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  1. /* Copyright (C) 1995 DJ Delorie, see COPYING.DJ for details */
  2. #include <string.h>
  3.  
  4. size_t strlen(const char *str)
  5. {
  6. int d0;
  7. register int __res;
  8. __asm__ __volatile__(
  9.         "repne\n\t"
  10.         "scasb\n\t"
  11.         "notl %0\n\t"
  12.         "decl %0"
  13.         :"=c" (__res), "=&D" (d0) :"1" (str),"a" (0), "0" (0xffffffff));
  14. return __res;
  15. }
  16.