1 files changed, 13 insertions, 1 deletions
diff --git a/core/kaboom.c b/core/kaboom.c
index d639915a..1686eedc 100644
--- a/core/kaboom.c
+++ b/core/kaboom.c
@@ -4,9 +4,21 @@
 
 #include "core.h"
 
+#if defined(DEBUG) || defined(DEBUG_PORT)
+
+#include <dprintf.h>
+
+__export __noreturn __bad_SEG(const volatile void *p)
+{
+    dprintf("SEG() passed an invalid pointer: %p\n", p);
+    kaboom();
+}
+
+#endif
+
 #undef kaboom
 
-__noreturn _kaboom(void)
+__export __noreturn _kaboom(void)
 {
     extern void kaboom(void);
     call16(kaboom, &zero_regs, NULL);