tag	line	file	source code
send_byte	374	net/inet/plip.c	send_byte(dev, length); send_byte(dev, length >> 8);
send_byte	376	net/inet/plip.c	checksum += buf[i], send_byte(dev, buf[i]);
send_byte	377	net/inet/plip.c	send_byte(dev, checksum);