File: sfr-1.c

package info (click to toggle)
avr-libc 1%3A1.6.2.cvs20080610-2
  • links: PTS
  • area: main
  • in suites: lenny
  • size: 14,848 kB
  • ctags: 55,619
  • sloc: ansic: 92,267; asm: 6,692; sh: 4,131; makefile: 2,481; python: 976; pascal: 426; perl: 116
file content (176 lines) | stat: -rw-r--r-- 4,808 bytes parent folder | download
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
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
/* Test of _SFR's macroses.  Default usage without any definition.
   $Id: sfr-1.c,v 1.1.2.2 2008/05/02 08:47:36 dmix Exp $	*/

#include <avr/io.h>
#include <stdlib.h>

#define cli()	asm volatile ("cli")
#define sei()	asm volatile ("sei")
#define nop()	asm volatile ("nop")

int main ()
{
    int i;
    volatile unsigned char *p;
    unsigned char c;

#if	defined (__AVR_AT90S8515__)

    i = _SFR_ADDR (SREG);
    if (i != 0x5F) exit (__LINE__);
    i = _SFR_MEM_ADDR (SREG);
    if (i != 0x5F) exit (__LINE__);
    i = _SFR_IO_ADDR (SREG);
    if (i != 0x3F) exit (__LINE__);
    if (!_SFR_IO_REG_P (SREG)) exit (__LINE__);

    i = _SFR_ADDR (WDTCR);
    if (i != 0x41) exit (__LINE__);
    i = _SFR_MEM_ADDR (WDTCR);
    if (i != 0x41) exit (__LINE__);
    i = _SFR_IO_ADDR (WDTCR);
    if (i != 0x21) exit (__LINE__);
    if (!_SFR_IO_REG_P (WDTCR)) exit (__LINE__);

    i = _SFR_ADDR (EEARH);
    if (i != 0x3F) exit (__LINE__);
    i = _SFR_MEM_ADDR (EEARH);
    if (i != 0x3F) exit (__LINE__);
    i = _SFR_IO_ADDR (EEARH);
    if (i != 0x1F) exit (__LINE__);
    if (!_SFR_IO_REG_P (EEARH)) exit (__LINE__);

    i = _SFR_ADDR (ACSR);
    if (i != 0x28) exit (__LINE__);
    i = _SFR_MEM_ADDR (ACSR);
    if (i != 0x28) exit (__LINE__);
    i = _SFR_IO_ADDR (ACSR);
    if (i != 0x08) exit (__LINE__);
    if (!_SFR_IO_REG_P (ACSR)) exit (__LINE__);

#elif	defined (__AVR_ATmega8__)

    i = _SFR_ADDR (SREG);
    if (i != 0x5F) exit (__LINE__);
    i = _SFR_MEM_ADDR (SREG);
    if (i != 0x5F) exit (__LINE__);
    i = _SFR_IO_ADDR (SREG);
    if (i != 0x3F) exit (__LINE__);
    if (!_SFR_IO_REG_P (SREG)) exit (__LINE__);

    i = _SFR_ADDR (UCSRC);
    if (i != 0x40) exit (__LINE__);
    i = _SFR_MEM_ADDR (UCSRC);
    if (i != 0x40) exit (__LINE__);
    i = _SFR_IO_ADDR (UCSRC);
    if (i != 0x20) exit (__LINE__);
    if (!_SFR_IO_REG_P (UCSRC)) exit (__LINE__);

    i = _SFR_ADDR (EEARH);
    if (i != 0x3F) exit (__LINE__);
    i = _SFR_MEM_ADDR (EEARH);
    if (i != 0x3F) exit (__LINE__);
    i = _SFR_IO_ADDR (EEARH);
    if (i != 0x1F) exit (__LINE__);
    if (!_SFR_IO_REG_P (EEARH)) exit (__LINE__);

    i = _SFR_ADDR (TWBR);
    if (i != 0x20) exit (__LINE__);
    i = _SFR_MEM_ADDR (TWBR);
    if (i != 0x20) exit (__LINE__);
    i = _SFR_IO_ADDR (TWBR);
    if (i != 0x00) exit (__LINE__);
    if (!_SFR_IO_REG_P (TWBR)) exit (__LINE__);

#elif	defined (__AVR_ATmega128__)

    i = _SFR_ADDR (UCSR1C);
    if (i != 0x9D) exit (__LINE__);
    i = _SFR_MEM_ADDR (UCSR1C);
    if (i != 0x9D) exit (__LINE__);
    if (_SFR_IO_REG_P (UCSR1C)) exit (__LINE__);

    i = _SFR_ADDR (DDRF);
    if (i != 0x61) exit (__LINE__);
    i = _SFR_MEM_ADDR (DDRF);
    if (i != 0x61) exit (__LINE__);
    if (_SFR_IO_REG_P (DDRF)) exit (__LINE__);

    i = _SFR_ADDR (SREG);
    if (i != 0x5F) exit (__LINE__);
    i = _SFR_MEM_ADDR (SREG);
    if (i != 0x5F) exit (__LINE__);
    i = _SFR_IO_ADDR (SREG);
    if (i != 0x3F) exit (__LINE__);
    if (!_SFR_IO_REG_P (SREG)) exit (__LINE__);

    i = _SFR_ADDR (SFIOR);
    if (i != 0x40) exit (__LINE__);
    i = _SFR_MEM_ADDR (SFIOR);
    if (i != 0x40) exit (__LINE__);
    i = _SFR_IO_ADDR (SFIOR);
    if (i != 0x20) exit (__LINE__);
    if (!_SFR_IO_REG_P (SFIOR)) exit (__LINE__);

    i = _SFR_ADDR (EEARH);
    if (i != 0x3F) exit (__LINE__);
    i = _SFR_MEM_ADDR (EEARH);
    if (i != 0x3F) exit (__LINE__);
    i = _SFR_IO_ADDR (EEARH);
    if (i != 0x1F) exit (__LINE__);
    if (!_SFR_IO_REG_P (EEARH)) exit (__LINE__);

    i = _SFR_ADDR (PINF);
    if (i != 0x20) exit (__LINE__);
    i = _SFR_MEM_ADDR (PINF);
    if (i != 0x20) exit (__LINE__);
    i = _SFR_IO_ADDR (PINF);
    if (i != 0x00) exit (__LINE__);
    if (!_SFR_IO_REG_P (PINF)) exit (__LINE__);

#else
    (void)i;
#endif

    /* SREG: mem addr is 0x5F (avr2..avr5)	*/

    cli ();
    if (SREG & (1 << SREG_I)) exit (__LINE__);
    sei ();
    if (!(SREG & (1 << SREG_I))) exit (__LINE__);

    p = (void *)_SFR_ADDR (SREG);
    cli ();
    if (*p & (1 << SREG_I)) exit (__LINE__);
    sei ();
    if (!(*p & (1 << SREG_I))) exit (__LINE__);

    p = (void *)_SFR_MEM_ADDR (SREG);
    cli ();
    if (*p & (1 << SREG_I)) exit (__LINE__);
    sei ();
    if (!(*p & (1 << SREG_I))) exit (__LINE__);

    cli ();
    asm volatile ("in %0,%1" : "=r" (c) : "I" (_SFR_IO_ADDR (SREG)));
    if (c & (1 << SREG_I)) exit (__LINE__);
    sei ();
    asm volatile ("in %0,%1" : "=r" (c) : "I" (_SFR_IO_ADDR (SREG)));
    if (!(c & (1 << SREG_I))) exit (__LINE__);

/* TODO: it is needed to update simulavr: do not ask PINx value, if DDRx
   is set.	*/
#if 0
    /* PORTB: mem addr is small	*/
    DDRB = 0xFF;

    PORTB = 1;
    nop ();
    if ((PINB & 3) != 1) exit (__LINE__);
    PORTB = 2;
    nop ();
    if ((PINB & 3) != 2) exit (__LINE__);
#endif

    return 0;
}