ocr: Register 12 Register 12 contains the 2 MSB of the cursor position register. Bits g and 1 correspond to cursor bits 8 and 9. Register 14 Register 14 contains the low byte of Voice 1 frequency base. All TED sound generators praduce square waves. Register 15 The low order eight bits of the frequency base for the second voice source are contained in this register. This voice is selectable for either white noise or another square wave: generator. This selection is available in Register 17. Register 16 This register contains the 2 MSB of Voice 2. Register 17 Register 17 bas 4 bits of volume control ...
