/* PLEASE DO NOT MODIFY THIS FILE. ALL CHANGES WILL BE LOST! LOOK FOR README FOR DETAILS */

/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.

 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.

 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 */

#include "dreamgen.h"

namespace DreamGen {

void DreamGenContext::dirFile() {
	STACK_CHECK;
	al = 34;
	es.byte(di) = al;
	push(es);
	push(di);
	ds = data.word(kTextfile1);
	si = (66*2);
	searchForString();
	_cmp(al, 0);
	if (flags.z())
		goto foundfile;
	di = pop();
	es = pop();
	push(es);
	push(di);
	ds = data.word(kTextfile2);
	si = (66*2);
	searchForString();
	_cmp(al, 0);
	if (flags.z())
		goto foundfile;
	di = pop();
	es = pop();
	push(es);
	push(di);
	ds = data.word(kTextfile3);
	si = (66*2);
	searchForString();
	_cmp(al, 0);
	if (flags.z())
		goto foundfile;
	di = pop();
	es = pop();
	al = 7;
	monMessage();
	return;
foundfile:
	ax = pop();
	ax = pop();
	getKeyAndLogo();
	_cmp(al, 0);
	if (flags.z())
		goto keyok2;
	return;
keyok2:
	push(es);
	push(bx);
	ds = cs;
	si = offset_operand1+1;
	es = cs;
	di = 408+1;
	cx = 12;
	_movsb(cx, true);
	monitorLogo();
	scrollMonitor();
	al = 10;
	monMessage();
	bx = pop();
	es = pop();
directloop2:
	al = es.byte(bx);
	_inc(bx);
	_cmp(al, 34);
	if (flags.z())
		goto endofdir2;
	_cmp(al, '*');
	if (flags.z())
		goto endofdir2;
	_cmp(al, '=');
	if (!flags.z())
		goto directloop2;
	monPrint();
	goto directloop2;
endofdir2:
	scrollMonitor();
}

void DreamGenContext::searchForString() {
	STACK_CHECK;
	dl = es.byte(di);
	cx = di;
restartlook:
	di = cx;
	bx = si;
	dh = 0;
keeplooking:
	_lodsb();
	makeCaps();
	_cmp(al, '*');
	if (flags.z())
		goto notfound;
	_cmp(dl, '=');
	if (!flags.z())
		goto nofindingtopic;
	_cmp(al, 34);
	if (flags.z())
		goto notfound;
nofindingtopic:
	ah = es.byte(di);
	_cmp(al, dl);
	if (!flags.z())
		goto notbracket;
	_inc(dh);
	_cmp(dh, 2);
	if (flags.z())
		goto complete;
notbracket:
	_cmp(al, ah);
	if (!flags.z())
		goto restartlook;
	_inc(di);
	goto keeplooking;
complete:
	es = ds;
	al = 0;
	bx = si;
	return;
notfound:
	al = 1;
}

void DreamGenContext::__start() { 
	static const uint8 src[] = {
		0x00, 0x00, 0x00, 0x00, 0x00, 0x1e, 0x13, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
		//0x0000: .... .... .... ....
		0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 
		//0x0010: .... .... .... ....
		0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
		//0x0020: .... .... .... ....
		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x02, 0x03, 0x00, 0x00, 0x00, 0xff, 0x00, 
		//0x0030: .... .... .... ....
		0xff, 0x00, 0x00, 0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0a, 0x00, 0x0d, 0x00, 0xb6, 
		//0x0040: ...0 .... .... ....
		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
		//0x0050: .... .... .... ....
		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
		//0x0060: .... .... .... ....
		0x00, 0x00, 0x00, 0x00, 0x68, 0x00, 0x26, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
		//0x0070: .... h.&. .... ....
		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
		//0x0080: .... .... .... ....
		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 
		//0x0090: .... .... .... ....
		0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
		//0x00a0: .... .... .... ....
		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
		//0x00b0: .... .... .... ....
		0x00, 0x00, 0x00, 0x20, 0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
		//0x00c0: ...   ... .... ....
		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
		//0x00d0: .... .... .... ....
		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
		//0x00e0: .... .... .... ....
		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
		//0x00f0: .... .... .... ....
		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
		//0x0100: .... .... .... ....
		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
		//0x0110: .... .... .... ....
		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
		//0x0120: .... .... .... ....
		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 
		//0x0130: .... .... .... ....
		0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 
		//0x0140: .... .... .... ....
		0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 
		//0x0150: .... .... .... ....
		0xff, 0x17, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
		//0x0160: .... .... .... ....
		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0x00, 0x00, 0xff, 0x00, 0x44, 0x52, 0x45, 
		//0x0170: .... .... .... .DRE
		0x41, 0x4d, 0x57, 0x45, 0x42, 0x2e, 0x56, 0x39, 0x39, 0x00, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 
		//0x0180: AMWE B.V9 9.       
		0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x00, 0x22, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 
		//0x0190:         . "        
		0x20, 0x20, 0x20, 0x20, 0x20, 0x00, 0x0d, 0x0a, 0x0d, 0x0a, 0x24, 0x10, 0x12, 0x12, 0x11, 0x10, 
		//0x01a0:       ... ..$. ....
		0x10, 0x10, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x02, 0x02, 0x02, 0x02, 0x02, 
		//0x01b0: .... .... .... ....
		0x02, 0x02, 0x02, 0x44, 0x3a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
		//0x01c0: ...D :... .... ....
		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
		//0x01d0: .... .... .... ....
		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, };
	ds.assign(src, src + sizeof(src));
	dreamweb(); 
}

} // End of namespace DreamGen