1*8987Sroot /* clock.h 4.8 82/10/31 */ 251Sbill 351Sbill /* 451Sbill * VAX clock registers 551Sbill */ 651Sbill 72633Swnj #define ICCS_RUN 0x00000001 82633Swnj #define ICCS_TRANS 0x00000010 92633Swnj #define ICCS_SS 0x00000020 102633Swnj #define ICCS_IE 0x00000040 112633Swnj #define ICCS_INT 0x00000080 1251Sbill #define ICCS_ERR 0x80000000 1351Sbill 14880Sbill #define SECDAY ((unsigned)(24*60*60)) /* seconds per day */ 15880Sbill #define SECYR ((unsigned)(365*SECDAY)) /* per common year */ 16880Sbill /* 17880Sbill * TODRZERO is the what the TODR should contain when the ``year'' begins. 18880Sbill * The TODR should always contain a number between 0 and SECYR+SECDAY. 19880Sbill */ 20880Sbill #define TODRZERO ((unsigned)(1<<28)) 2151Sbill 22880Sbill #define YRREF 1970 232307Swnj #define LEAPYEAR(year) ((year)%4==0) /* good till time becomes negative */ 24880Sbill 25880Sbill /* 26*8987Sroot * Has the time-of-day clock wrapped around? 27880Sbill */ 28880Sbill #define clkwrap() (((unsigned)mfpr(TODR) - TODRZERO)/100 > SECYR+SECDAY) 292447Swnj 302447Swnj /* 318050Sroot * Software clock is software interrupt level 8, 328050Sroot * implemented as mtpr(SIRR, 0x8) in asm.sed. 332447Swnj */ 34