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authorRichard Henderson <rth@twiddle.net>2013-09-06 09:48:08 -0700
committerRichard Henderson <rth@twiddle.net>2015-02-03 12:06:37 -0800
commite30a9d3fea58c356000ce328421fe65e03143bb1 (patch)
tree8e91b4d35f39409b2051f012f267702eb46f3ffd
parent8612c935831647c193281992738f96292428b9e6 (diff)
target-s390: Implement EPSW
Signed-off-by: Richard Henderson <rth@twiddle.net>
-rw-r--r--target-s390x/insn-data.def2
-rw-r--r--target-s390x/translate.c18
2 files changed, 20 insertions, 0 deletions
diff --git a/target-s390x/insn-data.def b/target-s390x/insn-data.def
index 42b99b2746..859cfba8a0 100644
--- a/target-s390x/insn-data.def
+++ b/target-s390x/insn-data.def
@@ -287,6 +287,8 @@
C(0xb24f, EAR, RRE, Z, 0, 0, new, r1_32, ear, 0)
/* EXTRACT FPC */
C(0xb38c, EFPC, RRE, Z, 0, 0, new, r1_32, efpc, 0)
+/* EXTRACT PSW */
+ C(0xb98d, EPSW, RRE, Z, 0, 0, 0, 0, epsw, 0)
/* FIND LEFTMOST ONE */
C(0xb983, FLOGR, RRE, EI, 0, r2_o, r1_P, 0, flogr, 0)
diff --git a/target-s390x/translate.c b/target-s390x/translate.c
index 1338bb5a34..97137c99cf 100644
--- a/target-s390x/translate.c
+++ b/target-s390x/translate.c
@@ -2051,6 +2051,24 @@ static ExitStatus op_efpc(DisasContext *s, DisasOps *o)
return NO_EXIT;
}
+static ExitStatus op_epsw(DisasContext *s, DisasOps *o)
+{
+ int r1 = get_field(s->fields, r1);
+ int r2 = get_field(s->fields, r2);
+ TCGv_i64 t = tcg_temp_new_i64();
+
+ /* Note the "subsequently" in the PoO, which implies a defined result
+ if r1 == r2. Thus we cannot defer these writes to an output hook. */
+ tcg_gen_shri_i64(t, psw_mask, 32);
+ store_reg32_i64(r1, t);
+ if (r2 != 0) {
+ store_reg32_i64(r2, psw_mask);
+ }
+
+ tcg_temp_free_i64(t);
+ return NO_EXIT;
+}
+
static ExitStatus op_ex(DisasContext *s, DisasOps *o)
{
/* ??? Perhaps a better way to implement EXECUTE is to set a bit in