;; Zero page addresses ORNAMENT_L = $60 ORNAMENT_H = $61 SAMPLE_L = $62 SAMPLE_H = $63 LOOP = $64 MB_ADDR_L = $65 MB_ADDR_H = $66 MB_VALUE = $67 DONE_PLAYING = $68 DONE_SONG = $69 PT3_TEMP = $6A APPLEII_MODEL = $6B AY_REGISTERS = $70 A_FINE_TONE = $70 A_COARSE_TONE = $71 B_FINE_TONE = $72 B_COARSE_TONE = $73 C_FINE_TONE = $74 C_COARSE_TONE = $75 NOISE = $76 ENABLE = $77 PT3_MIXER_VAL = $77 A_VOLUME = $78 B_VOLUME = $79 C_VOLUME = $7A ENVELOPE_FINE = $7B ENVELOPE_COARSE = $7C ENVELOPE_SHAPE = $7D PATTERN_L = $7E PATTERN_H = $7F