Return to clock.h CVS log

Up to [Apple XNU] / XNU / osfmk / ppc

Annotation of XNU/osfmk/ppc/clock.h, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
                      3:  *
                      4:  * @APPLE_LICENSE_HEADER_START@
                      5:  * 
                      6:  * The contents of this file constitute Original Code as defined in and
                      7:  * are subject to the Apple Public Source License Version 1.1 (the
                      8:  * "License").  You may not use this file except in compliance with the
                      9:  * License.  Please obtain a copy of the License at
                     10:  * http://www.apple.com/publicsource and read it before using this file.
                     11:  * 
                     12:  * This Original Code and all software distributed under the License are
                     13:  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
                     14:  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
                     15:  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
                     16:  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
                     17:  * License for the specific language governing rights and limitations
                     18:  * under the License.
                     19:  * 
                     20:  * @APPLE_LICENSE_HEADER_END@
                     21:  */
                     22: /*
                     23:  * @OSF_COPYRIGHT@
                     24:  * 
                     25:  */
                     26: 
                     27: #ifndef _PPC_CLOCK_H_
                     28: #define _PPC_CLOCK_H_
                     29: 
                     30: #include <machine/mach_param.h>
                     31: 
                     32: #define CLK_SPEED      0.0000012766    /* time to complete a clock (3 MHz) */
                     33: 
                     34: #if HZ == 120
                     35: #  define CLK_INTERVAL 6528    /* clocks to hit CLK_TCK ticks per sec */
                     36: #elif HZ == 100
                     37: #  define CLK_INTERVAL 7833    /* clocks to hit CLK_TCK ticks per sec */
                     38: #elif HZ == 60
                     39: #  define CLK_INTERVAL 13055   /* clocks to hit CLK_TCK ticks per sec */
                     40: #else
                     41: #error "unknown clock speed"
                     42: #endif
                     43:                        /* 6528 for 119.998 Hz. */
                     44:                         /* 7833 for 100.004 Hz */
                     45:                        /* 13055 for 60.002 Hz. */
                     46: #define CLK_INTH       (CLK_INTERVAL >> 8)
                     47: #define CLK_INTL       (CLK_INTERVAL & 0xff)
                     48: 
                     49: #define        SECDAY  ((unsigned)(24*60*60))
                     50: #define        SECYR   ((unsigned)(365*SECDAY + SECDAY/4))
                     51: 
                     52: #endif /* _PPC_CLOCK_H_ */

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.