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1 | #include <stdio.h>\r |
2 | #include "cd_sys.h"\r |
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3 | #include "cd_file.h"\r |
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4 | \r |
5 | #include "../PicoInt.h"\r |
6 | \r |
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7 | #define cdprintf dprintf\r |
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8 | //#define cdprintf(x...)\r |
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9 | #define DEBUG_CD\r |
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10 | \r |
11 | #define TRAY_OPEN 0x0500 // TRAY OPEN CDD status\r |
12 | #define NOCD 0x0000 // CD removed CDD status\r |
13 | #define STOPPED 0x0900 // STOPPED CDD status (happen after stop or close tray command)\r |
14 | #define READY 0x0400 // READY CDD status (also used for seeking)\r |
15 | #define FAST_FOW 0x0300 // FAST FORWARD track CDD status\r |
16 | #define FAST_REV 0x10300 // FAST REVERSE track CDD status\r |
17 | #define PLAYING 0x0100 // PLAYING audio track CDD status\r |
18 | \r |
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19 | \r |
20 | /*\r |
21 | int CDDA_Enable;\r |
22 | \r |
23 | int CD_Audio_Buffer_L[8192];\r |
24 | int CD_Audio_Buffer_R[8192];\r |
25 | int CD_Audio_Buffer_Read_Pos = 0;\r |
26 | int CD_Audio_Buffer_Write_Pos = 2000;\r |
27 | int CD_Audio_Starting;\r |
28 | */\r |
29 | \r |
30 | static int CD_Present = 0;\r |
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31 | // int CD_Timer_Counter = 0; // TODO: check refs\r |
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32 | \r |
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33 | \r |
34 | \r |
35 | #define CHECK_TRAY_OPEN \\r |
36 | if (Pico_mcd->scd.Status_CDD == TRAY_OPEN) \\r |
37 | { \\r |
38 | Pico_mcd->cdd.Status = Pico_mcd->scd.Status_CDD; \\r |
39 | \\r |
40 | Pico_mcd->cdd.Minute = 0; \\r |
41 | Pico_mcd->cdd.Seconde = 0; \\r |
42 | Pico_mcd->cdd.Frame = 0; \\r |
43 | Pico_mcd->cdd.Ext = 0; \\r |
44 | \\r |
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45 | Pico_mcd->scd.CDD_Complete = 1; \\r |
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46 | \\r |
47 | return 2; \\r |
48 | }\r |
49 | \r |
50 | \r |
51 | #define CHECK_CD_PRESENT \\r |
52 | if (!CD_Present) \\r |
53 | { \\r |
54 | Pico_mcd->scd.Status_CDD = NOCD; \\r |
55 | Pico_mcd->cdd.Status = Pico_mcd->scd.Status_CDD; \\r |
56 | \\r |
57 | Pico_mcd->cdd.Minute = 0; \\r |
58 | Pico_mcd->cdd.Seconde = 0; \\r |
59 | Pico_mcd->cdd.Frame = 0; \\r |
60 | Pico_mcd->cdd.Ext = 0; \\r |
61 | \\r |
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62 | Pico_mcd->scd.CDD_Complete = 1; \\r |
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63 | \\r |
64 | return 3; \\r |
65 | }\r |
66 | \r |
67 | \r |
68 | #if 0\r |
69 | static void MSB2DWORD(unsigned int *d, unsigned char *b)\r |
70 | {\r |
71 | unsigned int retVal;\r |
72 | \r |
73 | retVal = (unsigned int )b[0];\r |
74 | retVal = (retVal<<8) + (unsigned int )b[1];\r |
75 | retVal = (retVal<<8) + (unsigned int )b[2];\r |
76 | retVal = (retVal<<8) + (unsigned int )b[3];\r |
77 | \r |
78 | *d = retVal;\r |
79 | }\r |
80 | #endif\r |
81 | \r |
82 | static int MSF_to_LBA(_msf *MSF)\r |
83 | {\r |
84 | return (MSF->M * 60 * 75) + (MSF->S * 75) + MSF->F - 150;\r |
85 | }\r |
86 | \r |
87 | \r |
88 | void LBA_to_MSF(int lba, _msf *MSF)\r |
89 | {\r |
90 | if (lba < -150) lba = 0;\r |
91 | else lba += 150;\r |
92 | MSF->M = lba / (60 * 75);\r |
93 | MSF->S = (lba / 75) % 60;\r |
94 | MSF->F = lba % 75;\r |
95 | }\r |
96 | \r |
97 | \r |
98 | static unsigned int MSF_to_Track(_msf *MSF)\r |
99 | {\r |
100 | int i, Start, Cur;\r |
101 | \r |
102 | Start = (MSF->M << 16) + (MSF->S << 8) + MSF->F;\r |
103 | \r |
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104 | for(i = 1; i <= (Pico_mcd->TOC.Last_Track + 1); i++)\r |
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105 | {\r |
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106 | Cur = Pico_mcd->TOC.Tracks[i - 1].MSF.M << 16;\r |
107 | Cur += Pico_mcd->TOC.Tracks[i - 1].MSF.S << 8;\r |
108 | Cur += Pico_mcd->TOC.Tracks[i - 1].MSF.F;\r |
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109 | \r |
110 | if (Cur > Start) break;\r |
111 | }\r |
112 | \r |
113 | --i;\r |
114 | \r |
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115 | if (i > Pico_mcd->TOC.Last_Track) return 100;\r |
116 | else if (i < 1) i = 1;\r |
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117 | \r |
118 | return (unsigned) i;\r |
119 | }\r |
120 | \r |
121 | \r |
122 | static unsigned int LBA_to_Track(int lba)\r |
123 | {\r |
124 | _msf MSF;\r |
125 | \r |
126 | LBA_to_MSF(lba, &MSF);\r |
127 | return MSF_to_Track(&MSF);\r |
128 | }\r |
129 | \r |
130 | \r |
131 | static void Track_to_MSF(int track, _msf *MSF)\r |
132 | {\r |
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133 | if (track < 1) track = 1;\r |
134 | else if (track > Pico_mcd->TOC.Last_Track) track = Pico_mcd->TOC.Last_Track;\r |
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135 | \r |
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136 | MSF->M = Pico_mcd->TOC.Tracks[track - 1].MSF.M;\r |
137 | MSF->S = Pico_mcd->TOC.Tracks[track - 1].MSF.S;\r |
138 | MSF->F = Pico_mcd->TOC.Tracks[track - 1].MSF.F;\r |
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139 | }\r |
140 | \r |
141 | \r |
142 | int Track_to_LBA(int track)\r |
143 | {\r |
144 | _msf MSF;\r |
145 | \r |
146 | Track_to_MSF(track, &MSF);\r |
147 | return MSF_to_LBA(&MSF);\r |
148 | }\r |
149 | \r |
150 | \r |
151 | void Check_CD_Command(void)\r |
152 | {\r |
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153 | cdprintf("CHECK CD COMMAND");\r |
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154 | \r |
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155 | // Check CDC\r |
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156 | if (Pico_mcd->scd.Status_CDC & 1) // CDC is reading data ...\r |
157 | {\r |
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158 | cdprintf("Got a read command");\r |
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159 | \r |
160 | // DATA ?\r |
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161 | if (Pico_mcd->scd.Cur_Track == 1)\r |
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162 | Pico_mcd->s68k_regs[0x36] |= 0x01;\r |
163 | else Pico_mcd->s68k_regs[0x36] &= ~0x01; // AUDIO\r |
164 | \r |
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165 | if (Pico_mcd->scd.File_Add_Delay == 0)\r |
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166 | {\r |
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167 | FILE_Read_One_LBA_CDC();\r |
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168 | }\r |
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169 | else Pico_mcd->scd.File_Add_Delay--;\r |
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170 | }\r |
171 | \r |
1cd356a3 |
172 | // Check CDD\r |
173 | if (Pico_mcd->scd.CDD_Complete)\r |
174 | {\r |
175 | Pico_mcd->scd.CDD_Complete = 0;\r |
176 | \r |
177 | CDD_Export_Status();\r |
178 | }\r |
179 | \r |
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180 | if (Pico_mcd->scd.Status_CDD == FAST_FOW)\r |
181 | {\r |
182 | Pico_mcd->scd.Cur_LBA += 10;\r |
183 | CDC_Update_Header();\r |
184 | \r |
185 | }\r |
186 | else if (Pico_mcd->scd.Status_CDD == FAST_REV)\r |
187 | {\r |
188 | Pico_mcd->scd.Cur_LBA -= 10;\r |
189 | if (Pico_mcd->scd.Cur_LBA < -150) Pico_mcd->scd.Cur_LBA = -150;\r |
190 | CDC_Update_Header();\r |
191 | }\r |
192 | }\r |
193 | \r |
194 | \r |
195 | int Init_CD_Driver(void)\r |
196 | {\r |
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197 | return 0;\r |
198 | }\r |
199 | \r |
200 | \r |
201 | void End_CD_Driver(void)\r |
202 | {\r |
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203 | FILE_End();\r |
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204 | }\r |
205 | \r |
206 | \r |
207 | void Reset_CD(void)\r |
208 | {\r |
209 | Pico_mcd->scd.Cur_Track = 0;\r |
210 | Pico_mcd->scd.Cur_LBA = -150;\r |
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211 | Pico_mcd->scd.Status_CDC &= ~1;\r |
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212 | Pico_mcd->scd.Status_CDD = READY;\r |
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213 | Pico_mcd->scd.CDD_Complete = 0;\r |
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214 | Pico_mcd->scd.File_Add_Delay = 0;\r |
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215 | }\r |
216 | \r |
217 | \r |
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218 | int Insert_CD(char *iso_name, int is_bin)\r |
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219 | {\r |
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220 | int ret = 0;\r |
221 | \r |
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222 | // memset(CD_Audio_Buffer_L, 0, 4096 * 4);\r |
223 | // memset(CD_Audio_Buffer_R, 0, 4096 * 4);\r |
224 | \r |
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225 | CD_Present = 0;\r |
226 | \r |
227 | if (iso_name != NULL)\r |
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228 | {\r |
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229 | ret = Load_ISO(iso_name, is_bin);\r |
230 | if (ret == 0)\r |
231 | CD_Present = 1;\r |
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232 | }\r |
233 | \r |
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234 | return ret;\r |
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235 | }\r |
236 | \r |
237 | \r |
238 | void Stop_CD(void)\r |
239 | {\r |
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240 | Unload_ISO();\r |
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241 | CD_Present = 0;\r |
242 | }\r |
243 | \r |
244 | \r |
245 | void Change_CD(void)\r |
246 | {\r |
247 | if (Pico_mcd->scd.Status_CDD == TRAY_OPEN) Close_Tray_CDD_cC();\r |
248 | else Open_Tray_CDD_cD();\r |
249 | }\r |
250 | \r |
251 | \r |
252 | int Get_Status_CDD_c0(void)\r |
253 | {\r |
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254 | cdprintf("Status command : Cur LBA = %d", Pico_mcd->scd.Cur_LBA);\r |
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255 | \r |
256 | // Clear immediat status\r |
257 | if ((Pico_mcd->cdd.Status & 0x0F00) == 0x0200)\r |
258 | Pico_mcd->cdd.Status = (Pico_mcd->scd.Status_CDD & 0xFF00) | (Pico_mcd->cdd.Status & 0x00FF);\r |
259 | else if ((Pico_mcd->cdd.Status & 0x0F00) == 0x0700)\r |
260 | Pico_mcd->cdd.Status = (Pico_mcd->scd.Status_CDD & 0xFF00) | (Pico_mcd->cdd.Status & 0x00FF);\r |
261 | else if ((Pico_mcd->cdd.Status & 0x0F00) == 0x0E00)\r |
262 | Pico_mcd->cdd.Status = (Pico_mcd->scd.Status_CDD & 0xFF00) | (Pico_mcd->cdd.Status & 0x00FF);\r |
263 | \r |
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264 | Pico_mcd->scd.CDD_Complete = 1;\r |
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265 | \r |
266 | return 0;\r |
267 | }\r |
268 | \r |
269 | \r |
270 | int Stop_CDD_c1(void)\r |
271 | {\r |
272 | CHECK_TRAY_OPEN\r |
273 | \r |
274 | Pico_mcd->scd.Status_CDC &= ~1; // Stop CDC read\r |
275 | \r |
276 | if (CD_Present) Pico_mcd->scd.Status_CDD = STOPPED;\r |
277 | else Pico_mcd->scd.Status_CDD = NOCD;\r |
278 | Pico_mcd->cdd.Status = 0x0000;\r |
279 | \r |
280 | Pico_mcd->s68k_regs[0x36] |= 0x01; // Data bit set because stopped\r |
281 | \r |
282 | Pico_mcd->cdd.Minute = 0;\r |
283 | Pico_mcd->cdd.Seconde = 0;\r |
284 | Pico_mcd->cdd.Frame = 0;\r |
285 | Pico_mcd->cdd.Ext = 0;\r |
286 | \r |
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287 | Pico_mcd->scd.CDD_Complete = 1;\r |
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288 | \r |
289 | return 0;\r |
290 | }\r |
291 | \r |
292 | \r |
293 | int Get_Pos_CDD_c20(void)\r |
294 | {\r |
295 | _msf MSF;\r |
296 | \r |
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297 | cdprintf("command 200 : Cur LBA = %d", Pico_mcd->scd.Cur_LBA);\r |
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298 | \r |
299 | CHECK_TRAY_OPEN\r |
300 | \r |
301 | Pico_mcd->cdd.Status &= 0xFF;\r |
302 | if (!CD_Present)\r |
303 | {\r |
304 | Pico_mcd->scd.Status_CDD = NOCD;\r |
305 | Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r |
306 | }\r |
307 | // else if (!(CDC.CTRL.B.B0 & 0x80)) Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r |
308 | Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r |
309 | \r |
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310 | cdprintf("Status CDD = %.4X Status = %.4X", Pico_mcd->scd.Status_CDD, Pico_mcd->cdd.Status);\r |
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311 | \r |
312 | LBA_to_MSF(Pico_mcd->scd.Cur_LBA, &MSF);\r |
313 | \r |
314 | Pico_mcd->cdd.Minute = INT_TO_BCDW(MSF.M);\r |
315 | Pico_mcd->cdd.Seconde = INT_TO_BCDW(MSF.S);\r |
316 | Pico_mcd->cdd.Frame = INT_TO_BCDW(MSF.F);\r |
317 | Pico_mcd->cdd.Ext = 0;\r |
318 | \r |
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319 | Pico_mcd->scd.CDD_Complete = 1;\r |
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320 | \r |
321 | return 0;\r |
322 | }\r |
323 | \r |
324 | \r |
325 | int Get_Track_Pos_CDD_c21(void)\r |
326 | {\r |
327 | int elapsed_time;\r |
328 | _msf MSF;\r |
329 | \r |
330 | cdprintf("command 201 : Cur LBA = %d", Pico_mcd->scd.Cur_LBA);\r |
331 | \r |
332 | CHECK_TRAY_OPEN\r |
333 | \r |
334 | Pico_mcd->cdd.Status &= 0xFF;\r |
335 | if (!CD_Present)\r |
336 | {\r |
337 | Pico_mcd->scd.Status_CDD = NOCD;\r |
338 | Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r |
339 | }\r |
340 | // else if (!(CDC.CTRL.B.B0 & 0x80)) Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r |
341 | Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r |
342 | \r |
343 | elapsed_time = Pico_mcd->scd.Cur_LBA - Track_to_LBA(LBA_to_Track(Pico_mcd->scd.Cur_LBA));\r |
344 | LBA_to_MSF(elapsed_time - 150, &MSF);\r |
345 | \r |
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346 | cdprintf(" elapsed = %d", elapsed_time);\r |
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347 | \r |
348 | Pico_mcd->cdd.Minute = INT_TO_BCDW(MSF.M);\r |
349 | Pico_mcd->cdd.Seconde = INT_TO_BCDW(MSF.S);\r |
350 | Pico_mcd->cdd.Frame = INT_TO_BCDW(MSF.F);\r |
351 | Pico_mcd->cdd.Ext = 0;\r |
352 | \r |
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353 | Pico_mcd->scd.CDD_Complete = 1;\r |
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354 | \r |
355 | return 0;\r |
356 | }\r |
357 | \r |
358 | \r |
359 | int Get_Current_Track_CDD_c22(void)\r |
360 | {\r |
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361 | cdprintf("Status CDD = %.4X Status = %.4X", Pico_mcd->scd.Status_CDD, Pico_mcd->cdd.Status);\r |
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362 | \r |
363 | CHECK_TRAY_OPEN\r |
364 | \r |
365 | Pico_mcd->cdd.Status &= 0xFF;\r |
366 | if (!CD_Present)\r |
367 | {\r |
368 | Pico_mcd->scd.Status_CDD = NOCD;\r |
369 | Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r |
370 | }\r |
371 | // else if (!(CDC.CTRL.B.B0 & 0x80)) Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r |
372 | Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r |
373 | \r |
374 | Pico_mcd->scd.Cur_Track = LBA_to_Track(Pico_mcd->scd.Cur_LBA);\r |
375 | \r |
376 | if (Pico_mcd->scd.Cur_Track == 100) Pico_mcd->cdd.Minute = 0x0A02;\r |
377 | else Pico_mcd->cdd.Minute = INT_TO_BCDW(Pico_mcd->scd.Cur_Track);\r |
378 | Pico_mcd->cdd.Seconde = 0;\r |
379 | Pico_mcd->cdd.Frame = 0;\r |
380 | Pico_mcd->cdd.Ext = 0;\r |
381 | \r |
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382 | Pico_mcd->scd.CDD_Complete = 1;\r |
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383 | \r |
384 | return 0;\r |
385 | }\r |
386 | \r |
387 | \r |
388 | int Get_Total_Lenght_CDD_c23(void)\r |
389 | {\r |
390 | CHECK_TRAY_OPEN\r |
391 | \r |
392 | Pico_mcd->cdd.Status &= 0xFF;\r |
393 | if (!CD_Present)\r |
394 | {\r |
395 | Pico_mcd->scd.Status_CDD = NOCD;\r |
396 | Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r |
397 | }\r |
398 | // else if (!(CDC.CTRL.B.B0 & 0x80)) Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r |
399 | Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r |
400 | \r |
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401 | Pico_mcd->cdd.Minute = INT_TO_BCDW(Pico_mcd->TOC.Tracks[Pico_mcd->TOC.Last_Track].MSF.M);\r |
402 | Pico_mcd->cdd.Seconde = INT_TO_BCDW(Pico_mcd->TOC.Tracks[Pico_mcd->TOC.Last_Track].MSF.S);\r |
403 | Pico_mcd->cdd.Frame = INT_TO_BCDW(Pico_mcd->TOC.Tracks[Pico_mcd->TOC.Last_Track].MSF.F);\r |
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404 | Pico_mcd->cdd.Ext = 0;\r |
405 | \r |
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406 | Pico_mcd->scd.CDD_Complete = 1;\r |
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407 | \r |
408 | return 0;\r |
409 | }\r |
410 | \r |
411 | \r |
412 | int Get_First_Last_Track_CDD_c24(void)\r |
413 | {\r |
414 | CHECK_TRAY_OPEN\r |
415 | \r |
416 | Pico_mcd->cdd.Status &= 0xFF;\r |
417 | if (!CD_Present)\r |
418 | {\r |
419 | Pico_mcd->scd.Status_CDD = NOCD;\r |
420 | }\r |
421 | // else if (!(CDC.CTRL.B.B0 & 0x80)) Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r |
422 | Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r |
423 | \r |
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424 | Pico_mcd->cdd.Minute = INT_TO_BCDW(1);\r |
425 | Pico_mcd->cdd.Seconde = INT_TO_BCDW(Pico_mcd->TOC.Last_Track);\r |
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426 | Pico_mcd->cdd.Frame = 0;\r |
427 | Pico_mcd->cdd.Ext = 0;\r |
428 | \r |
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429 | Pico_mcd->scd.CDD_Complete = 1;\r |
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430 | \r |
431 | return 0;\r |
432 | }\r |
433 | \r |
434 | \r |
435 | int Get_Track_Adr_CDD_c25(void)\r |
436 | {\r |
437 | int track_number;\r |
438 | \r |
439 | CHECK_TRAY_OPEN\r |
440 | \r |
441 | // track number in TC4 & TC5\r |
442 | \r |
443 | track_number = (Pico_mcd->s68k_regs[0x38+10+4] & 0xF) * 10 + (Pico_mcd->s68k_regs[0x38+10+5] & 0xF);\r |
444 | \r |
445 | Pico_mcd->cdd.Status &= 0xFF;\r |
446 | if (!CD_Present)\r |
447 | {\r |
448 | Pico_mcd->scd.Status_CDD = NOCD;\r |
449 | Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r |
450 | }\r |
451 | // else if (!(CDC.CTRL.B.B0 & 0x80)) Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r |
452 | Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r |
453 | \r |
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454 | if (track_number > Pico_mcd->TOC.Last_Track) track_number = Pico_mcd->TOC.Last_Track;\r |
455 | else if (track_number < 1) track_number = 1;\r |
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456 | \r |
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457 | Pico_mcd->cdd.Minute = INT_TO_BCDW(Pico_mcd->TOC.Tracks[track_number - 1].MSF.M);\r |
458 | Pico_mcd->cdd.Seconde = INT_TO_BCDW(Pico_mcd->TOC.Tracks[track_number - 1].MSF.S);\r |
459 | Pico_mcd->cdd.Frame = INT_TO_BCDW(Pico_mcd->TOC.Tracks[track_number - 1].MSF.F);\r |
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460 | Pico_mcd->cdd.Ext = track_number % 10;\r |
461 | \r |
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462 | if (track_number == 1) Pico_mcd->cdd.Frame |= 0x0800; // data track\r |
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463 | \r |
51a902ae |
464 | Pico_mcd->scd.CDD_Complete = 1;\r |
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465 | return 0;\r |
466 | }\r |
467 | \r |
468 | \r |
469 | int Play_CDD_c3(void)\r |
470 | {\r |
471 | _msf MSF;\r |
472 | int delay, new_lba;\r |
473 | \r |
474 | CHECK_TRAY_OPEN\r |
475 | CHECK_CD_PRESENT\r |
476 | \r |
477 | // MSF of the track to play in TC buffer\r |
478 | \r |
479 | MSF.M = (Pico_mcd->s68k_regs[0x38+10+2] & 0xF) * 10 + (Pico_mcd->s68k_regs[0x38+10+3] & 0xF);\r |
480 | MSF.S = (Pico_mcd->s68k_regs[0x38+10+4] & 0xF) * 10 + (Pico_mcd->s68k_regs[0x38+10+5] & 0xF);\r |
481 | MSF.F = (Pico_mcd->s68k_regs[0x38+10+6] & 0xF) * 10 + (Pico_mcd->s68k_regs[0x38+10+7] & 0xF);\r |
482 | \r |
483 | Pico_mcd->scd.Cur_Track = MSF_to_Track(&MSF);\r |
484 | \r |
485 | new_lba = MSF_to_LBA(&MSF);\r |
486 | delay = new_lba - Pico_mcd->scd.Cur_LBA;\r |
487 | if (delay < 0) delay = -delay;\r |
488 | delay >>= 12;\r |
489 | \r |
490 | Pico_mcd->scd.Cur_LBA = new_lba;\r |
491 | CDC_Update_Header();\r |
492 | \r |
c459aefd |
493 | cdprintf("Read : Cur LBA = %d, M=%d, S=%d, F=%d", Pico_mcd->scd.Cur_LBA, MSF.M, MSF.S, MSF.F);\r |
cc68a136 |
494 | \r |
495 | if (Pico_mcd->scd.Status_CDD != PLAYING) delay += 20;\r |
496 | \r |
497 | Pico_mcd->scd.Status_CDD = PLAYING;\r |
498 | Pico_mcd->cdd.Status = 0x0102;\r |
499 | // Pico_mcd->cdd.Status = COMM_OK;\r |
500 | \r |
51a902ae |
501 | if (Pico_mcd->scd.File_Add_Delay == 0) Pico_mcd->scd.File_Add_Delay = delay;\r |
cc68a136 |
502 | \r |
75736070 |
503 | if (Pico_mcd->scd.Cur_Track == 1)\r |
cc68a136 |
504 | {\r |
505 | Pico_mcd->s68k_regs[0x36] |= 0x01; // DATA\r |
506 | }\r |
507 | else\r |
508 | {\r |
509 | Pico_mcd->s68k_regs[0x36] &= ~0x01; // AUDIO\r |
510 | //CD_Audio_Starting = 1;\r |
cc68a136 |
511 | FILE_Play_CD_LBA();\r |
cc68a136 |
512 | }\r |
513 | \r |
514 | if (Pico_mcd->scd.Cur_Track == 100) Pico_mcd->cdd.Minute = 0x0A02;\r |
515 | else Pico_mcd->cdd.Minute = INT_TO_BCDW(Pico_mcd->scd.Cur_Track);\r |
516 | Pico_mcd->cdd.Seconde = 0;\r |
517 | Pico_mcd->cdd.Frame = 0;\r |
518 | Pico_mcd->cdd.Ext = 0;\r |
519 | \r |
520 | Pico_mcd->scd.Status_CDC |= 1; // Read data with CDC\r |
521 | \r |
51a902ae |
522 | Pico_mcd->scd.CDD_Complete = 1;\r |
cc68a136 |
523 | return 0;\r |
524 | }\r |
525 | \r |
526 | \r |
527 | int Seek_CDD_c4(void)\r |
528 | {\r |
529 | _msf MSF;\r |
530 | \r |
531 | CHECK_TRAY_OPEN\r |
532 | CHECK_CD_PRESENT\r |
533 | \r |
534 | // MSF to seek in TC buffer\r |
535 | \r |
536 | MSF.M = (Pico_mcd->s68k_regs[0x38+10+2] & 0xF) * 10 + (Pico_mcd->s68k_regs[0x38+10+3] & 0xF);\r |
537 | MSF.S = (Pico_mcd->s68k_regs[0x38+10+4] & 0xF) * 10 + (Pico_mcd->s68k_regs[0x38+10+5] & 0xF);\r |
538 | MSF.F = (Pico_mcd->s68k_regs[0x38+10+6] & 0xF) * 10 + (Pico_mcd->s68k_regs[0x38+10+7] & 0xF);\r |
539 | \r |
540 | Pico_mcd->scd.Cur_Track = MSF_to_Track(&MSF);\r |
541 | Pico_mcd->scd.Cur_LBA = MSF_to_LBA(&MSF);\r |
542 | CDC_Update_Header();\r |
543 | \r |
544 | Pico_mcd->scd.Status_CDC &= ~1; // Stop CDC read\r |
545 | \r |
546 | Pico_mcd->scd.Status_CDD = READY;\r |
547 | Pico_mcd->cdd.Status = 0x0200;\r |
548 | \r |
549 | // DATA ?\r |
75736070 |
550 | if (Pico_mcd->scd.Cur_Track == 1)\r |
cc68a136 |
551 | Pico_mcd->s68k_regs[0x36] |= 0x01;\r |
552 | else Pico_mcd->s68k_regs[0x36] &= ~0x01; // AUDIO\r |
553 | \r |
554 | Pico_mcd->cdd.Minute = 0;\r |
555 | Pico_mcd->cdd.Seconde = 0;\r |
556 | Pico_mcd->cdd.Frame = 0;\r |
557 | Pico_mcd->cdd.Ext = 0;\r |
558 | \r |
51a902ae |
559 | Pico_mcd->scd.CDD_Complete = 1;\r |
cc68a136 |
560 | \r |
561 | return 0;\r |
562 | }\r |
563 | \r |
564 | \r |
565 | int Pause_CDD_c6(void)\r |
566 | {\r |
567 | CHECK_TRAY_OPEN\r |
568 | CHECK_CD_PRESENT\r |
569 | \r |
570 | Pico_mcd->scd.Status_CDC &= ~1; // Stop CDC read to start a new one if raw data\r |
571 | \r |
572 | Pico_mcd->scd.Status_CDD = READY;\r |
573 | Pico_mcd->cdd.Status = Pico_mcd->scd.Status_CDD;\r |
574 | \r |
575 | Pico_mcd->s68k_regs[0x36] |= 0x01; // Data bit set because stopped\r |
576 | \r |
577 | Pico_mcd->cdd.Minute = 0;\r |
578 | Pico_mcd->cdd.Seconde = 0;\r |
579 | Pico_mcd->cdd.Frame = 0;\r |
580 | Pico_mcd->cdd.Ext = 0;\r |
581 | \r |
51a902ae |
582 | Pico_mcd->scd.CDD_Complete = 1;\r |
cc68a136 |
583 | \r |
584 | return 0;\r |
585 | }\r |
586 | \r |
587 | \r |
588 | int Resume_CDD_c7(void)\r |
589 | {\r |
590 | CHECK_TRAY_OPEN\r |
591 | CHECK_CD_PRESENT\r |
592 | \r |
593 | Pico_mcd->scd.Cur_Track = LBA_to_Track(Pico_mcd->scd.Cur_LBA);\r |
594 | \r |
595 | #ifdef DEBUG_CD\r |
596 | {\r |
597 | _msf MSF;\r |
598 | LBA_to_MSF(Pico_mcd->scd.Cur_LBA, &MSF);\r |
c459aefd |
599 | cdprintf("Resume read : Cur LBA = %d, M=%d, S=%d, F=%d", Pico_mcd->scd.Cur_LBA, MSF.M, MSF.S, MSF.F);\r |
cc68a136 |
600 | }\r |
601 | #endif\r |
602 | \r |
603 | Pico_mcd->scd.Status_CDD = PLAYING;\r |
604 | Pico_mcd->cdd.Status = 0x0102;\r |
605 | \r |
75736070 |
606 | if (Pico_mcd->scd.Cur_Track == 1)\r |
cc68a136 |
607 | {\r |
608 | Pico_mcd->s68k_regs[0x36] |= 0x01; // DATA\r |
609 | }\r |
610 | else\r |
611 | {\r |
612 | Pico_mcd->s68k_regs[0x36] &= ~0x01; // AUDIO\r |
613 | //CD_Audio_Starting = 1;\r |
cc68a136 |
614 | FILE_Play_CD_LBA();\r |
cc68a136 |
615 | }\r |
616 | \r |
617 | if (Pico_mcd->scd.Cur_Track == 100) Pico_mcd->cdd.Minute = 0x0A02;\r |
618 | else Pico_mcd->cdd.Minute = INT_TO_BCDW(Pico_mcd->scd.Cur_Track);\r |
619 | Pico_mcd->cdd.Seconde = 0;\r |
620 | Pico_mcd->cdd.Frame = 0;\r |
621 | Pico_mcd->cdd.Ext = 0;\r |
622 | \r |
623 | Pico_mcd->scd.Status_CDC |= 1; // Read data with CDC\r |
624 | \r |
51a902ae |
625 | Pico_mcd->scd.CDD_Complete = 1;\r |
cc68a136 |
626 | return 0;\r |
627 | }\r |
628 | \r |
629 | \r |
bf098bc5 |
630 | int Fast_Foward_CDD_c8(void)\r |
cc68a136 |
631 | {\r |
632 | CHECK_TRAY_OPEN\r |
633 | CHECK_CD_PRESENT\r |
634 | \r |
635 | Pico_mcd->scd.Status_CDC &= ~1; // Stop CDC read\r |
636 | \r |
637 | Pico_mcd->scd.Status_CDD = FAST_FOW;\r |
638 | Pico_mcd->cdd.Status = Pico_mcd->scd.Status_CDD | 2;\r |
639 | \r |
640 | Pico_mcd->cdd.Minute = INT_TO_BCDW(Pico_mcd->scd.Cur_Track);\r |
641 | Pico_mcd->cdd.Seconde = 0;\r |
642 | Pico_mcd->cdd.Frame = 0;\r |
643 | Pico_mcd->cdd.Ext = 0;\r |
644 | \r |
51a902ae |
645 | Pico_mcd->scd.CDD_Complete = 1;\r |
cc68a136 |
646 | \r |
647 | return 0;\r |
648 | }\r |
649 | \r |
650 | \r |
bf098bc5 |
651 | int Fast_Rewind_CDD_c9(void)\r |
cc68a136 |
652 | {\r |
653 | CHECK_TRAY_OPEN\r |
654 | CHECK_CD_PRESENT\r |
655 | \r |
656 | Pico_mcd->scd.Status_CDC &= ~1; // Stop CDC read\r |
657 | \r |
658 | Pico_mcd->scd.Status_CDD = FAST_REV;\r |
659 | Pico_mcd->cdd.Status = Pico_mcd->scd.Status_CDD | 2;\r |
660 | \r |
661 | Pico_mcd->cdd.Minute = INT_TO_BCDW(Pico_mcd->scd.Cur_Track);\r |
662 | Pico_mcd->cdd.Seconde = 0;\r |
663 | Pico_mcd->cdd.Frame = 0;\r |
664 | Pico_mcd->cdd.Ext = 0;\r |
665 | \r |
51a902ae |
666 | Pico_mcd->scd.CDD_Complete = 1;\r |
cc68a136 |
667 | \r |
668 | return 0;\r |
669 | }\r |
670 | \r |
671 | \r |
672 | int Close_Tray_CDD_cC(void)\r |
673 | {\r |
674 | //Clear_Sound_Buffer();\r |
675 | \r |
676 | Pico_mcd->scd.Status_CDC &= ~1; // Stop CDC read\r |
677 | \r |
678 | {\r |
679 | #if 0 // TODO\r |
680 | char new_iso[1024];\r |
681 | \r |
682 | memset(new_iso, 0, 1024);\r |
683 | \r |
684 | while (!Change_File_L(new_iso, Rom_Dir, "Load SegaCD image file", "SegaCD image file\0*.bin;*.iso;*.raw\0All files\0*.*\0\0", ""));\r |
685 | Reload_SegaCD(new_iso);\r |
686 | \r |
687 | CD_Present = 1;\r |
688 | #else\r |
689 | CD_Present = 0;\r |
690 | #endif\r |
691 | Pico_mcd->scd.Status_CDD = STOPPED;\r |
692 | Pico_mcd->cdd.Status = 0x0000;\r |
693 | \r |
694 | Pico_mcd->cdd.Minute = 0;\r |
695 | Pico_mcd->cdd.Seconde = 0;\r |
696 | Pico_mcd->cdd.Frame = 0;\r |
697 | Pico_mcd->cdd.Ext = 0;\r |
698 | }\r |
699 | \r |
51a902ae |
700 | Pico_mcd->scd.CDD_Complete = 1;\r |
cc68a136 |
701 | \r |
702 | return 0;\r |
703 | }\r |
704 | \r |
705 | \r |
706 | int Open_Tray_CDD_cD(void)\r |
707 | {\r |
708 | CHECK_TRAY_OPEN\r |
709 | \r |
710 | Pico_mcd->scd.Status_CDC &= ~1; // Stop CDC read\r |
711 | \r |
cc68a136 |
712 | Unload_ISO();\r |
cc68a136 |
713 | CD_Present = 0;\r |
714 | \r |
715 | Pico_mcd->scd.Status_CDD = TRAY_OPEN;\r |
716 | Pico_mcd->cdd.Status = 0x0E00;\r |
717 | \r |
718 | Pico_mcd->cdd.Minute = 0;\r |
719 | Pico_mcd->cdd.Seconde = 0;\r |
720 | Pico_mcd->cdd.Frame = 0;\r |
721 | Pico_mcd->cdd.Ext = 0;\r |
722 | \r |
51a902ae |
723 | Pico_mcd->scd.CDD_Complete = 1;\r |
cc68a136 |
724 | \r |
725 | return 0;\r |
726 | }\r |
727 | \r |
728 | \r |
729 | int CDD_cA(void)\r |
730 | {\r |
731 | CHECK_TRAY_OPEN\r |
732 | CHECK_CD_PRESENT\r |
733 | \r |
734 | Pico_mcd->scd.Status_CDC &= ~1;\r |
735 | \r |
736 | Pico_mcd->scd.Status_CDD = READY;\r |
737 | Pico_mcd->cdd.Status = Pico_mcd->scd.Status_CDD;\r |
738 | \r |
739 | Pico_mcd->cdd.Minute = 0;\r |
740 | Pico_mcd->cdd.Seconde = INT_TO_BCDW(1);\r |
741 | Pico_mcd->cdd.Frame = INT_TO_BCDW(1);\r |
742 | Pico_mcd->cdd.Ext = 0;\r |
743 | \r |
51a902ae |
744 | Pico_mcd->scd.CDD_Complete = 1;\r |
cc68a136 |
745 | \r |
746 | return 0;\r |
747 | }\r |
748 | \r |
749 | \r |
750 | int CDD_Def(void)\r |
751 | {\r |
752 | Pico_mcd->cdd.Status = Pico_mcd->scd.Status_CDD;\r |
753 | \r |
754 | Pico_mcd->cdd.Minute = 0;\r |
755 | Pico_mcd->cdd.Seconde = 0;\r |
756 | Pico_mcd->cdd.Frame = 0;\r |
757 | Pico_mcd->cdd.Ext = 0;\r |
758 | \r |
759 | return 0;\r |
760 | }\r |
761 | \r |
762 | \r |
763 | \r |
764 | \r |
765 | /***************************\r |
766 | * Others CD functions *\r |
767 | **************************/\r |
768 | \r |
769 | \r |
770 | // do we need them?\r |
771 | #if 0\r |
772 | void Write_CD_Audio(short *Buf, int rate, int channel, int lenght)\r |
773 | {\r |
774 | unsigned int lenght_src, lenght_dst;\r |
775 | unsigned int pos_src, pas_src;\r |
776 | \r |
777 | if (rate == 0) return;\r |
778 | if (Sound_Rate == 0) return;\r |
779 | \r |
780 | if (CD_Audio_Starting)\r |
781 | {\r |
782 | CD_Audio_Starting = 0;\r |
783 | memset(CD_Audio_Buffer_L, 0, 4096 * 4);\r |
784 | memset(CD_Audio_Buffer_R, 0, 4096 * 4);\r |
785 | CD_Audio_Buffer_Write_Pos = (CD_Audio_Buffer_Read_Pos + 2000) & 0xFFF;\r |
786 | }\r |
787 | \r |
788 | lenght_src = rate / 75; // 75th of a second\r |
789 | lenght_dst = Sound_Rate / 75; // 75th of a second\r |
790 | \r |
791 | pas_src = (lenght_src << 16) / lenght_dst;\r |
792 | pos_src = 0;\r |
793 | \r |
794 | #ifdef DEBUG_CD\r |
795 | fprintf(debug_SCD_file, "\n********* Write Pos = %d ", CD_Audio_Buffer_Write_Pos);\r |
796 | #endif\r |
797 | \r |
798 | if (channel == 2)\r |
799 | {\r |
800 | __asm\r |
801 | {\r |
802 | mov edi, CD_Audio_Buffer_Write_Pos\r |
803 | mov ebx, Buf\r |
804 | xor esi, esi\r |
805 | mov ecx, lenght_dst\r |
806 | xor eax, eax\r |
807 | mov edx, pas_src\r |
808 | dec ecx\r |
809 | jmp short loop_stereo\r |
810 | \r |
811 | align 16\r |
812 | \r |
813 | loop_stereo:\r |
814 | movsx eax, word ptr [ebx + esi * 4]\r |
815 | mov CD_Audio_Buffer_L[edi * 4], eax\r |
816 | movsx eax, word ptr [ebx + esi * 4 + 2]\r |
817 | mov CD_Audio_Buffer_R[edi * 4], eax\r |
818 | mov esi, dword ptr pos_src\r |
819 | inc edi\r |
820 | add esi, edx\r |
821 | and edi, 0xFFF\r |
822 | mov dword ptr pos_src, esi\r |
823 | shr esi, 16\r |
824 | dec ecx\r |
825 | jns short loop_stereo\r |
826 | \r |
827 | mov CD_Audio_Buffer_Write_Pos, edi\r |
828 | }\r |
829 | }\r |
830 | else\r |
831 | {\r |
832 | __asm\r |
833 | {\r |
834 | mov edi, CD_Audio_Buffer_Write_Pos\r |
835 | mov ebx, Buf\r |
836 | xor esi, esi\r |
837 | mov ecx, lenght_dst\r |
838 | xor eax, eax\r |
839 | mov edx, pas_src\r |
840 | dec ecx\r |
841 | jmp short loop_mono\r |
842 | \r |
843 | align 16\r |
844 | \r |
845 | loop_mono:\r |
846 | movsx eax, word ptr [ebx + esi * 2]\r |
847 | mov CD_Audio_Buffer_L[edi * 4], eax\r |
848 | mov CD_Audio_Buffer_R[edi * 4], eax\r |
849 | mov esi, dword ptr pos_src\r |
850 | inc edi\r |
851 | add esi, edx\r |
852 | and edi, 0xFFF\r |
853 | mov dword ptr pos_src, esi\r |
854 | shr esi, 16\r |
855 | dec ecx\r |
856 | jns short loop_mono\r |
857 | \r |
858 | mov CD_Audio_Buffer_Write_Pos, edi\r |
859 | }\r |
860 | }\r |
861 | \r |
862 | #ifdef DEBUG_CD\r |
863 | fprintf(debug_SCD_file, "Write Pos 2 = %d\n\n", CD_Audio_Buffer_Write_Pos);\r |
864 | #endif\r |
865 | }\r |
866 | \r |
867 | \r |
868 | void Update_CD_Audio(int **buf, int lenght)\r |
869 | {\r |
870 | int *Buf_L, *Buf_R;\r |
871 | int diff;\r |
872 | \r |
873 | Buf_L = buf[0];\r |
874 | Buf_R = buf[1];\r |
875 | \r |
876 | if (Pico_mcd->s68k_regs[0x36] & 0x01) return;\r |
877 | if (!(Pico_mcd->scd.Status_CDC & 1)) return;\r |
878 | if (CD_Audio_Starting) return;\r |
879 | \r |
880 | #ifdef DEBUG_CD\r |
881 | fprintf(debug_SCD_file, "\n********* Read Pos Normal = %d ", CD_Audio_Buffer_Read_Pos);\r |
882 | #endif\r |
883 | \r |
884 | if (CD_Audio_Buffer_Write_Pos < CD_Audio_Buffer_Read_Pos)\r |
885 | {\r |
886 | diff = CD_Audio_Buffer_Write_Pos + (4096) - CD_Audio_Buffer_Read_Pos;\r |
887 | }\r |
888 | else\r |
889 | {\r |
890 | diff = CD_Audio_Buffer_Write_Pos - CD_Audio_Buffer_Read_Pos;\r |
891 | }\r |
892 | \r |
893 | if (diff < 500) CD_Audio_Buffer_Read_Pos -= 2000;\r |
894 | else if (diff > 3500) CD_Audio_Buffer_Read_Pos += 2000;\r |
895 | \r |
896 | #ifdef DEBUG_CD\r |
897 | else fprintf(debug_SCD_file, " pas de modifs ");\r |
898 | #endif\r |
899 | \r |
900 | CD_Audio_Buffer_Read_Pos &= 0xFFF;\r |
901 | \r |
902 | #ifdef DEBUG_CD\r |
903 | fprintf(debug_SCD_file, "Read Pos = %d ", CD_Audio_Buffer_Read_Pos);\r |
904 | #endif\r |
905 | \r |
906 | if (CDDA_Enable)\r |
907 | {\r |
908 | __asm\r |
909 | {\r |
910 | mov ecx, lenght\r |
911 | mov esi, CD_Audio_Buffer_Read_Pos\r |
912 | mov edi, Buf_L\r |
913 | dec ecx\r |
914 | \r |
915 | loop_L:\r |
916 | mov eax, CD_Audio_Buffer_L[esi * 4]\r |
917 | add [edi], eax\r |
918 | inc esi\r |
919 | add edi, 4\r |
920 | and esi, 0xFFF\r |
921 | dec ecx\r |
922 | jns short loop_L\r |
923 | \r |
924 | mov ecx, lenght\r |
925 | mov esi, CD_Audio_Buffer_Read_Pos\r |
926 | mov edi, Buf_R\r |
927 | dec ecx\r |
928 | \r |
929 | loop_R:\r |
930 | mov eax, CD_Audio_Buffer_R[esi * 4]\r |
931 | add [edi], eax\r |
932 | inc esi\r |
933 | add edi, 4\r |
934 | and esi, 0xFFF\r |
935 | dec ecx\r |
936 | jns short loop_R\r |
937 | \r |
938 | mov CD_Audio_Buffer_Read_Pos, esi\r |
939 | }\r |
940 | }\r |
941 | else\r |
942 | {\r |
943 | CD_Audio_Buffer_Read_Pos += lenght;\r |
944 | CD_Audio_Buffer_Read_Pos &= 0xFFF;\r |
945 | }\r |
946 | \r |
947 | #ifdef DEBUG_CD\r |
948 | fprintf(debug_SCD_file, "Read Pos 2 = %d\n\n", CD_Audio_Buffer_Read_Pos);\r |
949 | #endif\r |
950 | }\r |
951 | #endif\r |
952 | \r |