1 /* Public domain. */ 2 3 #include "byte.h" 4 byte_copyr(to,n,from)5void byte_copyr(to,n,from) 6 register char *to; 7 register unsigned int n; 8 register char *from; 9 { 10 to += n; 11 from += n; 12 for (;;) { 13 if (!n) return; *--to = *--from; --n; 14 if (!n) return; *--to = *--from; --n; 15 if (!n) return; *--to = *--from; --n; 16 if (!n) return; *--to = *--from; --n; 17 } 18 } 19