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