Pinocchio - Trembling HUD glitch

[a-barone]

S32X Core version:
Release 20220607

Hi!

The Pinocchio prototype exhibits a trembling HUD when horizontally scrolling the screen only on the S32X core; it doesn't happen on real hardware. The videos I recorded were with the game running at 60Hz but the issue also occurs at 50Hz with the S32X core.
I recorded footage of the S32X core running side-by-side with a real Genesis 32X setup:
Real Hardware (Left) | S32X Core (Right)
https://youtu.be/PLxr75SaaKY

And here is a recording focused only on the S32X Core and zoomed in:
https://youtu.be/P669gY9YvLk

I used this ROM for the tests:
https://hiddenpalace.org/Pinocchio_32x_(Dec_6,_1995_prototype)

[asturur]

Issue still present in #45

[asturur]

if someone wants to try again
https://github.com/MiSTer-unstable-nightlies/S32X_MiSTer/releases/download/unstable-builds/S32X_unstable_20230415_072c29.rbf

[asturur]

To trigger the issue: Hud ( pinocchio life count ) tremble when scroll speed accelerate or decelerate, at any point in the game. Very visible at game start too.

[asturur]

tried, still there.
Just as a log, the issue is so minor that not sure anyone care.
Also probably the last active reported issue

[Toryalai1]

Is this still the case with the latest unstable?

[asturur]

I didn't manage to try the latest myself, today i need to solve the merge conflicts with latest master and i ll give a spin

[a-barone]

This issue still occurs both in the most recent stable release and in the unstable build from September.

[asturur]

Yeah this is the issue i try every update. Still there

[asturur]

with the nov build of 52df005 still there.

I start to wonder if is something tied to the MD/32X graphic sync since it happens only on acceleration/deceleration of pinocchio