1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
|
////////////////////////////////////////////////////////////////////////////////////////
//
// 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 "NstInpCrazyClimber.hpp"
namespace Nes
{
namespace Core
{
namespace Input
{
#ifdef NST_MSVC_OPTIMIZE
#pragma optimize("s", on)
#endif
CrazyClimber::CrazyClimber(const Cpu& c)
: Device(c,Api::Input::CRAZYCLIMBER)
{
CrazyClimber::Reset();
}
void CrazyClimber::Reset()
{
shifter = 1;
stream[LEFT] = 0;
stream[RIGHT] = 0;
state[LEFT] = 0;
state[RIGHT] = 0;
}
void CrazyClimber::SaveState(State::Saver& saver,const byte id) const
{
saver.Begin( AsciiId<'C','C'>::R(0,0,id) ).Write8( shifter ^ 1 ).End();
}
void CrazyClimber::LoadState(State::Loader& loader,const dword id)
{
if (id == AsciiId<'C','C'>::V)
shifter = ~loader.Read8() & 0x1;
}
#ifdef NST_MSVC_OPTIMIZE
#pragma optimize("", on)
#endif
uint CrazyClimber::Peek(const uint port)
{
NST_ASSERT( port <= 1 );
const uint data = stream[port];
stream[port] >>= shifter;
return data & 0x1;
}
void CrazyClimber::Poke(const uint data)
{
const uint prev = shifter;
shifter = ~data & 0x1;
if (prev < shifter)
{
if (input)
{
Controllers::CrazyClimber& crazy = input->crazyClimber;
input = NULL;
if (Controllers::CrazyClimber::callback( crazy ))
{
state[LEFT] = crazy.left;
state[RIGHT] = crazy.right;
for (uint i=0; i < 2; ++i)
{
if ((state[i] & (BUTTON_LEFT|BUTTON_RIGHT)) == (BUTTON_LEFT|BUTTON_RIGHT))
state[i] &= (BUTTON_LEFT|BUTTON_RIGHT) ^ 0xFFU;
if ((state[i] & (BUTTON_UP|BUTTON_DOWN)) == (BUTTON_UP|BUTTON_DOWN))
state[i] &= (BUTTON_UP|BUTTON_DOWN) ^ 0xFFU;
}
}
}
stream[LEFT] = state[LEFT];
stream[RIGHT] = state[RIGHT];
}
}
}
}
}
|
