cx                 67 kernel/printf.c   int i, cx, c0, c1, c2, locking;
cx                 75 kernel/printf.c   for(i = 0; (cx = fmt[i] & 0xff) != 0; i++){
cx                 76 kernel/printf.c     if(cx != '%'){
cx                 77 kernel/printf.c       consputc(cx);