mirror of
https://github.com/0ldsk00l/nestopia.git
synced 2025-04-02 10:31:51 -04:00
120 lines
2.8 KiB
C++
120 lines
2.8 KiB
C++
////////////////////////////////////////////////////////////////////////////////////////
|
|
//
|
|
// 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 "NstInpDevice.hpp"
|
|
#include "NstInpPachinko.hpp"
|
|
|
|
namespace Nes
|
|
{
|
|
namespace Core
|
|
{
|
|
namespace Input
|
|
{
|
|
#ifdef NST_MSVC_OPTIMIZE
|
|
#pragma optimize("s", on)
|
|
#endif
|
|
|
|
Pachinko::Pachinko(const Cpu& c)
|
|
: Device(c,Api::Input::PACHINKO)
|
|
{
|
|
Pachinko::Reset();
|
|
}
|
|
|
|
void Pachinko::Reset()
|
|
{
|
|
strobe = 0;
|
|
stream = 0;
|
|
state = 0xFF0000;
|
|
}
|
|
|
|
void Pachinko::SaveState(State::Saver& saver,const byte id) const
|
|
{
|
|
saver.Begin( AsciiId<'P','A'>::R(0,0,id) ).Write8( strobe ).Write32( stream ).End();
|
|
}
|
|
|
|
void Pachinko::LoadState(State::Loader& loader,const dword id)
|
|
{
|
|
if (id == AsciiId<'P','A'>::V)
|
|
{
|
|
strobe = loader.Read8() & 0x1;
|
|
stream = loader.Read32();
|
|
}
|
|
}
|
|
|
|
#ifdef NST_MSVC_OPTIMIZE
|
|
#pragma optimize("", on)
|
|
#endif
|
|
|
|
uint Pachinko::Peek(uint port)
|
|
{
|
|
if (port == 0)
|
|
{
|
|
port = stream;
|
|
stream >>= 1;
|
|
return port & 0x2;
|
|
}
|
|
else
|
|
{
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
void Pachinko::Poke(uint data)
|
|
{
|
|
const uint prev = strobe;
|
|
strobe = data & 0x1;
|
|
|
|
if (prev > strobe)
|
|
{
|
|
if (input)
|
|
{
|
|
Controllers::Pachinko& pachinko = input->pachinko;
|
|
input = NULL;
|
|
|
|
if (Controllers::Pachinko::callback( pachinko ))
|
|
{
|
|
uint throttle = Clamp<-64,+63>(pachinko.throttle) + 192;
|
|
|
|
throttle =
|
|
(
|
|
(throttle >> 7 & 0x01) |
|
|
(throttle >> 5 & 0x02) |
|
|
(throttle >> 3 & 0x04) |
|
|
(throttle >> 1 & 0x08) |
|
|
(throttle << 1 & 0x10) |
|
|
(throttle << 3 & 0x20) |
|
|
(throttle << 5 & 0x40) |
|
|
(throttle << 7 & 0x80)
|
|
);
|
|
|
|
state = ((pachinko.buttons & 0xFF) | (throttle << 8) | 0xFF0000UL) << 1;
|
|
}
|
|
}
|
|
|
|
stream = state;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|