X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?p=fceu.git;a=blobdiff_plain;f=boards%2Ffamicombox.c;fp=boards%2Ffamicombox.c;h=2bc8a4fc611645ac1a5e720962a5aeb34681f2f3;hp=0000000000000000000000000000000000000000;hb=43725da7349c85fa13e828fdbf20cc7ac8d298d6;hpb=386f5371eb984fb9c2860c83e740890a75cd45c1 diff --git a/boards/famicombox.c b/boards/famicombox.c new file mode 100644 index 0000000..2bc8a4f --- /dev/null +++ b/boards/famicombox.c @@ -0,0 +1,124 @@ +/* FCE Ultra - NES/Famicom Emulator + * + * Copyright notice for this file: + * Copyright (C) 2009 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 regs[8]; +static uint8 *WRAM = NULL; +static uint32 WRAMSIZE; + +static SFORMAT StateRegs[]= +{ + {regs, 8, "REGS"}, + {0} +}; + +static void Sync(void) +{ + setprg2r(0x10,0x0800,0); + setprg2r(0x10,0x1000,1); + setprg2r(0x10,0x1800,2); + setprg8r(0x10,0x6000,1); + setprg16(0x8000,0); + setprg16(0xC000,~0); + setchr8(0); +} + +//static DECLFW(SSSNROMWrite) +//{ +// CartBW(A,V); +//} + +static DECLFW(SSSNROMWrite) +{ + //FCEU_printf("write %04x %02x\n",A,V); + //regs[A&7] = V; +} + +static DECLFR(SSSNROMRead) +{ + //FCEU_printf("read %04x\n",A); + switch(A&7) { + case 0: return regs[0]=0xff; // clear all exceptions + case 2: return 0xc0; // DIP selftest + freeplay + case 3: return 0x00; // 0, 1 - attract + // 2 + // 4 - menu + // 8 - self check and game casette check + // 10 - lock? + // 20 - game title & count display + case 7: return 0x22; // TV type, key not turned, relay B + default: return 0; + } +} + +static void SSSNROMPower(void) +{ + regs[0]=regs[1]=regs[2]=regs[3]=regs[4]=regs[5]=regs[6]=0; + regs[7]=0xff; + Sync(); + memset(WRAM,0x00,WRAMSIZE); +// SetWriteHandler(0x0000,0x1FFF,SSSNROMRamWrite); + SetReadHandler(0x0800,0x1FFF,CartBR); + SetWriteHandler(0x0800,0x1FFF,CartBW); + SetReadHandler(0x5000,0x5FFF,SSSNROMRead); + SetWriteHandler(0x5000,0x5FFF,SSSNROMWrite); + SetReadHandler(0x6000,0x7FFF,CartBR); + SetWriteHandler(0x6000,0x7FFF,CartBW); + SetReadHandler(0x8000,0xFFFF,CartBR); +} + +static void SSSNROMReset(void) +{ + regs[1]=regs[2]=regs[3]=regs[4]=regs[5]=regs[6]=0; +} + +static void SSSNROMClose(void) +{ + if(WRAM) + FCEU_gfree(WRAM); + WRAM=NULL; +} + +static void SSSNROMIRQHook(void) +{ +// X6502_IRQBegin(FCEU_IQEXT); +} + +static void StateRestore(int version) +{ + Sync(); +} + +void SSSNROM_Init(CartInfo *info) +{ + info->Reset=SSSNROMReset; + info->Power=SSSNROMPower; + info->Close=SSSNROMClose; + GameHBIRQHook=SSSNROMIRQHook; + GameStateRestore=StateRestore; + + WRAMSIZE=16384; + WRAM=(uint8*)FCEU_gmalloc(WRAMSIZE); + SetupCartPRGMapping(0x10,WRAM,WRAMSIZE,1); + + AddExState(WRAM, WRAMSIZE, 0, "WRAM"); + AddExState(&StateRegs, ~0, 0, 0); +}