target-s390x: implement TRANSLATE AND TEST instruction
It is part of the basic zArchitecture instructions. Allow it to be call
from EXECUTE.
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Alexander Graf <agraf@suse.de>
diff --git a/target-s390x/helper.h b/target-s390x/helper.h
index cb0b421..48b015e 100644
--- a/target-s390x/helper.h
+++ b/target-s390x/helper.h
@@ -77,6 +77,7 @@
DEF_HELPER_FLAGS_1(cvd, TCG_CALL_NO_RWG_SE, i64, s32)
DEF_HELPER_FLAGS_4(unpk, TCG_CALL_NO_WG, void, env, i32, i64, i64)
DEF_HELPER_FLAGS_4(tr, TCG_CALL_NO_WG, void, env, i32, i64, i64)
+DEF_HELPER_4(trt, i32, env, i32, i64, i64)
DEF_HELPER_4(cksm, i64, env, i64, i64, i64)
DEF_HELPER_FLAGS_5(calc_cc, TCG_CALL_NO_RWG_SE, i32, env, i32, i64, i64, i64)
DEF_HELPER_FLAGS_2(sfpc, TCG_CALL_NO_RWG, void, env, i64)
diff --git a/target-s390x/insn-data.def b/target-s390x/insn-data.def
index a12939d..e401754 100644
--- a/target-s390x/insn-data.def
+++ b/target-s390x/insn-data.def
@@ -759,6 +759,8 @@
/* TRANSLATE */
C(0xdc00, TR, SS_a, Z, la1, a2, 0, 0, tr, 0)
+/* TRANSLATE AND TEST */
+ C(0xdd00, TRT, SS_a, Z, la1, a2, 0, 0, trt, 0)
/* UNPACK */
/* Really format SS_b, but we pack both lengths into one argument
diff --git a/target-s390x/mem_helper.c b/target-s390x/mem_helper.c
index 0e8cd0f..e19e1aa 100644
--- a/target-s390x/mem_helper.c
+++ b/target-s390x/mem_helper.c
@@ -509,6 +509,9 @@
case 0xc00:
helper_tr(env, l, get_address(env, 0, b1, d1),
get_address(env, 0, b2, d2));
+ case 0xd00:
+ cc = helper_trt(env, l, get_address(env, 0, b1, d1),
+ get_address(env, 0, b2, d2));
break;
default:
goto abort;
@@ -801,6 +804,27 @@
}
}
+uint32_t HELPER(trt)(CPUS390XState *env, uint32_t len, uint64_t array,
+ uint64_t trans)
+{
+ uint32_t cc = 0;
+ int i;
+
+ for (i = 0; i <= len; i++) {
+ uint8_t byte = cpu_ldub_data(env, array + i);
+ uint8_t sbyte = cpu_ldub_data(env, trans + byte);
+
+ if (sbyte != 0) {
+ env->regs[1] = array + i;
+ env->regs[2] = (env->regs[2] & ~0xff) | sbyte;
+ cc = (i == len) ? 2 : 1;
+ break;
+ }
+ }
+
+ return cc;
+}
+
#if !defined(CONFIG_USER_ONLY)
void HELPER(lctlg)(CPUS390XState *env, uint32_t r1, uint64_t a2, uint32_t r3)
{
diff --git a/target-s390x/translate.c b/target-s390x/translate.c
index b0dbfe8..003598d 100644
--- a/target-s390x/translate.c
+++ b/target-s390x/translate.c
@@ -3787,6 +3787,16 @@
return NO_EXIT;
}
+static ExitStatus op_trt(DisasContext *s, DisasOps *o)
+{
+ TCGv_i32 l = tcg_const_i32(get_field(s->fields, l1));
+ potential_page_fault(s);
+ gen_helper_trt(cc_op, cpu_env, l, o->addr1, o->in2);
+ tcg_temp_free_i32(l);
+ set_cc_static(s);
+ return NO_EXIT;
+}
+
static ExitStatus op_unpk(DisasContext *s, DisasOps *o)
{
TCGv_i32 l = tcg_const_i32(get_field(s->fields, l1));
