X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?p=fceu.git;a=blobdiff_plain;f=mappers%2F248.c;fp=mappers%2F248.c;h=0000000000000000000000000000000000000000;hp=e2dff8cafb9ded5338ecbe6c1d768ad7bfc75f5d;hb=d97315ac0bca825d2d50a44453bc5652946e2c67;hpb=890e37ba2b8ea1c7593dc05926d7431e3bd00bfb diff --git a/mappers/248.c b/mappers/248.c deleted file mode 100644 index e2dff8c..0000000 --- a/mappers/248.c +++ /dev/null @@ -1,91 +0,0 @@ -/* FCE Ultra - NES/Famicom Emulator - * - * Copyright notice for this file: - * Copyright (C) 2002 Ben Parnell - * - * 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" - -#define cmd mapbyte1[0] -#define lpa mapbyte1[1] -#define prgl mapbyte2 - -static void PRGSynco(void) -{ - if(lpa&0x80) - { - ROM_BANK16(0x8000,lpa&0xF); - } - else - { - ROM_BANK8(0x8000,prgl[0]&0x1F); - ROM_BANK8(0xa000,prgl[1]&0x1F); - } - X6502_Rebase(); -} - -static DECLFW(Mapper248_writelow) -{ - lpa=V; - PRGSynco(); -} - -static DECLFW(Mapper248_write) -{ - switch(A&0xF001) - { - case 0xa000:MIRROR_SET(V&1);break; // Not sure if this is right. Mirroring may be hard wired... - case 0xc000:IRQLatch=V;break; - case 0xc001:IRQCount=IRQLatch;break; - case 0xe000:IRQa=0;X6502_IRQEnd(FCEU_IQEXT);break; - case 0xe001:IRQa=1;break; - case 0x8000:cmd=V;break; - case 0x8001:switch(cmd&7) - { - case 0:VROM_BANK2(0x000,V>>1);break; - case 1:VROM_BANK2(0x800,V>>1);break; - case 2:VROM_BANK1(0x1000,V);break; - case 3:VROM_BANK1(0x1400,V);break; - case 4:VROM_BANK1(0x1800,V);break; - case 5:VROM_BANK1(0x1c00,V);break; - case 6:prgl[0]=V;PRGSynco();break; - case 7:prgl[1]=V;PRGSynco();break; - } - break; - } -} - -static void Mapper248_hb(void) -{ - if(IRQa) - { - IRQCount--; - if(IRQCount<0) - { - X6502_IRQBegin(FCEU_IQEXT); - IRQCount=IRQLatch; - } - } -} - -void Mapper248_init(void) -{ - SetWriteHandler(0x6000,0x6fff,Mapper248_writelow); - SetWriteHandler(0x8000,0xffff,Mapper248_write); - GameHBIRQHook=Mapper248_hb; -} -