650bc4579a
- Update exiting game database based on latest changes and testing (reference nesdev for one) - Update mapper 36, supports F-15 City War (Spain) (Gluk Video) (Unl) - add Reset function to m177, fixes games freezing when reset is pressed (might not be a hardware behavior, but its annoying for emulators :D)
92 lines
2.1 KiB
C
92 lines
2.1 KiB
C
/* FCEUmm - NES/Famicom Emulator
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*
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* Copyright notice for this file:
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* Copyright (C) 2012 CaH4e3
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* Copyright (C) 2019 Libretro Team
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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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* TXC/Micro Genius simplified mapper
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* updated 06-2019 http://wiki.nesdev.com/w/index.php/INES_Mapper_036
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*
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* Known games:
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* - Strike Wolf (Asia) (Unl)
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* - Policeman (Gluk Video) (unl)
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* - F-15 City War (Spain) (Gluk Video) (Unl)
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*/
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#include "mapinc.h"
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static uint8 regs[5];
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static SFORMAT StateRegs[] =
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{
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{ regs, 5, "REGS" },
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{ 0 }
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};
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static void Sync(void) {
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setprg32(0x8000, regs[0] >> 4);
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setchr8(regs[4] & 0x0F);
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}
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static DECLFW(M36Write4100) {
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switch(A & 0xE103) {
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case 0x4100:
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if(regs[3] & 0x10)
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regs[0]++;
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else
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regs[0] = regs[2];
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break;
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case 0x4101:
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case 0x4102:
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case 0x4103:
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regs[A & 0x03] = V;
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break;
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}
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}
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static DECLFW(M36Write4200) {
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regs[4] = V;
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Sync();
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}
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static DECLFW(M36WriteHi) {
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Sync();
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}
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static DECLFR(M36Read) {
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return ((X.DB & 0xCF) | (regs[0] & 0x30));
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}
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static void M36Power(void) {
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Sync();
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SetReadHandler(0x4100, 0x4100, M36Read);
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SetReadHandler(0x8000, 0xFFFF, CartBR);
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SetWriteHandler(0x4100, 0x4103, M36Write4100);
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SetWriteHandler(0x4200, 0x4200, M36Write4200);
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SetWriteHandler(0x8000, 0xFFFF, M36WriteHi);
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}
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static void M36Restore(int version) {
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Sync();
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}
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void Mapper36_Init(CartInfo *info) {
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info->Power = M36Power;
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GameStateRestore = M36Restore;
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AddExState(StateRegs, ~0, 0, 0);
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}
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