#include "memventi.h"  voidunpackiheader(uchar *buf, IHeader *ih){	memcpy(ih->indexscore, buf, Indexscoresize);	buf += Indexscoresize;	ih->type = GET8(buf);	buf += 1;	ih->offset = GET48(buf);	buf += 6;}  voidpackiheader(uchar *buf, IHeader *ih){	memcpy(buf, ih->indexscore, Indexscoresize);	buf += Indexscoresize;	PUT8(buf, ih->type);	buf += 1;	PUT48(buf, ih->offset);	buf += 6;}  voidtoiheader(IHeader *ih, DHeader *dh, uvlong offset){	memcpy(ih->indexscore, dh->score, Indexscoresize);	ih->type = dh->type;	ih->offset = offset;}  char *unpackdheader(uchar *buf, DHeader *dh){	uint magic;	static char errmsg[128]; 	magic = GET32(buf);	if(magic != Headermagic) {		snprintf(errmsg, sizeof errmsg, "invalid data, magic wrong (have 0x%x, want 0x%x)", magic, Headermagic);		return errmsg;	}	buf += 4;	memcpy(dh->score, buf, Scoresize);	buf += Scoresize;	dh->type = GET8(buf);	buf += 1;	dh->size = GET16(buf);	buf += 2;	if(dh->size > Datamax)		return "size too large";	return nil;}  voidpackdheader(uchar *buf, DHeader *dh){	PUT32(buf, Headermagic);	buf += 4;	memcpy(buf, dh->score, Scoresize);	buf += Scoresize;	PUT8(buf, dh->type);	buf += 1;	PUT16(buf, dh->size);	buf += 2;}  uvlonggetuvlong(uchar *data, uint bitoffset, uint bits){	uvlong r;	int bbits;	int boff;	uchar *p; 	r = 0;	p = &data[bitoffset / 8]; 	while(bits > 0) {		boff = bitoffset % 8;		bbits = MIN(bits, 8-boff);		r = (r<<bbits) | ((p[0]>>(8-bbits-boff)) & ((1<<bbits) - 1));		bitoffset += bbits;		bits -= bbits;		p++;	}	return r;}  voidputuvlong(uchar *data, uvlong addr, uint bitoffset, uint bits){	uchar *p;	uchar v;	int boff, bbits; 	p = &data[bitoffset/8];	while(bits > 0) {		boff = bitoffset % 8;		bbits = MIN(bits, 8-boff);		v = p[0];		p[0] = v & ~((1<<(8-boff))-1);		p[0] |= ((addr>>(bits-bbits)) & ~(1<<bbits)) << (8-boff-bbits);		p[0] |= v & ((1<<(8-boff-bbits))-1);		bitoffset += bbits;		bits -= bbits;		p++;	}}