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README-PI.md

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FinalBurn Neo for Raspberry Pi

Important notice

This port is meant for usage with the old closed-source gpu driver, which has been deprecated since 2019. Anybody using the modern open-source mesa driver should be using the sdl2 port instead. Either way, this port is outdated, unmaintained and currently fails building, so anybody wanting to use this nonetheless will have to fix it first.

Compiling

To compile the emulator, run make pi. You will need SDL 1.2 libraries for sound and input:

sudo apt-get install libsdl1.2-dev

To build on Pi4, you may need additional libraries, including:

sudo apt-get install libgles2-mesa-dev libgbm-dev libdrm-dev

If you receive "failed to fetch" errors during apt-get install, update the definitions (sudo apt-get update) and try again.

Compatibility

The emulator runs very smoothly on Pi 1, 2 and 3. It runs on 4, but the performance isn't nearly as good.

Input

To customize joystick input, place a text file in a directory named joyconfig. The file should have extension .jc, and named as follows:

<name of romset>.jc
<name of parent romset>.jc
capcom6.jc
default.jc

To determine mapping for a particular set, emulator will look for the first applicable file, in that order. capcom6.jc will only be checked if the set is determined to be a 6-button Capcom ROMset, such as SFII, III, etc. default is a fallback file.

For instance, for set sfau, emulator will look for sfau, sfa, capcom6, then default, in that order. For mkr4 (Mortal Kombat rev 4.0), mkr4, mk, default are applicable.

Joyconfig file format

The format of the file is as follows:

<INPUT NAME>=<hardware joystick button number>
...

Input name can be one of: TEST (usually F2 on keyboard), SERVICE (9 on keyboard) , RESET (F3), QUIT, START, COIN, or BUTTONx (where x is a numeric digit between 1 and 9).

Example

A generic default file could look as follows:

BUTTON1=1
BUTTON2=2
BUTTON3=3
BUTTON4=4
BUTTON5=6
BUTTON6=7
BUTTON7=8
COIN=9
START=10

In this case, buttons 1-8 on the hardware joystick map to emulated buttons 1-8, while joystick buttons 9 and 10 map to "Coin" and "Start", respectively.

Command-line switches

-f: Enables free play in games that include a Free Play dipswitch. This switch isn't guaranteed to always work, since not every game has a free play dipswitch, and because different sets may have the switch labeled differently. -F: Enables free play hack mode. In hack mode, pressing Start also generates a Coin button press.

About

Pi build is maintained by 0xe1f.