diff --git a/target/sparc/insns.decode b/target/sparc/insns.decode
index e1f5394d17..807ed3f66f 100644
--- a/target/sparc/insns.decode
+++ b/target/sparc/insns.decode
@@ -241,10 +241,13 @@ RETRY       10 00001 111110 00000 0 0000000000000
 
 FMOVs       10 ..... 110100 00000 0 0000 0001 .....        @r_r2
 FMOVd       10 ..... 110100 00000 0 0000 0010 .....        @r_r2
+FMOVq       10 ..... 110100 00000 0 0000 0011 .....        @r_r2
 FNEGs       10 ..... 110100 00000 0 0000 0101 .....        @r_r2
 FNEGd       10 ..... 110100 00000 0 0000 0110 .....        @r_r2
+FNEGq       10 ..... 110100 00000 0 0000 0111 .....        @r_r2
 FABSs       10 ..... 110100 00000 0 0000 1001 .....        @r_r2
 FABSd       10 ..... 110100 00000 0 0000 1010 .....        @r_r2
+FABSq       10 ..... 110100 00000 0 0000 1011 .....        @r_r2
 FSQRTs      10 ..... 110100 00000 0 0010 1001 .....        @r_r2
 FSQRTd      10 ..... 110100 00000 0 0010 1010 .....        @r_r2
 FSQRTq      10 ..... 110100 00000 0 0010 1011 .....        @r_r2
diff --git a/target/sparc/translate.c b/target/sparc/translate.c
index 40823f1325..e6451f3950 100644
--- a/target/sparc/translate.c
+++ b/target/sparc/translate.c
@@ -63,6 +63,7 @@
 # define gen_helper_write_softint(E, S)         qemu_build_not_reached()
 # define gen_helper_wrpil(E, S)                 qemu_build_not_reached()
 # define gen_helper_wrpstate(E, S)              qemu_build_not_reached()
+# define gen_helper_fabsq                ({ qemu_build_not_reached(); NULL; })
 # define gen_helper_fdtox                ({ qemu_build_not_reached(); NULL; })
 # define gen_helper_fexpand              ({ qemu_build_not_reached(); NULL; })
 # define gen_helper_fmul8sux16           ({ qemu_build_not_reached(); NULL; })
@@ -72,12 +73,13 @@
 # define gen_helper_fmul8x16             ({ qemu_build_not_reached(); NULL; })
 # define gen_helper_fmuld8sux16          ({ qemu_build_not_reached(); NULL; })
 # define gen_helper_fmuld8ulx16          ({ qemu_build_not_reached(); NULL; })
+# define gen_helper_fnegq                ({ qemu_build_not_reached(); NULL; })
 # define gen_helper_fpmerge              ({ qemu_build_not_reached(); NULL; })
 # define gen_helper_fqtox                ({ 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_fxtoq                ({ 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
@@ -267,18 +269,6 @@ static void gen_op_store_QT0_fpr(unsigned int dst)
                    offsetof(CPU_QuadU, ll.lower));
 }
 
-#ifdef TARGET_SPARC64
-static void gen_move_Q(DisasContext *dc, unsigned int rd, unsigned int rs)
-{
-    rd = QFPREG(rd);
-    rs = QFPREG(rs);
-
-    tcg_gen_mov_i64(cpu_fpr[rd / 2], cpu_fpr[rs / 2]);
-    tcg_gen_mov_i64(cpu_fpr[rd / 2 + 1], cpu_fpr[rs / 2 + 1]);
-    gen_update_fprs_dirty(dc, rd);
-}
-#endif
-
 /* moves */
 #ifdef CONFIG_USER_ONLY
 #define supervisor(dc) 0
@@ -1660,19 +1650,6 @@ static int gen_trap_ifnofpu(DisasContext *dc)
     return 0;
 }
 
-#ifdef TARGET_SPARC64
-static void gen_ne_fop_QQ(DisasContext *dc, int rd, int rs,
-                          void (*gen)(TCGv_ptr))
-{
-    gen_op_load_fpr_QT1(QFPREG(rs));
-
-    gen(tcg_env);
-
-    gen_op_store_QT0_fpr(QFPREG(rd));
-    gen_update_fprs_dirty(dc, QFPREG(rd));
-}
-#endif
-
 /* asi moves */
 typedef enum {
     GET_ASI_HELPER,
@@ -4709,6 +4686,50 @@ 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 trans_FMOVq(DisasContext *dc, arg_FMOVq *a)
+{
+    int rd, rs;
+
+    if (!avail_64(dc)) {
+        return false;
+    }
+    if (gen_trap_ifnofpu(dc)) {
+        return true;
+    }
+    if (gen_trap_float128(dc)) {
+        return true;
+    }
+
+    gen_op_clear_ieee_excp_and_FTT();
+    rd = QFPREG(a->rd);
+    rs = QFPREG(a->rs);
+    tcg_gen_mov_i64(cpu_fpr[rd / 2], cpu_fpr[rs / 2]);
+    tcg_gen_mov_i64(cpu_fpr[rd / 2 + 1], cpu_fpr[rs / 2 + 1]);
+    gen_update_fprs_dirty(dc, rd);
+    return advance_pc(dc);
+}
+
+static bool do_qq(DisasContext *dc, arg_r_r *a,
+                  void (*func)(TCGv_env))
+{
+    if (gen_trap_ifnofpu(dc)) {
+        return true;
+    }
+    if (gen_trap_float128(dc)) {
+        return true;
+    }
+
+    gen_op_clear_ieee_excp_and_FTT();
+    gen_op_load_fpr_QT1(QFPREG(a->rs));
+    func(tcg_env);
+    gen_op_store_QT0_fpr(QFPREG(a->rd));
+    gen_update_fprs_dirty(dc, QFPREG(a->rd));
+    return advance_pc(dc);
+}
+
+TRANS(FNEGq, 64, do_qq, a, gen_helper_fnegq)
+TRANS(FABSq, 64, do_qq, a, gen_helper_fabsq)
+
 static bool do_env_qq(DisasContext *dc, arg_r_r *a,
                        void (*func)(TCGv_env))
 {
@@ -5063,74 +5084,7 @@ static void disas_sparc_legacy(DisasContext *dc, unsigned int insn)
             TCGv cpu_dst __attribute__((unused)) = tcg_temp_new();
 
             if (xop == 0x34) {   /* FPU Operations */
-                if (gen_trap_ifnofpu(dc)) {
-                    goto jmp_insn;
-                }
-                gen_op_clear_ieee_excp_and_FTT();
-                rs1 = GET_FIELD(insn, 13, 17);
-                rs2 = GET_FIELD(insn, 27, 31);
-                xop = GET_FIELD(insn, 18, 26);
-
-                switch (xop) {
-                case 0x1: /* fmovs */
-                case 0x5: /* fnegs */
-                case 0x9: /* fabss */
-                case 0x2: /* V9 fmovd */
-                case 0x6: /* V9 fnegd */
-                case 0xa: /* V9 fabsd */
-                case 0x29: /* fsqrts */
-                case 0xc4: /* fitos */
-                case 0xd1: /* fstoi */
-                case 0x2a: /* fsqrtd */
-                case 0x82: /* V9 fdtox */
-                case 0x88: /* V9 fxtod */
-                case 0x2b: /* fsqrtq */
-                case 0x41: /* fadds */
-                case 0x45: /* fsubs */
-                case 0x49: /* fmuls */
-                case 0x4d: /* fdivs */
-                case 0x42: /* faddd */
-                case 0x46: /* fsubd */
-                case 0x4a: /* fmuld */
-                case 0x4e: /* fdivd */
-                case 0x43: /* faddq */
-                case 0x47: /* fsubq */
-                case 0x4b: /* fmulq */
-                case 0x4f: /* fdivq */
-                case 0x69: /* fsmuld */
-                case 0x6e: /* fdmulq */
-                case 0xc6: /* fdtos */
-                case 0xd2: /* fdtoi */
-                case 0x84: /* V9 fxtos */
-                case 0xc8: /* fitod */
-                case 0xc9: /* fstod */
-                case 0x81: /* V9 fstox */
-                case 0xc7: /* fqtos */
-                case 0xd3: /* fqtoi */
-                case 0xcb: /* fqtod */
-                case 0x83: /* V9 fqtox */
-                case 0xcc: /* fitoq */
-                case 0xcd: /* fstoq */
-                case 0xce: /* fdtoq */
-                case 0x8c: /* V9 fxtoq */
-                    g_assert_not_reached(); /* in decodetree */
-#ifdef TARGET_SPARC64
-                case 0x3: /* V9 fmovq */
-                    CHECK_FPU_FEATURE(dc, FLOAT128);
-                    gen_move_Q(dc, rd, rs2);
-                    break;
-                case 0x7: /* V9 fnegq */
-                    CHECK_FPU_FEATURE(dc, FLOAT128);
-                    gen_ne_fop_QQ(dc, rd, rs2, gen_helper_fnegq);
-                    break;
-                case 0xb: /* V9 fabsq */
-                    CHECK_FPU_FEATURE(dc, FLOAT128);
-                    gen_ne_fop_QQ(dc, rd, rs2, gen_helper_fabsq);
-                    break;
-#endif
-                default:
-                    goto illegal_insn;
-                }
+                goto illegal_insn; /* in decodetree */
             } else if (xop == 0x35) {   /* FPU Operations */
 #ifdef TARGET_SPARC64
                 int cond;
