@sith-lord-goz Rollback netplay, which is what is implemented in retroarch, relies on savestate determinism, like several other features (runahead, rewind, ...)

@sith-lord-goz You may try with Skyscraper 3.16 which adds --query="id=<IGDB-id>". However, the Game filename must have some similarity with the IGDB Game Title. Also the GameBase DB import from the SpeccyMania GameBase may come in handy.

@skankieflank You can install it like any other emulator, though we don't have the latest version (yet) added.

Hi!
Is it possible to build the ZEsarUX module for libretro, which is used in the popular Miyoo Mini console?
You can get the toolchain here - https://github.com/OnionUI/dev-miyoomini-toolchain
Big thanx for you emulator!

@Daru
You can download straight to the Pi if you are running Raspberry Pi OS, a bit of a guide here:
https://retropie.org.uk/docs/Manual-Installation/
https://raspberryexpert.com/how-to-install-retropie-raspbian/

@mitu you are right, thank you. I totally missed this, all I knew was that I could quit games of most platforms by START+SELECT

@mitu thanks a lot. yes , this is the very 1st first thing I did initially and while the config is definitely saved I launched a game (quazatron) and it simply doesnt work. (the d-pad right pauses the game and i think the X button or the Y resumes. another game like dan dare works with the dpad just fine, admittedly havent tried a load of games as trying to keep it simple and understand how/why its working on one and not another. i've launched retroach while the game is loading attempting to configure it per game but the config doesnt display properly (i think this might have to do with running retropie under buster and rpi4?). any other ideas when you have the time would be much appreciated.

Try creating an empty file (basic.tap) in the ROM folder and load it.

@mitu and @barbudreadmon That does work, thank you. It now loads the game. I changed the name to mrdo.tap and it works. Changing the extension to .sna did not work.

I can't get any inputs to work at present, but I suspect that will be because I'm on Retroarch 1.7.5 rather than a more recent one, so will need to update Retroarch if I can.

@BuZz not entirely sure, i played around with the settings as you suggested, then when I reset the pi the on-screen keyboard started working. I know the joystick cant work with every game but I've attached a keyboard as well so it all seems to be working.

@BuZz said in Help quitting game and returning to menu!:

@Stevezx81 it defaults to 128k spectrum so some games won't work. Can switch via options in. Retroarch or use 128k compatible games

Thanks!
I can't seem to switch it into 48k mode, I've even found the retroarch-core-options config file and changed fuse_machine = "Spectrum 128k" to fuse_machine = "Spectrum 48K" but it's the same.

Hi chernandezba

I really like your work :)

I read that zesarux also emulates MK14, zxspecnext, QL. Are those available in the retropie version? I've installed via the above (changing line 26 to point to - https://github.com/chernandezba/zesarux.git etc) - but note the .sh only adds spectrum, amstrad, samcoupe.

I see the machine options in the menu.

Do you please (please!) have plans to add the other systems to retropie build, or advise how to force emulation direct into each machine?

TIA

Iain

As Mitu has said you need to provide additional information in order for people to help.

That said the issues you have are more than likely caused by lr-fuse defaulting to 128k Spectrum mode. Early games like Football Manager or Jetpac can only be loaded on 48k machines.

More info is contained in this thread - https://retropie.org.uk/forum/topic/5409/jetpac-on-zx-spectrum

@AlexMurphy 0_1486231377052_zx3.png

@rbaker

I don't see how he is breaking the rules here. He wasn't asking where to get roms. He wasn't posting roms. All he asked is if it's possible alternate roms might work in his case when the one he has isn't playing. That's a reasonable question any newbie would ask and it isn't breaking any rules.

@dudleydes said in Jetpac on ZX Spectrum:

@Yorick According to World of Spectrum, Jetpac runs on a 16k machine. By default, lr-fuse, which I assume is you are using, runs the the 128k machine - you will see the line fuse_machine = "Spectrum 128K" in the file /opt/retropie/configs/all/retroarch-core-options.cfg.

If you change to 48k machine type in the RGUI, then Jetpac will run. Now this will be a pain to change between 48k and 128k machine for newer games that require the extra memory.

This is my solution. It may be not be optimum but it works.

In the folder /opt/retropie/configs/all/, create a text file called retroarch-core-options-fuse48k.cfg and add the following line:

fuse_machine = "Spectrum 48K"

Now we need to make sure Jetpac uses the 48k machine so in the ZX Spectrum roms folder, create a text file called Jetpac.tzx.cfg. The file name must match the tape so you may have to amend. In this file, add the following line:

core_options_path = /opt/retropie/configs/all/retroarch-core-options-fuse48K.cfg

Save and Jetpac should now run. If you take a look at retroarch-core-options-fuse48k.cfg after launching Jetpac, you'll notice RetroArch will have added extra lines. It's best to leave these.

For any other games that run a 16k machine such as Deathchase, all you need to do is copy the cfg file and rename it so that it matches the tape.

Hello Dudleydes,

Apologies for digging this post from it's grave, but I'm struggling trying to get your fix to work for loading 48K Roms in LR-Fuse? Is there any chance you could give me some guidance?