Viewing Issue Advanced Details
ID Category [?] Severity [?] Reproducibility Date Submitted Last Update
08589 Graphics Minor N/A Mar 25, 2023, 10:18 Mar 25, 2023, 23:46
Tester Augusto View Status Public Platform MAME (Official Binary)
Assigned To Resolution Open OS Other
Status [?] Acknowledged Driver
Version 0.252 Fixed in Version Build 64-bit
Fixed in Git Commit Github Pull Request #
Summary 08589: a7800: MAME source not have mid-line updates register code
Description Hello.
The console does mid-line updates in graphics.
Not emulating that feature have occasional graphical glitches in some games.
MAME not have mid-line updates code.

A7800 is an emulator for Atari 7800 using MAME a7800 source code plus some fixes, mid-line updates and others features.

Please see the link below with replies from A7800 creator.

MAME need add mid-line update for accuracy.

Thanks for reading.
Have an nice day.
Steps To Reproduce
Additional Information
Github Commit
Regression Version
Affected Sets / Systems a7800
Attached Files
There are no relationship linked to this issue.
User avatar
Senior Tester
Mar 25, 2023, 23:46
Acknowledged. Someone who knows this hardware hopefully can provide some input.