2 * Copyright (c) 1992, 1993, 1996
3 * Berkeley Software Design, Inc. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by Berkeley Software
18 * THIS SOFTWARE IS PROVIDED BY Berkeley Software Design, Inc. ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL Berkeley Software Design, Inc. BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * BSDI int1a.c,v 2.2 1996/04/08 19:32:49 bostic Exp
41 return n%10 + ((n/10)<<4);
45 int1a(regcontext_t *REGS)
52 static long midnight = 0;
58 gettimeofday(&tod, &zone);
61 tv_sec = boot_time.tv_sec;
62 tm = localtime(&tv_sec);
63 midnight = boot_time.tv_sec - (((tm->tm_hour * 60)
68 R_AL = (tod.tv_sec - midnight) / (24 * 60 * 60);
71 tv_sec = boot_time.tv_sec;
72 tm = localtime(&tv_sec);
73 midnight = boot_time.tv_sec - (((tm->tm_hour * 60)
78 tod.tv_sec -= midnight;
79 tod.tv_usec -= boot_time.tv_usec;
81 value = (tod.tv_sec * 182 + tod.tv_usec / (1000000L/182)) / 10;
83 R_DX = value & 0xffff;
86 case 0x01: /* set current clock count */
87 tv_sec = boot_time.tv_sec;
88 tm = localtime(&tv_sec);
89 midnight = boot_time.tv_sec - (((tm->tm_hour * 60)
90 + tm->tm_min) * 60 + tm->tm_sec);
94 gettimeofday(&tod, &zone);
96 tm = localtime(&tv_sec);
97 R_CH = to_BCD(tm->tm_hour);
98 R_CL = to_BCD(tm->tm_min);
99 R_DH = to_BCD(tm->tm_sec);
103 gettimeofday(&tod, &zone);
105 tm = localtime(&tv_sec);
106 R_CH = to_BCD((tm->tm_year + 1900) / 100);
107 R_CL = to_BCD((tm->tm_year + 1900) % 100);
108 R_DH = to_BCD(tm->tm_mon + 1);
109 R_DL = to_BCD(tm->tm_mday);
113 unknown_int2(0x1a, R_AH, REGS);