S390x is always big-endian.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
 target/s390x/tcg/mem_helper.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/target/s390x/tcg/mem_helper.c b/target/s390x/tcg/mem_helper.c
index 24675fc818d..84d901c2008 100644
--- a/target/s390x/tcg/mem_helper.c
+++ b/target/s390x/tcg/mem_helper.c
@@ -2437,7 +2437,7 @@ void HELPER(ex)(CPUS390XState *env, uint32_t ilen, uint64_t r1, uint64_t addr)
         tcg_s390_program_interrupt(env, PGM_SPECIFICATION, GETPC());
     }
 
-    insn = cpu_lduw_code(env, addr);
+    insn = cpu_lduw_be_code(env, addr);
     opc = insn >> 8;
 
     /* Or in the contents of R1[56:63].  */
@@ -2449,10 +2449,10 @@ void HELPER(ex)(CPUS390XState *env, uint32_t ilen, uint64_t r1, uint64_t addr)
     case 2:
         break;
     case 4:
-        insn |= (uint64_t)cpu_lduw_code(env, addr + 2) << 32;
+        insn |= (uint64_t)cpu_lduw_be_code(env, addr + 2) << 32;
         break;
     case 6:
-        insn |= (uint64_t)(uint32_t)cpu_ldl_code(env, addr + 2) << 16;
+        insn |= (uint64_t)(uint32_t)cpu_ldl_be_code(env, addr + 2) << 16;
         break;
     default:
         g_assert_not_reached();
-- 
2.51.0