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target/s390x: implement TEST DECIMAL

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Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Message-Id: <20170531220129.27724-28-aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
This commit is contained in:
Aurelien Jarno 2017-06-01 00:01:26 +02:00 committed by Richard Henderson
parent 1541778721
commit 5d4a655a41
4 changed files with 36 additions and 0 deletions
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1
target/s390x/helper.h
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@ -91,6 +91,7 @@ DEF_HELPER_FLAGS_4(pku, TCG_CALL_NO_WG, void, env, i64, i64, i32)
DEF_HELPER_FLAGS_4(unpk, TCG_CALL_NO_WG, void, env, i32, i64, i64)
DEF_HELPER_FLAGS_4(unpka, TCG_CALL_NO_WG, i32, env, i64, i32, i64)
DEF_HELPER_FLAGS_4(unpku, TCG_CALL_NO_WG, i32, env, i64, i32, i64)
DEF_HELPER_FLAGS_3(tp, TCG_CALL_NO_WG, i32, env, i64, i32)
DEF_HELPER_FLAGS_4(tr, TCG_CALL_NO_WG, void, env, i32, i64, i64)
DEF_HELPER_4(tre, i64, env, i64, i64, i64)
DEF_HELPER_4(trt, i32, env, i32, i64, i64)

3
target/s390x/insn-data.def
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@ -852,6 +852,9 @@
C(0xed11, TCDB, RXE, Z, f1_o, a2, 0, 0, tcdb, 0)
C(0xed12, TCXB, RXE, Z, x1_o, a2, 0, 0, tcxb, 0)
/* TEST DECIMAL */
C(0xebc0, TP, RSL, E2, la1, 0, 0, 0, tp, 0)
/* TEST UNDER MASK */
C(0x9100, TM, SI, Z, m1_8u, i2_8u, 0, 0, 0, tm32)
C(0xeb51, TMY, SIY, LD, m1_8u, i2_8u, 0, 0, 0, tm32)

23
target/s390x/mem_helper.c
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@ -1088,6 +1088,29 @@ uint32_t HELPER(unpku)(CPUS390XState *env, uint64_t dest, uint32_t destlen,
return do_unpkau(env, dest, destlen, 2, src, GETPC());
}
uint32_t HELPER(tp)(CPUS390XState *env, uint64_t dest, uint32_t destlen)
{
uintptr_t ra = GETPC();
uint32_t cc = 0;
int i;
for (i = 0; i < destlen; i++) {
uint8_t b = cpu_ldub_data_ra(env, dest + i, ra);
/* digit */
cc |= (b & 0xf0) > 0x90 ? 2 : 0;
if (i == (destlen - 1)) {
/* sign */
cc |= (b & 0xf) < 0xa ? 1 : 0;
} else {
/* digit */
cc |= (b & 0xf) > 0x9 ? 2 : 0;
}
}
return cc;
}
static uint32_t do_helper_tr(CPUS390XState *env, uint32_t len, uint64_t array,
uint64_t trans, uintptr_t ra)
{

9
target/s390x/translate.c
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@ -4305,6 +4305,15 @@ static ExitStatus op_tprot(DisasContext *s, DisasOps *o)
#endif
static ExitStatus op_tp(DisasContext *s, DisasOps *o)
{
TCGv_i32 l1 = tcg_const_i32(get_field(s->fields, l1) + 1);
gen_helper_tp(cc_op, cpu_env, o->addr1, l1);
tcg_temp_free_i32(l1);
set_cc_static(s);
return NO_EXIT;
}
static ExitStatus op_tr(DisasContext *s, DisasOps *o)
{
TCGv_i32 l = tcg_const_i32(get_field(s->fields, l1));