1/*****************************************************************************\
2 Snes9x - Portable Super Nintendo Entertainment System (TM) emulator.
3 This file is licensed under the Snes9x License.
4 For further information, consult the LICENSE file in the root directory.
5\*****************************************************************************/
6
7#include "snes9x.h"
8#include "memmap.h"
9#include "dma.h"
10#include "apu/apu.h"
11#include "fxinst.h"
12#include "fxemu.h"
13#include "srtc.h"
14#include "cheats.h"
15#ifdef NETPLAY_SUPPORT
16#include "netplay.h"
17#endif
18#ifdef DEBUGGER
19#include "debug.h"
20#include "missing.h"
21#endif
22
23struct SCPUState CPU;
24struct SICPU ICPU;
25struct SRegisters Registers;
26struct SPPU PPU;
27struct InternalPPU IPPU;
28struct SDMA DMA[8];
29struct STimings Timings;
30struct SGFX GFX;
31struct SBG BG;
32struct SLineData LineData[240];
33struct SLineMatrixData LineMatrixData[240];
34struct SDSP0 DSP0;
35struct SDSP1 DSP1;
36struct SDSP2 DSP2;
37struct SDSP3 DSP3;
38struct SDSP4 DSP4;
39struct SSA1 SA1;
40struct SSA1Registers SA1Registers;
41struct FxRegs_s GSU;
42struct FxInfo_s SuperFX;
43struct SST010 ST010;
44struct SST011 ST011;
45struct SST018 ST018;
46struct SOBC1 OBC1;
47struct SSPC7110Snapshot s7snap;
48struct SSRTCSnapshot srtcsnap;
49struct SRTCData RTCData;
50struct SBSX BSX;
51struct SMSU1 MSU1;
52struct SMulti Multi;
53struct SSettings Settings;
54struct SSNESGameFixes SNESGameFixes;
55#ifdef NETPLAY_SUPPORT
56struct SNetPlay NetPlay;
57#endif
58#ifdef DEBUGGER
59struct Missing missing;
60#endif
61struct SCheatData Cheat;
62struct Watch watches[16];
63CMemory Memory;
64
65char String[513];
66uint8 OpenBus = 0;
67uint8 *HDMAMemPointers[8];
68uint16 BlackColourMap[256];
69uint16 DirectColourMaps[8][256];
70
71SnesModel M1SNES = { 1, 3, 2 };
72SnesModel M2SNES = { 2, 4, 3 };
73SnesModel *Model = &M1SNES;
74
75uint16 SignExtend[2] =
76{
77 0x0000,
78 0xff00
79};
80
81int HDMA_ModeByteCounts[8] =
82{
83 1, 2, 2, 4, 4, 4, 2, 4
84};
85
86uint8 mul_brightness[16][32] =
87{
88 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
89 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
90 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
91 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02 },
92 { 0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x02, 0x02, 0x02, 0x02,
93 0x02, 0x02, 0x02, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x04, 0x04, 0x04, 0x04, 0x04 },
94 { 0x00, 0x00, 0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x02, 0x02, 0x02, 0x02, 0x02, 0x03, 0x03, 0x03,
95 0x03, 0x03, 0x04, 0x04, 0x04, 0x04, 0x04, 0x05, 0x05, 0x05, 0x05, 0x05, 0x06, 0x06, 0x06, 0x06 },
96 { 0x00, 0x00, 0x01, 0x01, 0x01, 0x01, 0x02, 0x02, 0x02, 0x02, 0x03, 0x03, 0x03, 0x03, 0x04, 0x04,
97 0x04, 0x05, 0x05, 0x05, 0x05, 0x06, 0x06, 0x06, 0x06, 0x07, 0x07, 0x07, 0x07, 0x08, 0x08, 0x08 },
98 { 0x00, 0x00, 0x01, 0x01, 0x01, 0x02, 0x02, 0x02, 0x03, 0x03, 0x03, 0x04, 0x04, 0x04, 0x05, 0x05,
99 0x05, 0x06, 0x06, 0x06, 0x07, 0x07, 0x07, 0x08, 0x08, 0x08, 0x09, 0x09, 0x09, 0x0a, 0x0a, 0x0a },
100 { 0x00, 0x00, 0x01, 0x01, 0x02, 0x02, 0x02, 0x03, 0x03, 0x04, 0x04, 0x04, 0x05, 0x05, 0x06, 0x06,
101 0x06, 0x07, 0x07, 0x08, 0x08, 0x08, 0x09, 0x09, 0x0a, 0x0a, 0x0a, 0x0b, 0x0b, 0x0c, 0x0c, 0x0c },
102 { 0x00, 0x00, 0x01, 0x01, 0x02, 0x02, 0x03, 0x03, 0x04, 0x04, 0x05, 0x05, 0x06, 0x06, 0x07, 0x07,
103 0x07, 0x08, 0x08, 0x09, 0x09, 0x0a, 0x0a, 0x0b, 0x0b, 0x0c, 0x0c, 0x0d, 0x0d, 0x0e, 0x0e, 0x0e },
104 { 0x00, 0x01, 0x01, 0x02, 0x02, 0x03, 0x03, 0x04, 0x04, 0x05, 0x05, 0x06, 0x06, 0x07, 0x07, 0x08,
105 0x09, 0x09, 0x0a, 0x0a, 0x0b, 0x0b, 0x0c, 0x0c, 0x0d, 0x0d, 0x0e, 0x0e, 0x0f, 0x0f, 0x10, 0x11 },
106 { 0x00, 0x01, 0x01, 0x02, 0x02, 0x03, 0x04, 0x04, 0x05, 0x05, 0x06, 0x07, 0x07, 0x08, 0x08, 0x09,
107 0x0a, 0x0a, 0x0b, 0x0b, 0x0c, 0x0d, 0x0d, 0x0e, 0x0e, 0x0f, 0x10, 0x10, 0x11, 0x11, 0x12, 0x13 },
108 { 0x00, 0x01, 0x01, 0x02, 0x03, 0x03, 0x04, 0x05, 0x05, 0x06, 0x07, 0x07, 0x08, 0x09, 0x09, 0x0a,
109 0x0b, 0x0b, 0x0c, 0x0d, 0x0d, 0x0e, 0x0f, 0x0f, 0x10, 0x11, 0x11, 0x12, 0x13, 0x13, 0x14, 0x15 },
110 { 0x00, 0x01, 0x01, 0x02, 0x03, 0x04, 0x04, 0x05, 0x06, 0x07, 0x07, 0x08, 0x09, 0x0a, 0x0a, 0x0b,
111 0x0c, 0x0c, 0x0d, 0x0e, 0x0f, 0x0f, 0x10, 0x11, 0x12, 0x12, 0x13, 0x14, 0x15, 0x15, 0x16, 0x17 },
112 { 0x00, 0x01, 0x02, 0x02, 0x03, 0x04, 0x05, 0x06, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0a, 0x0b, 0x0c,
113 0x0d, 0x0e, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x12, 0x13, 0x14, 0x15, 0x16, 0x16, 0x17, 0x18, 0x19 },
114 { 0x00, 0x01, 0x02, 0x03, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0a, 0x0b, 0x0c, 0x0d,
115 0x0e, 0x0f, 0x10, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x17, 0x18, 0x19, 0x1a, 0x1b },
116 { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e,
117 0x0f, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d },
118 { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
119 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f }
120};
121
122uint8 brightness_cap[64];
123
124uint8 S9xOpLengthsM0X0[256] =
125{
126// 0 1 2 3 4 5 6 7 8 9 A B C D E F
127 2, 2, 2, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // 0
128 2, 2, 2, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // 1
129 3, 2, 4, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // 2
130 2, 2, 2, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // 3
131 1, 2, 2, 2, 3, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // 4
132 2, 2, 2, 2, 3, 2, 2, 2, 1, 3, 1, 1, 4, 3, 3, 4, // 5
133 1, 2, 3, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // 6
134 2, 2, 2, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // 7
135 2, 2, 3, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // 8
136 2, 2, 2, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // 9
137 3, 2, 3, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // A
138 2, 2, 2, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // B
139 3, 2, 2, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // C
140 2, 2, 2, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // D
141 3, 2, 2, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // E
142 2, 2, 2, 2, 3, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4 // F
143};
144
145uint8 S9xOpLengthsM0X1[256] =
146{
147// 0 1 2 3 4 5 6 7 8 9 A B C D E F
148 2, 2, 2, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // 0
149 2, 2, 2, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // 1
150 3, 2, 4, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // 2
151 2, 2, 2, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // 3
152 1, 2, 2, 2, 3, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // 4
153 2, 2, 2, 2, 3, 2, 2, 2, 1, 3, 1, 1, 4, 3, 3, 4, // 5
154 1, 2, 3, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // 6
155 2, 2, 2, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // 7
156 2, 2, 3, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // 8
157 2, 2, 2, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // 9
158 2, 2, 2, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // A
159 2, 2, 2, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // B
160 2, 2, 2, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // C
161 2, 2, 2, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // D
162 2, 2, 2, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // E
163 2, 2, 2, 2, 3, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4 // F
164};
165
166uint8 S9xOpLengthsM1X0[256] =
167{
168// 0 1 2 3 4 5 6 7 8 9 A B C D E F
169 2, 2, 2, 2, 2, 2, 2, 2, 1, 2, 1, 1, 3, 3, 3, 4, // 0
170 2, 2, 2, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // 1
171 3, 2, 4, 2, 2, 2, 2, 2, 1, 2, 1, 1, 3, 3, 3, 4, // 2
172 2, 2, 2, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // 3
173 1, 2, 2, 2, 3, 2, 2, 2, 1, 2, 1, 1, 3, 3, 3, 4, // 4
174 2, 2, 2, 2, 3, 2, 2, 2, 1, 3, 1, 1, 4, 3, 3, 4, // 5
175 1, 2, 3, 2, 2, 2, 2, 2, 1, 2, 1, 1, 3, 3, 3, 4, // 6
176 2, 2, 2, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // 7
177 2, 2, 3, 2, 2, 2, 2, 2, 1, 2, 1, 1, 3, 3, 3, 4, // 8
178 2, 2, 2, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // 9
179 3, 2, 3, 2, 2, 2, 2, 2, 1, 2, 1, 1, 3, 3, 3, 4, // A
180 2, 2, 2, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // B
181 3, 2, 2, 2, 2, 2, 2, 2, 1, 2, 1, 1, 3, 3, 3, 4, // C
182 2, 2, 2, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // D
183 3, 2, 2, 2, 2, 2, 2, 2, 1, 2, 1, 1, 3, 3, 3, 4, // E
184 2, 2, 2, 2, 3, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4 // F
185};
186
187uint8 S9xOpLengthsM1X1[256] =
188{
189// 0 1 2 3 4 5 6 7 8 9 A B C D E F
190 2, 2, 2, 2, 2, 2, 2, 2, 1, 2, 1, 1, 3, 3, 3, 4, // 0
191 2, 2, 2, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // 1
192 3, 2, 4, 2, 2, 2, 2, 2, 1, 2, 1, 1, 3, 3, 3, 4, // 2
193 2, 2, 2, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // 3
194 1, 2, 2, 2, 3, 2, 2, 2, 1, 2, 1, 1, 3, 3, 3, 4, // 4
195 2, 2, 2, 2, 3, 2, 2, 2, 1, 3, 1, 1, 4, 3, 3, 4, // 5
196 1, 2, 3, 2, 2, 2, 2, 2, 1, 2, 1, 1, 3, 3, 3, 4, // 6
197 2, 2, 2, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // 7
198 2, 2, 3, 2, 2, 2, 2, 2, 1, 2, 1, 1, 3, 3, 3, 4, // 8
199 2, 2, 2, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // 9
200 2, 2, 2, 2, 2, 2, 2, 2, 1, 2, 1, 1, 3, 3, 3, 4, // A
201 2, 2, 2, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // B
202 2, 2, 2, 2, 2, 2, 2, 2, 1, 2, 1, 1, 3, 3, 3, 4, // C
203 2, 2, 2, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4, // D
204 2, 2, 2, 2, 2, 2, 2, 2, 1, 2, 1, 1, 3, 3, 3, 4, // E
205 2, 2, 2, 2, 3, 2, 2, 2, 1, 3, 1, 1, 3, 3, 3, 4 // F
206};
207