#agonlight — Public Fediverse posts

I've rewritten my #Console8 logo player -also works on #AgonLight - and updated the video file for 2 reasons. 1. it was a bit long playing the whole thing, and 2. I wanted to play a higher resolution video, covering as much of the screen as possible. With a bit of video editing (cutting and cropping to make the most of the logo at the end), plus taking advantage of the VDP code for both decompression and bitmap expansion, this is what my boot sequence looks like. I've left the logo to linger a little, but that's optional and a quick change to the script.
Source code, binary and assets are available here: https://github.com/sijnstra/agon-projects/tree/main/logoplay2
#ez80 #z80 #assemblyLanguage #8bit #retrocomputing #console

I've rewritten my #Console8 logo player -also works on #AgonLight - and updated the video file for 2 reasons. 1. it was a bit long playing the whole thing, and 2. I wanted to play a higher resolution video, covering as much of the screen as possible. With a bit of video editing (cutting and cropping to make the most of the logo at the end), plus taking advantage of the VDP code for both decompression and bitmap expansion, this is what my boot sequence looks like. I've left the logo to linger a little, but that's optional and a quick change to the script.
Source code, binary and assets are available here: https://github.com/sijnstra/agon-projects/tree/main/logoplay2
#ez80 #z80 #assemblyLanguage #8bit #retrocomputing #console

I've rewritten my #Console8 logo player -also works on #AgonLight - and updated the video file for 2 reasons. 1. it was a bit long playing the whole thing, and 2. I wanted to play a higher resolution video, covering as much of the screen as possible. With a bit of video editing (cutting and cropping to make the most of the logo at the end), plus taking advantage of the VDP code for both decompression and bitmap expansion, this is what my boot sequence looks like. I've left the logo to linger a little, but that's optional and a quick change to the script.
Source code, binary and assets are available here: https://github.com/sijnstra/agon-projects/tree/main/logoplay2
#ez80 #z80 #assemblyLanguage #8bit #retrocomputing #console

I've rewritten my #Console8 logo player -also works on #AgonLight - and updated the video file for 2 reasons. 1. it was a bit long playing the whole thing, and 2. I wanted to play a higher resolution video, covering as much of the screen as possible. With a bit of video editing (cutting and cropping to make the most of the logo at the end), plus taking advantage of the VDP code for both decompression and bitmap expansion, this is what my boot sequence looks like. I've left the logo to linger a little, but that's optional and a quick change to the script.
Source code, binary and assets are available here: https://github.com/sijnstra/agon-projects/tree/main/logoplay2
#ez80 #z80 #assemblyLanguage #8bit #retrocomputing #console

I've rewritten my #Console8 logo player -also works on #AgonLight - and updated the video file for 2 reasons. 1. it was a bit long playing the whole thing, and 2. I wanted to play a higher resolution video, covering as much of the screen as possible. With a bit of video editing (cutting and cropping to make the most of the logo at the end), plus taking advantage of the VDP code for both decompression and bitmap expansion, this is what my boot sequence looks like. I've left the logo to linger a little, but that's optional and a quick change to the script.
Source code, binary and assets are available here: https://github.com/sijnstra/agon-projects/tree/main/logoplay2
#ez80 #z80 #assemblyLanguage #8bit #retrocomputing #console

Teil 2 zum AgonLight - Programmieren in 2026 auf einem modernen 8-Bit System in Basic und Assembler. Home Automation in 8-Bit, why not?

https://retrocomputer-dresden.de/agonlight-programmierung/

#agonlight #retrocomputing #dresden #basic #bbcbasic #assembler #esp32

Teil 2 zum AgonLight - Programmieren in 2026 auf einem modernen 8-Bit System

https://retrocomputer-dresden.de/agonlight-programmierung/

#agonlight #retrocomputing #dresden #basic #bbcbasic #assembler #esp32

Teil 2 zum AgonLight - Programmieren in 2026 auf einem modernen 8-Bit System in Basic und Assembler. Home Automation in 8-Bit, why not?

https://retrocomputer-dresden.de/agonlight-programmierung/

#agonlight #retrocomputing #dresden #basic #bbcbasic #assembler #esp32

Retroparty war wieder genial ❤️
Da wir an die Kapazitätsgrenze geraten, wird die nächste wohl an einer anderen Location stattfinden. Dieses mal stand die Party unter dem Motto Atari. Ich hoffe ein paar Amiganer konnten Vorurteile abbauen, ich schon 😉

https://retrocomputer-dresden.de/retroparty-2026-one/

#retrocomputing #atari #agonlight #z80 #dresden #retro #party

Retroparty war wieder genial ❤️
Da wir an die Kapazitätsgrenze geraten, wird die nächste wohl an einer anderen Location stattfinden. Dieses mal stand die Party unter dem Motto Atari. Ich hoffe ein paar Amiganer konnten Vorurteile abbauen, ich schon 😉

https://retrocomputer-dresden.de/retroparty-2026-one/

#retrocomputing #atari #agonlight #z80 #dresden #retro #party

Retroparty war wieder genial ❤️
Da wir an die Kapazitätsgrenze geraten, wird die nächste wohl an einer anderen Location stattfinden. Dieses mal stand die Party unter dem Motto Atari. Ich hoffe ein paar Amiganer konnten Vorurteile abbauen, ich schon 😉

https://retrocomputer-dresden.de/retroparty-2026-one/

#retrocomputing #atari #agonlight #z80 #dresden #retro #party

Retroparty war wieder genial ❤️
Da wir an die Kapazitätsgrenze geraten, wird die nächste wohl an einer anderen Location stattfinden. Dieses mal stand die Party unter dem Motto Atari. Ich hoffe ein paar Amiganer konnten Vorurteile abbauen, ich schon 😉

https://retrocomputer-dresden.de/retroparty-2026-one/

#retrocomputing #atari #agonlight #z80 #dresden #retro #party

Retroparty war wieder genial ❤️
Da wir an die Kapazitätsgrenze geraten, wird die nächste wohl an einer anderen Location stattfinden. Dieses mal stand die Party unter dem Motto Atari. Ich hoffe ein paar Amiganer konnten Vorurteile abbauen, ich schon 😉

https://retrocomputer-dresden.de/retroparty-2026-one/

#retrocomputing #atari #agonlight #z80 #dresden #retro #party

Repórter Retro 098

https://retropolis.com.br/2023/11/30/reporter-retro-098/

#ReprterRetro #AgonConsole8 #AgonLight #Amiga #AppleII #AppleIIc #arcticretro #AS1000 #AugustoBaffa #Baffa2 #Barbie #Centurion #ColecoAdam #Commodore16 #CuriousMarc #DisqueteDe514 #DisqueteDe8 #Drygol #MquinasDeEscrever #Mitsubishi #MSX #MSX1 #MSXJa #NeXT #Olivetti #PCXT #Ringo #RMC #SayakasDigitalAttic #SegaMegaDrive #TechnologyConnections #TennisForTwo #TK83 #TRS80PC1 #UsagiElectric #ZX81

Episódio 159 – RetroRetrospectiva 2024 – Parte A

https://retropolis.com.br/2024/12/04/episodio-159-parte-a/

#Podcast #AgonLight #AnotherWorld #AppleIIc #apresentao #Carnivore #Commodore116 #Commodore16 #CommodorePlus4 #digresses #Encontros #expanso #FlowChart #fluxograma #FujiNet #gastronomia #HarvardGraphics #jogo #KazuhikoNishi #KungFuFlash #memria #MicrosClssicos #MSX #MSX3 #MSXRio #NES #perifricos #podcast #PowerPoint #Retrobesteiras #Retrocomputao #retrogaming #Retrpolis #RetroRio #Ri

Time for another image viewer for #AgonLight #Console8 - this time, PCX format. There are a number of reasons why I chose to display this format on the Agon/Console8.
* It is an already existing format
* The format is supported by modern tools, including #GIMP
* It uses a very simple form of compression ideal for 8 bit CPUs
* The specific choice of 16 colours has additional benefits:
* The 16 colours are chosen from within the available 64 colour palette
* The 16 colours allows the image to be sent to the VDP with 2 pixels per byte, speeding up the transfer
I've attached a sample here to show just the quality of the resolution and colour depth. #z80 source code and binary is at:
https://github.com/sijnstra/agon-projects/tree/main/PCXview
#retrocomputing #image #viewer #ez80

Collaborating with TurBoss on this one - I can now telnet from my #AgonLight via the @olimex UEXT wifi module and straight across the internet to an #IRC server, which in turn has a bridge to Discord. That's right, we can talk Agon to PC or even Agon to Agon via IRC/Discord. #Discord and #Agon shots below. #retrocomputing

I've improved the #AgonLight implementation of Daniel Martin's #TRS-OS to make a more authentic #trs80 experience. The main thing I wanted to improve was the display capabilities. Steps taken (with thanks) to get the authentic output:
1. Obtain + fix the correct font
2. Load the font into #Agon
3. Modify the VDP to allow buffered fonts in Terminal mode
4. Modify the bootstrap and terminal host software to support the new code and use all 8 bits.
5. Check out before and after
#retrocomputing

Der AgonLight ist kein Raspberry Pi, sondern ein echter 8-Bit-Computer mit „Bare-Metal“-Design. Er kombiniert eine 50 MHz eZ80-CPU von Zilog mit einem ESP32 als Grafik- und Sound-Co-Prozessor.
Bootet in Millisekunden direkt in BBC BASIC. Wer Technik ohne Abstraktions-Layer verstehen will, bekommt hier direkten Zugriff auf CPU, Speicher und Register.

https://retrocomputer-dresden.de/agonlight_intro/

#agonlight #z80 #retrocomputing #bbcbasic #dresden #retrocomputerdresden

Arqueologia retrocomputacional: o caso Q1.

https://retropolis.com.br/2024/03/01/arqueologia-retrocomputacional-q1/

#MundoRetro #4004 #8008 #AgonLight #Arqueologia #descoberta #Intel #microcomputador #Q1 #TheByteAttic #z80 #zilog

Repórter Retro 097

https://retropolis.com.br/2023/10/25/reporter-retro-097/

#ReprterRetro #3DO #6502 #AdrianBlack #AgonLight #Algoritmos #Alphasmart #AmigaCD32 #AnimaOClube #AppleII #AppleIIPlus #AppleIIcPlus #Assembler #Assembly #Chernobyl #ChernobylFamily #CircuitoIntegrado #CdigoMorse #Commodore64 #Criptografia #Disquetes #Encontros #eventos #expert #falncia #GNU #Hackaday #Heathkit #Intel8008 #Intel8080 #Jogos #KIM1 #Linux #Macintosh #microsoft #MicrosoftWord #MSDOS #MSX #MSXRio #nerd

Episódio 149 – Periféricos novos para micros clássicos IV – Parte B

https://retropolis.com.br/2024/02/21/episodio-149-parte-b/

#Podcast #2Analog #AgonLight #Amiga #Amiga1200 #Amiga2000 #Amiga500 #Amiga500Plus #Amiga600 #AppleII #AppleIIPlus #AppleIIe #Atari8bits #C64 #ColecoAdam #CommanderX16 #FOENIXC256 #FujiNet #Harlequin #Meatloaf #MEGA65 #OmegaMSXComputer #Omni128K #perifricos #PiStorm #RaspberryPi #rede #RetroModemBoard #RGBtoHDMI #SID #SixtyClone #SMX #SMXHB #SMXMA #SwinSIDNano #ZXOM

@sijnstra thank you for creating and maintaining #vezza. I use it to play games on my #rc2014 and love it. An #AgonLight version would be cool!

The next stage of developing my #Infocom #text-adventure player #Vezza, I'm making it Agon VDP native to take advantage of the new features in the #Console8 VDP development line. Still a work in progress, but the vast majority seems good to go. Why do it? I wanted to play Beyond Zork on the #AgonLight using the extra font features. This means instead of text drawing of maps, you get something a little more graphical. Also, status bars are now drawn for more visual impact. #retrocomputing

Commander X16, um sonho retro se tornando realidade.

https://retropolis.com.br/2023/10/17/commander-x16-sonho-retro-realidade/

#MundoRetro #8Bits #AgonLight #BASIC #CommanderX16 #Commodore #Commodore64 #JackTramiel #The8bitGuy

I recently took advantage of some temporary discounts and acquired the #Console8 by Heber. It's a #retrogame focused package of the #AgonLight, complete with some great joypads that they also make. As part of the induction into the house, I converted the logo into something a little more 8-bit, and updated my logo software. #z80 #ez80 #retrocomputing
You can buy a Console8 here : https://heber.co.uk/agon-cosole8/
You can download the updated logo software & source here: https://github.com/sijnstra/agon-projects/tree/main/bootlogo

I wanted to use more graphics on my #AgonLight and the best project that came to mind was to display #Amstrad #CPC .pal/.scr images. Took a while to get there, and now it works including the same "wipe" effect that the original hardware had due to the unusual RAM layout. Planning to use this for landing pages to create the mood for any game you might load. You can see the source code + binary at https://github.com/sijnstra/agon-projects/tree/main/CPCpic #z80 #ez80 #retrocomputing #retrogaming video shows loader image from Stefan Vogt's Ghosts of Blackwood Manor.

Working on making my telnet for #AgonLight more sane, it's a little better than it was but still has a lot of problems. It's hard to test something when the results depend on the network traffic flow at the time, and many components out of my control. Anyway, for a first time I did manage to get some almost readable data from @Wintermute_BBS RC BBS - thanks for having this running! It feels awesome having an #ez80 talking to a #z80 on the other side of the world!

Using the character to bitmap mapping available in the latest #AgonLight VDP firmware, I've been able to transform an ASCII #curses version of Flappy Bird into graphics. Double-buffering ensures the game plays flicker-free. Before and after images included. Source code and binary here: https://github.com/sijnstra/agdev-projects/tree/main/flagon #retrocomputing #retrogaming #zilog #ez80

Got my Agon Light 2 computer recently and installed CP/M on it (https://github.com/julian-rose/Agon-CPM2.2/tree/playpen). Great little machine, I am surprised how fast it is.
It self-compiles #T3X 16 times faster than a 4MHz Z80 (and clock speed is "only" 5 times faster). It even runs Evazor smoothly! I have added a CP/M binary to the Evazor archive in case you want to try it.
http://t3x.org/t3x/0/programs.html#evazor
#agonlight, #retrocomputing, #CPM, #eZ80

Agon Light Origins edition - A new, very fast, 8bit computer built with modern parts - New revision

Review by Artic Retro

https://youtu.be/_QooZ2Lu-wY

CP/M for Agon Light comes preloaded with VolksForth on drive F:

#AgonLight #Forth #VolksForth

Agon Light Origins edition - A new, very fast, 8bit computer built with modern parts - New revision

Review by Artic Retro

https://youtu.be/_QooZ2Lu-wY

CP/M for Agon Light comes preloaded with VolksForth on drive F:

#AgonLight #Forth #VolksForth

Agon Light Origins edition - A new, very fast, 8bit computer built with modern parts - New revision

Review by Artic Retro

https://youtu.be/_QooZ2Lu-wY

CP/M for Agon Light comes preloaded with VolksForth on drive F:

#AgonLight #Forth #VolksForth

Agon Light Origins edition - A new, very fast, 8bit computer built with modern parts - New revision

Review by Artic Retro

https://youtu.be/_QooZ2Lu-wY

CP/M for Agon Light comes preloaded with VolksForth on drive F:

#AgonLight #Forth #VolksForth

Agon Light Origins edition - A new, very fast, 8bit computer built with modern parts - New revision

Review by Artic Retro

https://youtu.be/_QooZ2Lu-wY

CP/M for Agon Light comes preloaded with VolksForth on drive F:

#AgonLight #Forth #VolksForth

New video! I'm taking a look at the new #AgonLight 8-bit computer system that doubles as a microcontroller-like device with GPIO pins! #RetroComputing #VintageComputing #NewSystem #8bit https://youtu.be/PRcipJ-k_aY

If you're into 8-bit programming and/or graphics you can get a whole range of Retro Jotters on Amazon. The most popular one is the ZX Spectrum one which I've linked here... https://www.amazon.co.uk/dp/B0C47JD15H Good luck with finding the others as the site search engine is absolutely useless. #zxspectrum #retrojotter #c64 #agonlight #amstradcpc #gamingbooks #gamedev #art #pixelart #puttycad

If you're into 8-bit programming and/or graphics you can get a whole range of Retro Jotters on Amazon. The most popular one is the ZX Spectrum one which I've linked here... https://www.amazon.co.uk/dp/B0C47JD15H Good luck with finding the others as the site search engine is absolutely useless. #zxspectrum #retrojotter #c64 #agonlight #amstradcpc #gamingbooks #gamedev #art #pixelart #puttycad

If you're into 8-bit programming and/or graphics you can get a whole range of Retro Jotters on Amazon. The most popular one is the ZX Spectrum one which I've linked here... https://www.amazon.co.uk/dp/B0C47JD15H Good luck with finding the others as the site search engine is absolutely useless. #zxspectrum #retrojotter #c64 #agonlight #amstradcpc #gamingbooks #gamedev #art #pixelart #puttycad

If you're into 8-bit programming and/or graphics you can get a whole range of Retro Jotters on Amazon. The most popular one is the ZX Spectrum one which I've linked here... https://www.amazon.co.uk/dp/B0C47JD15H Good luck with finding the others as the site search engine is absolutely useless. #zxspectrum #retrojotter #c64 #agonlight #amstradcpc #gamingbooks #gamedev #art #pixelart #puttycad

If you're into 8-bit programming and/or graphics you can get a whole range of Retro Jotters on Amazon. The most popular one is the ZX Spectrum one which I've linked here... https://www.amazon.co.uk/dp/B0C47JD15H Good luck with finding the others as the site search engine is absolutely useless. #zxspectrum #retrojotter #c64 #agonlight #amstradcpc #gamingbooks #gamedev #art #pixelart #puttycad

If you're into 8-bit programming and/or graphics you can get a whole range of Retro Jotters on Amazon. The most popular one is the ZX Spectrum one which I've linked here... https://www.amazon.co.uk/dp/B0C47JD15H Good luck with finding the others as the site search engine is absolutely useless. #zxspectrum #retrojotter #c64 #agonlight #amstradcpc #gamingbooks #gamedev #art #pixelart #puttycad

Time for another programming option for the #AgonLight family... #Pascal! I've re-targeted PASTA/80, an open source Turbo Pascal 3 compatible cross-compiler that targets #z80 machines. It's still early days, so expect a lot of weirdness and issues, and things that can be improved. It has a dependency on sjasm+, so there are a few quirks in how I've had to pull together the Agon libraries. You also need a Pascal compiler to compile the compiler. All the instructions, source and some examples are on the github repo: https://github.com/sijnstra/pasta80/tree/agon #retrocomputing

Creating an Entity Component System for My Retro Video Game Engine
Welcome to the next edition of Gamedev The Hard Way, my attempt at #programming a game from scratch for the #AgonLight, using nothing but C. This time I throw away a ton of code and replace it with a shiny new Entity Component System.
https://ncot.uk/videos/creating-an-entity-component-system-for-my-retro-video-game-engine/

Writing a Roguelike in C Part 1
Let’s try to write a Roguelike game in C for the #AgonLight. This is the first video. I explore how the original Rogue and similar games like Nethack generate their own dungeons, then adapt code that draws mazes so my dungeons are a bit more interesting to explore.
https://ncot.uk/videos/writing-a-roguelike-in-c---part-1/

A Retro Game Made With 21st Century Thinking Gamedev the Hard Way
In this abridged video, I walk you through the process of building a text adventure game from scratch on the #AgonLight. Rather than a deep dive into every line of code, this video focuses on explaining the overall structure and design choices behind the project.
https://ncot.uk/videos/a-retro-game-made-with-21st-century-thinking---gamedev-the-hard-way/

https://youtu.be/DHgle5k4LDs

#programming #agonlight #roguelike

The Mini #CommonLISP I have been working on now runs on CP/M with 2416 free cons cells. Enough to load Ken Kahn's tiny PROLOG and run a few simple queries.
The #AgonLight (18MHz eZ80) loads the LISP part of the code (236 lines) in 11 seconds. Simple programs run at acceptable speed, but slightly more complex PROLOG queries take *minutes*. :)
#LISP #CPM #PROLOG #Z80

My latest video where I'm trying to program a game engine from scratch. #programming #agonlight #gamedev

https://youtu.be/-_lKdUPViBk

https://youtu.be/R0S8e3oWSas

The latest installment of my attempts at #programming a retro computer game for the #agonlight is out. This time I show my game's design and explain how I implemented a large multi-screen tilemap to roam about in.