target/microblaze: Convert dec_imm to decodetree

Tested-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

diff --git a/target/microblaze/insns.decode b/target/microblaze/insns.decode
index 4644defbfe70f4764af01f5640e18147a5195c87..ad15c16f9b0a5ec0f1bda3011a343f0ddda885ba 100644 (file)
--- a/target/microblaze/insns.decode
+++ b/target/microblaze/insns.decode
@@ -79,6 +79,8 @@ cmpu            000101 ..... ..... ..... 000 0000 0011  @typea
 idiv            010010 ..... ..... ..... 000 0000 0000  @typea
 idivu           010010 ..... ..... ..... 000 0000 0010  @typea
 
+imm             101100 00000 00000 imm:16
+
 mul             010000 ..... ..... ..... 000 0000 0000  @typea
 mulh            010000 ..... ..... ..... 000 0000 0001  @typea
 mulhu           010000 ..... ..... ..... 000 0000 0011  @typea

diff --git a/target/microblaze/translate.c b/target/microblaze/translate.c
index 964525f75e5d9aeb58e5db1685886f063750e4cc..54de136a16ae17de934e5408da070c147dd33857 100644 (file)
--- a/target/microblaze/translate.c
+++ b/target/microblaze/translate.c
@@ -477,6 +477,15 @@ static void gen_idivu(TCGv_i32 out, TCGv_i32 ina, TCGv_i32 inb)
 DO_TYPEA_CFG(idiv, use_div, true, gen_idiv)
 DO_TYPEA_CFG(idivu, use_div, true, gen_idivu)
 
+static bool trans_imm(DisasContext *dc, arg_imm *arg)
+{
+    dc->ext_imm = arg->imm << 16;
+    tcg_gen_movi_i32(cpu_imm, dc->ext_imm);
+    dc->tb_flags |= IMM_FLAG;
+    dc->clear_imm = 0;
+    return true;
+}
+
 static void gen_mulh(TCGv_i32 out, TCGv_i32 ina, TCGv_i32 inb)
 {
     TCGv_i32 tmp = tcg_temp_new_i32();
@@ -848,14 +857,6 @@ static inline void sync_jmpstate(DisasContext *dc)
     }
 }
 
-static void dec_imm(DisasContext *dc)
-{
-    dc->ext_imm = dc->imm << 16;
-    tcg_gen_movi_i32(cpu_imm, dc->ext_imm);
-    dc->tb_flags |= IMM_FLAG;
-    dc->clear_imm = 0;
-}
-
 static inline void compute_ldst_addr(DisasContext *dc, bool ea, TCGv t)
 {
     /* Should be set to true if r1 is used by loadstores.  */
@@ -1561,7 +1562,6 @@ static struct decoder_info {
 } decinfo[] = {
     {DEC_LD, dec_load},
     {DEC_ST, dec_store},
-    {DEC_IMM, dec_imm},
     {DEC_BR, dec_br},
     {DEC_BCC, dec_bcc},
     {DEC_RTS, dec_rts},