Add a DEMOTE_WORD() macro.

diff --git a/advent.h b/advent.h
index 670d7e9cab3f916a35d5f17d4405294d34fe0ade..cf049f48c9e9ede5f3920317b43a8eaac3e86071 100644 (file)
--- a/advent.h
+++ b/advent.h
@@ -59,6 +59,7 @@
 #define ACTION_WORD(n)  ((n) + 2000)
 #define SPECIAL_WORD(n) ((n) + 3000)
 #define PROMOTE_WORD(n) ((n) + 1000)
+#define DEMOTE_WORD(n)  ((n) - 1000)
 
 enum bugtype {
     SPECIAL_TRAVEL_500_GT_L_GT_300_EXCEEDS_GOTO_LIST,