static bool AudioOpen()
{
MSU1.MSU1_STATUS |= AudioError;
AudioClose();
char ext[_MAX_EXT];
snprintf(ext, _MAX_EXT, "-%d.pcm", MSU1.MSU1_CURRENT_TRACK);
audioStream = S9xMSU1OpenFile(ext);
if (audioStream)
{
if (GETC_STREAM(audioStream) != 'M')
return false;
if (GETC_STREAM(audioStream) != 'S')
return false;
if (GETC_STREAM(audioStream) != 'U')
return false;
if (GETC_STREAM(audioStream) != '1')
return false;
READ_STREAM((char *)&audioLoopPos, 4, audioStream);
audioLoopPos = GET_LE32(&audioLoopPos);
audioLoopPos <<= 2;
audioLoopPos += 8;
MSU1.MSU1_AUDIO_POS = 8;
MSU1.MSU1_STATUS &= ~AudioError;
return true;
}
return false;
}
uint8 S9xMSU1ReadPort(uint8 port)
{
switch (port)
{
case 0:
return MSU1.MSU1_STATUS | MSU1_REVISION;
case 1:
{
if (MSU1.MSU1_STATUS & DataBusy)
return 0;
if (!dataStream)
return 0;
int data = GETC_STREAM(dataStream);
if (data >= 0)
{
MSU1.MSU1_DATA_POS++;
return data;
}
return 0;
}
case 2:
return 'S';
case 3:
return '-';
case 4:
return 'M';
case 5:
return 'S';
case 6:
return 'U';
case 7:
return '1';
}
return 0;
}
int fReader::get_char(){
return GETC_STREAM(fp);
}
int fReader::get_char (void)
{
return (GETC_STREAM(fp));
}