)); + gen_helper_mvz(cpu_env, l, o->addr1, o->in2); + tcg_temp_free_i32(l); + return NO_EXIT; +} + static ExitStatus op_mul(DisasContext *s, DisasOps *o) { tcg_gen_mul_i64(o->out, o->in1, o->in2); -- 2.11.0