1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
|
#include "rockmacros.h"
#include <stdio.h>
#include "defs.h"
#include "mem.h"
#include "rtc-gb.h"
#include "rc.h"
struct rtc rtc IBSS_ATTR;
static int syncrtc = 1;
rcvar_t rtc_exports[] =
{
RCV_BOOL("syncrtc", &syncrtc),
RCV_END
};
void rtc_latch(byte b)
{
if ((rtc.latch ^ b) & b & 1)
{
rtc.regs[0] = rtc.s;
rtc.regs[1] = rtc.m;
rtc.regs[2] = rtc.h;
rtc.regs[3] = rtc.d;
rtc.regs[4] = (rtc.d>>9) | (rtc.stop<<6) | (rtc.carry<<7);
rtc.regs[5] = 0xff;
rtc.regs[6] = 0xff;
rtc.regs[7] = 0xff;
}
rtc.latch = b;
}
void rtc_write(byte b)
{
/* printf("write %02X: %02X (%d)\n", rtc.sel, b, b); */
if (!(rtc.sel & 8)) return;
switch (rtc.sel & 7)
{
case 0:
rtc.s = rtc.regs[0] = b;
while (rtc.s >= 60) rtc.s -= 60;
break;
case 1:
rtc.m = rtc.regs[1] = b;
while (rtc.m >= 60) rtc.m -= 60;
break;
case 2:
rtc.h = rtc.regs[2] = b;
while (rtc.h >= 24) rtc.h -= 24;
break;
case 3:
rtc.regs[3] = b;
rtc.d = (rtc.d & 0x100) | b;
break;
case 4:
rtc.regs[4] = b;
rtc.d = (rtc.d & 0xff) | ((b&1)<<9);
rtc.stop = (b>>6)&1;
rtc.carry = (b>>7)&1;
break;
}
}
void rtc_tick()
{
if (rtc.stop) return;
if (++rtc.t == 60)
{
if (++rtc.s == 60)
{
if (++rtc.m == 60)
{
if (++rtc.h == 24)
{
if (++rtc.d == 365)
{
rtc.d = 0;
rtc.carry = 1;
}
rtc.h = 0;
}
rtc.m = 0;
}
rtc.s = 0;
}
rtc.t = 0;
}
}
void rtc_save_internal(int fd)
{
(void)fd; // stop compiler complaining
// TODO
// fprintf(f, "%d %d %d %02d %02d %02d %02d\n%d\n",
// rtc.carry, rtc.stop, rtc.d, rtc.h, rtc.m, rtc.s, rtc.t,
// time(0));
}
void rtc_load_internal(int fd)
{
//int rt = 0;
(void)fd; // stop compiler complaining
// TODO
/* fscanf(
f, "%d %d %d %02d %02d %02d %02d\n%d\n",
&rtc.carry, &rtc.stop, &rtc.d,
&rtc.h, &rtc.m, &rtc.s, &rtc.t, &rt);
while (rtc.t >= 60) rtc.t -= 60;
while (rtc.s >= 60) rtc.s -= 60;
while (rtc.m >= 60) rtc.m -= 60;
while (rtc.h >= 24) rtc.h -= 24;
while (rtc.d >= 365) rtc.d -= 365;
rtc.stop &= 1;
rtc.carry &= 1;
if (rt) rt = (time(0) - rt) * 60;
if (syncrtc) while (rt-- > 0) rtc_tick(); */
}
|
