Mastodawn

Astatin 🐰 Dev Vtuber 1d ago

Programming in Assembly for the Gameboy

Prepare your neurons, we're going to fix some VRAM access timing issues~

Join me !! https://www.twitch.tv/astatinchan/

#vtuber #twitch #stream #gameboy #gamedev #gameboydev #retrocomputing #assembly #Z80 #happyBunny

AstatinChan - Twitch

Programming in Assembly for the Gameboy - Fixing the writes to VRAM outside of VBlank issues~

Twitch

Alanna 🏳️‍🌈🏳️‍⚧️3d ago

Retro Computing Nerds, especially Z80! I'm trying to use DeZog to reverse engineer a ROM routine. I need to implement bank switching via the ioMMU config. I have it half working, but it doesn't appear to switch properly unless I code case for all banks. Does anyone have any advice on this? I have been looking at DeZog's source code and half getting somewhere, but the documentation is vague.

#retrocomputing #z80 #dezog

Shawn Sijnstra 3d ago

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

FREEZE64.com 3d ago

## PRE-ORDER OPEN ###
FREEZE-ZX magazine issue 04 for the #ZXSpectrum.
Pre-order and full details at:
https://freeze64.com/freeze-zx-issue-4/
I'm looking to start posting these out at the end of August 2026.
#Z80 #Speccy #RetroGaming #IndieGames #gamedevlife

FREEZE64.com 3d ago

As we work on FREEZE-ZX issue 04, our lovely, supportive Readers share their love for the current issue, which features new & exclusive #ZXSpectrum #Z80 #Speccy content.
https://freeze64.com/freeze-zx/
#RetroGaming #IndieGames

Extreme Kits Ж 5d ago

RomWBW Pi Pico2 CPM based Z80 computers back in stock.

Both Acrylic and Wooden cases.

#cpm #retroComputing #RomWBW #z80

https://extkits.co.uk/product/pico-romwbw/

FREEZE64.com 5d ago

The next few issues of FREEZE64 and FREEZE-ZX ‘zine to come out of FREEZE Towers.
Busy, busy 😃👍
https://freeze64.com
https://freeze64.com/freeze-zx/
#Commodore64 #C64 #Commodore64Ultimate
#ZXSpectrum #Speccy #Z80
#RetroGaming #RetroGames
#IndieGames #GameDev

exuro May 12

Trying to run a PCF8584 for I2C on my Z80 breadboard computer. Following the flowcharts on page 15 and 16 of the datasheet ( https://content.arduino.cc/assets/PCF8584.pdf ) gets the message on the bus succesfully, but it keeps SDA and SCL pulled low despite writing 0xC3 to write the stop condition, even if repeated with some waiting in between.
Anyone who has faced a similar problem that knows how to fix it?
#z80 #electronics