target-s390: Convert LOAD ZERO
Signed-off-by: Richard Henderson <rth@twiddle.net>
diff --git a/target-s390x/fpu_helper.c b/target-s390x/fpu_helper.c
index 3b28ccb..b735c2c 100644
--- a/target-s390x/fpu_helper.c
+++ b/target-s390x/fpu_helper.c
@@ -494,28 +494,6 @@
return set_cc_nz_f128(v2.q);
}
-/* load 32-bit FP zero */
-void HELPER(lzer)(CPUS390XState *env, uint32_t f1)
-{
- env->fregs[f1].l.upper = float32_zero;
-}
-
-/* load 64-bit FP zero */
-void HELPER(lzdr)(CPUS390XState *env, uint32_t f1)
-{
- env->fregs[f1].d = float64_zero;
-}
-
-/* load 128-bit FP zero */
-void HELPER(lzxr)(CPUS390XState *env, uint32_t f1)
-{
- CPU_QuadU x;
-
- x.q = float64_to_float128(float64_zero, &env->fpu_status);
- env->fregs[f1].ll = x.ll.upper;
- env->fregs[f1 + 1].ll = x.ll.lower;
-}
-
/* 32-bit FP multiply and add */
uint64_t HELPER(maeb)(CPUS390XState *env, uint64_t f1,
uint64_t f2, uint64_t f3)
diff --git a/target-s390x/helper.h b/target-s390x/helper.h
index eb8d663..89a3218 100644
--- a/target-s390x/helper.h
+++ b/target-s390x/helper.h
@@ -62,9 +62,6 @@
DEF_HELPER_4(cgebr, i32, env, i32, i32, i32)
DEF_HELPER_4(cgdbr, i32, env, i32, i32, i32)
DEF_HELPER_4(cgxbr, i32, env, i32, i32, i32)
-DEF_HELPER_2(lzer, void, env, i32)
-DEF_HELPER_2(lzdr, void, env, i32)
-DEF_HELPER_2(lzxr, void, env, i32)
DEF_HELPER_4(cfebr, i32, env, i32, i32, i32)
DEF_HELPER_4(cfdbr, i32, env, i32, i32, i32)
DEF_HELPER_4(cfxbr, i32, env, i32, i32, i32)
diff --git a/target-s390x/insn-data.def b/target-s390x/insn-data.def
index 93fd3ca..e6b9a5a 100644
--- a/target-s390x/insn-data.def
+++ b/target-s390x/insn-data.def
@@ -329,6 +329,10 @@
C(0xe31f, LRVH, RXY_a, Z, 0, m2_16u, new, r1_16, rev16, 0)
C(0xe31e, LRV, RXY_a, Z, 0, m2_32u, new, r1_32, rev32, 0)
C(0xe30f, LRVG, RXY_a, Z, 0, m2_64, r1, 0, rev64, 0)
+/* LOAD ZERO */
+ C(0xb374, LZER, RRE, Z, 0, 0, 0, e1, zero, 0)
+ C(0xb375, LZDR, RRE, Z, 0, 0, 0, f1, zero, 0)
+ C(0xb376, LZXR, RRE, Z, 0, 0, 0, x1, zero2, 0)
/* LOAD LENGTHENED */
C(0xb304, LDEBR, RRE, Z, 0, e2, f1, 0, ldeb, 0)
diff --git a/target-s390x/translate.c b/target-s390x/translate.c
index dd77998..b1bcfd3 100644
--- a/target-s390x/translate.c
+++ b/target-s390x/translate.c
@@ -1385,21 +1385,6 @@
tcg_temp_free_i32(tmp32_2);
switch (op) {
- case 0x74: /* LZER R1 [RRE] */
- tmp32_1 = tcg_const_i32(r1);
- gen_helper_lzer(cpu_env, tmp32_1);
- tcg_temp_free_i32(tmp32_1);
- break;
- case 0x75: /* LZDR R1 [RRE] */
- tmp32_1 = tcg_const_i32(r1);
- gen_helper_lzdr(cpu_env, tmp32_1);
- tcg_temp_free_i32(tmp32_1);
- break;
- case 0x76: /* LZXR R1 [RRE] */
- tmp32_1 = tcg_const_i32(r1);
- gen_helper_lzxr(cpu_env, tmp32_1);
- tcg_temp_free_i32(tmp32_1);
- break;
case 0x84: /* SFPC R1 [RRE] */
tmp32_1 = load_reg32(r1);
tcg_gen_st_i32(tmp32_1, cpu_env, offsetof(CPUS390XState, fpc));
@@ -3310,6 +3295,20 @@
return NO_EXIT;
}
+static ExitStatus op_zero(DisasContext *s, DisasOps *o)
+{
+ o->out = tcg_const_i64(0);
+ return NO_EXIT;
+}
+
+static ExitStatus op_zero2(DisasContext *s, DisasOps *o)
+{
+ o->out = tcg_const_i64(0);
+ o->out2 = o->out;
+ o->g_out2 = true;
+ return NO_EXIT;
+}
+
/* ====================================================================== */
/* The "Cc OUTput" generators. Given the generated output (and in some cases
the original inputs), update the various cc data structures in order to
