| time.c (55211) | time.c (64187) |
|---|---|
| 1/*- 2 * Copyright (c) 1998 Michael Smith <msmith@freebsd.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 9 unchanged lines hidden (view full) --- 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * | 1/*- 2 * Copyright (c) 1998 Michael Smith <msmith@freebsd.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 9 unchanged lines hidden (view full) --- 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * |
| 26 * $FreeBSD: head/sys/boot/i386/libi386/time.c 55211 1999-12-29 09:54:46Z msmith $ | 26 * $FreeBSD: head/sys/boot/i386/libi386/time.c 64187 2000-08-03 09:14:02Z jhb $ |
| 27 */ 28 29#include <stand.h> 30#include <btxv86.h> | 27 */ 28 29#include <stand.h> 30#include <btxv86.h> |
| 31#include "bootstrap.h" 32#include "libi386.h" |
|
| 31 32/* 33 * Return the time in seconds since the beginning of the day. 34 * 35 * If we pass midnight, don't wrap back to 0. 36 * 37 * XXX uses undocumented BCD support from libstand. 38 */ 39 40time_t 41time(time_t *t) 42{ 43 static time_t lasttime, now; | 33 34/* 35 * Return the time in seconds since the beginning of the day. 36 * 37 * If we pass midnight, don't wrap back to 0. 38 * 39 * XXX uses undocumented BCD support from libstand. 40 */ 41 42time_t 43time(time_t *t) 44{ 45 static time_t lasttime, now; |
| 44 int hr, min, sec; | 46 int hr, minute, sec; |
| 45 46 v86.ctl = 0; 47 v86.addr = 0x1a; /* int 0x1a, function 2 */ 48 v86.eax = 0x0200; 49 v86int(); 50 51 hr = bcd2bin((v86.ecx & 0xff00) >> 8); /* hour in %ch */ | 47 48 v86.ctl = 0; 49 v86.addr = 0x1a; /* int 0x1a, function 2 */ 50 v86.eax = 0x0200; 51 v86int(); 52 53 hr = bcd2bin((v86.ecx & 0xff00) >> 8); /* hour in %ch */ |
| 52 min = bcd2bin(v86.ecx & 0xff); /* minute in %cl */ | 54 minute = bcd2bin(v86.ecx & 0xff); /* minute in %cl */ |
| 53 sec = bcd2bin((v86.edx & 0xff00) >> 8); /* second in %dh */ 54 | 55 sec = bcd2bin((v86.edx & 0xff00) >> 8); /* second in %dh */ 56 |
| 55 now = hr * 3600 + min * 60 + sec; | 57 now = hr * 3600 + minute * 60 + sec; |
| 56 if (now < lasttime) 57 now += 24 * 3600; 58 lasttime = now; 59 60 if (t != NULL) 61 *t = now; 62 return(now); 63} --- 17 unchanged lines hidden --- | 58 if (now < lasttime) 59 now += 24 * 3600; 60 lasttime = now; 61 62 if (t != NULL) 63 *t = now; 64 return(now); 65} --- 17 unchanged lines hidden --- |