mirror of
https://github.com/dborth/fceugx.git
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71 lines
2.0 KiB
C++
71 lines
2.0 KiB
C++
/* FCE Ultra - NES/Famicom Emulator
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*
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* Copyright notice for this file:
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* Copyright (C) 2005 CaH4e3
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "mapinc.h"
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#include "mmc3.h"
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extern uint8 m114_perm[8];
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static void H2288PW(uint32 A, uint8 V) {
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if (EXPREGS[0] & 0x40) {
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uint8 bank = (EXPREGS[0] & 5) | ((EXPREGS[0] & 8) >> 2) | ((EXPREGS[0] & 0x20) >> 2);
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if (EXPREGS[0] & 2)
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setprg32(0x8000, bank >> 1);
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else{
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setprg16(0x8000, bank);
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setprg16(0xC000, bank);
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}
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} else
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setprg8(A, V & 0x3F);
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}
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static DECLFW(H2288WriteHi) {
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switch (A & 0x8001) {
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case 0x8000: MMC3_CMDWrite(0x8000, (V & 0xC0) | (m114_perm[V & 7])); break;
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case 0x8001: MMC3_CMDWrite(0x8001, V); break;
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}
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}
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static DECLFW(H2288WriteLo) {
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if (A & 0x800) {
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if (A & 1)
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EXPREGS[1] = V;
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else
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EXPREGS[0] = V;
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FixMMC3PRG(MMC3_cmd);
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}
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}
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static void H2288Power(void) {
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EXPREGS[0] = EXPREGS[1] = 0;
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GenMMC3Power();
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// SetReadHandler(0x5000,0x5FFF,H2288Read);
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SetReadHandler(0x8000, 0xFFFF, CartBR);
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SetWriteHandler(0x5000, 0x5FFF, H2288WriteLo);
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SetWriteHandler(0x8000, 0x9FFF, H2288WriteHi);
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}
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void UNLH2288_Init(CartInfo *info) {
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GenMMC3_Init(info, 256, 256, 0, 0);
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pwrap = H2288PW;
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info->Power = H2288Power;
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AddExState(EXPREGS, 2, 0, "EXPR");
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}
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