?? sys.c
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#include <stdio.h>#include <stdlib.h>#include <unistd.h>static inline int mystrlen(char *s) { int i = 0; while (s[i]) i++; return i;}void pass(void) { char s[] = "passed.\n"; write (1, s, sizeof (s) - 1); exit (0);}void _fail(char *reason) { char s[] = "failed: "; int len = mystrlen(reason); write (1, s, sizeof (s) - 1); write (1, reason, len); write (1, "\n", 1);// exit (1);}void *memset (void *s, int c, size_t n) { char *p = s; int i; for (i = 0; i < n; i++) p[i] = c; return p;}void exit (int status) { asm volatile ("moveq 1, $r9\n" /* NR_exit. */ "break 13\n"); while(1) ;}ssize_t write (int fd, const void *buf, size_t count) { int r; asm volatile ("moveq 4, $r9\n" /* NR_write. */ "break 13\n" : : : "memory"); asm volatile ("move.d $r10, %0\n" : "=r" (r)); return r;}
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