target/s390x: implement COMPARE AND SIGNAL

These functions differ from COMPARE by generating an exception for a
QNaN input. Use the non quiet version of floatXX_compare.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Message-Id: <20170531220129.27724-10-aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>

1 files changed, 21 insertions, 0 deletions

diff --git a/target/s390x/translate.c b/target/s390x/translate.c
index b3cc349150..0a35eed6cf 100644
--- a/target/s390x/translate.c
+++ b/target/s390x/translate.c
@@ -2374,6 +2374,27 @@ static ExitStatus op_iske(DisasContext *s, DisasOps *o)
 }
 #endif
 
+static ExitStatus op_keb(DisasContext *s, DisasOps *o)
+{
+    gen_helper_keb(cc_op, cpu_env, o->in1, o->in2);
+    set_cc_static(s);
+    return NO_EXIT;
+}
+
+static ExitStatus op_kdb(DisasContext *s, DisasOps *o)
+{
+    gen_helper_kdb(cc_op, cpu_env, o->in1, o->in2);
+    set_cc_static(s);
+    return NO_EXIT;
+}
+
+static ExitStatus op_kxb(DisasContext *s, DisasOps *o)
+{
+    gen_helper_kxb(cc_op, cpu_env, o->out, o->out2, o->in1, o->in2);
+    set_cc_static(s);
+    return NO_EXIT;
+}
+
 static ExitStatus op_laa(DisasContext *s, DisasOps *o)
 {
     /* The real output is indeed the original value in memory;