target-s390: Convert STIDP

Signed-off-by: Richard Henderson <rth@twiddle.net>
qemu · Jan 5, 2013 · 71bd666 · 71bd666
1 parent 4600c99
commit 71bd666
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Showing 4 changed files with 9 additions and 16 deletions.
diff --git a/target-s390x/helper.h b/target-s390x/helper.h
@@ -83,7 +83,6 @@ DEF_HELPER_FLAGS_2(sfpc, TCG_CALL_NO_RWG, void, env, i64)
 DEF_HELPER_3(servc, i32, env, i32, i64)
 DEF_HELPER_4(diag, i64, env, i32, i64, i64)
 DEF_HELPER_3(load_psw, void, env, i64, i64)
-DEF_HELPER_FLAGS_2(stidp, TCG_CALL_NO_RWG, void, env, i64)
 DEF_HELPER_FLAGS_2(spx, TCG_CALL_NO_RWG, void, env, i64)
 DEF_HELPER_FLAGS_1(sck, TCG_CALL_NO_RWG, i32, i64)
 DEF_HELPER_2(stck, i32, env, i64)

diff --git a/target-s390x/insn-data.def b/target-s390x/insn-data.def
@@ -640,6 +640,8 @@
 /* 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)
+/* STORE CPU ID */
+    C(0xb202, STIDP,   S,     Z,   la2, 0, new, m1_64, stidp, 0)
 /* STORE THEN AND SYSTEM MASK */
     C(0xac00, STNSM,   SI,    Z,   la1, 0, 0, 0, stnosm, 0)
 /* STORE THEN OR SYSTEM MASK */

diff --git a/target-s390x/misc_helper.c b/target-s390x/misc_helper.c
@@ -131,12 +131,6 @@ uint64_t HELPER(diag)(CPUS390XState *env, uint32_t num, uint64_t mem,
     return r;
 }
 
-/* Store CPU ID */
-void HELPER(stidp)(CPUS390XState *env, uint64_t a1)
-{
-    cpu_stq_data(env, a1, env->cpu_num);
-}
-
 /* Set Prefix */
 void HELPER(spx)(CPUS390XState *env, uint64_t a1)
 {

diff --git a/target-s390x/translate.c b/target-s390x/translate.c
@@ -1033,15 +1033,6 @@ static void disas_b2(CPUS390XState *env, DisasContext *s, int op,
     LOG_DISAS("disas_b2: op 0x%x r1 %d r2 %d\n", op, r1, r2);
 
     switch (op) {
-    case 0x02: /* STIDP     D2(B2)     [S] */
-        /* Store CPU ID */
-        check_privileged(s);
-        decode_rs(s, insn, &r1, &r3, &b2, &d2);
-        tmp = get_address(s, 0, b2, d2);
-        potential_page_fault(s);
-        gen_helper_stidp(cpu_env, tmp);
-        tcg_temp_free_i64(tmp);
-        break;
     case 0x04: /* SCK       D2(B2)     [S] */
         /* Set Clock */
         check_privileged(s);
@@ -2967,6 +2958,13 @@ static ExitStatus op_stctl(DisasContext *s, DisasOps *o)
     return NO_EXIT;
 }
 
+static ExitStatus op_stidp(DisasContext *s, DisasOps *o)
+{
+    check_privileged(s);
+    tcg_gen_ld32u_i64(o->out, cpu_env, offsetof(CPUS390XState, cpu_num));
+    return NO_EXIT;
+}
+
 static ExitStatus op_stnosm(DisasContext *s, DisasOps *o)
 {
     uint64_t i2 = get_field(s->fields, i2);