int intf_loadInstrument(object[] args)
{
int chanType = (int)args[0];
int instrId = (int)args[1];
var instrData = (byte[])args[2];
var instrDataOffset = (int)args[3];
return ((chanType & 0x40) != 0) ? PcmLoadInstrument(instrId, instrData, instrDataOffset) : FmLoadInstrument(instrId, instrData, instrDataOffset);
}