Using the Stock Pac-Man board, I've done the USB hack, and UART hack,
and am running tests on the MAME from Rampage v.101, almost all the
games run, you see some graphical glitches due to the keyboard mapping though.
Detailed information here:
https://www.reddit.com/r/Arcade1Up/comments/a02870/hack_original_board_not_just_replace_w_pietc/Gauntlet is missing a graphics layer, so that's why it runs through Retroarch.
Anyways, everything is running off a USB stick, mounted as drive.
I mapped some keys to a USB keyboard, and all joystick to the Pac-Man joystick,
and action to Player 1 start:
MAME functions work great
----------------------------
all audio mapping, volume works
video rotation works, scaling works
video features work - brightness, contrast, gamma
Savestates - Saving and Loading works
Dipswitches - works
Pause works
Some functions are persistent across reboots
Still testing - cheats [should work]
- analog controls [USB mouse/trackball/spinner]
later
-1