| 1 | #include <stdio.h>\r |
| 2 | #include "cd_sys.h"\r |
| 3 | #include "cd_file.h"\r |
| 4 | \r |
| 5 | #include "../PicoInt.h"\r |
| 6 | \r |
| 7 | #define cdprintf dprintf\r |
| 8 | //#define cdprintf(x...)\r |
| 9 | #define DEBUG_CD\r |
| 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 |
| 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 |
| 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 |
| 157 | cdprintf("CHECK CD COMMAND");\r |
| 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 |
| 172 | cdprintf("Got a read command");\r |
| 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 |
| 181 | FILE_Read_One_LBA_CDC();\r |
| 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 |
| 203 | FILE_Init();\r |
| 204 | \r |
| 205 | return 0;\r |
| 206 | }\r |
| 207 | \r |
| 208 | \r |
| 209 | void End_CD_Driver(void)\r |
| 210 | {\r |
| 211 | FILE_End();\r |
| 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 |
| 224 | int Insert_CD(char *iso_name, int is_bin)\r |
| 225 | {\r |
| 226 | int ret = 0;\r |
| 227 | \r |
| 228 | // memset(CD_Audio_Buffer_L, 0, 4096 * 4);\r |
| 229 | // memset(CD_Audio_Buffer_R, 0, 4096 * 4);\r |
| 230 | \r |
| 231 | CD_Present = 0;\r |
| 232 | \r |
| 233 | if (iso_name != NULL)\r |
| 234 | {\r |
| 235 | ret = Load_ISO(iso_name, is_bin);\r |
| 236 | if (ret == 0)\r |
| 237 | CD_Present = 1;\r |
| 238 | }\r |
| 239 | \r |
| 240 | return ret;\r |
| 241 | }\r |
| 242 | \r |
| 243 | \r |
| 244 | void Stop_CD(void)\r |
| 245 | {\r |
| 246 | Unload_ISO();\r |
| 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 |
| 260 | cdprintf("Status command : Cur LBA = %d", Pico_mcd->scd.Cur_LBA);\r |
| 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 |
| 303 | cdprintf("command 200 : Cur LBA = %d", Pico_mcd->scd.Cur_LBA);\r |
| 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 |
| 316 | cdprintf("Status CDD = %.4X Status = %.4X", Pico_mcd->scd.Status_CDD, Pico_mcd->cdd.Status);\r |
| 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 |
| 352 | cdprintf(" elapsed = %d", elapsed_time);\r |
| 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 |
| 367 | cdprintf("Status CDD = %.4X Status = %.4X", Pico_mcd->scd.Status_CDD, Pico_mcd->cdd.Status);\r |
| 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 |
| 416 | //Pico_mcd->cdd.Seconde = 2;\r |
| 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 |
| 442 | //Pico_mcd->cdd.Minute = Pico_mcd->cdd.Seconde = 1;\r |
| 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 |
| 508 | cdprintf("Read : Cur LBA = %d, M=%d, S=%d, F=%d", Pico_mcd->scd.Cur_LBA, MSF.M, MSF.S, MSF.F);\r |
| 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 |
| 526 | FILE_Play_CD_LBA();\r |
| 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 |
| 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 |
| 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 |
| 629 | FILE_Play_CD_LBA();\r |
| 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 |
| 645 | int Fast_Foward_CDD_c8(void)\r |
| 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 |
| 666 | int Fast_Rewind_CDD_c9(void)\r |
| 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 |
| 727 | Unload_ISO();\r |
| 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 |