diff --git a/target/sparc/insns.decode b/target/sparc/insns.decode
index a19d191603..faf2bcef83 100644
--- a/target/sparc/insns.decode
+++ b/target/sparc/insns.decode
@@ -263,9 +263,12 @@ 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
 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
 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 29643768e1..6c1dcf6472 100644
--- a/target/sparc/translate.c
+++ b/target/sparc/translate.c
@@ -74,6 +74,7 @@
 # define gen_helper_fmuld8ulx16          ({ qemu_build_not_reached(); NULL; })
 # define gen_helper_fpmerge              ({ 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_pdist                ({ qemu_build_not_reached(); NULL; })
 # define FSR_LDXFSR_MASK                        0
 # define FSR_LDXFSR_OLDMASK                     0
@@ -1700,21 +1701,6 @@ static void gen_ne_fop_DF(DisasContext *dc, int rd, int rs,
     gen_store_fpr_D(dc, rd, dst);
 }
 
-static void gen_fop_FD(DisasContext *dc, int rd, int rs,
-                       void (*gen)(TCGv_i32, TCGv_ptr, TCGv_i64))
-{
-    TCGv_i32 dst;
-    TCGv_i64 src;
-
-    src = gen_load_fpr_D(dc, rs);
-    dst = gen_dest_fpr_F(dc);
-
-    gen(dst, tcg_env, src);
-    gen_helper_check_ieee_exceptions(cpu_fsr, tcg_env);
-
-    gen_store_fpr_F(dc, rd, dst);
-}
-
 static void gen_fop_FQ(DisasContext *dc, int rd, int rs,
                        void (*gen)(TCGv_i32, TCGv_ptr))
 {
@@ -4715,6 +4701,29 @@ TRANS(FSQRTs, ALL, do_env_ff, a, gen_helper_fsqrts)
 TRANS(FiTOs, ALL, do_env_ff, a, gen_helper_fitos)
 TRANS(FsTOi, ALL, do_env_ff, a, gen_helper_fstoi)
 
+static bool do_env_fd(DisasContext *dc, arg_r_r *a,
+                      void (*func)(TCGv_i32, TCGv_env, TCGv_i64))
+{
+    TCGv_i32 dst;
+    TCGv_i64 src;
+
+    if (gen_trap_ifnofpu(dc)) {
+        return true;
+    }
+
+    gen_op_clear_ieee_excp_and_FTT();
+    dst = gen_dest_fpr_F(dc);
+    src = gen_load_fpr_D(dc, a->rs);
+    func(dst, tcg_env, src);
+    gen_helper_check_ieee_exceptions(cpu_fsr, tcg_env);
+    gen_store_fpr_F(dc, a->rd, dst);
+    return advance_pc(dc);
+}
+
+TRANS(FdTOs, ALL, do_env_fd, a, gen_helper_fdtos)
+TRANS(FdTOi, ALL, do_env_fd, a, gen_helper_fdtoi)
+TRANS(FxTOs, 64, do_env_fd, a, gen_helper_fxtos)
+
 static bool do_dd(DisasContext *dc, arg_r_r *a,
                   void (*func)(TCGv_i64, TCGv_i64))
 {
@@ -5055,10 +5064,10 @@ static void disas_sparc_legacy(DisasContext *dc, unsigned int insn)
                 case 0x4f: /* fdivq */
                 case 0x69: /* fsmuld */
                 case 0x6e: /* fdmulq */
-                    g_assert_not_reached(); /* in decodetree */
                 case 0xc6: /* fdtos */
-                    gen_fop_FD(dc, rd, rs2, gen_helper_fdtos);
-                    break;
+                case 0xd2: /* fdtoi */
+                case 0x84: /* V9 fxtos */
+                    g_assert_not_reached(); /* in decodetree */
                 case 0xc7: /* fqtos */
                     CHECK_FPU_FEATURE(dc, FLOAT128);
                     gen_fop_FQ(dc, rd, rs2, gen_helper_fqtos);
@@ -5085,9 +5094,6 @@ static void disas_sparc_legacy(DisasContext *dc, unsigned int insn)
                     CHECK_FPU_FEATURE(dc, FLOAT128);
                     gen_ne_fop_QD(dc, rd, rs2, gen_helper_fdtoq);
                     break;
-                case 0xd2: /* fdtoi */
-                    gen_fop_FD(dc, rd, rs2, gen_helper_fdtoi);
-                    break;
                 case 0xd3: /* fqtoi */
                     CHECK_FPU_FEATURE(dc, FLOAT128);
                     gen_fop_FQ(dc, rd, rs2, gen_helper_fqtoi);
@@ -5112,9 +5118,6 @@ static void disas_sparc_legacy(DisasContext *dc, unsigned int insn)
                     CHECK_FPU_FEATURE(dc, FLOAT128);
                     gen_fop_DQ(dc, rd, rs2, gen_helper_fqtox);
                     break;
-                case 0x84: /* V9 fxtos */
-                    gen_fop_FD(dc, rd, rs2, gen_helper_fxtos);
-                    break;
                 case 0x8c: /* V9 fxtoq */
                     CHECK_FPU_FEATURE(dc, FLOAT128);
                     gen_ne_fop_QD(dc, rd, rs2, gen_helper_fxtoq);