/*  * This file is part of the UCB release of Plan 9. It is subject to the license * terms in the LICENSE file found in the top-level directory of this * distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No * part of the UCB release of Plan 9, including this file, may be copied, * modified, propagated, or distributed except according to the terms contained * in the LICENSE file. */ #include <u.h>#include <libc.h>#include "flashfs.h" char*	prog;ulong	sectsize;ulong	nsects;uchar*	sectbuff;int	readonly;ulong	delta;int	eparity; uchar	magic[]	= { MAGIC0, MAGIC1, MAGIC2, FFSVERS }; intputc3(uchar *buff, ulong v){	if(v < (1 << 7)) {		buff[0] = v;		return 1;	} 	if(v < (1 << 13)) {		buff[0] = 0x80 | (v >> 7);		buff[1] = v & ((1 << 7) - 1);		return 2;	} 	if(v < (1 << 21)) {		buff[0] = 0x80 | (v >> 15);		buff[1] = 0x80 | ((v >> 8) & ((1 << 7) - 1));		buff[2] = v;		return 3;	} 	fprint(2, "%s: putc3 fail 0x%lux, called from %#p\n", prog, v, getcallerpc(&buff));	abort();	return -1;} intgetc3(uchar *buff, ulong *p){	int c, d; 	c = buff[0];	if((c & 0x80) == 0) {		*p = c;		return 1;	} 	c &= ~0x80;	d = buff[1];	if((d & 0x80) == 0) {		*p = (c << 7) | d;		return 2;	} 	d &= ~0x80;	*p = (c << 15) | (d << 8) | buff[2];	return 3;} ulongget4(uchar *b){	return	(b[0] <<  0) |		(b[1] <<  8) |		(b[2] << 16) |		(b[3] << 24);} voidput4(uchar *b, ulong v){	b[0] = v >>  0;	b[1] = v >>  8;	b[2] = v >> 16;	b[3] = v >> 24;}