3 //#include "cd_file.h"
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5 #include "../PicoInt.h"
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7 #define cdprintf printf
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8 //#define cdprintf(x...)
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10 #define TRAY_OPEN 0x0500 // TRAY OPEN CDD status
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11 #define NOCD 0x0000 // CD removed CDD status
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12 #define STOPPED 0x0900 // STOPPED CDD status (happen after stop or close tray command)
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13 #define READY 0x0400 // READY CDD status (also used for seeking)
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14 #define FAST_FOW 0x0300 // FAST FORWARD track CDD status
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15 #define FAST_REV 0x10300 // FAST REVERSE track CDD status
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16 #define PLAYING 0x0100 // PLAYING audio track CDD status
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20 #include "G_dsound.h"
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21 #include "cdda_mp3.h"
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22 #include "lc89510.h"
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23 #include "Star_68k.h"
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24 #include "Mem_M68K.h"
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25 #include "Mem_S68K.h"
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34 int CD_Audio_Buffer_L[8192];
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35 int CD_Audio_Buffer_R[8192];
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36 int CD_Audio_Buffer_Read_Pos = 0;
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37 int CD_Audio_Buffer_Write_Pos = 2000;
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38 int CD_Audio_Starting;
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41 static int CD_Present = 0;
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42 int CD_Timer_Counter = 0; // TODO: check refs
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44 static int CDD_Complete;
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46 static int File_Add_Delay = 0;
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52 #define CHECK_TRAY_OPEN \
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53 if (Pico_mcd->scd.Status_CDD == TRAY_OPEN) \
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55 Pico_mcd->cdd.Status = Pico_mcd->scd.Status_CDD; \
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57 Pico_mcd->cdd.Minute = 0; \
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58 Pico_mcd->cdd.Seconde = 0; \
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59 Pico_mcd->cdd.Frame = 0; \
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60 Pico_mcd->cdd.Ext = 0; \
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68 #define CHECK_CD_PRESENT \
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71 Pico_mcd->scd.Status_CDD = NOCD; \
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72 Pico_mcd->cdd.Status = Pico_mcd->scd.Status_CDD; \
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74 Pico_mcd->cdd.Minute = 0; \
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75 Pico_mcd->cdd.Seconde = 0; \
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76 Pico_mcd->cdd.Frame = 0; \
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77 Pico_mcd->cdd.Ext = 0; \
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86 static void MSB2DWORD(unsigned int *d, unsigned char *b)
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88 unsigned int retVal;
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90 retVal = (unsigned int )b[0];
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91 retVal = (retVal<<8) + (unsigned int )b[1];
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92 retVal = (retVal<<8) + (unsigned int )b[2];
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93 retVal = (retVal<<8) + (unsigned int )b[3];
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99 static int MSF_to_LBA(_msf *MSF)
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101 return (MSF->M * 60 * 75) + (MSF->S * 75) + MSF->F - 150;
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105 void LBA_to_MSF(int lba, _msf *MSF)
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107 if (lba < -150) lba = 0;
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109 MSF->M = lba / (60 * 75);
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110 MSF->S = (lba / 75) % 60;
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115 static unsigned int MSF_to_Track(_msf *MSF)
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119 Start = (MSF->M << 16) + (MSF->S << 8) + MSF->F;
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121 for(i = Pico_mcd->scd.TOC.First_Track; i <= (Pico_mcd->scd.TOC.Last_Track + 1); i++)
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123 Cur = Pico_mcd->scd.TOC.Tracks[i - Pico_mcd->scd.TOC.First_Track].MSF.M << 16;
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124 Cur += Pico_mcd->scd.TOC.Tracks[i - Pico_mcd->scd.TOC.First_Track].MSF.S << 8;
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125 Cur += Pico_mcd->scd.TOC.Tracks[i - Pico_mcd->scd.TOC.First_Track].MSF.F;
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127 if (Cur > Start) break;
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132 if (i > Pico_mcd->scd.TOC.Last_Track) return 100;
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133 if (i < Pico_mcd->scd.TOC.First_Track) i = Pico_mcd->scd.TOC.First_Track;
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135 return (unsigned) i;
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139 static unsigned int LBA_to_Track(int lba)
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143 LBA_to_MSF(lba, &MSF);
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144 return MSF_to_Track(&MSF);
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148 static void Track_to_MSF(int track, _msf *MSF)
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150 if (track < Pico_mcd->scd.TOC.First_Track) track = Pico_mcd->scd.TOC.First_Track;
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151 else if (track > Pico_mcd->scd.TOC.Last_Track) track = Pico_mcd->scd.TOC.Last_Track;
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153 MSF->M = Pico_mcd->scd.TOC.Tracks[track - Pico_mcd->scd.TOC.First_Track].MSF.M;
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154 MSF->S = Pico_mcd->scd.TOC.Tracks[track - Pico_mcd->scd.TOC.First_Track].MSF.S;
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155 MSF->F = Pico_mcd->scd.TOC.Tracks[track - Pico_mcd->scd.TOC.First_Track].MSF.F;
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159 int Track_to_LBA(int track)
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163 Track_to_MSF(track, &MSF);
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164 return MSF_to_LBA(&MSF);
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168 void Check_CD_Command(void)
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170 cdprintf("CHECK CD COMMAND\n");
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178 CDD_Export_Status();
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183 if (Pico_mcd->scd.Status_CDC & 1) // CDC is reading data ...
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185 cdprintf("Sending a read command\n");
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188 if (Pico_mcd->scd.TOC.Tracks[Pico_mcd->scd.Cur_Track - Pico_mcd->scd.TOC.First_Track].Type)
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189 Pico_mcd->s68k_regs[0x36] |= 0x01;
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190 else Pico_mcd->s68k_regs[0x36] &= ~0x01; // AUDIO
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192 if (File_Add_Delay == 0)
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195 FILE_Read_One_LBA_CDC();
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198 else File_Add_Delay--;
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201 if (Pico_mcd->scd.Status_CDD == FAST_FOW)
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203 Pico_mcd->scd.Cur_LBA += 10;
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204 CDC_Update_Header();
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207 else if (Pico_mcd->scd.Status_CDD == FAST_REV)
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209 Pico_mcd->scd.Cur_LBA -= 10;
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210 if (Pico_mcd->scd.Cur_LBA < -150) Pico_mcd->scd.Cur_LBA = -150;
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211 CDC_Update_Header();
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216 int Init_CD_Driver(void)
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226 void End_CD_Driver(void)
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234 void Reset_CD(void)
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236 Pico_mcd->scd.Cur_Track = 0;
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237 Pico_mcd->scd.Cur_LBA = -150;
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238 Pico_mcd->scd.Status_CDD = READY;
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243 int Insert_CD(char *buf, char *iso_name)
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245 // memset(CD_Audio_Buffer_L, 0, 4096 * 4);
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246 // memset(CD_Audio_Buffer_R, 0, 4096 * 4);
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248 if (iso_name == NULL)
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255 Load_ISO(buf, iso_name);
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274 void Change_CD(void)
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276 if (Pico_mcd->scd.Status_CDD == TRAY_OPEN) Close_Tray_CDD_cC();
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277 else Open_Tray_CDD_cD();
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281 int Get_Status_CDD_c0(void)
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283 cdprintf("Status command : Cur LBA = %d\n", Pico_mcd->scd.Cur_LBA);
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285 // Clear immediat status
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286 if ((Pico_mcd->cdd.Status & 0x0F00) == 0x0200)
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287 Pico_mcd->cdd.Status = (Pico_mcd->scd.Status_CDD & 0xFF00) | (Pico_mcd->cdd.Status & 0x00FF);
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288 else if ((Pico_mcd->cdd.Status & 0x0F00) == 0x0700)
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289 Pico_mcd->cdd.Status = (Pico_mcd->scd.Status_CDD & 0xFF00) | (Pico_mcd->cdd.Status & 0x00FF);
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290 else if ((Pico_mcd->cdd.Status & 0x0F00) == 0x0E00)
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291 Pico_mcd->cdd.Status = (Pico_mcd->scd.Status_CDD & 0xFF00) | (Pico_mcd->cdd.Status & 0x00FF);
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299 int Stop_CDD_c1(void)
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303 Pico_mcd->scd.Status_CDC &= ~1; // Stop CDC read
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305 if (CD_Present) Pico_mcd->scd.Status_CDD = STOPPED;
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306 else Pico_mcd->scd.Status_CDD = NOCD;
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307 Pico_mcd->cdd.Status = 0x0000;
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309 Pico_mcd->s68k_regs[0x36] |= 0x01; // Data bit set because stopped
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311 Pico_mcd->cdd.Minute = 0;
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312 Pico_mcd->cdd.Seconde = 0;
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313 Pico_mcd->cdd.Frame = 0;
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314 Pico_mcd->cdd.Ext = 0;
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322 int Get_Pos_CDD_c20(void)
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326 cdprintf("command 200 : Cur LBA = %d\n", Pico_mcd->scd.Cur_LBA);
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330 Pico_mcd->cdd.Status &= 0xFF;
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333 Pico_mcd->scd.Status_CDD = NOCD;
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334 Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;
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336 // else if (!(CDC.CTRL.B.B0 & 0x80)) Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;
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337 Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;
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339 cdprintf("Status CDD = %.4X Status = %.4X\n", Pico_mcd->scd.Status_CDD, Pico_mcd->cdd.Status);
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341 LBA_to_MSF(Pico_mcd->scd.Cur_LBA, &MSF);
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343 Pico_mcd->cdd.Minute = INT_TO_BCDW(MSF.M);
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344 Pico_mcd->cdd.Seconde = INT_TO_BCDW(MSF.S);
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345 Pico_mcd->cdd.Frame = INT_TO_BCDW(MSF.F);
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346 Pico_mcd->cdd.Ext = 0;
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354 int Get_Track_Pos_CDD_c21(void)
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359 cdprintf("command 201 : Cur LBA = %d", Pico_mcd->scd.Cur_LBA);
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363 Pico_mcd->cdd.Status &= 0xFF;
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366 Pico_mcd->scd.Status_CDD = NOCD;
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367 Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;
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369 // else if (!(CDC.CTRL.B.B0 & 0x80)) Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;
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370 Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;
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372 elapsed_time = Pico_mcd->scd.Cur_LBA - Track_to_LBA(LBA_to_Track(Pico_mcd->scd.Cur_LBA));
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373 LBA_to_MSF(elapsed_time - 150, &MSF);
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375 cdprintf(" elapsed = %d\n", elapsed_time);
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377 Pico_mcd->cdd.Minute = INT_TO_BCDW(MSF.M);
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378 Pico_mcd->cdd.Seconde = INT_TO_BCDW(MSF.S);
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379 Pico_mcd->cdd.Frame = INT_TO_BCDW(MSF.F);
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380 Pico_mcd->cdd.Ext = 0;
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388 int Get_Current_Track_CDD_c22(void)
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390 cdprintf("Status CDD = %.4X Status = %.4X\n", Pico_mcd->scd.Status_CDD, Pico_mcd->cdd.Status);
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394 Pico_mcd->cdd.Status &= 0xFF;
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397 Pico_mcd->scd.Status_CDD = NOCD;
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398 Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;
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400 // else if (!(CDC.CTRL.B.B0 & 0x80)) Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;
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401 Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;
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403 Pico_mcd->scd.Cur_Track = LBA_to_Track(Pico_mcd->scd.Cur_LBA);
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405 if (Pico_mcd->scd.Cur_Track == 100) Pico_mcd->cdd.Minute = 0x0A02;
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406 else Pico_mcd->cdd.Minute = INT_TO_BCDW(Pico_mcd->scd.Cur_Track);
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407 Pico_mcd->cdd.Seconde = 0;
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408 Pico_mcd->cdd.Frame = 0;
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409 Pico_mcd->cdd.Ext = 0;
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417 int Get_Total_Lenght_CDD_c23(void)
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421 Pico_mcd->cdd.Status &= 0xFF;
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424 Pico_mcd->scd.Status_CDD = NOCD;
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425 Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;
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427 // else if (!(CDC.CTRL.B.B0 & 0x80)) Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;
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428 Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;
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430 Pico_mcd->cdd.Minute = INT_TO_BCDW(Pico_mcd->scd.TOC.Tracks[Pico_mcd->scd.TOC.Last_Track -
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431 Pico_mcd->scd.TOC.First_Track + 1].MSF.M);
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432 Pico_mcd->cdd.Seconde = INT_TO_BCDW(Pico_mcd->scd.TOC.Tracks[Pico_mcd->scd.TOC.Last_Track -
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433 Pico_mcd->scd.TOC.First_Track + 1].MSF.S);
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434 Pico_mcd->cdd.Frame = INT_TO_BCDW(Pico_mcd->scd.TOC.Tracks[Pico_mcd->scd.TOC.Last_Track -
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435 Pico_mcd->scd.TOC.First_Track + 1].MSF.F);
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436 Pico_mcd->cdd.Ext = 0;
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439 Pico_mcd->cdd.Seconde = 2;
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447 int Get_First_Last_Track_CDD_c24(void)
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451 Pico_mcd->cdd.Status &= 0xFF;
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454 Pico_mcd->scd.Status_CDD = NOCD;
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456 // else if (!(CDC.CTRL.B.B0 & 0x80)) Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;
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457 Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;
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459 Pico_mcd->cdd.Minute = INT_TO_BCDW(Pico_mcd->scd.TOC.First_Track);
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460 Pico_mcd->cdd.Seconde = INT_TO_BCDW(Pico_mcd->scd.TOC.Last_Track);
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461 Pico_mcd->cdd.Frame = 0;
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462 Pico_mcd->cdd.Ext = 0;
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465 Pico_mcd->cdd.Minute = Pico_mcd->cdd.Seconde = 1;
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473 int Get_Track_Adr_CDD_c25(void)
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479 // track number in TC4 & TC5
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481 track_number = (Pico_mcd->s68k_regs[0x38+10+4] & 0xF) * 10 + (Pico_mcd->s68k_regs[0x38+10+5] & 0xF);
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483 Pico_mcd->cdd.Status &= 0xFF;
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486 Pico_mcd->scd.Status_CDD = NOCD;
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487 Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;
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489 // else if (!(CDC.CTRL.B.B0 & 0x80)) Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;
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490 Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;
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492 if (track_number > Pico_mcd->scd.TOC.Last_Track) track_number = Pico_mcd->scd.TOC.Last_Track;
\r
493 else if (track_number < Pico_mcd->scd.TOC.First_Track) track_number = Pico_mcd->scd.TOC.First_Track;
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495 Pico_mcd->cdd.Minute = INT_TO_BCDW(Pico_mcd->scd.TOC.Tracks[track_number - Pico_mcd->scd.TOC.First_Track].MSF.M);
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496 Pico_mcd->cdd.Seconde = INT_TO_BCDW(Pico_mcd->scd.TOC.Tracks[track_number - Pico_mcd->scd.TOC.First_Track].MSF.S);
\r
497 Pico_mcd->cdd.Frame = INT_TO_BCDW(Pico_mcd->scd.TOC.Tracks[track_number - Pico_mcd->scd.TOC.First_Track].MSF.F);
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498 Pico_mcd->cdd.Ext = track_number % 10;
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500 if (Pico_mcd->scd.TOC.Tracks[track_number - Pico_mcd->scd.TOC.First_Track].Type) Pico_mcd->cdd.Frame |= 0x0800;
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507 int Play_CDD_c3(void)
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510 int delay, new_lba;
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515 // MSF of the track to play in TC buffer
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517 MSF.M = (Pico_mcd->s68k_regs[0x38+10+2] & 0xF) * 10 + (Pico_mcd->s68k_regs[0x38+10+3] & 0xF);
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518 MSF.S = (Pico_mcd->s68k_regs[0x38+10+4] & 0xF) * 10 + (Pico_mcd->s68k_regs[0x38+10+5] & 0xF);
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519 MSF.F = (Pico_mcd->s68k_regs[0x38+10+6] & 0xF) * 10 + (Pico_mcd->s68k_regs[0x38+10+7] & 0xF);
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521 Pico_mcd->scd.Cur_Track = MSF_to_Track(&MSF);
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523 new_lba = MSF_to_LBA(&MSF);
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524 delay = new_lba - Pico_mcd->scd.Cur_LBA;
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525 if (delay < 0) delay = -delay;
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528 Pico_mcd->scd.Cur_LBA = new_lba;
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529 CDC_Update_Header();
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531 cdprintf("Read : Cur LBA = %d, M=%d, S=%d, F=%d\n", Pico_mcd->scd.Cur_LBA, MSF.M, MSF.S, MSF.F);
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533 if (Pico_mcd->scd.Status_CDD != PLAYING) delay += 20;
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535 Pico_mcd->scd.Status_CDD = PLAYING;
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536 Pico_mcd->cdd.Status = 0x0102;
\r
537 // Pico_mcd->cdd.Status = COMM_OK;
\r
539 if (File_Add_Delay == 0) File_Add_Delay = delay;
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541 if (Pico_mcd->scd.TOC.Tracks[Pico_mcd->scd.Cur_Track - Pico_mcd->scd.TOC.First_Track].Type)
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543 Pico_mcd->s68k_regs[0x36] |= 0x01; // DATA
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547 Pico_mcd->s68k_regs[0x36] &= ~0x01; // AUDIO
\r
548 //CD_Audio_Starting = 1;
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550 FILE_Play_CD_LBA();
\r
554 if (Pico_mcd->scd.Cur_Track == 100) Pico_mcd->cdd.Minute = 0x0A02;
\r
555 else Pico_mcd->cdd.Minute = INT_TO_BCDW(Pico_mcd->scd.Cur_Track);
\r
556 Pico_mcd->cdd.Seconde = 0;
\r
557 Pico_mcd->cdd.Frame = 0;
\r
558 Pico_mcd->cdd.Ext = 0;
\r
560 Pico_mcd->scd.Status_CDC |= 1; // Read data with CDC
\r
567 int Seek_CDD_c4(void)
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574 // MSF to seek in TC buffer
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576 MSF.M = (Pico_mcd->s68k_regs[0x38+10+2] & 0xF) * 10 + (Pico_mcd->s68k_regs[0x38+10+3] & 0xF);
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577 MSF.S = (Pico_mcd->s68k_regs[0x38+10+4] & 0xF) * 10 + (Pico_mcd->s68k_regs[0x38+10+5] & 0xF);
\r
578 MSF.F = (Pico_mcd->s68k_regs[0x38+10+6] & 0xF) * 10 + (Pico_mcd->s68k_regs[0x38+10+7] & 0xF);
\r
580 Pico_mcd->scd.Cur_Track = MSF_to_Track(&MSF);
\r
581 Pico_mcd->scd.Cur_LBA = MSF_to_LBA(&MSF);
\r
582 CDC_Update_Header();
\r
584 Pico_mcd->scd.Status_CDC &= ~1; // Stop CDC read
\r
586 Pico_mcd->scd.Status_CDD = READY;
\r
587 Pico_mcd->cdd.Status = 0x0200;
\r
590 if (Pico_mcd->scd.TOC.Tracks[Pico_mcd->scd.Cur_Track - Pico_mcd->scd.TOC.First_Track].Type)
\r
591 Pico_mcd->s68k_regs[0x36] |= 0x01;
\r
592 else Pico_mcd->s68k_regs[0x36] &= ~0x01; // AUDIO
\r
594 Pico_mcd->cdd.Minute = 0;
\r
595 Pico_mcd->cdd.Seconde = 0;
\r
596 Pico_mcd->cdd.Frame = 0;
\r
597 Pico_mcd->cdd.Ext = 0;
\r
605 int Pause_CDD_c6(void)
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610 Pico_mcd->scd.Status_CDC &= ~1; // Stop CDC read to start a new one if raw data
\r
612 Pico_mcd->scd.Status_CDD = READY;
\r
613 Pico_mcd->cdd.Status = Pico_mcd->scd.Status_CDD;
\r
615 Pico_mcd->s68k_regs[0x36] |= 0x01; // Data bit set because stopped
\r
617 Pico_mcd->cdd.Minute = 0;
\r
618 Pico_mcd->cdd.Seconde = 0;
\r
619 Pico_mcd->cdd.Frame = 0;
\r
620 Pico_mcd->cdd.Ext = 0;
\r
628 int Resume_CDD_c7(void)
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633 Pico_mcd->scd.Cur_Track = LBA_to_Track(Pico_mcd->scd.Cur_LBA);
\r
638 LBA_to_MSF(Pico_mcd->scd.Cur_LBA, &MSF);
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639 cdprintf("Resume read : Cur LBA = %d, M=%d, S=%d, F=%d\n", Pico_mcd->scd.Cur_LBA, MSF.M, MSF.S, MSF.F);
\r
643 Pico_mcd->scd.Status_CDD = PLAYING;
\r
644 Pico_mcd->cdd.Status = 0x0102;
\r
646 if (Pico_mcd->scd.TOC.Tracks[Pico_mcd->scd.Cur_Track - Pico_mcd->scd.TOC.First_Track].Type)
\r
648 Pico_mcd->s68k_regs[0x36] |= 0x01; // DATA
\r
652 Pico_mcd->s68k_regs[0x36] &= ~0x01; // AUDIO
\r
653 //CD_Audio_Starting = 1;
\r
655 FILE_Play_CD_LBA();
\r
659 if (Pico_mcd->scd.Cur_Track == 100) Pico_mcd->cdd.Minute = 0x0A02;
\r
660 else Pico_mcd->cdd.Minute = INT_TO_BCDW(Pico_mcd->scd.Cur_Track);
\r
661 Pico_mcd->cdd.Seconde = 0;
\r
662 Pico_mcd->cdd.Frame = 0;
\r
663 Pico_mcd->cdd.Ext = 0;
\r
665 Pico_mcd->scd.Status_CDC |= 1; // Read data with CDC
\r
672 int Fast_Foward_CDD_c8(void)
\r
677 Pico_mcd->scd.Status_CDC &= ~1; // Stop CDC read
\r
679 Pico_mcd->scd.Status_CDD = FAST_FOW;
\r
680 Pico_mcd->cdd.Status = Pico_mcd->scd.Status_CDD | 2;
\r
682 Pico_mcd->cdd.Minute = INT_TO_BCDW(Pico_mcd->scd.Cur_Track);
\r
683 Pico_mcd->cdd.Seconde = 0;
\r
684 Pico_mcd->cdd.Frame = 0;
\r
685 Pico_mcd->cdd.Ext = 0;
\r
693 int Fast_Rewind_CDD_c9(void)
\r
698 Pico_mcd->scd.Status_CDC &= ~1; // Stop CDC read
\r
700 Pico_mcd->scd.Status_CDD = FAST_REV;
\r
701 Pico_mcd->cdd.Status = Pico_mcd->scd.Status_CDD | 2;
\r
703 Pico_mcd->cdd.Minute = INT_TO_BCDW(Pico_mcd->scd.Cur_Track);
\r
704 Pico_mcd->cdd.Seconde = 0;
\r
705 Pico_mcd->cdd.Frame = 0;
\r
706 Pico_mcd->cdd.Ext = 0;
\r
714 int Close_Tray_CDD_cC(void)
\r
716 //Clear_Sound_Buffer();
\r
718 Pico_mcd->scd.Status_CDC &= ~1; // Stop CDC read
\r
722 char new_iso[1024];
\r
724 memset(new_iso, 0, 1024);
\r
726 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
727 Reload_SegaCD(new_iso);
\r
733 Pico_mcd->scd.Status_CDD = STOPPED;
\r
734 Pico_mcd->cdd.Status = 0x0000;
\r
736 Pico_mcd->cdd.Minute = 0;
\r
737 Pico_mcd->cdd.Seconde = 0;
\r
738 Pico_mcd->cdd.Frame = 0;
\r
739 Pico_mcd->cdd.Ext = 0;
\r
748 int Open_Tray_CDD_cD(void)
\r
752 Pico_mcd->scd.Status_CDC &= ~1; // Stop CDC read
\r
759 Pico_mcd->scd.Status_CDD = TRAY_OPEN;
\r
760 Pico_mcd->cdd.Status = 0x0E00;
\r
762 Pico_mcd->cdd.Minute = 0;
\r
763 Pico_mcd->cdd.Seconde = 0;
\r
764 Pico_mcd->cdd.Frame = 0;
\r
765 Pico_mcd->cdd.Ext = 0;
\r
778 Pico_mcd->scd.Status_CDC &= ~1;
\r
780 Pico_mcd->scd.Status_CDD = READY;
\r
781 Pico_mcd->cdd.Status = Pico_mcd->scd.Status_CDD;
\r
783 Pico_mcd->cdd.Minute = 0;
\r
784 Pico_mcd->cdd.Seconde = INT_TO_BCDW(1);
\r
785 Pico_mcd->cdd.Frame = INT_TO_BCDW(1);
\r
786 Pico_mcd->cdd.Ext = 0;
\r
796 Pico_mcd->cdd.Status = Pico_mcd->scd.Status_CDD;
\r
798 Pico_mcd->cdd.Minute = 0;
\r
799 Pico_mcd->cdd.Seconde = 0;
\r
800 Pico_mcd->cdd.Frame = 0;
\r
801 Pico_mcd->cdd.Ext = 0;
\r
809 /***************************
\r
810 * Others CD functions *
\r
811 **************************/
\r
814 // do we need them?
\r
816 void Write_CD_Audio(short *Buf, int rate, int channel, int lenght)
\r
818 unsigned int lenght_src, lenght_dst;
\r
819 unsigned int pos_src, pas_src;
\r
821 if (rate == 0) return;
\r
822 if (Sound_Rate == 0) return;
\r
824 if (CD_Audio_Starting)
\r
826 CD_Audio_Starting = 0;
\r
827 memset(CD_Audio_Buffer_L, 0, 4096 * 4);
\r
828 memset(CD_Audio_Buffer_R, 0, 4096 * 4);
\r
829 CD_Audio_Buffer_Write_Pos = (CD_Audio_Buffer_Read_Pos + 2000) & 0xFFF;
\r
832 lenght_src = rate / 75; // 75th of a second
\r
833 lenght_dst = Sound_Rate / 75; // 75th of a second
\r
835 pas_src = (lenght_src << 16) / lenght_dst;
\r
839 fprintf(debug_SCD_file, "\n********* Write Pos = %d ", CD_Audio_Buffer_Write_Pos);
\r
846 mov edi, CD_Audio_Buffer_Write_Pos
\r
849 mov ecx, lenght_dst
\r
853 jmp short loop_stereo
\r
858 movsx eax, word ptr [ebx + esi * 4]
\r
859 mov CD_Audio_Buffer_L[edi * 4], eax
\r
860 movsx eax, word ptr [ebx + esi * 4 + 2]
\r
861 mov CD_Audio_Buffer_R[edi * 4], eax
\r
862 mov esi, dword ptr pos_src
\r
866 mov dword ptr pos_src, esi
\r
869 jns short loop_stereo
\r
871 mov CD_Audio_Buffer_Write_Pos, edi
\r
878 mov edi, CD_Audio_Buffer_Write_Pos
\r
881 mov ecx, lenght_dst
\r
885 jmp short loop_mono
\r
890 movsx eax, word ptr [ebx + esi * 2]
\r
891 mov CD_Audio_Buffer_L[edi * 4], eax
\r
892 mov CD_Audio_Buffer_R[edi * 4], eax
\r
893 mov esi, dword ptr pos_src
\r
897 mov dword ptr pos_src, esi
\r
900 jns short loop_mono
\r
902 mov CD_Audio_Buffer_Write_Pos, edi
\r
907 fprintf(debug_SCD_file, "Write Pos 2 = %d\n\n", CD_Audio_Buffer_Write_Pos);
\r
912 void Update_CD_Audio(int **buf, int lenght)
\r
914 int *Buf_L, *Buf_R;
\r
920 if (Pico_mcd->s68k_regs[0x36] & 0x01) return;
\r
921 if (!(Pico_mcd->scd.Status_CDC & 1)) return;
\r
922 if (CD_Audio_Starting) return;
\r
925 fprintf(debug_SCD_file, "\n********* Read Pos Normal = %d ", CD_Audio_Buffer_Read_Pos);
\r
928 if (CD_Audio_Buffer_Write_Pos < CD_Audio_Buffer_Read_Pos)
\r
930 diff = CD_Audio_Buffer_Write_Pos + (4096) - CD_Audio_Buffer_Read_Pos;
\r
934 diff = CD_Audio_Buffer_Write_Pos - CD_Audio_Buffer_Read_Pos;
\r
937 if (diff < 500) CD_Audio_Buffer_Read_Pos -= 2000;
\r
938 else if (diff > 3500) CD_Audio_Buffer_Read_Pos += 2000;
\r
941 else fprintf(debug_SCD_file, " pas de modifs ");
\r
944 CD_Audio_Buffer_Read_Pos &= 0xFFF;
\r
947 fprintf(debug_SCD_file, "Read Pos = %d ", CD_Audio_Buffer_Read_Pos);
\r
955 mov esi, CD_Audio_Buffer_Read_Pos
\r
960 mov eax, CD_Audio_Buffer_L[esi * 4]
\r
969 mov esi, CD_Audio_Buffer_Read_Pos
\r
974 mov eax, CD_Audio_Buffer_R[esi * 4]
\r
982 mov CD_Audio_Buffer_Read_Pos, esi
\r
987 CD_Audio_Buffer_Read_Pos += lenght;
\r
988 CD_Audio_Buffer_Read_Pos &= 0xFFF;
\r
992 fprintf(debug_SCD_file, "Read Pos 2 = %d\n\n", CD_Audio_Buffer_Read_Pos);
\r