typedef struct Chain Chain;

extern uchar rtab[]; 		/* generated by genrtab.c */

#define MSK(nbits)		((1UL<<(nbits))-1)

enum{
	MaxChLen	= 128,	/* bytes */
};


/* bit chain, can put at the beginning, get at the end */
struct Chain {
	int	b;			/* offset start in bits, (first full) */
	int	e;			/* offset end in bits (first empty) */
	uchar buf[MaxChLen];
};

extern void	getbits(void *p, Chain *ch, int nbits);
extern u32int	hmsbputl(u32int *v);
extern u32int	msbhgetl(u32int *v);
extern void	printchain(Chain *ch);
extern void	putbits(Chain *ch, void *p, int nbits);