1#include <stdio.h>
2#include <stdlib.h>
3#include <unistd.h>
4
5static inline int mystrlen(char *s) {
6 int i = 0;
7 while (s[i])
8 i++;
9 return i;
10}
11
12void pass(void) {
13 char s[] = "passed.\n";
14 write (1, s, sizeof (s) - 1);
15 exit (0);
16}
17
18void _fail(char *reason) {
19 char s[] = "\nfailed: ";
20 int len = mystrlen(reason);
21 write (1, s, sizeof (s) - 1);
22 write (1, reason, len);
23 write (1, "\n", 1);
24
25}
26
27void *memset (void *s, int c, size_t n) {
28 char *p = s;
29 int i;
30 for (i = 0; i < n; i++)
31 p[i] = c;
32 return p;
33}
34
35void exit (int status) {
36 register unsigned int callno asm ("r9") = 1;
37
38 asm volatile ("break 13\n"
39 :
40 : "r" (callno)
41 : "memory" );
42 while(1)
43 ;
44}
45
46ssize_t write (int fd, const void *buf, size_t count) {
47 register unsigned int callno asm ("r9") = 4;
48 register unsigned int r10 asm ("r10") = fd;
49 register const void *r11 asm ("r11") = buf;
50 register size_t r12 asm ("r12") = count;
51 register unsigned int r asm ("r10");
52
53 asm volatile ("break 13\n"
54 : "=r" (r)
55 : "r" (callno), "0" (r10), "r" (r11), "r" (r12)
56 : "memory");
57
58 return r;
59}
60