C++ (Cpp) ASPI_Seek Examples

Example #1

File: cd_sys.c Project: YuGiOhJCJ/netgens

int
Seek_CDD_c4 (void)
{
  _msf MSF;

  CHECK_TRAY_OPEN CHECK_CD_PRESENT
    // MSF to seek in TC buffer
    MSF.M = (CDD.Trans_Comm[2] & 0xF) + (CDD.Trans_Comm[3] & 0xF) * 10;
  MSF.S = (CDD.Trans_Comm[4] & 0xF) + (CDD.Trans_Comm[5] & 0xF) * 10;
  MSF.F = (CDD.Trans_Comm[6] & 0xF) + (CDD.Trans_Comm[7] & 0xF) * 10;

  SCD.Cur_Track = MSF_to_Track (&MSF);
  SCD.Cur_LBA = MSF_to_LBA (&MSF);
  CDC_Update_Header ();

  SCD.Status_CDC &= ~1;		// Stop CDC read

  if (CD_Load_System == CDROM_)
    {
      ASPI_Seek (SCD.Cur_LBA, 1, ASPI_Seek_CDD_c4_COMP);
      SCD.Status_CDD = READY;
      CDD.Status = 0x0200;

      // DATA ?
      if (SCD.TOC.Tracks[SCD.Cur_Track - SCD.TOC.First_Track].Type)
	CDD.Control |= 0x0100;
      else
	CDD.Control &= 0xFEFF;	// AUDIO

      CDD.Minute = 0;
      CDD.Seconde = 0;
      CDD.Frame = 0;
      CDD.Ext = 0;
    }
  else
    {
      SCD.Status_CDD = READY;
      CDD.Status = 0x0200;

      // DATA ?
      if (SCD.TOC.Tracks[SCD.Cur_Track - SCD.TOC.First_Track].Type)
	CDD.Control |= 0x0100;
      else
	CDD.Control &= 0xFEFF;	// AUDIO

      CDD.Minute = 0;
      CDD.Seconde = 0;
      CDD.Frame = 0;
      CDD.Ext = 0;
    }

  CDD_Complete = 1;

  return 0;
}

Example #2

File: cd_sys.c Project: RetroAchievements/RASuite

int Play_CDD_c3(void)
{
	_msf MSF;
	int delay, new_lba;
	
	CHECK_TRAY_OPEN
	CHECK_CD_PRESENT

	if (CD_Load_System == CDROM_)
	{
		SCD.Status_CDC &= ~1;			// Stop read data with CDC
		Wait_Read_Complete();
	}

	// MSF of the track to play in TC buffer

	MSF.M = (CDD.Trans_Comm[2] & 0xF) + (CDD.Trans_Comm[3] & 0xF) * 10;
	MSF.S = (CDD.Trans_Comm[4] & 0xF) + (CDD.Trans_Comm[5] & 0xF) * 10;
	MSF.F = (CDD.Trans_Comm[6] & 0xF) + (CDD.Trans_Comm[7] & 0xF) * 10;

	SCD.Cur_Track = MSF_to_Track(&MSF);

	new_lba = MSF_to_LBA(&MSF);
	delay = new_lba - SCD.Cur_LBA;
	if (delay < 0) delay = -delay;
	delay >>= 12;

	SCD.Cur_LBA = new_lba;
	CDC_Update_Header();

#ifdef DEBUG_CD
	fprintf(debug_SCD_file, "Read : Cur LBA = %d, M=%d, S=%d, F=%d\n", SCD.Cur_LBA, MSF.M, MSF.S, MSF.F);
#endif

	if (CD_Load_System == CDROM_)
	{
		delay += 20;
		delay >>= 2;
		ASPI_Seek(SCD.Cur_LBA, 1, ASPI_Fast_Seek_COMP);
		ASPI_Flush_Cache_CDC();
	}