How to uQLx on RPi

Discussion and advice about emulating the QL on other machines.
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NormanDunbar
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Re: How to uQLx on RPi

Postby NormanDunbar » Fri Jul 10, 2020 7:10 pm

I'd forgotten how slow a Pi Zero is!

I did a quick:

Code: Select all

wget www.dilwyn.me.uk/emu/uqlx2017.zip
unzip uqlx2017.zip
cd uqlx
cp .uqlxrc ../
vi ../uqlxrc


On line 3, ROMDIR, change "<user>" to "pi". (No quotes) Pi is the user I'm logged in as. Save and exit.

Code: Select all

./qm_armv6


It works.

The qm_armv8 file is 64 bit. The Zero is 32 bit.

The qm_armv7 executes and gives illegal instruction.

Qm_armv6 works. You need to use this version.


HTH

Cheers,
Norm.


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Re: How to uQLx on RPi

Postby Ruptor » Sat Jul 11, 2020 12:06 am

Thanks for testing. It seems like I am on another planet so can't make sense of your post. :? My line is
ROMDIR = /usr/local/uqlx/lib/uqlx/romdir
and I checked it exists. I understand the arm is a V6 but where does qm_armv6 come from it isn't in the list given in the text file instructions or on the SD image anywhere?


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Re: How to uQLx on RPi

Postby Ruptor » Sat Jul 11, 2020 12:31 am

Additionally the RPiOS is 32 bit and runs on any version of Pi so what is V7 or V6 why should the uQLx care?
Just to make the point it is not the Pi that is slow it is the software. My old 50 MHz 486 is far quicker running Windows for work groups and even the 8 MHz QL boots 100 times quicker, some progress. :roll:

I just tried the link you used and the unzipped stuff is completely different. How stupid of me I used this link that says it is for the ARM and is a complete installation for the RPi
http://www.dilwyn.me.uk/emu/uqlxarm.zip
:? :? :?


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Re: How to uQLx on RPi

Postby NormanDunbar » Sat Jul 11, 2020 9:46 am

I recognise the paths in your description. That's an older version created, I think, by Tobias. It's dated 2012 and I have used it on a Pi 1b with 256 RAMs.

Use the one I've Mentioned above. It's from 2017. http://www.dilwyn.me.uk/emu/uqlx2017.zip


Have fun.

PS. The Pi is slow. It takes too long to even open a terminal. I gave up on using the web browser!

Cheers,
Norm.


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Re: How to uQLx on RPi

Postby Derek_Stewart » Sat Jul 11, 2020 11:02 am

Hi,

I down downloaded a recent copy for RPI-OS and restored it with Linux Image Writer (Disks), this gave a bootable RPI SD Card.

Inserted the 8Gb SD Card into the RPI +3B and booted up OK, used raspi-config to use all the SD Card space.

I updated the Linux operating system and download the file UQLX2017.zip from the QL Homepage.

The file UQLX2017.zip was extracted to /home/pi/uqlx

I copied the file .uqlxrc to /home/pi/ or ~/

edited the ~/uqlxrc file to reflect the location of the QL romdir and opened a new terminal in ~/uqlx and entered the command: ./qm_armv7

See attached screen shot, with minimal uqlx configuration.
2020-07-11-103113_1824x984_scrot.png
UQLX running on RPI +3B

Next step is to read the manual again and compile a new copy from sources and maybe install a QWA file with more up to date QL software.

I was hoping to use sQLux, but that requires SDL2, which I am not sure is available on the RPI.


Regards,

Derek
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Re: How to uQLx on RPi

Postby Derek_Stewart » Sat Jul 11, 2020 2:05 pm

Hi,

After a little searching, it seems SDL2 is available on the RPI,

So installed the SDL2 development libraries and downloaded sQLux from GitHub.

sQLux compiled first time, with some warning, but generated an executable.

Running the emulator worked and loaded the demo not file.

It looks like RPI can run QL emulation through this emulators: UQLX, sQLux

Also SMSQmulator runs with Java 11, a little slower...


Regards,

Derek
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Re: How to uQLx on RPi

Postby janbredenbeek » Sat Jul 11, 2020 10:03 pm

I've been running uqlx on a Raspberry Pi 3B for over a year now. The 2017 armv7 release from Dilwyn's site will run on the Pi but there is no compiled armv7 binary of the 2018 release. I've managed to compile and run it on the Pi after installing some libraries (notably the SDL2 development).
When running a benchmark I got a speed index of about 103 (compared to unexpanded BBQL).

Jan


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Re: How to uQLx on RPi

Postby Derek_Stewart » Sun Jul 12, 2020 12:41 pm

Hi Jan,

Is it possible to programme the GPIO pins on the Raspberry PI from Superbasic?


Regards,

Derek
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Re: How to uQLx on RPi

Postby tofro » Sun Jul 12, 2020 3:20 pm

Well, sortof:

You can run native Linux programs from within uqlx using the pty interface (see the uqlx manuals for details). There should be some Python scripts in Raspbian that allow you to fiddle with the GPIOs - But don't expect wonders with regards to the speed: You will not be able to crate a 50Hz square wave on a GPIO that way.

Tobias


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Re: How to uQLx on RPi

Postby Ruptor » Sun Jul 12, 2020 10:39 pm

Derek_Stewart wrote:It looks like RPI can run QL emulation through this emulators: UQLX, sQLux
Only for you guys. I followed your instructions maybe but I get illegal instruction when running ./qm_armv7 so I tried armv8 and that has real trouble and armv6 run pulled up the windows you show plus the file manager and then promptly reset the Rpi. :( The RpiOS is crap taking minutes to turn on and after 40 years I am still using command lines to work a computer or not in this case on hardware that should be doing everything for me, some progress.
I don't understand this tilda directory structure and the home directory that both seem to have the uqlx directory. What am I looking at? I don't even have a guess for the problem other than me and I haven't done something right. :roll:



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