X-Git-Url: https://git.ucc.asn.au/?a=blobdiff_plain;f=ROM2%2Fcoinmech.h;h=41f18abcb8558f5695949058047ae72704c9fdd4;hb=c99662693a4d79f65d406473647debbd33ec521e;hp=8e8ad243541b746749a673afe4f1842f8d34de3b;hpb=11baa477da66fe8b2899dd50bd71d11615ff050e;p=uccvend-snackrom.git

diff --git a/ROM2/coinmech.h b/ROM2/coinmech.h
index 8e8ad24..41f18ab 100644
--- a/ROM2/coinmech.h
+++ b/ROM2/coinmech.h
@@ -3,7 +3,7 @@
 
 #include "vend.h"
 
-extern u16 coin_value;
+extern volatile u16 coin_value;
 
 void coin_eat();
 void coin_cost(u16 cost); /* specify the cost of an item. */