blob: 11dc1ff72acb784c90c1944f2cd18dd7f2e79a87 (
plain)
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
|
#include "../copyright"
#ifndef _SNES9X_H_
#define _SNES9X_H_
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <libretro.h>
#include "port.h"
#include "65c816.h"
#define ROM_NAME_LEN 23
/* SNES screen width and height */
#define SNES_WIDTH 256
#define SNES_HEIGHT 224
#define SNES_HEIGHT_EXTENDED 239
#define IMAGE_WIDTH SNES_WIDTH * 2
#define IMAGE_HEIGHT SNES_HEIGHT_EXTENDED * 2
#define SNES_MAX_NTSC_VCOUNTER 262
#define SNES_MAX_PAL_VCOUNTER 312
#define SNES_HCOUNTER_MAX 341
#define SPC700_TO_65C816_RATIO 2
#define AUTO_FRAMERATE 200
/* NTSC master clock signal 21.47727MHz
* PPU: master clock / 4
* 1 / PPU clock * 342 -> 63.695us
* 63.695us / (1 / 3.579545MHz) -> 228 cycles per scanline
* From Earth Worm Jim: APU executes an average of 65.14285714 cycles per
* scanline giving an APU clock speed of 1.022731096MHz */
/* PAL master clock signal 21.28137MHz
* PPU: master clock / 4
* 1 / PPU clock * 342 -> 64.281us
* 64.281us / (1 / 3.546895MHz) -> 228 cycles per scanline. */
#define SNES_SCANLINE_TIME (63.695e-6)
#define SNES_CLOCK_SPEED (3579545u)
#define SNES_CLOCK_LEN (1.0 / SNES_CLOCK_SPEED)
#define SNES_CYCLES_PER_SCANLINE ((uint32_t) ((SNES_SCANLINE_TIME / SNES_CLOCK_LEN) * 6 + 0.5))
#define ONE_CYCLE (overclock_cycles ? one_c : 6u)
#define SLOW_ONE_CYCLE (overclock_cycles ? slow_one_c : 8u)
#define TWO_CYCLES (overclock_cycles ? two_c : 12u)
#define SNES_TR_MASK (1u << 4)
#define SNES_TL_MASK (1u << 5)
#define SNES_X_MASK (1u << 6)
#define SNES_A_MASK (1u << 7)
#define SNES_RIGHT_MASK (1u << 8)
#define SNES_LEFT_MASK (1u << 9)
#define SNES_DOWN_MASK (1u << 10)
#define SNES_UP_MASK (1u << 11)
#define SNES_START_MASK (1u << 12)
#define SNES_SELECT_MASK (1u << 13)
#define SNES_Y_MASK (1u << 14)
#define SNES_B_MASK (1u << 15)
extern bool overclock_cycles;
extern int one_c, slow_one_c, two_c;
enum
{
SNES_MULTIPLAYER5,
SNES_JOYPAD,
SNES_MOUSE,
SNES_SUPERSCOPE,
SNES_JUSTIFIER,
SNES_JUSTIFIER_2,
SNES_MAX_CONTROLLER_OPTIONS
};
#define DEBUG_MODE_FLAG (1u << 0)
#define TRACE_FLAG (1u << 1)
#define SINGLE_STEP_FLAG (1u << 2)
#define BREAK_FLAG (1u << 3)
#define SCAN_KEYS_FLAG (1u << 4)
#define SAVE_SNAPSHOT_FLAG (1u << 5)
#define DELAYED_NMI_FLAG (1u << 6)
#define NMI_FLAG (1u << 7)
#define PROCESS_SOUND_FLAG (1u << 8)
#define FRAME_ADVANCE_FLAG (1u << 9)
#define DELAYED_NMI_FLAG2 (1u << 10)
#define IRQ_PENDING_FLAG (1u << 11)
typedef struct
{
uint32_t Flags;
bool BranchSkip;
bool NMIActive;
uint8_t IRQActive;
bool WaitingForInterrupt;
bool InDMA;
uint8_t WhichEvent;
uint8_t* PC;
uint8_t* PCBase;
uint8_t* PCAtOpcodeStart;
uint8_t* WaitAddress;
uint32_t WaitCounter;
long Cycles; /* For savestate compatibility can't change to int32_t */
long NextEvent; /* For savestate compatibility can't change to int32_t */
long V_Counter; /* For savestate compatibility can't change to int32_t */
long MemSpeed; /* For savestate compatibility can't change to int32_t */
long MemSpeedx2; /* For savestate compatibility can't change to int32_t */
long FastROMSpeed; /* For savestate compatibility can't change to int32_t */
uint32_t SaveStateVersion;
bool SRAMModified;
uint32_t NMITriggerPoint;
bool UNUSED2;
bool TriedInterleavedMode2;
uint32_t NMICycleCount;
uint32_t IRQCycleCount;
} SCPUState;
#define HBLANK_START_EVENT 0u
#define HBLANK_END_EVENT 1u
#define HTIMER_BEFORE_EVENT 2u
#define HTIMER_AFTER_EVENT 3u
#define NO_EVENT 4u
typedef struct
{
/* CPU options */
bool APUEnabled;
bool Shutdown;
int32_t H_Max;
int32_t HBlankStart;
int32_t CyclesPercentage;
bool DisableIRQ;
/* Joystick options */
bool JoystickEnabled;
/* ROM timing options (see also H_Max above) */
bool ForcePAL;
bool ForceNTSC;
bool PAL;
uint32_t FrameTimePAL;
uint32_t FrameTimeNTSC;
uint32_t FrameTime;
/* ROM image options */
bool ForceLoROM;
bool ForceHiROM;
bool ForceHeader;
bool ForceNoHeader;
bool ForceInterleaved;
bool ForceInterleaved2;
bool ForceNotInterleaved;
/* Peripheral options */
bool ForceSuperFX;
bool ForceNoSuperFX;
bool ForceDSP1;
bool ForceNoDSP1;
bool ForceSA1;
bool ForceNoSA1;
bool ForceC4;
bool ForceNoC4;
bool ForceSDD1;
bool ForceNoSDD1;
bool MultiPlayer5;
bool Mouse;
bool SuperScope;
bool SRTC;
uint32_t ControllerOption;
bool MultiPlayer5Master;
bool SuperScopeMaster;
bool MouseMaster;
bool SuperFX;
bool DSP1Master;
bool SA1;
bool C4;
bool SDD1;
bool SPC7110;
bool SPC7110RTC;
bool OBC1;
uint8_t DSP;
/* Sound options */
uint32_t SoundPlaybackRate;
#ifdef USE_BLARGG_APU
uint32_t SoundInputRate;
#endif
bool TraceSoundDSP;
bool EightBitConsoleSound; /* due to caching, this needs S9xSetEightBitConsoleSound() */
int32_t SoundBufferSize;
int32_t SoundMixInterval;
bool SoundEnvelopeHeightReading;
bool DisableSoundEcho;
bool DisableMasterVolume;
bool SoundSync;
bool InterpolatedSound;
bool ThreadSound;
bool Mute;
bool NextAPUEnabled;
/* Others */
bool ApplyCheats;
/* Fixes for individual games */
bool StarfoxHack;
bool WinterGold;
bool BS; /* Japanese Satellite System games. */
bool JustifierMaster;
bool Justifier;
bool SecondJustifier;
int8_t SETA;
} SSettings;
extern SSettings Settings;
extern SCPUState CPU;
extern char String [513];
#ifdef LAGFIX
extern bool finishedFrame;
#endif
void S9xSetPause(uint32_t mask);
void S9xClearPause(uint32_t mask);
#endif
|
