Raspberry Pi Forums

altharic

Just compile Retroarch and download the cores there are guides on github.

altharic

Works quite well with a pi b+ battery life is over and hour with a decent 18650 battery.

altharic

Its probably trying to use a video mode the rpi 4 doesn't have a driver for can you build from source.

altharic

Go into the mame source directory and do nano makefile then uncommemt REGENIE=1 and NOWERROR=1

Save and try again it should compile then look at ARCHOPS you can send Cflags to the compiler to set fpu mtune and march.

altharic

That explains it then thanks for looking hopefully raspbian one day goes 64 bit .

altharic

I wonder if its 64 bit only hence why it will not build on 32 bit?

Its in the FAQ it is

https://dolphin-emu.org/blog/2014/05/19/obituary-32bit/

EDIT seemingly not

32-bit ARM devices are not affected by this decision and will continue to be supported.

altharic

The generic build fails on this any ideas? make[2]: *** [Source/Core/VideoBackends/Vulkan/CMakeFiles/videovulkan.dir/build.make:102: Source/Core/VideoBackends/Vulkan/CMakeFiles/videovulkan.dir/ObjectCache.cpp.o] Error 1 make[2]: *** Waiting for unfinished jobs.... /home/pi/code/dolphin/Source/Core/V...

altharic

I got the source bundle from the link below https://github.com/mupen64plus/mupen64plus-core/releases/tag/2.5.9 I then used the following command line to build it sudo CFLAGS='-mfpu=neon -mtune=cortex-a72 -march=armv8-a' ./m64p_build.sh NEON=1 USE_GLES=1 VFP_HARD=1 NEW_DYNAREC=1 I had to also install...

altharic

Does it compile on raspbian at all or is it 64 bit only does ppsspp compile too?

altharic

Retroarch is working on the rpi4 I had n64 and sega saturn running last night with some success.

altharic

That Amazon link has instructions on how to install the drivers if you can connect using hdmi and go to a command prompt you would install the driver for the screen.

altharic

I use snes9x for super Nintendo seems to run most games without skipping.

altharic

I think this thread opens a can of worms we need a rpi4 emulation section to share what works and what doesn't.

Sadly the emulation sticky is woefully out of date.

Have you tried mednafen on a pi 3 or 4 it's amazing?

altharic

I used the guidance from this I have also built directly from the bundle source on the git hub for non libretro sources.

https://gist.github.com/ematysek/fc01a4 ... 226c53ff6e

altharic

What exactly are you guys wanting dosbox to do Doom for example runs better on the pi as chocolate doom as a source port?

I do have a rpi4 and have compiled it from source and I do have a lot of old dos software what would be a good test?

altharic

I tried n64 and only got 20 fps what could I be doing wrong also the sound was choppy even when using tinyalsa?

altharic

The sample rate would affect it as well as the resolution drop it down and it should run faster.

If you are purely playing these games use advancemame it runs better but less accurate.

altharic

That's of course we are assuming that the activation server is still up to install it.

altharic

I compile mame from source works fine on my pi4.

altharic

The ones in the repo are usually old versions also you can set compiler flags and also enable sega saturn support to test.

No idea about SNES however dropping sound rate might help in the off file.

I always used snes9x for SNES games anyways.

altharic

Mednafen runs a lot better complied from source.

altharic

Just checked on my mame and this is shown as a non runner what did you run it on?

altharic

Mednafen runs great provided you change the video mode to sdl from opengl in the config file.

altharic

Are you able to upload the binary somewhere?

altharic

I don't know about the keyboard question but mednafen works well on a pi provided you are using the opengl driver.

Does the official screen now work with the opengl driver or does it still get a black screen?

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