#include	"u.h"#include	"mem.h"#include	"dat.h"#include	"fns.h"#include	"lib.h" Bootconf	conf; voidmain(void){	char *dev; 	consinit();	meminit();	mmuinit(); 	dev = getenv("booted_dev");	if (dev == 0)		panic("get dev name");	if (strncmp(dev, "BOOTP", 5) == 0)		bootp(dev);	else		print("boot device %s not supported\n", dev);}