Service button

From NeoGeo Development Wiki
Revision as of 20:45, 14 March 2017 by Furrtek (talk | contribs)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigation Jump to search

Arcade cab service button. Brings up the system ROM menu.

The input (JAMMA edge pin R) is read through REG_STATUS_A bit 2.

Retrieved from "https://wiki.neogeodev.org/index.php?title=Service_button&oldid=5543"