Install additional emulator (psx)

chelo_c

Hello, every time I turn on my psx emulator it says: Bios not found, expect bugs. I have placed many, almost 20 different bios in the Retropie/BIOS folder, none of them seem to work.

Now I want to try with a different emulator like: https://github.com/libretro/beetle-psx-libretro
How can I add this emulator? currently I only have the one that comes by default.

Thanks

herb_fargus

@chelo_c building for the Rpi is disabled on beetle-psx cause it won't be playable. Maybe a couple fps at best.

The current emulator does work so its a configuration issue on your end.

https://github.com/RetroPie/RetroPie-Setup/wiki/Playstation-1

cafarellidigital

@chelo_c I am using the default psx emulator with no problems on my Rpi 3 (v3.6). I only have one BIOS in the folder, "us_scd1_9210.bin". Perhaps having many psx BIOS files causes problems? Or your BIOS files do not have the correct filenames? You don't have it in a sub-folder inside of BIOS, right?

dankcushions

@chelo_c tip: bios names are case-sensitive

Yuke

push

Any chance to get beetle-psx-libretro running on the the rp3b or rp3b+? Or is it still not working?

I need an alternative to pcsx because you have to use bilinear filtering with this emulator to fix vertical scrolling artifacts. Bilinear Filtering blurs everything sadly and the games look like crap then (I play native resolution via pi2scart hat)

dankcushions

@yuke said in Install additional emulator (psx):

push

Any chance to get beetle-psx-libretro running on the the rp3b or rp3b+? Or is it still not working?

you can compile it and it should run, but it will be uplayably so=low as it is not optimized for ARM in the way that rearmed is.

I need an alternative to pcsx because you have to use bilinear filtering with this emulator to fix vertical scrolling artifacts. Bilinear Filtering blurs everything sadly and the games look like crap then (I play native resolution via pi2scart hat)

define native resolution? psx games have several resolutions. this sounds like a setup issue.

Yuke

@dankcushions

Playing Valkyre Profile and Lunar at the moment. Both 320x240 games afaik. When a prerendered Background is being scrolled vertically you get horizontal lines that tear the image. You can only fix it by activating Bilinear Filtering which sadly destroys the retro look of the games. I was hoping that this problem is missing when using beetle. It has a more accurate emulation from what i heard.

ChuckyP

@yuke unfortunately more accurate emulation takes horsepower that the Raspberry Pi doesn’t have. Your use case may require a more powerful PC to give you the best CRT experience.

dankcushions

@yuke said in Install additional emulator (psx):

@dankcushions

Playing Valkyre Profile and Lunar at the moment. Both 320x240 games afaik. When a prerendered Background is being scrolled vertically you get horizontal lines that tear the image. You can only fix it by activating Bilinear Filtering which sadly destroys the retro look of the games. I was hoping that this problem is missing when using beetle. It has a more accurate emulation from what i heard.

now almost certain this be a config problem. pcsx is actually fairly accurate as a software renderer. perhaps someone with a CRT can help but i suspect it isn’t pairing well with your resolution settings.

Yuke

I didnt tinker around much. I bought a product from Arcadeforge (GPIO hat + customized image of latest retropie build). The HDMI timings are pretty solid (better than Retrotink btw, ive tested both). I dont have any artifacts (tested the usual suspects like Castlevania and Super Mario World). Only thing thats bothering me is the mentioned Image Tearing in PS1 games when a prerendered background scrolls vertically.

Is there a commandline i can use to install and test out the beetle emulator? I cant find it under optional packages sadly.

rbaker

@yuke said in Install additional emulator (psx):

customized image of latest retropie build

Are not supported.

dankcushions

@yuke said in Install additional emulator (psx):

I didnt tinker around much. I bought a product from Arcadeforge (GPIO hat + customized image of latest retropie build).

we don't support customized image. actually what they're doing breaks the software license: https://retropie.org.uk/about/legal/

in any case, you need to ask them for support.

Is there a commandline i can use to install and test out the beetle emulator? I cant find it under optional packages sadly.

i think it's in the experimental menu, but like i said, if it even works, it won't be playable.

edmaul69

@yuke what is a game i can test for tearing. I only can do testing of composite 240p on a tv but i can at least see if i have tearing or not. What device are you using from arcadeforge?

Yuke

@edmaul69 Valkyre Profile for example. First sequence after starting the game.

https://drive.google.com/open?id=1MQZiXe-MTktnyjfQDXKKjtbZdLGgjr-Y

Here is a clip where you can see it.

edmaul69

@yuke so what device are you using? i will check this out

Yuke

@edmaul69

Pi2Scart Hat