#include "const.h"
#include "state.h"

#include "vco.h"

float phase = 0.0f;
float vco(void) {
	float phase_inc = (state.vco_freq * 1760) / SAMPLE_RATE;
	phase += phase_inc;

	if (phase >= 1.0f) phase -= 1.0f;

	return (phase * 2.0f) - 1.0f;
}