X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?p=fceu.git;a=blobdiff_plain;f=boards%2Fbonza.c;h=ba390e6cd50eba6eb9240cc9d1d61e1eb8491b98;hp=5e572f14c079368c620780dab559b7d2b9d75aae;hb=47d0839eef773569f1093b47d795714cac0dacd2;hpb=d97315ac0bca825d2d50a44453bc5652946e2c67 diff --git a/boards/bonza.c b/boards/bonza.c index 5e572f1..ba390e6 100644 --- a/boards/bonza.c +++ b/boards/bonza.c @@ -1,139 +1,139 @@ -/* FCE Ultra - NES/Famicom Emulator - * - * Copyright notice for this file: - * Copyright (C) 2002 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 prg_reg; -static uint8 chr_reg; - -static uint8 sim0reg, sim0bit, sim0byte, sim0parity, sim0bcnt; -static uint16 sim0data; -static uint8 sim0array[128] = -{ - 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, - 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, - 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, - 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, - 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, - 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, - 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, - 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0xAA, -}; - -static SFORMAT StateRegs[]= -{ - {&prg_reg, 1, "PREG"}, - {&chr_reg, 1, "CREG"}, - {0} -}; - -static void Sync(void) -{ - setprg32(0x8000, prg_reg); - setchr8(chr_reg); -} - -static void StateRestore(int version) -{ - Sync(); -} - -static DECLFW(M216WriteHi) -{ -// FCEU_printf("%04x:%04x\n",A,V); - prg_reg=A&1; - chr_reg=(A&0x0E)>>1; - Sync(); -} - -static DECLFW(M216Write5000) -{ -// FCEU_printf("WRITE: %04x:%04x\n",A,V); - sim0reg=V; - if(!sim0reg) - { - sim0bit=sim0byte=sim0parity=0; - sim0data=sim0array[0]; - sim0bcnt=0x80; - } - else if(sim0reg&0x20) - { - sim0bcnt=0x20; - } -} - -static DECLFR(M216Read5000) -{ - if(sim0reg&0x60) - { - sim0reg=(sim0reg^(sim0reg<<1))&0x40; - return sim0reg; - } - else - { - uint8 sim0out=0; - if(sim0bit<8) - { -// sim0data=((sim0array[sim0byte]<<(sim0bit))&0x80)>>1; - sim0out=(sim0data&1)<<6; - sim0data>>=1; - sim0bit++; - sim0parity+=sim0data; - } - else if(sim0bit==8) - { - sim0bit++; - sim0out=sim0parity&1; - } - else if(sim0bit==9) - { - if(sim0byte==sim0bcnt) - sim0out=0x60; - else - { - sim0bit=0; - sim0byte++; - sim0data=sim0array[sim0byte]; - sim0out=0; - } - } -// FCEU_printf("READ: %04x (%04x-%02x,%04x)\n",A,X.PC,sim0out,sim0byte); - return sim0out; - } -} - -static void Power(void) -{ - prg_reg = 0; - chr_reg = 0; - Sync(); - SetReadHandler(0x8000,0xFFFF,CartBR); - SetWriteHandler(0x8000,0xFFFF,M216WriteHi); - SetWriteHandler(0x5000,0x5000,M216Write5000); - SetReadHandler(0x5000,0x5000,M216Read5000); -} - - -void Mapper216_Init(CartInfo *info) -{ - info->Power=Power; - GameStateRestore=StateRestore; - AddExState(&StateRegs, ~0, 0, 0); -} +/* FCE Ultra - NES/Famicom Emulator + * + * Copyright notice for this file: + * Copyright (C) 2002 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 prg_reg; +static uint8 chr_reg; + +static uint8 sim0reg, sim0bit, sim0byte, sim0parity, sim0bcnt; +static uint16 sim0data; +static uint8 sim0array[128] = +{ + 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, + 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, + 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, + 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, + 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, + 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, + 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, + 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0xAA, +}; + +static SFORMAT StateRegs[]= +{ + {&prg_reg, 1, "PREG"}, + {&chr_reg, 1, "CREG"}, + {0} +}; + +static void Sync(void) +{ + setprg32(0x8000, prg_reg); + setchr8(chr_reg); +} + +static void StateRestore(int version) +{ + Sync(); +} + +static DECLFW(M216WriteHi) +{ +// FCEU_printf("%04x:%04x\n",A,V); + prg_reg=A&1; + chr_reg=(A&0x0E)>>1; + Sync(); +} + +static DECLFW(M216Write5000) +{ +// FCEU_printf("WRITE: %04x:%04x\n",A,V); + sim0reg=V; + if(!sim0reg) + { + sim0bit=sim0byte=sim0parity=0; + sim0data=sim0array[0]; + sim0bcnt=0x80; + } + else if(sim0reg&0x20) + { + sim0bcnt=0x20; + } +} + +static DECLFR(M216Read5000) +{ + if(sim0reg&0x60) + { + sim0reg=(sim0reg^(sim0reg<<1))&0x40; + return sim0reg; + } + else + { + uint8 sim0out=0; + if(sim0bit<8) + { +// sim0data=((sim0array[sim0byte]<<(sim0bit))&0x80)>>1; + sim0out=(sim0data&1)<<6; + sim0data>>=1; + sim0bit++; + sim0parity+=sim0data; + } + else if(sim0bit==8) + { + sim0bit++; + sim0out=sim0parity&1; + } + else if(sim0bit==9) + { + if(sim0byte==sim0bcnt) + sim0out=0x60; + else + { + sim0bit=0; + sim0byte++; + sim0data=sim0array[sim0byte]; + sim0out=0; + } + } +// FCEU_printf("READ: %04x (%04x-%02x,%04x)\n",A,X.PC,sim0out,sim0byte); + return sim0out; + } +} + +static void Power(void) +{ + prg_reg = 0; + chr_reg = 0; + Sync(); + SetReadHandler(0x8000,0xFFFF,CartBR); + SetWriteHandler(0x8000,0xFFFF,M216WriteHi); + SetWriteHandler(0x5000,0x5000,M216Write5000); + SetReadHandler(0x5000,0x5000,M216Read5000); +} + + +void Mapper216_Init(CartInfo *info) +{ + info->Power=Power; + GameStateRestore=StateRestore; + AddExState(&StateRegs, ~0, 0, 0); +}