target/hppa: fix do_stdby_e()

stdby,e,m was writing data from the wrong half of the register
into memory for cases 0-3.

Fixes: 25460fc5a71 ("target/hppa: Implement STDBY")
Signed-off-by: Sven Schnelle <svens@stackframe.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240319161921.487080-7-svens@stackframe.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

diff --git a/target/hppa/op_helper.c b/target/hppa/op_helper.c
index 480fe80844d93b533af21fbd7625f02ccc5881bf..6cf49f33b7c3d22686d4ca0f0ae03e0a3fe72a9f 100644 (file)
--- a/target/hppa/op_helper.c
+++ b/target/hppa/op_helper.c
@@ -281,17 +281,17 @@ static void do_stdby_e(CPUHPPAState *env, target_ulong addr, uint64_t val,
     case 3:
         /* The 3 byte store must appear atomic.  */
         if (parallel) {
-            atomic_store_mask32(env, addr - 3, val, 0xffffff00u, ra);
+            atomic_store_mask32(env, addr - 3, val >> 32, 0xffffff00u, ra);
         } else {
-            cpu_stw_data_ra(env, addr - 3, val >> 16, ra);
-            cpu_stb_data_ra(env, addr - 1, val >> 8, ra);
+            cpu_stw_data_ra(env, addr - 3, val >> 48, ra);
+            cpu_stb_data_ra(env, addr - 1, val >> 40, ra);
         }
         break;
     case 2:
-        cpu_stw_data_ra(env, addr - 2, val >> 16, ra);
+        cpu_stw_data_ra(env, addr - 2, val >> 48, ra);
         break;
     case 1:
-        cpu_stb_data_ra(env, addr - 1, val >> 24, ra);
+        cpu_stb_data_ra(env, addr - 1, val >> 56, ra);
         break;
     default:
         /* Nothing is stored, but protection is checked and the