diff --git a/target/sparc/insns.decode b/target/sparc/insns.decode
index 5dd05bb211..d3badc6db3 100644
--- a/target/sparc/insns.decode
+++ b/target/sparc/insns.decode
@@ -240,6 +240,9 @@ FNEGd       10 ..... 110100 00000 0 0000 0110 .....        @r_r2
 FABSs       10 ..... 110100 00000 0 0000 1001 .....        @r_r2
 FABSd       10 ..... 110100 00000 0 0000 1010 .....        @r_r2
 FSQRTs      10 ..... 110100 00000 0 0010 1001 .....        @r_r2
+FSQRTd      10 ..... 110100 00000 0 0010 1010 .....        @r_r2
+FdTOx       10 ..... 110100 00000 0 1000 0010 .....        @r_r2
+FxTOd       10 ..... 110100 00000 0 1000 1000 .....        @r_r2
 FiTOs       10 ..... 110100 00000 0 1100 0100 .....        @r_r2
 FsTOi       10 ..... 110100 00000 0 1101 0001 .....        @r_r2
 
diff --git a/target/sparc/translate.c b/target/sparc/translate.c
index bad929d2da..23b287cd38 100644
--- a/target/sparc/translate.c
+++ b/target/sparc/translate.c
@@ -55,6 +55,8 @@
 #define gen_helper_restored             ({ qemu_build_not_reached(); NULL; })
 #define gen_helper_fnegd                ({ qemu_build_not_reached(); NULL; })
 #define gen_helper_fabsd                ({ qemu_build_not_reached(); NULL; })
+#define gen_helper_fdtox                ({ qemu_build_not_reached(); NULL; })
+#define gen_helper_fxtod                ({ qemu_build_not_reached(); NULL; })
 #define gen_helper_done(E)              qemu_build_not_reached()
 #define gen_helper_retry(E)             qemu_build_not_reached()
 #define gen_helper_udivx(D, E, A, B)    qemu_build_not_reached()
@@ -1538,20 +1540,6 @@ static void gen_fop_FFF(DisasContext *dc, int rd, int rs1, int rs2,
     gen_store_fpr_F(dc, rd, dst);
 }
 
-static void gen_fop_DD(DisasContext *dc, int rd, int rs,
-                       void (*gen)(TCGv_i64, TCGv_ptr, TCGv_i64))
-{
-    TCGv_i64 dst, src;
-
-    src = gen_load_fpr_D(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);
-}
-
 static void gen_fop_DDD(DisasContext *dc, int rd, int rs1, int rs2,
                         void (*gen)(TCGv_i64, TCGv_ptr, TCGv_i64, TCGv_i64))
 {
@@ -4819,6 +4807,28 @@ TRANS(FABSd, 64, do_dd, a, gen_helper_fabsd)
 TRANS(FSRCd, VIS1, do_dd, a, tcg_gen_mov_i64)
 TRANS(FNOTd, VIS1, do_dd, a, tcg_gen_not_i64)
 
+static bool do_env_dd(DisasContext *dc, arg_r_r *a,
+                      void (*func)(TCGv_i64, TCGv_env, TCGv_i64))
+{
+    TCGv_i64 dst, 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_D(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(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_fff(DisasContext *dc, arg_r_r_r *a,
                    void (*func)(TCGv_i32, TCGv_i32, TCGv_i32))
 {
@@ -4961,10 +4971,10 @@ static void disas_sparc_legacy(DisasContext *dc, unsigned int insn)
                 case 0x29: /* fsqrts */
                 case 0xc4: /* fitos */
                 case 0xd1: /* fstoi */
-                    g_assert_not_reached(); /* in decodetree */
                 case 0x2a: /* fsqrtd */
-                    gen_fop_DD(dc, rd, rs2, gen_helper_fsqrtd);
-                    break;
+                case 0x82: /* V9 fdtox */
+                case 0x88: /* V9 fxtod */
+                    g_assert_not_reached(); /* in decodetree */
                 case 0x2b: /* fsqrtq */
                     CHECK_FPU_FEATURE(dc, FLOAT128);
                     gen_fop_QQ(dc, rd, rs2, gen_helper_fsqrtq);
@@ -5069,9 +5079,6 @@ static void disas_sparc_legacy(DisasContext *dc, unsigned int insn)
                 case 0x81: /* V9 fstox */
                     gen_fop_DF(dc, rd, rs2, gen_helper_fstox);
                     break;
-                case 0x82: /* V9 fdtox */
-                    gen_fop_DD(dc, rd, rs2, gen_helper_fdtox);
-                    break;
                 case 0x83: /* V9 fqtox */
                     CHECK_FPU_FEATURE(dc, FLOAT128);
                     gen_fop_DQ(dc, rd, rs2, gen_helper_fqtox);
@@ -5079,9 +5086,6 @@ static void disas_sparc_legacy(DisasContext *dc, unsigned int insn)
                 case 0x84: /* V9 fxtos */
                     gen_fop_FD(dc, rd, rs2, gen_helper_fxtos);
                     break;
-                case 0x88: /* V9 fxtod */
-                    gen_fop_DD(dc, rd, rs2, gen_helper_fxtod);
-                    break;
                 case 0x8c: /* V9 fxtoq */
                     CHECK_FPU_FEATURE(dc, FLOAT128);
                     gen_ne_fop_QD(dc, rd, rs2, gen_helper_fxtoq);
