--- a/68kinst.h	Sat Oct 11 21:42:33 2014 -0700
+++ b/68kinst.h	Sat Oct 11 22:18:49 2014 -0700
@@ -298,12 +298,15 @@
 	VECTOR_TRAP_15
 } m68k_vector;
 
+typedef int (*format_label_fun)(char * dst, uint32_t address, void * data);
+
 uint16_t * m68k_decode(uint16_t * istream, m68kinst * dst, uint32_t address);
 uint32_t m68k_branch_target(m68kinst * inst, uint32_t *dregs, uint32_t *aregs);
 uint8_t m68k_is_branch(m68kinst * inst);
 uint8_t m68k_is_noncall_branch(m68kinst * inst);
 int m68k_disasm(m68kinst * decoded, char * dst);
-int m68k_disasm_labels(m68kinst * decoded, char * dst);
+int m68k_disasm_labels(m68kinst * decoded, char * dst, format_label_fun label_fun, void * data);
+int m68k_default_label_fun(char * dst, uint32_t address, void * data);
 
 #endif