diff --git a/qemu/target/m68k/helper.c b/qemu/target/m68k/helper.c
index 436dfff9..f061cfa7 100644
--- a/qemu/target/m68k/helper.c
+++ b/qemu/target/m68k/helper.c
@@ -47,9 +47,9 @@ void HELPER(cf_movec_to)(CPUM68KState *env, uint32_t reg, uint32_t val)
         break;
     /* TODO: Implement control registers.  */
     default:
-        cpu_abort(CPU(cpu),
-                  "Unimplemented control register write 0x%x = 0x%x\n",
-                  reg, val);
+        qemu_log("Unimplemented control register write 0x%x = 0x%x\n",
+                 reg, val);
+        raise_exception(env, EXCP_UNSUPPORTED);
     }
 }
 
diff --git a/qemu/target/m68k/translate.c b/qemu/target/m68k/translate.c
index e595400f..912f3b88 100644
--- a/qemu/target/m68k/translate.c
+++ b/qemu/target/m68k/translate.c
@@ -4976,7 +4976,8 @@ DISAS_INSN(wdebug)
         return;
     }
     /* TODO: Implement wdebug.  */
-    cpu_abort(CPU(cpu), "WDEBUG not implemented");
+    qemu_log("WDEBUG not implemented\n");
+    gen_exception(s, s->pc - 2, EXCP_UNSUPPORTED);
 }
 #endif