OpenCores
URL https://opencores.org/ocsvn/eco32/eco32/trunk

Subversion Repositories eco32

[/] [eco32/] [trunk/] [lcc/] [tst/] [switch.c] - Blame information for rev 4

Details | Compare with Previous | View Log

Line No. Rev Author Line
1 4 hellwig 
main()
2 
{
3 
        int i; char *s;
4 
 
5 
        for (s = "bfnrtvx"; *s; s++)
6 
                printf("%c = 0x%x\n", *s, backslash(*s));
7 
        f();
8 
        g();
9 
        h();
10 
        for (i = 0x1000000; i&0x7000000; i += 0x1000000)
11 
                big(i);
12 
        limit();
13 
        return 0;
14 
}
15 
 
16 
backslash(c)
17 
{
18 
        switch (c) {
19 
        case 'b':
20 
                return '\b';
21 
        case 'f':
22 
                return '\f';
23 
        case 'n':
24 
                return '\n';
25 
        case 'r':
26 
                return '\r';
27 
        case 't':
28 
                return '\t';
29 
        case 'v':
30 
                return '\v';
31 
        }
32 
        return c;
33 
}
34 
 
35 
f() {
36 
        int i, x = 0, y;
37 
 
38 
        printf("f:\n");
39 
        for (i = 0; i <= 20; i++) {
40 
                y = i;
41 
                switch (i) {
42 
                case 1: x = i; break;
43 
                case 2: x = i; break;
44 
                case 7: x = i; break;
45 
                case 8: x = i; break;
46 
                case 9: x = i; break;
47 
                case 16: x = i; break;
48 
                case 17: x = i; break;
49 
                case 18: x = i; break;
50 
                case 19: x = i; break;
51 
                case 20: x = i; break;
52 
                }
53 
                printf("x = %d\n", x);
54 
        }
55 
}
56 
 
57 
g() {
58 
        int i;
59 
 
60 
        printf("g:\n");
61 
        for (i = 1; i <= 10; i++)
62 
                switch (i) {
63 
                case 1: case 2: printf("1 %d\n", i); break;
64 
                case 3: case 4: case 5: printf("2 %d\n", i); break;
65 
                case 6: case 7: case 8: printf("3 %d\n", i);
66 
                default:
67 
                        printf("d %d\n", i); break;
68 
                case 1001: case 1002: case 1003: case 1004:
69 
                        printf("5 %d\n", i); break;
70 
                case 3001: case 3002: case 3003: case 3004:
71 
                        printf("6 %d\n", i); break;
72 
        }
73 
}
74 
 
75 
h()
76 
{
77 
        int i, n=0;
78 
 
79 
        printf("h:\n");
80 
        for (i = 1; i <= 500; i++)
81 
                switch (i) {
82 
                default: n++; continue;
83 
                case 128: printf("i = %d\n", i); break;
84 
                case 16: printf("i = %d\n", i); break;
85 
                case 8: printf("i = %d\n", i); break;
86 
                case 120: printf("i = %d\n", i); break;
87 
                case 280: printf("i = %d\n", i); break;
88 
                case 264: printf("i = %d\n", i); break;
89 
                case 248: printf("i = %d\n", i); break;
90 
                case 272: printf("i = %d\n", i); break;
91 
                case 304: printf("i = %d\n", i); break;
92 
                case 296: printf("i = %d\n", i); break;
93 
                case 288: printf("i = %d\n", i); break;
94 
                case 312: printf("i = %d\n", i); break;
95 
                }
96 
        printf("%d defaults\n", n);
97 
}
98 
 
99 
big(x) unsigned x; {
100 
        switch(x&0x6000000){
101 
        case -1:
102 
        case -2:
103 
        case 0x0000000:
104 
                printf("x = 0x%x\n", x); break;
105 
        case 0x2000000:
106 
                printf("x = 0x%x\n", x); break;
107 
        case 0x4000000:
108 
                printf("x = 0x%x\n", x); break;
109 
        default:
110 
                printf("x = 0x%x (default)\n", x); break;
111 
        }
112 
}
113 
 
114 
#include <limits.h>
115 
 
116 
limit() {
117 
        int i;
118 
 
119 
        for (i = INT_MIN; i <= INT_MIN+5; i++)
120 
                switch (i) {
121 
                case INT_MIN:   printf("0\n"); break;
122 
                case INT_MIN+1: printf("1\n"); break;
123 
                case INT_MIN+2: printf("2\n"); break;
124 
                case INT_MIN+3: printf("3\n"); break;
125 
                case INT_MIN+4: printf("4\n"); break;
126 
                default:        printf("5\n"); break;
127 
                }
128 
        for (i = INT_MAX; i >= INT_MAX-5; i--)
129 
                switch (i) {
130 
                case INT_MAX:   printf("0\n"); break;
131 
                case INT_MAX-1: printf("1\n"); break;
132 
                case INT_MAX-2: printf("2\n"); break;
133 
                case INT_MAX-3: printf("3\n"); break;
134 
                case INT_MAX-4: printf("4\n"); break;
135 
                default:        printf("5\n"); break;
136 
                }
137 
}

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.