Function set_attributectl_reg

src/graphics/vga/mod.rs:774–794

Set attribute control register

(idx: u8, val: u8)

// Set attribute control register
fn set_attributectl_reg(idx: u8, val: u8)
{
	interrupts::without_interrupts(||
	{
		// Input status register
		let mut isr: Port<u8> = Port::new(INPUT_STATUS_REG);

		// Address
		let mut address: Port<u8> = Port::new(ATTRIBUTE_ADDRESS_DATA_REG);

		unsafe
		{
			// Reset to address mode
			isr.read();
			let tmp = address.read();
			address.write(idx);
			address.write(val);
			address.write(tmp);
		}
	})
}


// Set color