1*25678Ssam /* clock.h 1.2 86/01/05 */ 224011Ssam 324011Ssam #define SECDAY ((unsigned)(24*60*60)) /* seconds per day */ 424011Ssam #define SECYR ((unsigned)(365*SECDAY)) /* per common year */ 524011Ssam 624011Ssam #define YRREF 1970 724011Ssam #define LEAPYEAR(year) ((year)%4==0) /* good till time becomes negative */ 824011Ssam 924011Ssam /* 1024011Ssam * Software clock is software interrupt level 8 1124011Ssam */ 12*25678Ssam #define setsoftclock() mtpr(SIRR, 0x8) 13