1 #include "byte.h" 2 byte_copyr(to,n,from)3void 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 } 17