target/hppa: Decode d for bb instructions

Manipulate the shift count so that the bit to be tested
is always placed at the MSB.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

diff --git a/target/hppa/insns.decode b/target/hppa/insns.decode
index ad454ad..b185523 100644 (file)
--- a/target/hppa/insns.decode
+++ b/target/hppa/insns.decode
@@ -290,8 +290,8 @@ fmpysub_d       100110 ..... ..... ..... ..... 1 .....  @mpyadd
 # Conditional Branches
 ####
 
-bb_sar          110000 00000 r:5 c:1 10 ........... n:1 .  disp=%assemble_12
-bb_imm          110001 p:5   r:5 c:1 10 ........... n:1 .  disp=%assemble_12
+bb_sar          110000 00000 r:5 c:1 1 d:1 ........... n:1 . disp=%assemble_12
+bb_imm          110001 p:5   r:5 c:1 1 d:1 ........... n:1 . disp=%assemble_12
 
 movb            110010 ..... ..... ... ........... . .  @rrb_cf f=0
 movbi           110011 ..... ..... ... ........... . .  @rib_cf f=0

diff --git a/target/hppa/translate.c b/target/hppa/translate.c
index f2b2933..e326f63 100644 (file)
--- a/target/hppa/translate.c
+++ b/target/hppa/translate.c
@@ -3172,13 +3172,12 @@ static bool trans_bb_sar(DisasContext *ctx, arg_bb_sar *a)
 {
     TCGv_reg tmp, tcg_r;
     DisasCond cond;
-    bool d = false;
 
     nullify_over(ctx);
 
     tmp = tcg_temp_new();
     tcg_r = load_gpr(ctx, a->r);
-    if (cond_need_ext(ctx, d)) {
+    if (cond_need_ext(ctx, a->d)) {
         /* Force shift into [32,63] */
         tcg_gen_ori_reg(tmp, cpu_sar, 32);
         tcg_gen_shl_reg(tmp, tcg_r, tmp);
@@ -3194,14 +3193,13 @@ static bool trans_bb_imm(DisasContext *ctx, arg_bb_imm *a)
 {
     TCGv_reg tmp, tcg_r;
     DisasCond cond;
-    bool d = false;
     int p;
 
     nullify_over(ctx);
 
     tmp = tcg_temp_new();
     tcg_r = load_gpr(ctx, a->r);
-    p = a->p | (cond_need_ext(ctx, d) ? 32 : 0);
+    p = a->p | (cond_need_ext(ctx, a->d) ? 32 : 0);
     tcg_gen_shli_reg(tmp, tcg_r, p);
 
     cond = cond_make_0(a->c ? TCG_COND_GE : TCG_COND_LT, tmp);