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////////////////////////////////////////////////////////////////////////////////////////
//
// Nestopia - NES/Famicom emulator written in C++
//
// Copyright (C) 2003-2008 Martin Freij
//
// This file is part of Nestopia.
//
// Nestopia 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.
//
// Nestopia 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 Nestopia; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
////////////////////////////////////////////////////////////////////////////////////////
#include "NstBoard.hpp"
#include "../NstDipSwitches.hpp"
#include "NstBoardBmc800in1.hpp"
#include "../NstCrc32.hpp"
namespace Nes
{
namespace Core
{
namespace Boards
{
namespace Bmc
{
#ifdef NST_MSVC_OPTIMIZE
#pragma optimize("s", on)
#endif
Game800in1::CartSwitches::CartSwitches(const Context& c)
:
type (DetectType(c)),
mode (type == GAME_800IN1 ? 0x6 : type == GAME_70IN1 ? 0xD : 0x0)
{}
Game800in1::CartSwitches::Type Game800in1::CartSwitches::DetectType(const Context& c)
{
switch (Crc32::Compute(c.prg.Mem(),c.prg.Size()))
{
case GAME_800IN1: return GAME_800IN1;
case GAME_70IN1: return GAME_70IN1;
}
return GAME_XIN1;
}
inline void Game800in1::CartSwitches::SetMode(uint value)
{
mode = value;
}
inline uint Game800in1::CartSwitches::GetMode() const
{
return mode;
}
uint Game800in1::CartSwitches::GetValue(uint) const
{
return mode;
}
void Game800in1::CartSwitches::SetValue(uint,uint value)
{
mode = value;
}
uint Game800in1::CartSwitches::NumDips() const
{
return 1;
}
uint Game800in1::CartSwitches::NumValues(uint) const
{
return 16;
}
cstring Game800in1::CartSwitches::GetDipName(uint) const
{
return "Mode";
}
cstring Game800in1::CartSwitches::GetValueName(uint,uint i) const
{
static cstring const names[3][16] =
{
{
"1", "2", "3", "4",
"5", "6", "7", "8",
"9", "10", "11", "12",
"13", "14", "15", "16"
},
{
"76-in-1", "150-in-1", "168-in-1", "190-in-1",
"400-in-1", "500-in-1", "800-in-1", "1200-in-1",
"2000-in-1", "5000-in-1", "300-in-1", "1500-in-1",
"3000-in-1", "1010000-in-1", "5010000-in-1", "10000000-in-1"
},
{
"4-in-1", "5-in-1", "6-in-1", "77-in-1",
"22-in-1", "38-in-1", "44-in-1", "46-in-1",
"52-in-1", "55-in-1", "63-in-1", "66-in-1",
"68-in-1", "70-in-1", "32-in-1", "80-in-1"
}
};
return names[type == GAME_70IN1 ? 2 : type == GAME_800IN1 ? 1 : 0][i];
}
Game800in1::Game800in1(const Context& c)
: Board(c), cartSwitches(c) {}
Game800in1::Device Game800in1::QueryDevice(DeviceType type)
{
if (type == DEVICE_DIP_SWITCHES)
return &cartSwitches;
else
return Board::QueryDevice( type );
}
void Game800in1::SubReset(bool)
{
mode = 0x0;
Map( 0x8000U, 0xFFFFU, &Game800in1::Peek_8000, &Game800in1::Poke_8000 );
NES_DO_POKE(8000,0x8000,0x00);
NES_DO_POKE(8000,0xC000,0x00);
}
void Game800in1::SubLoad(State::Loader& state,const dword baseChunk)
{
NST_VERIFY( baseChunk == (AsciiId<'B','8','1'>::V) );
if (baseChunk == AsciiId<'B','8','1'>::V)
{
while (const dword chunk = state.Begin())
{
if (chunk == AsciiId<'R','E','G'>::V)
{
const uint data = state.Read8();
mode = data >> 4 & 0x1;
cartSwitches.SetMode( data & 0xF );
}
state.End();
}
}
}
void Game800in1::SubSave(State::Saver& state) const
{
state.Begin( AsciiId<'B','8','1'>::V ).Begin( AsciiId<'R','E','G'>::V ).Write8( cartSwitches.GetMode() | (mode << 4) ).End().End();
}
#ifdef NST_MSVC_OPTIMIZE
#pragma optimize("", on)
#endif
NES_PEEK_A(Game800in1,8000)
{
return prg.Peek( mode ? (address & 0x7FF0) | cartSwitches.GetMode() : address - 0x8000 );
}
NES_POKE_A(Game800in1,8000)
{
uint banks[2] =
{
prg.GetBank<SIZE_16K,0x0000>(),
prg.GetBank<SIZE_16K,0x4000>()
};
if (address < 0xC000)
{
ppu.SetMirroring( (address & 0x20) ? Ppu::NMT_H : Ppu::NMT_V );
if (chr.Source().GetType() == Ram::RAM)
{
banks[0] = (banks[0] & 0x7) | (address << 3 & 0x38);
banks[1] = (banks[1] & 0x7) | (address << 3 & 0x38);
}
else
{
chr.SwapBank<SIZE_8K,0x0000>( address & 0x7 );
return;
}
}
else switch (address & 0x30)
{
case 0x00: mode = 0x0; banks[0] = (banks[0] & 0x38) | (address & 0x7); banks[1] = banks[0] | 0x7; break;
case 0x10: mode = 0x1; banks[0] = (banks[0] & 0x38) | (address & 0x7); banks[1] = banks[0] | 0x7; break;
case 0x20: mode = 0x0; banks[0] = (banks[0] & 0x38) | (address & 0x6); banks[1] = banks[0] | 0x1; break;
case 0x30: mode = 0x0; banks[0] = (banks[0] & 0x38) | (address & 0x7); banks[1] = banks[0] | 0x0; break;
}
prg.SwapBanks<SIZE_16K,0x0000>( banks[0], banks[1] );
}
}
}
}
}
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