devkitPro

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int AVol[ymBufferLen] = {10,10,10,
int AFreql[ymBufferLen] = {XX,XX,XXX
BFreq,BVol. CFreq, CVol. DFreq, DVol

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#include <nds.h>
#include <stdio.h>

#include "d-vol.h"
#include "vols.h";

volatile int pos = -1;
volatile int channelA=0;
volatile  int channelB=0; 
volatile int channelC=0;
volatile int channelD=0;



void timerCallBack()
{
	if (pos < ymBufferLen)
	{
		u16 freq = (2 * 1000 * 1000) / (2 *  AFreq[pos]);
		soundSetFreq(channelA,freq);
		soundSetVolume(channelA, Vols[AVol[pos]]);

		freq = (2 * 1000 * 1000) / (2 *  BFreq[pos]);
		soundSetFreq(channelB,2 * freq);
		soundSetVolume(channelB, Vols[BVol[pos]]);
		
		freq = (2 * 1000 * 1000) / (2 *  CFreq[pos]);
		soundSetFreq(channelC,freq);
		soundSetVolume(channelC, Vols[CVol[pos]]);

		if (DFreq[pos] == 0)
			soundSetVolume(channelD,0);
		else
		{
			 freq = (2 * 1000 * 1000) / (2 *  DFreq[pos]);
			soundSetVolume(channelD, Vols[DVol[pos]]);
		}

		pos++;	
	}
}


//---------------------------------------------------------------------------------
int main(void) {
//---------------------------------------------------------------------------------
	consoleDemoInit();

	float maxvol=Vols[15];
	for (int i = 0; i<= 15; i++)
	{
		Vols[i] = ((255/4)/maxvol) * Vols[i];
	}
		
	soundEnable();	

	channelA = soundPlayPSG(DutyCycle_50, 1, 0, 64);
	channelB = soundPlayPSG(DutyCycle_50, 1, 0, 64);
	channelC = soundPlayPSG(DutyCycle_50, 1, 0, 64);
	channelD =soundPlayNoise (500,0, 64);

	timerStart(0, ClockDivider_1024, TIMER_FREQ_1024(50), timerCallBack);

	pos = 0;

	while(pos < ymBufferLen) 
	{	
		swiWaitForVBlank();
			
		iprintf("\x1b[10;0Hcc pos = %d of %d",pos,ymBufferLen-1 );
	}
	soundKill(channelA);
	soundKill(channelB);
	soundKill(channelC);
	soundKill(channelD);
	soundDisable();
	return 0;
}