diff --git a/target/sparc/insns.decode b/target/sparc/insns.decode
index 5777e142df..3ad598a08b 100644
--- a/target/sparc/insns.decode
+++ b/target/sparc/insns.decode
@@ -262,11 +262,14 @@ FDIVd       10 ..... 110100 ..... 0 0100 1110 .....        @r_r_r
 FDIVq       10 ..... 110100 ..... 0 0100 1111 .....        @r_r_r
 FsMULd      10 ..... 110100 ..... 0 0110 1001 .....        @r_r_r
 FdMULq      10 ..... 110100 ..... 0 0110 1110 .....        @r_r_r
+FsTOx       10 ..... 110100 00000 0 1000 0001 .....        @r_r2
 FdTOx       10 ..... 110100 00000 0 1000 0010 .....        @r_r2
 FxTOs       10 ..... 110100 00000 0 1000 0100 .....        @r_r2
 FxTOd       10 ..... 110100 00000 0 1000 1000 .....        @r_r2
 FiTOs       10 ..... 110100 00000 0 1100 0100 .....        @r_r2
 FdTOs       10 ..... 110100 00000 0 1100 0110 .....        @r_r2
+FiTOd       10 ..... 110100 00000 0 1100 1000 .....        @r_r2
+FsTOd       10 ..... 110100 00000 0 1100 1001 .....        @r_r2
 FsTOi       10 ..... 110100 00000 0 1101 0001 .....        @r_r2
 FdTOi       10 ..... 110100 00000 0 1101 0010 .....        @r_r2
 
diff --git a/target/sparc/translate.c b/target/sparc/translate.c
index 9f686a9995..0eb56f5fac 100644
--- a/target/sparc/translate.c
+++ b/target/sparc/translate.c
@@ -54,6 +54,7 @@
 #define gen_helper_saved                ({ qemu_build_not_reached(); NULL; })
 #define gen_helper_restored             ({ qemu_build_not_reached(); NULL; })
 #define gen_helper_fdtox                ({ qemu_build_not_reached(); NULL; })
+#define gen_helper_fstox                ({ qemu_build_not_reached(); NULL; })
 #define gen_helper_fxtod                ({ qemu_build_not_reached(); NULL; })
 #define gen_helper_fxtos                ({ qemu_build_not_reached(); NULL; })
 #define gen_helper_fnegd(D, S)          qemu_build_not_reached()
@@ -1667,37 +1668,6 @@ static void gen_ne_fop_QQ(DisasContext *dc, int rd, int rs,
 }
 #endif
 
-#ifdef TARGET_SPARC64
-static void gen_fop_DF(DisasContext *dc, int rd, int rs,
-                       void (*gen)(TCGv_i64, TCGv_ptr, TCGv_i32))
-{
-    TCGv_i64 dst;
-    TCGv_i32 src;
-
-    src = gen_load_fpr_F(dc, rs);
-    dst = gen_dest_fpr_D(dc, rd);
-
-    gen(dst, tcg_env, src);
-    gen_helper_check_ieee_exceptions(cpu_fsr, tcg_env);
-
-    gen_store_fpr_D(dc, rd, dst);
-}
-#endif
-
-static void gen_ne_fop_DF(DisasContext *dc, int rd, int rs,
-                          void (*gen)(TCGv_i64, TCGv_ptr, TCGv_i32))
-{
-    TCGv_i64 dst;
-    TCGv_i32 src;
-
-    src = gen_load_fpr_F(dc, rs);
-    dst = gen_dest_fpr_D(dc, rd);
-
-    gen(dst, tcg_env, src);
-
-    gen_store_fpr_D(dc, rd, dst);
-}
-
 static void gen_fop_FQ(DisasContext *dc, int rd, int rs,
                        void (*gen)(TCGv_i32, TCGv_ptr))
 {
@@ -4886,6 +4856,29 @@ TRANS(FSQRTd, ALL, do_env_dd, a, gen_helper_fsqrtd)
 TRANS(FxTOd, 64, do_env_dd, a, gen_helper_fxtod)
 TRANS(FdTOx, 64, do_env_dd, a, gen_helper_fdtox)
 
+static bool do_env_df(DisasContext *dc, arg_r_r *a,
+                      void (*func)(TCGv_i64, TCGv_env, TCGv_i32))
+{
+    TCGv_i64 dst;
+    TCGv_i32 src;
+
+    if (gen_trap_ifnofpu(dc)) {
+        return true;
+    }
+
+    gen_op_clear_ieee_excp_and_FTT();
+    dst = gen_dest_fpr_D(dc, a->rd);
+    src = gen_load_fpr_F(dc, a->rs);
+    func(dst, tcg_env, src);
+    gen_helper_check_ieee_exceptions(cpu_fsr, tcg_env);
+    gen_store_fpr_D(dc, a->rd, dst);
+    return advance_pc(dc);
+}
+
+TRANS(FiTOd, ALL, do_env_df, a, gen_helper_fitod)
+TRANS(FsTOd, ALL, do_env_df, a, gen_helper_fstod)
+TRANS(FsTOx, 64, do_env_df, a, gen_helper_fstox)
+
 static bool do_env_qq(DisasContext *dc, arg_r_r *a,
                        void (*func)(TCGv_env))
 {
@@ -5185,17 +5178,14 @@ static void disas_sparc_legacy(DisasContext *dc, unsigned int insn)
                 case 0xc6: /* fdtos */
                 case 0xd2: /* fdtoi */
                 case 0x84: /* V9 fxtos */
+                case 0xc8: /* fitod */
+                case 0xc9: /* fstod */
+                case 0x81: /* V9 fstox */
                     g_assert_not_reached(); /* in decodetree */
                 case 0xc7: /* fqtos */
                     CHECK_FPU_FEATURE(dc, FLOAT128);
                     gen_fop_FQ(dc, rd, rs2, gen_helper_fqtos);
                     break;
-                case 0xc8: /* fitod */
-                    gen_ne_fop_DF(dc, rd, rs2, gen_helper_fitod);
-                    break;
-                case 0xc9: /* fstod */
-                    gen_ne_fop_DF(dc, rd, rs2, gen_helper_fstod);
-                    break;
                 case 0xcb: /* fqtod */
                     CHECK_FPU_FEATURE(dc, FLOAT128);
                     gen_fop_DQ(dc, rd, rs2, gen_helper_fqtod);
@@ -5229,9 +5219,6 @@ static void disas_sparc_legacy(DisasContext *dc, unsigned int insn)
                     CHECK_FPU_FEATURE(dc, FLOAT128);
                     gen_ne_fop_QQ(dc, rd, rs2, gen_helper_fabsq);
                     break;
-                case 0x81: /* V9 fstox */
-                    gen_fop_DF(dc, rd, rs2, gen_helper_fstox);
-                    break;
                 case 0x83: /* V9 fqtox */
                     CHECK_FPU_FEATURE(dc, FLOAT128);
                     gen_fop_DQ(dc, rd, rs2, gen_helper_fqtox);
