A7800 v4.0

A7800 v4.0 is released. A7800 is a fork of the MAME Atari 7800 driver, with several enhancements added. Support for emulation of Proline Joysticks, VCS Joysticks, Lightguns, Paddles, Driving Controllers, Keypads, Trak-Balls, Amiga Mice, and ST Mice.

A7800 v4.0 changelog:
Implementation of XM control registers updated.
SALLY (CPU) and MARIA (Graphics chip) performance adjustments.
Additional display options and enhancements.
Audio indication of no ROM loaded silenced.
corrected ST and Amiga mouse button behavior.
7800 bios files made optional. (with warning when absent)
minor POKEY audio emulation improvements.
framerate update to 50Hz/60Hz.

http://7800.8bitdev.org/index.php/A7800_Emulator

http://www.emucr.com/2020/06/a7800-v40.html