X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?p=fceu.git;a=blobdiff_plain;f=mappers%2F231.c;fp=mappers%2F231.c;h=9b8d1fcee2032e5a38dcd09687c0d5bc20f89dc2;hp=0000000000000000000000000000000000000000;hb=d97315ac0bca825d2d50a44453bc5652946e2c67;hpb=890e37ba2b8ea1c7593dc05926d7431e3bd00bfb diff --git a/mappers/231.c b/mappers/231.c new file mode 100644 index 0000000..9b8d1fc --- /dev/null +++ b/mappers/231.c @@ -0,0 +1,41 @@ +/* FCE Ultra - NES/Famicom Emulator + * + * Copyright notice for this file: + * Copyright (C) 2003 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include "mapinc.h" + +static DECLFW(Mapper231_write) +{ + if(A&0x20) + ROM_BANK32((A>>1)&0xF); + else + { + ROM_BANK16(0x8000,(A&0x1E)); + ROM_BANK16(0xc000,(A&0x1E)); + } + MIRROR_SET((A>>7)&1); +} + +void Mapper231_init(void) +{ + ROM_BANK16(0x8000,0); + ROM_BANK16(0xc000,0); + SetWriteHandler(0x8000,0xffff,Mapper231_write); +} +