[PATCH v2 3/7] target/hppa: Handle unit conditions for wide mode

[Richard Henderson]

From: Sven Schnelle <svens@stackframe.org>

Wide mode provides two more conditions, add them.

Fixes: 59963d8fdf42 ("target/hppa: Pass d to do_unit_cond")
Signed-off-by: Sven Schnelle <svens@stackframe.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240321184228.611897-1-svens@stackframe.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 target/hppa/translate.c | 25 +++++++++++++++++++++++--
 1 file changed, 23 insertions(+), 2 deletions(-)

diff --git a/target/hppa/translate.c b/target/hppa/translate.c
index f875d76a23..2cb91956da 100644
--- a/target/hppa/translate.c
+++ b/target/hppa/translate.c
@@ -967,11 +967,22 @@ static DisasCond do_unit_cond(unsigned cf, bool d, 
TCGv_i64 res,
 
     switch (cf >> 1) {
     case 0: /* never / TR */
-    case 1: /* undefined */
-    case 5: /* undefined */
         cond = cond_make_f();
         break;
 
+    case 1: /* SBW / NBW */
+        if (d) {
+            tmp = tcg_temp_new_i64();
+            tcg_gen_subi_i64(tmp, res, d_repl * 0x00000001u);
+            tcg_gen_andc_i64(tmp, tmp, res);
+            tcg_gen_andi_i64(tmp, tmp, d_repl * 0x80000000u);
+            cond = cond_make_0(TCG_COND_NE, tmp);
+        } else {
+            /* undefined */
+            cond = cond_make_f();
+        }
+        break;
+
     case 2: /* SBZ / NBZ */
         /* See hasless(v,1) from
          * https://graphics.stanford.edu/~seander/bithacks.html#ZeroInWord
@@ -996,6 +1007,16 @@ static DisasCond do_unit_cond(unsigned cf, bool d, 
TCGv_i64 res,
         cond = cond_make_0(TCG_COND_NE, cb);
         break;
 
+    case 5: /* SWC / NWC */
+        if (d) {
+            tcg_gen_andi_i64(cb, cb, d_repl * 0x80000000u);
+            cond = cond_make_0(TCG_COND_NE, cb);
+        } else {
+            /* undefined */
+            cond = cond_make_f();
+        }
+        break;
+
     case 6: /* SBC / NBC */
         tcg_gen_andi_i64(cb, cb, d_repl * 0x80808080u);
         cond = cond_make_0(TCG_COND_NE, cb);
-- 
2.34.1