You need to update the RetroPie Setup Script first. To do so, change to the directory of RetroPie Setup Script,

cd /home/pi/RetroPie-Setup/

and update the script via git,

git pull

Then, start the setup script via

sudo ./retropie_setup.sh

change to source-based installation and select only the GBA emulator gpsp to be installed.

Afterwards, re-enerate the Emulation Station configuration file from the “setup” menu.

I have written this without explicit testing, please report any issues that possibly occur.

Hope that helps!

[quote=1577]That worked perfectly. Thanks.[/quote]

Glad to hear!

Disregard my previous post, figure it out :)

I installed this, and I was able to download the latest script and run the install from sources, but I don’t think it compiled properly. When I try to launch games, it crashes back to EmulationStation. I see this in the logs:

`lvl2: /home/pi/RetroPie/supplementary/runcommand/runcommand.sh 2 “/home/pi/RetroPie/emulators/gpsp/raspberrypi/gpsp /home/pi/RetroPie/roms/gba/Astro\ Boy\ -\ Omega\ Factor.gba”
lvl1: …launch terminated with nonzero exit code 32512!`

I think it may not have compiled gpsp correctly, but I’m not sure where to look for the logs. For instance, it seems to be looking for /home/pi/RetroPie/emulators/gpsp/raspberrypi/gpsp but there is no “gpsp” file in that directory. I’m not at a level yet where I can troubleshoot what went wrong compiling from sources. :-(

I was able to sort things out by completely tossing out gpsp and reinstalling it manually by cloning from GitHub and compiling it.

I used this port.

I’m not sure which fork of gpsp RetroPie-Setup is installing, but Aloshi just updated his/her port today(!!!), and it now includes the ability to map keys with a config file as well as set hotkeys for things like exiting the emulator. It’s now a good RetroPie citizen. I’ve been able to launch games from the menu, play at full speed, and quit back to the menu when done.

Just clone the repo, cd into the raspberrypi directory, and run “make”. Then create the gpsp_input.cfg file according to the instructions in INPUT.md, and customize with your gamepad’s keys, and edit .emulationstation/es_systems.cfg to point to the newly compiled gpsp.

I haven’t figured out if there’s a way to map multiple-button hotkeys like you can do with RetroArch, or if I can map a hotkeys for savestates, but it’s definitely playable.

I just added the following to gpsp_input.cfg:

btn_quit = 0

I used the X button on my SNES controller. Since the GBA only had two buttons, the X and Y buttons are unused. No need to use your Select button (which is used more often than you might think in GBA games.)

I haven’t yet figured out if there is a hotkey I can add for save or load states, but SRAM saves work fine.

I’m not sure what’s the hold up there. I would recommend trying what I did; delete or rename the existing gpsp folder and clone from scratch. (Go into the RetroPie/emulators folder and type “git clone https://github.com/Aloshi/gpsp.git”, then try “make” again.)

Here’s a copy of my gpsp_input.cfg file:

joyIndex = 0
axis_up = -1
axis_down = +1
axis_left = -0
axis_right = +0
btn_a = 1
btn_b = 2
btn_l = 4
btn_r = 5
btn_start = 9
btn_select = 8
btn_quit = 0

key_up = up
key_down = down
key_left = left
key_right = right
key_a = z
key_b = x
key_l = a
key_r = s
key_start = return
key_select = right_shift