Bottom control panel sat a couple pixels too low relative to the top
panel (pre-existing, not a session regression) - nudged GYOFFSL in
int_text_off from 47+240-1 to 47+240. Confirmed correct on hardware.
Also uncommented the TSU_SEN write in int_text_on so hardware sprites
(mouse cursor) are enabled during text mode too, not just graphics
mode. Doesn't fix the known cursor clip right above the bottom panel
(that appears tied to a fixed screen row, independent of panel
position or this bit - left as a known issue, documented in README).
The AY volume-bar indicator (music_analizator) ran inside int_text_off,
the same precisely-timed interrupt chain that switches between text and
graphics video modes. Its DMA clear + page switching + drawing could
overrun that timing budget on dynamic tracks, causing visible vertical
stripe flicker. Moved it to the main loop (once per frame, after
wait_frame) instead, leaving the player tick (pt_play) and its tempo
timing untouched inside the interrupt.
Also waits for the DMA clear to finish before drawing bars into the
same memory (previously a write race).
alex