[fceu.git] / mappers / 86.c

/* FCE Ultra - NES/Famicom Emulator
 *
 * Copyright notice for this file:
 *  Copyright (C) 2002 Xodnizel
 *
 * 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 "mapinc.h"

DECLFW(Mapper86_write)
{
 if(A>=0x6000 && A<=0x6fFF)
 {
  VROM_BANK8((V&3)|((V>>4)&4));
  ROM_BANK32((V>>4)&3);
 }
 //else
 //if(A!=0x6000)
 // printf("$%04x:$%02x\n",A,V);
}
void Mapper86_init(void)
{
 SetWriteHandler(0x6000,0x6fff,Mapper86_write);
 SetWriteHandler(0x4020,0xffff,Mapper86_write);
}
Commit	Line	Data
c62d2810	1	/* FCE Ultra - NES/Famicom Emulator
	2	*
	3	* Copyright notice for this file:
d97315ac	4	* Copyright (C) 2002 Xodnizel
c62d2810	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License as published by
	8	* the Free Software Foundation; either version 2 of the License, or
	9	* (at your option) any later version.
	10	*
	11	* This program is distributed in the hope that it will be useful,
	12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	* GNU General Public License for more details.
	15	*
	16	* You should have received a copy of the GNU General Public License
	17	* along with this program; if not, write to the Free Software
386f5371	18	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
c62d2810	19	*/
	20
	21	#include "mapinc.h"
	22
	23	DECLFW(Mapper86_write)
	24	{
d97315ac	25	if(A>=0x6000 && A<=0x6fFF)
	26	{
	27	VROM_BANK8((V&3)\|((V>>4)&4));
	28	ROM_BANK32((V>>4)&3);
	29	}
	30	//else
	31	//if(A!=0x6000)
	32	// printf("$%04x:$%02x\n",A,V);
c62d2810	33	}
c62d2810	34	void Mapper86_init(void)
c62d2810	35	{
d97315ac	36	SetWriteHandler(0x6000,0x6fff,Mapper86_write);
d97315ac	37	SetWriteHandler(0x4020,0xffff,Mapper86_write);
c62d2810	38	}