target/sparc: Move FPACK16, FPACKFIX to decodetree

Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Acked-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
qemu · Oct 25, 2023 · 2f72264 · 2f72264
1 parent e2fa6bd
commit 2f72264
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Showing 2 changed files with 42 additions and 15 deletions.
diff --git a/target/sparc/insns.decode b/target/sparc/insns.decode
@@ -344,6 +344,8 @@ FCMPEq      10 000 cc:2 110101 rs1:5  0 0101 0111 rs2:5
     FMULD8SUx16 10 ..... 110110 ..... 0 0011 1000 .....    @r_r_r
     FMULD8ULx16 10 ..... 110110 ..... 0 0011 1001 .....    @r_r_r
     FPACK32     10 ..... 110110 ..... 0 0011 1010 .....    @r_r_r
+    FPACK16     10 ..... 110110 00000 0 0011 1011 .....    @r_r2
+    FPACKFIX    10 ..... 110110 00000 0 0011 1101 .....    @r_r2
     PDIST       10 ..... 110110 ..... 0 0011 1110 .....    @r_r_r
 
     FALIGNDATAg 10 ..... 110110 ..... 0 0100 1000 .....    @r_r_r

diff --git a/target/sparc/translate.c b/target/sparc/translate.c
@@ -756,6 +756,24 @@ static void gen_op_array32(TCGv dst, TCGv src1, TCGv src2)
     tcg_gen_shli_tl(dst, dst, 2);
 }
 
+static void gen_op_fpack16(TCGv_i32 dst, TCGv_i64 src)
+{
+#ifdef TARGET_SPARC64
+    gen_helper_fpack16(dst, cpu_gsr, src);
+#else
+    g_assert_not_reached();
+#endif
+}
+
+static void gen_op_fpackfix(TCGv_i32 dst, TCGv_i64 src)
+{
+#ifdef TARGET_SPARC64
+    gen_helper_fpackfix(dst, cpu_gsr, src);
+#else
+    g_assert_not_reached();
+#endif
+}
+
 static void gen_op_fpack32(TCGv_i64 dst, TCGv_i64 src1, TCGv_i64 src2)
 {
 #ifdef TARGET_SPARC64
@@ -4589,6 +4607,26 @@ TRANS(FABSs, ALL, do_ff, a, gen_op_fabss)
 TRANS(FSRCs, VIS1, do_ff, a, tcg_gen_mov_i32)
 TRANS(FNOTs, VIS1, do_ff, a, tcg_gen_not_i32)
 
+static bool do_fd(DisasContext *dc, arg_r_r *a,
+                  void (*func)(TCGv_i32, TCGv_i64))
+{
+    TCGv_i32 dst;
+    TCGv_i64 src;
+
+    if (gen_trap_ifnofpu(dc)) {
+        return true;
+    }
+
+    dst = gen_dest_fpr_F(dc);
+    src = gen_load_fpr_D(dc, a->rs);
+    func(dst, src);
+    gen_store_fpr_F(dc, a->rd, dst);
+    return advance_pc(dc);
+}
+
+TRANS(FPACK16, VIS1, do_fd, a, gen_op_fpack16)
+TRANS(FPACKFIX, VIS1, do_fd, a, gen_op_fpackfix)
+
 static bool do_env_ff(DisasContext *dc, arg_r_r *a,
                       void (*func)(TCGv_i32, TCGv_env, TCGv_i32))
 {
@@ -5265,10 +5303,9 @@ static void disas_sparc_legacy(DisasContext *dc, unsigned int insn)
             } else if (xop == 0x36) {
 #ifdef TARGET_SPARC64
                 /* VIS */
-                TCGv_i64 cpu_src1_64, cpu_dst_64;
+                TCGv_i64 cpu_dst_64;
                 TCGv_i32 cpu_dst_32;
                 int opf = GET_FIELD_SP(insn, 5, 13);
-                int rs2 = GET_FIELD(insn, 27, 31);
                 int rd = GET_FIELD(insn, 2, 6);
 
                 if (gen_trap_ifnofpu(dc)) {
@@ -5351,21 +5388,9 @@ static void disas_sparc_legacy(DisasContext *dc, unsigned int insn)
                 case 0x02a: /* VIS I fcmpeq16 */
                 case 0x02c: /* VIS I fcmpgt32 */
                 case 0x02e: /* VIS I fcmpeq32 */
-                    g_assert_not_reached();  /* in decodetree */
                 case 0x03b: /* VIS I fpack16 */
-                    CHECK_FPU_FEATURE(dc, VIS1);
-                    cpu_src1_64 = gen_load_fpr_D(dc, rs2);
-                    cpu_dst_32 = gen_dest_fpr_F(dc);
-                    gen_helper_fpack16(cpu_dst_32, cpu_gsr, cpu_src1_64);
-                    gen_store_fpr_F(dc, rd, cpu_dst_32);
-                    break;
                 case 0x03d: /* VIS I fpackfix */
-                    CHECK_FPU_FEATURE(dc, VIS1);
-                    cpu_src1_64 = gen_load_fpr_D(dc, rs2);
-                    cpu_dst_32 = gen_dest_fpr_F(dc);
-                    gen_helper_fpackfix(cpu_dst_32, cpu_gsr, cpu_src1_64);
-                    gen_store_fpr_F(dc, rd, cpu_dst_32);
-                    break;
+                    g_assert_not_reached();  /* in decodetree */
                 case 0x060: /* VIS I fzero */
                     CHECK_FPU_FEATURE(dc, VIS1);
                     cpu_dst_64 = gen_dest_fpr_D(dc, rd);