typedef struct Hwrpb	Hwrpb;typedef struct Hwcpu	Hwcpu;typedef struct Hwcrb	Hwcrb;typedef struct Hwdsr	Hwdsr;typedef struct Procdesc	Procdesc;typedef struct Memdsc	Memdsc;typedef struct Memclust	Memclust;typedef struct PCB		PCB; struct Hwrpb{	uvlong	phys;	uvlong	sign;	uvlong	rev;	uvlong	size;	uvlong	cpu0;	uvlong	by2pg;	uvlong	pabits;	uvlong	maxasn;	char		ssn[16];	uvlong	systype;	uvlong	sysvar;	uvlong	sysrev;	uvlong	ifreq;	uvlong	cfreq;	uvlong	vptb;	uvlong	resv;	uvlong	tbhint;	uvlong	ncpu;	uvlong	cpulen;	uvlong	cpuoff;	uvlong	nctb;	uvlong	ctblen;	uvlong	ctboff;	uvlong	crboff;	uvlong	memoff;	uvlong	confoff;	uvlong	fruoff;	uvlong	termsaveva;	uvlong	termsavex;	uvlong	termrestva;	uvlong	termrestx;	uvlong	termresetva;	uvlong	termresetx;	uvlong	sysresv;	uvlong	hardresv;	uvlong	csum;	uvlong	rxrdymsk;	uvlong	txrdymsk;	uvlong	dsroff;		/* rev 6 or higher */}; extern Hwrpb* hwrpb; struct Hwcpu{	uvlong	hwpcb[16];	uvlong	state;	uvlong	palmainlen;	uvlong	palscratchlen;	uvlong	palmainpa;	uvlong	palscratchpa;	uvlong	palrev;	uvlong	cputype;	uvlong	cpuvar;	uvlong	cpurev;	uvlong	serial[2];	/* more crap ... */}; struct Hwdsr{	vlong	smm;	uvlong	lurtoff;	uvlong	sysnameoff;}; struct Hwcrb{	uvlong	dispatchva;	uvlong	dispatchpa;	uvlong	fixupva;	uvlong	fixuppa;	/* more, uninteresting crud */}; struct Procdesc{	uvlong	bollocks;	uvlong	addr;}; struct Memclust{	uvlong	pfn;	uvlong	npages;	uvlong	ntest;	uvlong	vabitm;	uvlong	pabitm;	uvlong	csumbitm;	uvlong	usage;}; struct Memdsc{	uvlong	csum;	uvlong	opt;	uvlong	nclust;	Memclust	clust[1];}; enum{	PRINTSIZE =	256,	MB =		(1024*1024),}; #define L_MAGIC		((((4*23)+0)*23)+7) typedef struct Exec Exec;struct	Exec{	uchar	magic[4];		/* magic number */	uchar	text[4];	 	/* size of text segment */	uchar	data[4];	 	/* size of initialized data */	uchar	bss[4];	  		/* size of uninitialized data */	uchar	syms[4];	 	/* size of symbol table */	uchar	entry[4];	 	/* entry point */	uchar	spsz[4];		/* size of sp/pc offset table */	uchar	pcsz[4];		/* size of pc/line number table */}; enum {	Eaddrlen	= 6,	ETHERMINTU	= 60,		/* minimum transmit size */	ETHERMAXTU	= 1514,		/* maximum transmit size */	ETHERHDRSIZE	= 14,		/* size of an ethernet header */ 	MaxEther	= 2,}; typedef struct {	uchar	d[Eaddrlen];	uchar	s[Eaddrlen];	uchar	type[2];	uchar	data[1500];	uchar	crc[4];} Etherpkt; /* *	Process Control Block, used by OSF/1 PALcode when we switch to it */struct PCB {	uvlong	ksp;	uvlong	usp;	uvlong	ptbr;	ulong	asn;	ulong	pcc;	uvlong	unique;	ulong	fen;	ulong	dummy;	uvlong	rsrv1;	uvlong	rsrv2;};  #include	"conf.h" extern Bootconf	conf;