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

Signed-off-by: Sven Schnelle <svens@stackframe.org>
---
 target/hppa/op_helper.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/target/hppa/op_helper.c b/target/hppa/op_helper.c
index 480fe80844..6cf49f33b7 100644
--- 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
-- 
2.43.2

On 3/17/24 12:14, Sven Schnelle wrote:
> stdby,e,m was writing data from the wrong half of the register
> into memory for cases 0-3.
> 
> Signed-off-by: Sven Schnelle<svens@stackframe.org>
> ---
>   target/hppa/op_helper.c | 10 +++++-----
>   1 file changed, 5 insertions(+), 5 deletions(-)

Fixes: 25460fc5a71 ("target/hppa: Implement STDBY")
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>


r~