Commit | Line | Data |
---|---|---|
5dc49a50 C |
1 | /* clock.h 4.8 82/10/31 */ |
2 | ||
3 | /* | |
4 | * VAX clock registers | |
5 | */ | |
6 | ||
7 | #define ICCS_RUN 0x00000001 | |
8 | #define ICCS_TRANS 0x00000010 | |
9 | #define ICCS_SS 0x00000020 | |
10 | #define ICCS_IE 0x00000040 | |
11 | #define ICCS_INT 0x00000080 | |
12 | #define ICCS_ERR 0x80000000 | |
13 | ||
14 | #define SECDAY ((unsigned)(24*60*60)) /* seconds per day */ | |
15 | #define SECYR ((unsigned)(365*SECDAY)) /* per common year */ | |
16 | /* | |
17 | * TODRZERO is the what the TODR should contain when the ``year'' begins. | |
18 | * The TODR should always contain a number between 0 and SECYR+SECDAY. | |
19 | */ | |
20 | #define TODRZERO ((unsigned)(1<<28)) | |
21 | ||
22 | #define YRREF 1970 | |
23 | #define LEAPYEAR(year) ((year)%4==0) /* good till time becomes negative */ | |
24 | ||
25 | /* | |
26 | * Has the time-of-day clock wrapped around? | |
27 | */ | |
28 | #define clkwrap() (((unsigned)mfpr(TODR) - TODRZERO)/100 > SECYR+SECDAY) | |
29 | ||
30 | /* | |
31 | * Software clock is software interrupt level 8, | |
32 | * implemented as mtpr(SIRR, 0x8) in asm.sed. | |
33 | */ |