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
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
|
////////////////////////////////////////////////////////////////////////////////////////
//
// 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
//
////////////////////////////////////////////////////////////////////////////////////////
#ifndef NST_IO_PORT_H
#define NST_IO_PORT_H
#ifdef NST_PRAGMA_ONCE
#pragma once
#endif
namespace Nes
{
namespace Core
{
namespace Io
{
#ifdef NST_FASTDELEGATE
class Port
{
class Component {};
typedef Data (NST_FASTCALL Component::*Reader)(Address);
typedef void (NST_FASTCALL Component::*Writer)(Address,Data);
Component* component;
Reader reader;
Writer writer;
NST_COMPILE_ASSERT
(
sizeof( Reader ) <= sizeof( Data (*)(void*,Address) ) &&
sizeof( Writer ) <= sizeof( Data (*)(void*,Address,Data) )
);
public:
Port() {}
template<typename T>
Port(T* c,Data (NST_FASTCALL T::*r)(Address),void (NST_FASTCALL T::*w)(Address,Data))
:
component ( reinterpret_cast<Component*>(c) ),
reader ( reinterpret_cast<Reader>(r) ),
writer ( reinterpret_cast<Writer>(w) )
{
NST_COMPILE_ASSERT( sizeof(reader) == sizeof(r) && sizeof(writer) == sizeof(w) );
}
template<typename T>
void Set(T* c,Data (NST_FASTCALL T::*r)(Address),void (NST_FASTCALL T::*w)(Address,Data))
{
NST_COMPILE_ASSERT( sizeof(reader) == sizeof(r) && sizeof(writer) == sizeof(w) );
component = reinterpret_cast<Component*>(c);
reader = reinterpret_cast<Reader>(r);
writer = reinterpret_cast<Writer>(w);
}
template<typename T>
void Set(Data (NST_FASTCALL T::*r)(Address))
{
NST_COMPILE_ASSERT( sizeof(reader) == sizeof(r) );
reader = reinterpret_cast<Reader>(r);
}
template<typename T>
void Set(void (NST_FASTCALL T::*w)(Address,Data))
{
NST_COMPILE_ASSERT( sizeof(writer) == sizeof(w) );
writer = reinterpret_cast<Writer>(w);
}
template<typename T>
void Set(Data (NST_FASTCALL T::*r)(Address),void (NST_FASTCALL T::*w)(Address,Data))
{
NST_COMPILE_ASSERT( sizeof(reader) == sizeof(r) && sizeof(writer) == sizeof(w) );
reader = reinterpret_cast<Reader>(r);
writer = reinterpret_cast<Writer>(w);
}
uint Peek(Address address) const
{
return (*component.*reader)( address );
}
void Poke(Address address,Data data) const
{
(*component.*writer)( address, data );
}
bool operator == (const Port& p) const
{
return component == p.component && reader == p.reader && writer == p.writer;
}
};
#define NES_DECL_PEEK(a_) Data NST_FASTCALL Peek_##a_(Address)
#define NES_DECL_POKE(a_) void NST_FASTCALL Poke_##a_(Address,Data)
#define NES_PEEK(o_,a_) Data NST_FASTCALL o_::Peek_##a_(Address)
#define NES_PEEK_A(o_,a_) Data NST_FASTCALL o_::Peek_##a_(Address address)
#define NES_POKE(o_,a_) void NST_FASTCALL o_::Poke_##a_(Address,Data)
#define NES_POKE_A(o_,a_) void NST_FASTCALL o_::Poke_##a_(Address address,Data)
#define NES_POKE_D(o_,a_) void NST_FASTCALL o_::Poke_##a_(Address,Data data)
#define NES_POKE_AD(o_,a_) void NST_FASTCALL o_::Poke_##a_(Address address,Data data)
#define NES_DO_POKE(a_,p_,d_) Poke_##a_(p_,d_)
#define NES_DO_PEEK(a_,p_) Peek_##a_(p_)
#else
class Port
{
typedef void* Component;
typedef Data (NST_REGCALL *Reader)(Component,Address);
typedef void (NST_REGCALL *Writer)(Component,Address,Data);
Component component;
Reader reader;
Writer writer;
public:
Port() {}
Port(Component c,Reader r,Writer w)
:
component ( c ),
reader ( r ),
writer ( w )
{}
void Set(Component c,Reader r,Writer w)
{
component = c;
reader = r;
writer = w;
}
void Set(Reader r)
{
reader = r;
}
void Set(Writer w)
{
writer = w;
}
void Set(Reader r,Writer w)
{
reader = r;
writer = w;
}
Data Peek(Address address) const
{
return reader( component, address );
}
void Poke(Address address,Data data) const
{
writer( component, address, data );
}
bool operator == (const Port& p) const
{
return component == p.component && reader == p.reader && writer == p.writer;
}
};
#define NES_DECL_PEEK(a_) \
\
NST_SINGLE_CALL Data NST_FASTCALL Peek_M_##a_(Address); \
static Data NST_REGCALL Peek_##a_(void*,Address)
#define NES_DECL_POKE(a_) \
\
NST_SINGLE_CALL void NST_FASTCALL Poke_M_##a_(Address,Data); \
static void NST_REGCALL Poke_##a_(void*,Address,Data)
#define NES_PEEK(o_,a_) \
\
Data NST_REGCALL o_::Peek_##a_(void* p_,Address i_) \
{ \
return static_cast<o_*>(p_)->Peek_M_##a_(i_); \
} \
\
NST_SINGLE_CALL Data NST_FASTCALL o_::Peek_M_##a_(Address)
#define NES_PEEK_A(o_,a_) \
\
Data NST_REGCALL o_::Peek_##a_(void* p_,Address i_) \
{ \
return static_cast<o_*>(p_)->Peek_M_##a_(i_); \
} \
\
NST_SINGLE_CALL Data NST_FASTCALL o_::Peek_M_##a_(Address address)
#define NES_POKE(o_,a_) \
\
void NST_REGCALL o_::Poke_##a_(void* p_,Address i_,Data j_) \
{ \
static_cast<o_*>(p_)->Poke_M_##a_(i_,j_); \
} \
\
NST_SINGLE_CALL void NST_FASTCALL o_::Poke_M_##a_(Address,Data)
#define NES_POKE_A(o_,a_) \
\
void NST_REGCALL o_::Poke_##a_(void* p_,Address i_,Data j_) \
{ \
static_cast<o_*>(p_)->Poke_M_##a_(i_,j_); \
} \
\
NST_SINGLE_CALL void NST_FASTCALL o_::Poke_M_##a_(Address address,Data)
#define NES_POKE_D(o_,a_) \
\
void NST_REGCALL o_::Poke_##a_(void* p_,Address i_,Data j_) \
{ \
static_cast<o_*>(p_)->Poke_M_##a_(i_,j_); \
} \
\
NST_SINGLE_CALL void NST_FASTCALL o_::Poke_M_##a_(Address,Data data)
#define NES_POKE_AD(o_,a_) \
\
void NST_REGCALL o_::Poke_##a_(void* p_,Address i_,Data j_) \
{ \
static_cast<o_*>(p_)->Poke_M_##a_(i_,j_); \
} \
\
NST_SINGLE_CALL void NST_FASTCALL o_::Poke_M_##a_(Address address,Data data)
#define NES_DO_POKE(a_,p_,d_) Poke_##a_(this,p_,d_)
#define NES_DO_PEEK(a_,p_) Peek_##a_(this,p_)
#endif
}
}
}
#endif
|
