[Qemu-devel] [PATCH v2 2/9] target-s390: Implement STFLE

[Richard Henderson <rth@twiddle.net>]

Signed-off-by: Richard Henderson <rth@twiddle.net>
---
 target-s390x/helper.h      |  1 +
 target-s390x/insn-data.def |  2 ++
 target-s390x/misc_helper.c | 13 +++++++++++++
 target-s390x/translate.c   |  8 ++++++++
 4 files changed, 24 insertions(+)

diff --git a/target-s390x/helper.h b/target-s390x/helper.h
index 0d80aa0..fc2a54a 100644
--- a/target-s390x/helper.h
+++ b/target-s390x/helper.h
@@ -85,6 +85,7 @@ 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)
 DEF_HELPER_FLAGS_2(sfas, TCG_CALL_NO_WG, void, env, i64)
 DEF_HELPER_FLAGS_1(popcnt, TCG_CALL_NO_RWG_SE, i64, i64)
+DEF_HELPER_FLAGS_2(stfle, TCG_CALL_NO_WG, i32, env, i64)
 
 #ifndef CONFIG_USER_ONLY
 DEF_HELPER_3(servc, i32, env, i64, i64)
diff --git a/target-s390x/insn-data.def b/target-s390x/insn-data.def
index b42ebb6..4b462d4 100644
--- a/target-s390x/insn-data.def
+++ b/target-s390x/insn-data.def
@@ -639,6 +639,8 @@
     C(0xe33e, STRV,    RXY_a, Z,   la2, r1_32u, new, m1_32, rev32, 0)
     C(0xe32f, STRVG,   RXY_a, Z,   la2, r1_o, new, m1_64, rev64, 0)
 
+/* STORE FACILITY LIST EXTENDED */
+    C(0xb2b0, STFLE,   S,  SFLE,   0, a2, 0, 0, stfle, 0)
 /* STORE FPC */
     C(0xb29c, STFPC,   S,     Z,   0, a2, new, m2_32, efpc, 0)
 
diff --git a/target-s390x/misc_helper.c b/target-s390x/misc_helper.c
index 10d0425..3cb987c 100644
--- a/target-s390x/misc_helper.c
+++ b/target-s390x/misc_helper.c
@@ -465,3 +465,16 @@ uint32_t HELPER(sigp)(CPUS390XState *env, uint64_t order_code, uint32_t r1,
     return cc;
 }
 #endif
+
+uint32_t HELPER(stfle)(CPUS390XState *env, uint64_t addr)
+{
+    int max_m1 = (env->facilities[1] != 0);
+    int count_m1 = env->regs[0] & 0xff;
+
+    cpu_stq_data(env, addr, env->facilities[0]);
+    if (count_m1 > 0) {
+        cpu_stq_data(env, addr + 8, env->facilities[1]);
+    }
+    env->regs[0] = max_m1;
+    return (count_m1 >= max_m1 ? 0 : 3);
+}
diff --git a/target-s390x/translate.c b/target-s390x/translate.c
index 2d555e2..7356625 100644
--- a/target-s390x/translate.c
+++ b/target-s390x/translate.c
@@ -3291,6 +3291,14 @@ static ExitStatus op_stura(DisasContext *s, DisasOps *o)
 }
 #endif
 
+static ExitStatus op_stfle(DisasContext *s, DisasOps *o)
+{
+    potential_page_fault(s);
+    gen_helper_stfle(cc_op, cpu_env, o->in2);
+    set_cc_static(s);
+    return NO_EXIT;
+}
+
 static ExitStatus op_st8(DisasContext *s, DisasOps *o)
 {
     tcg_gen_qemu_st8(o->in1, o->in2, get_mem_index(s));
-- 
1.8.1.4