}
#if defined(TARGET_PPC64)
-static void do_cntlzdm(TCGv_i64 dst, TCGv_i64 src, TCGv_i64 mask)
+static void do_cntzdm(TCGv_i64 dst, TCGv_i64 src, TCGv_i64 mask, bool trail)
{
TCGv_i64 tmp;
TCGLabel *l1;
l1 = gen_new_label();
tcg_gen_and_i64(tmp, src, mask);
- tcg_gen_clzi_i64(tmp, tmp, 64);
+ if (trail) {
+ tcg_gen_ctzi_i64(tmp, tmp, 64);
+ } else {
+ tcg_gen_clzi_i64(tmp, tmp, 64);
+ }
tcg_gen_brcondi_i64(TCG_COND_EQ, tmp, 0, l1);
tcg_gen_subfi_i64(tmp, 64, tmp);
- tcg_gen_shr_i64(tmp, mask, tmp);
+ if (trail) {
+ tcg_gen_shl_i64(tmp, mask, tmp);
+ } else {
+ tcg_gen_shr_i64(tmp, mask, tmp);
+ }
tcg_gen_ctpop_i64(tmp, tmp);
gen_set_label(l1);
REQUIRE_64BIT(ctx);
REQUIRE_INSNS_FLAGS2(ctx, ISA310);
#if defined(TARGET_PPC64)
- do_cntlzdm(cpu_gpr[a->ra], cpu_gpr[a->rt], cpu_gpr[a->rb]);
+ do_cntzdm(cpu_gpr[a->ra], cpu_gpr[a->rt], cpu_gpr[a->rb], false);
+#else
+ qemu_build_not_reached();
+#endif
+ return true;
+}
+
+static bool trans_CNTTZDM(DisasContext *ctx, arg_X *a)
+{
+ REQUIRE_64BIT(ctx);
+ REQUIRE_INSNS_FLAGS2(ctx, ISA310);
+#if defined(TARGET_PPC64)
+ do_cntzdm(cpu_gpr[a->ra], cpu_gpr[a->rt], cpu_gpr[a->rb], true);
#else
qemu_build_not_reached();
#endif