Is emulating an old processor #retro enough? What if it's an old processor doing the emulation? Developing a #Z80 emulator on my #eZ80 CPU. Its Zilog all the way down!
https://www.dinoboards.com.au/2025/06/08/green-and-gold.html
#RC2014 #RCBus #MSX

The shoe’s on the other FAFOOT.

Thanks @LaurentFr And yes there are.
https://github.com/peterzieba/5Vpld is an excellent consolidation of all the different ways to code em. I used wincupl as the yosys/verilog option does not support tristate pins. I packaged a full toolchain into a single docker image to make it easier for me.

I have 2 wip repos:
https://github.com/dinoboards/vga-for-rc
and https://github.com/dinoboards/cpld-toolchain

Doing the best I can to distract myself from the madness of the world. Just powered on my latest design for the #eZ80 on #RCBus. A 5V #VGA graphics module. 640x480 @ 256 glorious #retrocomputing colours. As the guy in the basement would say "it freakin works!"

I have listed my eZ80 for RC kit on @lectronz . EU customers may find its support for VAT collection more convenient. The store is open to all.

https://lectronz.com/products/ez80-for-rc

Would you like my other kits(Yellow MSX) listed here also?

working on the challenge of implementing #bbcbasic for the #eZ80 with full graphic support (with #V9958 video). I had forgot just how capable the #bbcbasic graphics system was. Long way to go - but got the little rocket demo from the original manual working... #RC2014 #RCBus #retrocomputing

Better Than OPL3? The FM Chip Nobody Talks About

https://slrpnk.net/post/17865485

Just updated the listing for the #eZ80 For RC kit on Tindie. Now with a bigger battery (CR2450). Upgrade option available, for existing owners. #RC2014 #RCBUS #retrocomputing https://www.tindie.com/products/dinotron/ez80-for-rc/

I have new product in my Tindie Store. Combined with my patch for #RomWBW - you can access many types of USB devices from your #Z80 #RC2014 #RCBus systems. https://www.tindie.com/products/dinotron/usb-for-rc/

Am I dreaming? Can I port #Wolfenstein3d to my #eZ80 on #rcbus. Might be hard on a stock #V9958 VDP, but perhaps my fpga version of it.

@SM0RVV Great to hear its arrived. Hope you have fun with the build - and yes those pins are small - so don't sneeze! Good tweezer, clean desk, some patience and you will be fine. Good luck😀

@dinotron There are now only 2 left 😃
Thanks for putting the kit up on Tindie

I have 3 of my #eZ80 for #RCBus and #RC2014 kits, available on my Tindie store. Special Introductory Offer.

https://www.tindie.com/products/dinotron/ez80-for-rc

ez80 continues to learn old tricks.

https://youtu.be/qMu8Gz7rkQ0

@hp still experimenting a bit. Take my time with it. Use a bit of flux and soldering iron. Start with one pin. Then another on the opposite side. Then gently let the solder and flux flow with the iron. Don't have a microscope - have a magnifying light that helps a bit.

@andymccall not quite. There are some critical and subtle differences between the chips. Some software needs to be patched to work. Have a look at my hackaday project for some of the issues.

@gilesgoat It's my design. Hence my surprised state of amazement when it works 😁

Always amazed when it works - hand soldered another LQFP-100 ez80 CPU.

https://hackaday.io/project/196330-ez80-cpu-for-rc2014-and-other-backplanes

is it just me - or is poor hackaday.io #hackaday being hacked? I hope they are ok.

I did see some spamming accounts flooding the site a few days ago with adds for fake doctor certificates!

@stefanie Thats really cool. Looking forward to hearing how it progresses. Cheers