A7800 v5.0 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 v5.0 changelog:
graphical register updates made mid-scanline are now displayed mid-scanline.
bankset bankswitching support added.
pokey emulation quality improvements.
improved lightgun emulation accuracy.
a7800dev and a7800pdev machine targets added, which display DMA usage per-scanline.
balanced palette brightness and saturation.
pokey@800 added for non-banked, supergame, and bankset formats.
os x build now defaults to opengl video. (bgfx video may not work on recent os x releases)

Download: A7800 v5.0
Source:Here