SCRXLIM and SCRYLIM extensions

SCRXLIM and SCRYLIM are two functions which return the screen width and height respectively on high resolution systems, or the outline width and height if used with secondary channel numbers. May be linked to compiled programs and included with free or commercial programs as required. They are freeware, and were written as compact extensions for use when larger toolkits which include similar functions are not required.

Download from

MiSTer Update

Busy chap that he likes to be, Marcel Kilgus has improved the QL core of the MiSTer system.

MiSTer is an open project that aims to recreate various classic computers, game consoles and arcade machines, using modern hardware. It allows software and game images to run as they would on original hardware, using peripherals such as mice, keyboards, joysticks and other game controllers. MiSTer utilizes a readily available FPGA board called the ‘DE10-Nano’, which connects to your TV or monitor via HDMI video out. It can additionally be expanded with various add-ons (such as a USB hub, SDRAM, audio and VGA out).

Marcel felt that as the QL is not as popular as other platforms so the core was still only a pretty basic port of the original MiST board, so in 2018 he worked on updating the core, to include a “Gold Card” implementation and a special version of SMSQ/E, plus a QL-SD implementation which runs correctly at all CPU speeds through switching the 68k core to the fx68k core. The software packages can be downloaded from Marcel’s website at


One of the challenges QL users currently face is the lack of monitors able to correctly show the QL display. The RGB output from the QL is not fully suitable for connection to modern flat screen monitors.

Some users have had a limited success with SCART to HDMI video upscalers. But as VGA computer monitors have been so common and readily available, we have long dreamed of being able to attach a QL to such a monitor. Oh, and make sure that our display monitors correctly display the full 85 character/512 pixel QL display without losing a couple of characters at the left and right edge.

After his foray into the QL hardware world with his work on updating the QL-SD interface to work with Gold Cards etc, Marcel Kilgus is now working on a small QL-VGA board to allow QLs to be successfully connected to modern monitors.

Marcel’s solution consists of a Cyclone II development board with an FPGA and other components, to which Marcel has added a second small board with RGP input with level shifter, VGA output and SRAM chip. The FPGA chip is programmed to do the hard work on the video – Marcel says it empowers software people like him to solve real hardware problems.

The idea behind the board, put simply, is that it converts the 512×256 50Hz QL screen into a standard 1024×768 60Hz VGA signal that can be processed by probably every monitor in existence, or further converted by additional hardware to HDMI if need be.

QL-VGA pictures from Marcel Kilgus

The device is currently undergoing testing before there can be a production run, so availability date and price are unknown at the time of writing.

Keep up to date with this by following Marcel Kilgus’s blog at


Peter Scott has finally released his 198x adventure game. Apparently, work started on it in 2014 and took over five years. It was written in the ACT system (Adventure Creation Tool) for QL.

Here is a summary of the story.

“In the new future, computer data is the newest and most valuable commodity, worth more than rare metals, dwindling fossil fuels or even gold. Individuals, companies and even countries will stop at nothing to get a lead on information before someone else does, receiving vital information even just minutes before a rival can mean difference between war or peace, profit or bankruptcy, or even life or death.

This new endless thirst for information has led to the rise of data extraction profession; clandestine agencies and individuals, who receive shady anonymous requests for data espionage jobs ranging from the world changing to the almost mundane or petty. A new job request has flashed up on your encrypted messaging system.”

Download the game from:

The Distribution Reloaded

The third release of either THE DISTRIBUTION or QL/E this winter.

15th December 2019 sees the release of THE DISTRIBUTION RELOADED! 2019 (latest v3.05) Raspberry Pi (RP) edition.


Download it here:

Browse to the last column “Download” in the “THE DISTRIBUTION” section and look for:

Image of Raspbian Buster with Complete Distribution, RELOADED edition 1911 v3.05, for Raspberry Pi, 8.48 GB

Then, 22nd December 2019 brought the fourth release of either THE DISTRIBUTION or QL/E this winter!

Today sees the release of THE DISTRIBUTION RELOADED! 2019 (latest v3.05) QL-SD, MIST & Q68 (QL) edition.


Download it here:

Browse to the last column “Download” in the “THE DISTRIBUTION” section and look for:

Image of SDHC card with Distribution, RELOADED edition 1911 v3.05, for QL-SD, MIST & Q68, 472 MB

Magazine Articles Page

I’ve set up a new page on my website containing scanned magazine articles.

Thanks to the work of individuals like Klaus Frank who’ve been busy scanning articles for me, the first draft of the page is ready with a few articles from various magazines.

Not all of the magazines listed have been scanned yet – this is a work in progress.

Note that many of the scans are graphical and so pretty HUGE in size. Offered as they are just for reading.

Please don’t everyone start sending me “improved” scans etc etc of existing material, I just won’t have time to handle it. Since such scans are huge and internet upload so slow here, uploading new scans takes overnight per 50MB typical scan. In other words, large volumes of material just won’t happen.

The page is at

EasyCircuit 2.01

Andreas von Döllen has given permission for the EasyCircuit DAD and circuit design program to be made freeware.

It’s a German language program, originally released in 1992.

The source files are available too.

Here are some screen dumps, reproduced from QL Forum:

Download the program and source files from

P.I.Cole – A Noir Detective Game

Andrei Tenu has written a new detective game called P.I.Cole-The Case Of The Missing Doxie.

Available to download from and in four versions:

  • As a 1MB .WIN container
  • As a DD floppy disk image
  • As 4 MDV images for use on vDrive QL
  • As a regular zip file for a QL.

SMSQ/E 3.35

SMSQ/E version 3.35 is out now – get it from .

The sources for the revised QL-SD drivers from Marcel Kilgus are in there now.

There are also some bugfixes, including one which could cause the entire machine to crash severely if a string variable was used as a REPeat loop control variable (bug found by Per Witte).

As a result, it is no longer possible to use string variables as REPeat loop control variables (just like FOR loops).