X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?p=fceu.git;a=blobdiff_plain;f=boards%2Fh2288.c;h=22bc7c2b336bec3fc102b3a72710ac07bd7e4415;hp=c2c66210b62bf3bdb36745581256ac26af5c646a;hb=e2d0dd92bfad989cce4270fc0ac5a712476c7c50;hpb=971a1d07d2f5b5a6f991ed5712275c04b933734f diff --git a/boards/h2288.c b/boards/h2288.c index c2c6621..22bc7c2 100644 --- a/boards/h2288.c +++ b/boards/h2288.c @@ -1,89 +1,89 @@ -/* 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" -#include "mmc3.h" - -extern uint8 m114_perm[8]; - -static void H2288PW(uint32 A, uint8 V) -{ - if(EXPREGS[0]&0x40) - { - uint8 bank=(EXPREGS[0]&5)|((EXPREGS[0]&8)>>2)|((EXPREGS[0]&0x20)>>2); - if(EXPREGS[0]&2) - setprg32(0x8000,bank>>1); - else - { - setprg16(0x8000,bank); - setprg16(0xC000,bank); - } - } - else - setprg8(A,V&0x3F); -} - -static DECLFW(H2288WriteHi) -{ - switch (A&0x8001) - { - case 0x8000: MMC3_CMDWrite(0x8000,(V&0xC0)|(m114_perm[V&7])); break; - case 0x8001: MMC3_CMDWrite(0x8001,V); break; - } -} - -static DECLFW(H2288WriteLo) -{ - if(A&0x800) - { - if(A&1) - EXPREGS[1]=V; - else - EXPREGS[0]=V; - FixMMC3PRG(MMC3_cmd); - } -} - -static DECLFR(H2288Read) -{ - int bit; - bit=(A&1)^1; - bit&=((A>>8)&1); - bit^=1; - return((X.DB&0xFE)|bit); -} - -static void H2288Power(void) -{ - EXPREGS[0]=EXPREGS[1]=0; - GenMMC3Power(); - SetReadHandler(0x5000,0x5FFF,H2288Read); - SetReadHandler(0x8000,0xFFFF,CartBR); - SetWriteHandler(0x5000,0x5FFF,H2288WriteLo); - SetWriteHandler(0x8000,0x8FFF,H2288WriteHi); -} - -void UNLH2288_Init(CartInfo *info) -{ - GenMMC3_Init(info, 256, 256, 0, 0); - pwrap=H2288PW; - info->Power=H2288Power; - AddExState(EXPREGS, 2, 0, "EXPR"); -} +/* 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" +#include "mmc3.h" + +extern uint8 m114_perm[8]; + +static void H2288PW(uint32 A, uint8 V) +{ + if(EXPREGS[0]&0x40) + { + uint8 bank=(EXPREGS[0]&5)|((EXPREGS[0]&8)>>2)|((EXPREGS[0]&0x20)>>2); + if(EXPREGS[0]&2) + setprg32(0x8000,bank>>1); + else + { + setprg16(0x8000,bank); + setprg16(0xC000,bank); + } + } + else + setprg8(A,V&0x3F); +} + +static DECLFW(H2288WriteHi) +{ + switch (A&0x8001) + { + case 0x8000: MMC3_CMDWrite(0x8000,(V&0xC0)|(m114_perm[V&7])); break; + case 0x8001: MMC3_CMDWrite(0x8001,V); break; + } +} + +static DECLFW(H2288WriteLo) +{ + if(A&0x800) + { + if(A&1) + EXPREGS[1]=V; + else + EXPREGS[0]=V; + FixMMC3PRG(MMC3_cmd); + } +} + +static DECLFR(H2288Read) +{ + int bit; + bit=(A&1)^1; + bit&=((A>>8)&1); + bit^=1; + return((X.DB&0xFE)|bit); +} + +static void H2288Power(void) +{ + EXPREGS[0]=EXPREGS[1]=0; + GenMMC3Power(); + SetReadHandler(0x5000,0x5FFF,H2288Read); + SetReadHandler(0x8000,0xFFFF,CartBR); + SetWriteHandler(0x5000,0x5FFF,H2288WriteLo); + SetWriteHandler(0x8000,0x8FFF,H2288WriteHi); +} + +void UNLH2288_Init(CartInfo *info) +{ + GenMMC3_Init(info, 256, 256, 0, 0); + pwrap=H2288PW; + info->Power=H2288Power; + AddExState(EXPREGS, 2, 0, "EXPR"); +}