diff --git a/m68kcpu.h b/m68kcpu.h
index a38f914..ee8b2a5 100644
--- a/m68kcpu.h
+++ b/m68kcpu.h
@@ -1978,2 +1978,6 @@ static inline void m68ki_exception_1010(void)
 	uint sr;
+
+	/* Macintosh Toolbox calls use A-line opcodes. Let the host handle them. */
+	if (m68ki_illg_callback(REG_IR))
+		return;
 #if M68K_LOG_1010_1111 == M68K_OPT_ON