I bought this awesome homebrew Z80 single-board computer:
It was mostly an impulse buy but there are other motivations I explained here:
I made chromeOS detect the Z80-MBC2 Z80 computer connected via USB by... re-plugging the board. In the screenshot, see the Z80-MBC2 booting up CP/M 3.0 in a Minicom session under Crostini Linux. More details here:
Time to play with this awesome little gadget. The "Z80 inside" logo alone is worth the product.
In this Minicom terminal emulation session, an Intel 8080 Assembly hello world demo runs under CP/M on a Z80 homebrew computer.
Nothing fancy, but for me it's an incredible personal achievement. I assembled the demo's 8080 source with an assembler I wrote myself. I posted a bit more about the project here:
Playing with the Z80-MBC2 is a fun retrocomputing project. So here are the obligatory vintage cool-retro-term screenshots of this Z80 homebrew computer running CP/M 3.0 and a couple of games.
I've been using the Z80-MBC2 Z80 homebrew computer for over a week, so I posted my early impressions about the device, its value and potential, and the issues I'm facing.
I ported to CP/M my Intell 8080 Assembly demo of a twirling bar animation.
Here is the demo running under CP/M 3.0 on the Z80-MBC2 Z80 homebrew computer. The Minicom session controlling the Z80 board is in the Crostini Linux container of chromeOS on my Chromebox.
8bitnews featured my Z80-MBC2 projects in issue 55. This is so cool, many thanks to the editors Jan and Bastian!
8bitnews.io is my favorite retrocomputing newsletter.
I created a YouTube playlist about the Z80-MBC2 Z80 homebrew computer.
The videos are screencasts demonstrating various features of the device and my projects with it, such as feature walkthroughs, running programs, programming sessions, and so on. So far there are only a handful of videos, but I'll publish more.
I posted some notes on porting to CP/M, building, and running an Intel 8080 Assembly demo on the Z80-MBC2 Z80 homebrew computer. The demo is an ASCII animation of a twirling bar.
I'm having a lot of fun playing with the Z80-MBC2 Z80 homebrew computer.
To document what I learn, I'm publishing to my blog a series of posts with updates, resources, code, tips, videos, and more on my journey to explore the device. These posts are grouped here, where new ones will show up:
I'm playing with UCSD p-System, one of the operating systems that come with the Z80-MBC2 Z80 homebrew computer. Here's a demo program that plots a sine wave.
The menu system is easy, but I'm not sure I understand how to go back one level. Pressing Q works most of the times but not all. I tried ESC, Backspace and a few more keystrokes without success.
I connected to the Z80-MBC2 homebrew Z80 computer from an Android terminal emulator on chromeOS. Here are my early impressions:
paolo.. scusa se OT . si riuscirebbe a far sbarcare forumastronautico ( anche ) su mastodon ?
@goosey The board also provides CP/M 2.2, Q/PM, UCSD P-System, Collapse OS, BASIC, and a few more system options.
very nice indeed!
I've actually been running qpm instead of vanilla cpm2.2 for several years now and have had exactly 1 compatibility issue. (source for a dbaseii add-on checked CPMVER for exactly 22 and qpm reports 27. nuked the check as it was silly anyway)
I mostly do a couple of things on CP/M. First, I run the Assembly code I write with the development tools I create, e.g. my own Intel 8080 toy assembler. Also, I get to know an operating system I've always been curious about, as back then I never got a chance to own or use CP/M machines.
@ScottE There are a number of web terminal emulators based on the Serial Web API, but they're pretty limited and don't support file transfer. Here's an example:
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