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-rw-r--r--target/m68k/cpu.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/target/m68k/cpu.c b/target/m68k/cpu.c
index bfde9b8594..b2d8c8f1de 100644
--- a/target/m68k/cpu.c
+++ b/target/m68k/cpu.c
@@ -589,7 +589,8 @@ static const struct SysemuCPUOps m68k_sysemu_ops = {
 #include "accel/tcg/cpu-ops.h"
 
 static const TCGCPUOps m68k_tcg_ops = {
-    .guest_default_memory_order = TCG_GUEST_DEFAULT_MO,
+    /* MTTCG not yet supported: require strict ordering */
+    .guest_default_memory_order = TCG_MO_ALL,
 
     .initialize = m68k_tcg_init,
     .translate_code = m68k_translate_code,