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- /*
- * Copyright (c) 1990 The Regents of the University of California.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that: (1) source code distributions
- * retain the above copyright notice and this paragraph in its entirety, (2)
- * distributions including binary code include the above copyright notice and
- * this paragraph in its entirety in the documentation or other materials
- * provided with the distribution, and (3) all advertising materials mentioning
- * features or use of this software display the following acknowledgement:
- * ``This product includes software developed by the University of California,
- * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
- * the University nor the names of its contributors may be used to endorse
- * or promote products derived from this software without specific prior
- * written permission.
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
- */
-
- #ifndef lint
- static char rcsid[] =
- "@(#) $Header: md-sun4.c,v 1.2 90/09/21 02:20:17 mccanne Exp $ (LBL)";
- #endif
-
- /* The sun includes are arranged too stupidly to help us */
-
- #define ARCH_MASK 0xf0000000
- #define MACH_MASK 0x0f000000
- #define ARCH_MACH_MASK (ARCH_MASK + MACH_MASK)
-
- #define ARCH_SUN4 0x20000000
- #define ARCH_SUN4C 0x50000000
- #define MACH_60 0x01000000 /* Sparcstation 1 */
-
- #define MACH_4_330 (ARCH_SUN4 + 0x03000000)
- #define MACH_4_460 (ARCH_SUN4 + 0x04000000)
-
- #define MACH_260 0x01000000
- #define MACH_110 0x02000000
- #define MACH_330 0x03000000
- #define MACH_460 0x04000000
-
- int
- clock_sigfigs()
- {
- int good = 0;
- long id = gethostid();
-
- /*
- * Apparently, all sun4c's, 4/300's, and 4/400's have the
- * Mostek 48T02 clock chip.
- */
- if ((id & ARCH_MASK) == ARCH_SUN4C)
- ++good;
- else
- switch (id & ARCH_MACH_MASK) {
-
- case MACH_4_330:
- case MACH_4_460:
- ++good;
- break;
- }
- /* On machines with "good" clocks, timestamps to microseconds.
- Default is hundreths of a second. */
-
- if (good)
- return 6;
- else
- return 2;
- }
-