[Qemu-devel] [PATCH 091/126] target-s390: Convert SCKC, STCKC

[Richard Henderson <rth@twiddle.net>]

Signed-off-by: Richard Henderson <rth@twiddle.net>
---
 target-s390x/helper.h      |  2 +-
 target-s390x/insn-data.def |  4 ++++
 target-s390x/misc_helper.c |  8 +++-----
 target-s390x/translate.c   | 32 ++++++++++++++------------------
 4 files changed, 22 insertions(+), 24 deletions(-)

diff --git a/target-s390x/helper.h b/target-s390x/helper.h
index 00608c8..011e64e 100644
--- a/target-s390x/helper.h
+++ b/target-s390x/helper.h
@@ -95,7 +95,7 @@ DEF_HELPER_FLAGS_2(spx, TCG_CALL_CONST, void, env, i64)
 DEF_HELPER_FLAGS_1(stck, TCG_CALL_CONST | TCG_CALL_PURE, i64, env)
 DEF_HELPER_2(stcke, i32, env, i64)
 DEF_HELPER_FLAGS_2(sckc, TCG_CALL_CONST, void, env, i64)
-DEF_HELPER_FLAGS_2(stckc, TCG_CALL_CONST, void, env, i64)
+DEF_HELPER_FLAGS_1(stckc, TCG_CALL_CONST, i64, env)
 DEF_HELPER_FLAGS_2(spt, TCG_CALL_CONST, void, env, i64)
 DEF_HELPER_FLAGS_2(stpt, TCG_CALL_CONST, void, env, i64)
 DEF_HELPER_4(stsi, i32, env, i64, i32, i32)
diff --git a/target-s390x/insn-data.def b/target-s390x/insn-data.def
index abff0cf..a2b4c73 100644
--- a/target-s390x/insn-data.def
+++ b/target-s390x/insn-data.def
@@ -636,6 +636,8 @@
 /* SET CLOCK */
     /* ??? Not implemented - is it necessary? */
     C(0xb204, SCK,     S,     Z,   0, 0, 0, 0, 0, 0)
+/* SET CLOCK COMPARATOR */
+    C(0xb206, SCKC,    S,     Z,   0, m2_64, 0, 0, sckc, 0)
 /* SET SYSTEM MASK */
     C(0x8000, SSM,     S,     Z,   0, m2_8u, 0, 0, ssm, 0)
 /* SIGNAL PROCESSOR */
@@ -643,6 +645,8 @@
 /* STORE CLOCK */
     C(0xb205, STCK,    S,     Z,   la2, 0, new, m1_64, stck, 0)
     C(0xb27c, STCKF,   S,     Z,   la2, 0, new, m1_64, stck, 0)
+/* STORE CLOCK COMPARATOR */
+    C(0xb207, STCKC,   S,     Z,   la2, 0, new, m1_64, stckc, 0)
 /* STORE CONTROL */
     C(0xb600, STCTL,   RS_a,  Z,   0, a2, 0, 0, stctl, 0)
     C(0xeb25, STCTG,   RSY_a, Z,   0, a2, 0, 0, stctg, 0)
diff --git a/target-s390x/misc_helper.c b/target-s390x/misc_helper.c
index 8bff132..bdf3f09 100644
--- a/target-s390x/misc_helper.c
+++ b/target-s390x/misc_helper.c
@@ -773,10 +773,8 @@ uint32_t HELPER(stcke)(CPUS390XState *env, uint64_t a1)
 }
 
 /* Set Clock Comparator */
-void HELPER(sckc)(CPUS390XState *env, uint64_t a1)
+void HELPER(sckc)(CPUS390XState *env, uint64_t time)
 {
-    uint64_t time = cpu_ldq_data(env, a1);
-
     if (time == -1ULL) {
         return;
     }
@@ -790,10 +788,10 @@ void HELPER(sckc)(CPUS390XState *env, uint64_t a1)
 }
 
 /* Store Clock Comparator */
-void HELPER(stckc)(CPUS390XState *env, uint64_t a1)
+uint64_t HELPER(stckc)(CPUS390XState *env)
 {
     /* XXX implement */
-    cpu_stq_data(env, a1, 0);
+    return 0;
 }
 
 /* Set CPU Timer */
diff --git a/target-s390x/translate.c b/target-s390x/translate.c
index dcb0c01..bcf0809 100644
--- a/target-s390x/translate.c
+++ b/target-s390x/translate.c
@@ -1030,24 +1030,6 @@ static void disas_b2(DisasContext *s, int op, uint32_t insn)
     LOG_DISAS("disas_b2: op 0x%x r1 %d r2 %d\n", op, r1, r2);
 
     switch (op) {
-    case 0x06: /* SCKC     D2(B2)     [S] */
-        /* Set Clock Comparator */
-        check_privileged(s);
-        decode_rs(s, insn, &r1, &r3, &b2, &d2);
-        tmp = get_address(s, 0, b2, d2);
-        potential_page_fault(s);
-        gen_helper_sckc(cpu_env, tmp);
-        tcg_temp_free_i64(tmp);
-        break;
-    case 0x07: /* STCKC    D2(B2)     [S] */
-        /* Store Clock Comparator */
-        check_privileged(s);
-        decode_rs(s, insn, &r1, &r3, &b2, &d2);
-        tmp = get_address(s, 0, b2, d2);
-        potential_page_fault(s);
-        gen_helper_stckc(cpu_env, tmp);
-        tcg_temp_free_i64(tmp);
-        break;
     case 0x08: /* SPT      D2(B2)     [S] */
         /* Set CPU Timer */
         check_privileged(s);
@@ -2893,6 +2875,20 @@ static ExitStatus op_stck(DisasContext *s, DisasOps *o)
     return NO_EXIT;
 }
 
+static ExitStatus op_sckc(DisasContext *s, DisasOps *o)
+{
+    check_privileged(s);
+    gen_helper_sckc(cpu_env, o->in2);
+    return NO_EXIT;
+}
+
+static ExitStatus op_stckc(DisasContext *s, DisasOps *o)
+{
+    check_privileged(s);
+    gen_helper_stckc(o->out, cpu_env);
+    return NO_EXIT;
+}
+
 static ExitStatus op_stnsm(DisasContext *s, DisasOps *o)
 {
     uint64_t i2 = get_field(s->fields, i2);
-- 
1.7.11.4