int AOut(int DAChannel, int DARange, int DAValue)
{
	int low, high, DACLOW, DACHIGH;

	switch(DAChannel)
	{
	case 0:
		DACLOW = DAC0LOW;
		DACHIGH = DAC0HIGH;
		break;
	case 1:
		DACLOW = DAC1LOW;
		DACHIGH = DAC1HIGH;
		break;
	default:
		return(8);
		break;
	}

	if(DAValue <= 255)
	{
		low = DAValue;
		high = 0x00;
	}
	else if((DAValue >= 256) && (DAValue <= 511))
	{
		low = DAValue - 256;
		high = 0x01;
	}
	else if((DAValue >= 512) && (DAValue <= 767))
	{
		low = DAValue - 512;
		high = 0x02;
	}
	else if((DAValue >= 768) && (DAValue <= 1023))
	{
		low = DAValue - 768;
		high = 0x03;
	}
	else if((DAValue >= 1024) && (DAValue <= 1279))
	{
		low = DAValue - 1024;
		high = 0x04;
	}
	else if((DAValue >= 1280) && (DAValue <= 1535))
	{
		low = DAValue - 1280;
		high = 0x05;
	}
	else if((DAValue >= 1536) && (DAValue <= 1791))
	{
		low = DAValue - 1536;
		high = 0x06;
	}
	else if((DAValue >= 1792) && (DAValue <= 2047))
	{
		low = DAValue - 1792;
		high = 0x07;
	}
	else if((DAValue >= 2048) && (DAValue <= 2303))
	{
		low = DAValue - 2048;
		high = 0x08;
	}
	else if((DAValue >= 2304) && (DAValue <= 2559))
	{
		low = DAValue - 2304;
		high = 0x09;
	}
	else if((DAValue >= 2560) && (DAValue <= 2815))
	{
		low = DAValue - 2560;
		high = 0x0a;
	}
	else if((DAValue >= 2816) && (DAValue <= 3071))
	{
		low = DAValue - 2816;
		high = 0x0b;
	}
	else if((DAValue >= 3072) && (DAValue <= 3327))
	{
		low = DAValue - 3072;
		high = 0x0c;
	}
	else if((DAValue >= 3328) && (DAValue <= 3583))
	{
		low = DAValue - 3328;
		high = 0x0d;
	}
	else if((DAValue >= 3584) && (DAValue <= 3839))
	{
		low = DAValue - 3584;
		high = 0x0e;
	}
	else if((DAValue >= 3840) && (DAValue <= 4095))
	{
		low = DAValue - 3840;
		high = 0x0f;
	}
	else
		return(7);

	outb(DARange, GAIN);
	outb(low, DACLOW);
	outb(high, DACHIGH);

	return(0);
}