This is a port of seb's Sega Saturn Switchless Mod to AVR (avr-gcc). It is designed to be used as a drop-in replacement of the original PIC version as it has the same pin layout and behavior. It has been tested on ATtiny84A, but should work on similar microcontrollers with possibly minor adjustments.
Grab the .hex from Releases or build it using the Makefile and flash it on your microcontroller. The rest works exactly in the same way as in the original mod.
This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with this program. If not, see https://www.gnu.org/licenses/.