projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| da7c5cc6 | 1 | /* |
| 0880b18e | 2 | * Copyright (c) 1982, 1986 Regents of the University of California. |
| da7c5cc6 KM |
3 | * All rights reserved. The Berkeley software License Agreement |
| 4 | * specifies the terms and conditions for redistribution. | |
| 5 | * | |
| 231fd545 | 6 | * @(#)clock.h 7.2 (Berkeley) %G% |
| da7c5cc6 | 7 | */ |
| dc9546ae BJ |
8 | |
| 9 | /* | |
| 10 | * VAX clock registers | |
| 11 | */ | |
| 12 | ||
| dd259ba3 BJ |
13 | #define ICCS_RUN 0x00000001 |
| 14 | #define ICCS_TRANS 0x00000010 | |
| 15 | #define ICCS_SS 0x00000020 | |
| 16 | #define ICCS_IE 0x00000040 | |
| 17 | #define ICCS_INT 0x00000080 | |
| dc9546ae BJ |
18 | #define ICCS_ERR 0x80000000 |
| 19 | ||
| 93359143 BJ |
20 | #define SECDAY ((unsigned)(24*60*60)) /* seconds per day */ |
| 21 | #define SECYR ((unsigned)(365*SECDAY)) /* per common year */ | |
| 22 | /* | |
| 23 | * TODRZERO is the what the TODR should contain when the ``year'' begins. | |
| 24 | * The TODR should always contain a number between 0 and SECYR+SECDAY. | |
| 25 | */ | |
| 26 | #define TODRZERO ((unsigned)(1<<28)) | |
| 27 | ||
| 28 | #define YRREF 1970 | |
| 768f552e | 29 | #define LEAPYEAR(year) ((year)%4==0) /* good till time becomes negative */ |
| 93359143 BJ |
30 | |
| 31 | /* | |
| d21d4302 | 32 | * Has the time-of-day clock wrapped around? |
| 93359143 | 33 | */ |
| 93359143 | 34 | #define clkwrap() (((unsigned)mfpr(TODR) - TODRZERO)/100 > SECYR+SECDAY) |
| 546011e3 BJ |
35 | |
| 36 | /* | |
| 17e0f483 BJ |
37 | * Software clock is software interrupt level 8, |
| 38 | * implemented as mtpr(SIRR, 0x8) in asm.sed. | |
| 546011e3 | 39 | */ |