X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?p=fceu.git;a=blobdiff_plain;f=boards%2F88.c;fp=boards%2F88.c;h=03fbf5bac0a560d5c8305ed835dd75a35202eaa1;hp=0000000000000000000000000000000000000000;hb=e2d0dd92bfad989cce4270fc0ac5a712476c7c50;hpb=971a1d07d2f5b5a6f991ed5712275c04b933734f diff --git a/boards/88.c b/boards/88.c new file mode 100644 index 0000000..03fbf5b --- /dev/null +++ b/boards/88.c @@ -0,0 +1,87 @@ +/* FCE Ultra - NES/Famicom Emulator + * + * Copyright notice for this file: + * Copyright (C) 2005 CaH4e3 + * + * 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 uint8 reg[8]; +static uint8 mirror, cmd, is154; + +static SFORMAT StateRegs[]= +{ + {&cmd, 1, "CMD"}, + {&mirror, 1, "MIRR"}, + {reg, 8, "REGS"}, + {0} +}; + +static void Sync(void) +{ + setchr2(0x0000,reg[0]>>1); + setchr2(0x0800,reg[1]>>1); + setchr1(0x1000,reg[2]|0x40); + setchr1(0x1400,reg[3]|0x40); + setchr1(0x1800,reg[4]|0x40); + setchr1(0x1C00,reg[5]|0x40); + setprg8(0x8000,reg[6]); + setprg8(0xA000,reg[7]); +} + +static void MSync(void) +{ + if(is154)setmirror(MI_0+(mirror&1)); +} + +static DECLFW(M88Write) +{ + switch(A&0x8001) + { + case 0x8000: cmd=V&7; mirror=V>>6; MSync(); break; + case 0x8001: reg[cmd]=V; Sync(); break; + } +} + +static void M88Power(void) +{ + setprg16(0xC000,~0); + SetReadHandler(0x8000,0xFFFF,CartBR); + SetWriteHandler(0x8000,0xFFFF,M88Write); +} + +static void StateRestore(int version) +{ + Sync(); + MSync(); +} + +void Mapper88_Init(CartInfo *info) +{ + is154=0; + info->Power=M88Power; + GameStateRestore=StateRestore; + AddExState(&StateRegs, ~0, 0, 0); +} + +void Mapper154_Init(CartInfo *info) +{ + is154=1; + info->Power=M88Power; + GameStateRestore=StateRestore; + AddExState(&StateRegs, ~0, 0, 0); +}