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target/s390x: implement MOVE ZONES

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Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Message-Id: <20170531220129.27724-14-aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
This commit is contained in:
Aurelien Jarno 2017-06-01 00:01:12 +02:00 committed by Richard Henderson
parent fdc0a7474a
commit 01f8db8857
4 changed files with 24 additions and 0 deletions
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1
target/s390x/helper.h
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@ -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)

2
target/s390x/insn-data.def
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@ -586,6 +586,8 @@
/* 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)

13
target/s390x/mem_helper.c
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@ -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)

8
target/s390x/translate.c
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@ -3019,6 +3019,14 @@ 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);