1 #include "byte.h"

     2 

     3 void byte_copyr(to,n,from)

     4 register char *to;

     5 register unsigned int n;

     6 register char *from;

     7 {

     8   to += n;

     9   from += n;

    10   for (;;) {

    11     if (!n) return; *--to = *--from; --n;

    12     if (!n) return; *--to = *--from; --n;

    13     if (!n) return; *--to = *--from; --n;

    14     if (!n) return; *--to = *--from; --n;

    15   }

    16 }