X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?p=fceu.git;a=blobdiff_plain;f=boards%2FSA-9602B.c;fp=boards%2FSA-9602B.c;h=c39fdacc242b956c1ba4fe7247382103b136ac08;hp=0000000000000000000000000000000000000000;hb=43725da7349c85fa13e828fdbf20cc7ac8d298d6;hpb=386f5371eb984fb9c2860c83e740890a75cd45c1 diff --git a/boards/SA-9602B.c b/boards/SA-9602B.c new file mode 100644 index 0000000..c39fdac --- /dev/null +++ b/boards/SA-9602B.c @@ -0,0 +1,67 @@ +/* FCE Ultra - NES/Famicom Emulator + * + * Copyright notice for this file: + * Copyright (C) 2012 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" +#include "mmc3.h" + +static void SA9602BPW(uint32 A, uint8 V) +{ + setprg8r(EXPREGS[1],A,V&0x3F); + if(MMC3_cmd&0x40) + setprg8r(0,0x8000,~(1)); + else + setprg8r(0,0xc000,~(1)); + setprg8r(0,0xe000,~(0)); +} + +static DECLFW(SA9602BWrite) +{ + switch(A & 0xe001) + { + case 0x8000: EXPREGS[0] = V; break; + case 0x8001: + if((EXPREGS[0] & 7) < 6) + { + EXPREGS[1] = V >> 6; + FixMMC3PRG(MMC3_cmd); + } + break; + } + MMC3_CMDWrite(A, V); +} + +static void SA9602BPower(void) +{ + EXPREGS[0]=EXPREGS[1]=0; + GenMMC3Power(); + SetReadHandler(0x8000,0xFFFF,CartBR); + SetWriteHandler(0x8000,0xBFFF,SA9602BWrite); +} + +void SA9602B_Init(CartInfo *info) +{ + GenMMC3_Init(info, 512, 0, 0, 0); + pwrap=SA9602BPW; + mmc3opts|=2; + info->SaveGame[0]=UNIFchrrama; + info->SaveGameLen[0]=32 * 1024; + info->Power=SA9602BPower; + AddExState(EXPREGS, 2, 0, "EXPR"); +}