69 lines
1.8 KiB
C++
69 lines
1.8 KiB
C++
|
/* FCE Ultra - NES/Famicom Emulator
|
||
|
|
*
|
||
|
|
* Copyright notice for this file:
|
||
|
|
* Copyright (C) 2011 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 reg, mirr;
|
||
|
|
|
||
|
|
static SFORMAT StateRegs[] =
|
||
|
|
{
|
||
|
|
{ ®, 1, "REG" },
|
||
|
|
{ &mirr, 1, "MIRR" },
|
||
|
|
{ 0 }
|
||
|
|
};
|
||
|
|
|
||
|
|
static void Sync(void) {
|
||
|
|
setprg8(0x6000, reg);
|
||
|
|
setprg32r(1, 0x8000, 0);
|
||
|
|
setchr8(0);
|
||
|
|
setmirror(mirr);
|
||
|
|
}
|
||
|
|
|
||
|
|
static DECLFW(AC08Mirr) {
|
||
|
|
mirr = ((V & 8) >> 3) ^ 1;
|
||
|
|
Sync();
|
||
|
|
}
|
||
|
|
|
||
|
|
static DECLFW(AC08Write) {
|
||
|
|
if (A == 0x8001) // Green Berret bank switching is only 100x xxxx xxxx xxx1 mask
|
||
|
|
reg = (V >> 1) & 0xf;
|
||
|
|
else
|
||
|
|
reg = V & 0xf; // Sad But True, 2-in-1 mapper, Green Berret need value shifted left one byte, Castlevania doesn't
|
||
|
|
Sync();
|
||
|
|
}
|
||
|
|
|
||
|
|
static void AC08Power(void) {
|
||
|
|
reg = 0;
|
||
|
|
Sync();
|
||
|
|
SetReadHandler(0x6000, 0xFFFF, CartBR);
|
||
|
|
SetWriteHandler(0x4025, 0x4025, AC08Mirr);
|
||
|
|
SetWriteHandler(0x8000, 0xFFFF, AC08Write);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void StateRestore(int version) {
|
||
|
|
Sync();
|
||
|
|
}
|
||
|
|
|
||
|
|
void AC08_Init(CartInfo *info) {
|
||
|
|
info->Power = AC08Power;
|
||
|
|
GameStateRestore = StateRestore;
|
||
|
|
AddExState(&StateRegs, ~0, 0, 0);
|
||
|
|
}
|