mirror of
https://github.com/dborth/fceugx.git
synced 2024-11-01 15:05:05 +01:00
86 lines
2.0 KiB
C++
86 lines
2.0 KiB
C++
/* FCE Ultra - NES/Famicom Emulator
|
|
*
|
|
* Copyright notice for this file:
|
|
* Copyright (C) 2007 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#include "mapinc.h"
|
|
|
|
static uint8 preg[4], creg, mirr;
|
|
|
|
static SFORMAT StateRegs[] =
|
|
{
|
|
{ preg, 4, "PREG" },
|
|
{ &creg, 1, "CREG" },
|
|
{ &mirr, 1, "MIRR" },
|
|
{ 0 }
|
|
};
|
|
|
|
static void Sync(void) {
|
|
setprg8(0x6000, preg[0]);
|
|
setprg8(0x8000, 0xa);
|
|
setprg8(0xa000, 0xb);
|
|
setprg8(0xc000, 0x6);
|
|
setprg8(0xe000, 0x7);
|
|
setchr8(0x0c);
|
|
setmirror(mirr);
|
|
}
|
|
|
|
static DECLFW(UNLKS7010Write) {
|
|
switch (A) {
|
|
case 0x4025: mirr = (((V >> 3) & 1) ^ 1); Sync(); break;
|
|
default:
|
|
FCEU_printf("bs %04x %02x\n",A,V);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void UNLKS7010Reset(void) {
|
|
preg[0]++;
|
|
if(preg[0] == 0x10) {
|
|
preg[0] = 0;
|
|
preg[1]++;
|
|
if(preg[1] == 0x10) {
|
|
preg[1] = 0;
|
|
preg[2]++;
|
|
}
|
|
}
|
|
FCEU_printf("preg %02x %02x %02x\n",preg[0], preg[1], preg[2]);
|
|
Sync();
|
|
}
|
|
|
|
static void UNLKS7010Power(void) {
|
|
preg[0] = preg[1] = preg[2] = 0;
|
|
Sync();
|
|
SetReadHandler(0x6000, 0x7fff, CartBR);
|
|
SetWriteHandler(0x6000, 0x7fff, CartBW);
|
|
SetReadHandler(0x8000, 0xffff, CartBR);
|
|
SetWriteHandler(0x4020, 0xffff, UNLKS7010Write);
|
|
}
|
|
|
|
static void StateRestore(int version) {
|
|
Sync();
|
|
}
|
|
|
|
void UNLKS7010_Init(CartInfo *info) {
|
|
info->Power = UNLKS7010Power;
|
|
info->Reset = UNLKS7010Reset;
|
|
|
|
GameStateRestore = StateRestore;
|
|
AddExState(&StateRegs, ~0, 0, 0);
|
|
}
|