#define CHIME_TIME 5 /* number of RTIs to have the chime on (6.6ms each) */
extern volatile u8 chime_count;
+extern volatile u8 unchime_count;
/* outside world interface */
extern inline void chime_start() { chime_count = CHIME_TIME; }
+extern inline void unchime_start() { unchime_count = CHIME_TIME; }
extern inline void chime_for(u8 time) { chime_count = time; }
+extern inline void unchime_for(u8 time) { unchime_count = time; }
void chime(); /* RTI interrupt */