(GUIDE) How to add Ocarina of Time PC Port to Retropie (Pi5 64bit)

nioh8

hey thanks for this, got it up and running on my pi5 with pi os, runs well. a bit off topic but this is the only relevant post i can find, is it possible to build the perfect dark PC port for the raspberry pi 5? i don't have the best knowledge with this stuff, was wondering if anyone has done it, thanks.

ExarKunIv

@nioh8 maybe
there is a Perfect Dark Decompilation on github, so there is a possibility that it could work.

nioh8

@ExarKunIv yea there’s a full fledged pc port here

https://github.com/fgsfdsfgs/perfect_dark

But I’m not well versed in compiling so was looking for some direction in how to build it

ExarKunIv

@nioh8 im someone can figure it out.
if i have time i can maybe mess with it. im trying to get the script for Ocarina of Time to work.
being a real bugger

ExarKunIv

@mitu i hate to tag you. but im out of ideas.

@retropieuser555 and I are trying to get a script working for the port above. and im seeing something i have not seen before.

here is the script
from what i can tell it is good and for the most part it works fine, but the thing is. it takes like 6 hours if it finishes

but if you run the command above it will take like 30 min. (i timed it)

what could be causing this issue. is there something in the background that RetroPie doing that would slow this down.
im very lost here

mitu

@ExarKunIv said in (GUIDE) How to add Ocarina of Time PC Port to Retropie (Pi5 64bit):

here is the script
from what i can tell it is good and for the most part it works fine, but the thing is. it takes like 6 hours if it finishes

but if you run the command above it will take like 30 min. (i timed it)

Pure guesswork, but running it from the script sets MAKEFLAGS to increase parallelism during build, which requires a great amount of RAM due to multiple threads compiling at the same time. The RAM requirement is so great, that it hits the SWAP, which is going to massively slowdown the compilation.

Running the commands by hand will use a single thread/CPU for compiling, lowering the RAM requirements and thus finishing sooner.

Btw, RetroPie already has a swap adding/removing function in helpers, there no need to invent another one.

EDIT: forgot to add. Modify the build function and unset MAKEFLAGS or set it to -j1, before the cmake commands are executed. See if that changes anything.

ExarKunIv

@mitu as always thank you for that insight. i will make the changes and see what happens

ExarKunIv

@mitu so adding the -j1 did the trick
j1 was slow so i changed the number, but its working

i just need a little help with the function rpSwap() i dont know how to set that up correctly

or is there a current script that already uses this that i can look at

mitu

@ExarKunIv said in (GUIDE) How to add Ocarina of Time PC Port to Retropie (Pi5 64bit):

i just need a little help with the function rpSwap() i dont know how to set that up correctly

openmsx and mame use that function. The only parameter is the amount of Mb you need, which the function allocates taking into account the existing RAM.

ExarKunIv

@mitu thank you. thats a big help