Sarah K Libman | Marr · @SarahKL
480 followers · 336 posts · Server mastodon.social

The RetroComputing folder is looking good, after a bit of a reorganization and some icon Photoshopping.

#retrocomputing #retrogaming #z80 #trs80 #amiga #mainframe #z80mbc2

Last updated 2 years ago

Paolo Amoroso · @amoroso
1457 followers · 1539 posts · Server fosstodon.org

I wrote two programs for clearing the screen on CP/M-80 and CP/M-86, one in Intel 8080 Assembly for the Z80-MBC2 homebrew computer and the other in Intel 8086 Assembly for the V20-MBC:

journal.paoloamoroso.com/two-c

#assembly #z80mbc2 #v20mbc

Last updated 2 years ago

Paolo Amoroso · @amoroso
1434 followers · 1489 posts · Server fosstodon.org

The cool-retro-term vintage terminal emulator is, well, cool:

github.com/Swordfish90/cool-re

Here are some CP/M Plus programs in cool-retro-term on a Z80-MBC2 homebrew Z80 computer, connected to my Chromebox via a Minicom session on Crostini Linux.

The only issue is coo-retro-term sets the EN keyboard layout and doesn't recognize my IT keyboard. Any fixes?

github.com/Swordfish90/cool-re

#z80mbc2 #retrocomputing #linux

Last updated 2 years ago

Sarah K Libman | Marr · @SarahKL
465 followers · 300 posts · Server mastodon.social

The morning sun is coming through the slats on the blinds and falling on my desk at just the right angle.

#z80 #z80a #retrocomputing #microchip #z80mbc2 #zilog #cpu #computerhistory

Last updated 2 years ago

Paolo Amoroso · @amoroso
1215 followers · 1178 posts · Server fosstodon.org

I tested the Beagle Term terminal emulator with the Z80-MBC2 and V20-MBC homebrew Z80 and Nec V20 computers. It's a Chrome packaged app with good VT100 support.

The screenshots show Beagle Term on my Chromebox running the Catchum and Ladders games under CP/M Plus on the Z80-MBC2, and WordStar and the command processor under CP/M-86 on the V20-MBC.

chrome.google.com/webstore/det

#z80mbc2 #v20mbc #retrocomputing

Last updated 2 years ago

Paolo Amoroso · @amoroso
1094 followers · 921 posts · Server fosstodon.org

@tewha Cool, here you can find some photos of the CP/M single-board computers I use:

#z80mbc2 #v20mbc

Last updated 2 years ago

Paolo Amoroso · @amoroso
906 followers · 670 posts · Server fosstodon.org

The two homebrew CP/M computers I use and love have logos that give them personality.

The Z80-MBC2 Limited Edition features a "Z80 inside" logo similar to the iconic Intel branding. The logo of the V20-MBC Black Edition, a two-flavor ice cream cone, is a nod to its Nec V20 chip with the 8080/8088 dual mode.

#z80mbc2 #v20mbc #retrocomputing

Last updated 2 years ago

Paolo Amoroso · @amoroso
908 followers · 673 posts · Server fosstodon.org

The boot menu of the Z80-MBC2 homebrew Z80 computer has an option, "autoboot", to load and execute a designated file on the device's microSD card. The option runs this tool, which looks like a raw disk editor.

#z80mbc2

Last updated 2 years ago

Paolo Amoroso · @amoroso
908 followers · 673 posts · Server fosstodon.org

You have a working homebrew computer, now what?

Some enjoy the challenge of designing or making a computer kit. I have no hardware assembly skills, so I start from there by learning the operating systems of these devices, exploring software, and coding. I publish ongoing series of blog posts about my retrocomputing projects with these CP/M homebrew computers:

Z80-MBC2 (Z80)
journal.paoloamoroso.com/tag:z

V20-MBC (Nec V20)
journal.paoloamoroso.com/tag:v

#retrocomputing #projects #z80mbc2 #v20mbc

Last updated 2 years ago

Paolo Amoroso · @amoroso
908 followers · 673 posts · Server fosstodon.org

My retro CP/M development environment and setup augmented with modern tools.

In the screenshot, in the Minicom terminal emulator session inside Crostini Linux, Turbo Pascal under CP/M 3.0 is running on the Z80-MBC2 homebrew Z80 computer. The Z80-MBC2 is connected to my Chromebox as in the photo.

The window at left on the chromeOS desktop holds the Turbo Pascal manual, the window at right shows a GitHub gist with the Turbo Pascal code of the CP/M session.

#z80mbc2 #retrocomputing

Last updated 2 years ago

Paolo Amoroso · @amoroso
908 followers · 673 posts · Server fosstodon.org

Miguel Garcia wrote te, a great screen-oriented text editor for CP/M which supports macros, C auto-completion, auto-indentation, automatic lists, and more:

github.com/MiguelVis/te

In these screenshots te is running under CP/M 3.0 on the Z80-MBC2 homebrew Z80 computer, here in the Minicom terminal emulator on Crostini Linux.

#retrocomputing #z80mbc2

Last updated 2 years ago

Paolo Amoroso · @amoroso
908 followers · 673 posts · Server fosstodon.org

Prior to the V20-MBC I got a Z80-MBC2, another homebrew computer by the same maker and with a similar design but with a Z80 CPU instead of a Nec V20. The photos show the device, alone and plugged into my Chromebox.

I've been having a lot of fun with the Z80-MBC2, which runs CP/M and other retro operating systems. I record my experiences and projects with the device in this ongoing series of blog posts:

journal.paoloamoroso.com/tag:z

#z80mbc2 #retrocomputing

Last updated 2 years ago

wildtree · @wildtree
37 followers · 7412 posts · Server mstdn.wildtree.jp

Z80 MBC2動いた!
DMAとIO_OPのLED眩しい😅
t.co/oc5PttkEHS t.co/r5GmxkXWXm

#z80 #z80mbc2

Last updated 5 years ago