Posts by amoroso@mastodon.technology
(DIR) Post #AMGlNcuWR1y84AZQAa by amoroso@mastodon.technology
2022-06-24T15:55:10Z
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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.https://journal.paoloamoroso.com/z80-mbc2-first-impressions#retrocomputing #z80 #sbc
(DIR) Post #AMGlNdKkrUx7NWqN3g by amoroso@mastodon.technology
2022-06-30T16:16:24Z
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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.https://www.youtube.com/watch?v=Oyh4_6kPShQ#retrocomputing #cpm #sbc
(DIR) Post #AMGlNdjZNEnmcUSBjk by amoroso@mastodon.technology
2022-07-02T15:56:33Z
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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.https://8bitnews.io/archive/2022-07-01/happy-birthday-atari#retrocomputing #z80 #sbc
(DIR) Post #AMGlNe81uIMrqLtirY by amoroso@mastodon.technology
2022-07-03T16:07:04Z
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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.https://www.youtube.com/playlist?list=PLdrSRFPEwMupuDpNmOkXyObBNtkAb-b2K#retrocomputing #z80 #sbc
(DIR) Post #AMGlNeZgFUUBE6pnxg by amoroso@mastodon.technology
2022-07-05T15:56:58Z
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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.https://journal.paoloamoroso.com/porting-a-twirling-bar-demo-to-cp-m#retrocomputing #assembly #z80
(DIR) Post #AMGlNeyUlEKqT4Rcdk by amoroso@mastodon.technology
2022-07-08T16:04:47Z
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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:https://journal.paoloamoroso.com/tag:z80mbc2#retrocomputing #z80 #sbc
(DIR) Post #AMGlNfMbJbcLfpisDI by amoroso@mastodon.technology
2022-07-29T16:41:55Z
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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.#retrocomputing #z80 #sbc
(DIR) Post #AMGlNfkLtIcGrUpqEa by amoroso@mastodon.technology
2022-08-06T16:53:34Z
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This is pretty cool: the Serial USB Terminal Android app on chromeOS on my ASUS Chromebox 3. The terminal is running a CP/M 3.0 session on a Z80-MBC2 Z80 homebrew computer connected to the Chromebox via serial USB.#retrocomputing #android #chromeos
(DIR) Post #AMVFxRCl9TLZ1YX2Jc by amoroso@mastodon.technology
2022-08-13T16:18:56Z
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I got a reasonably priced copy of the book "Z-80 and 8080 Assembly Language Programming" by Kathe Spracklen, 1979. It provides a clear and concise reference and comparison of the Z80 and Intel 8080 instruction sets.I posted some notes on why I like the book:https://journal.paoloamoroso.com/brushing-up-8080-and-z80-assembly#assembly #z80 #books
(DIR) Post #AMVG2tyzaElJj1hKQC by amoroso@mastodon.technology
2022-03-23T17:32:29Z
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I read these great books and often browse them as reference resources on Intel 8080 Assembly and CP/M programming:- "Mastering CP/M" by Alan Miller- "8080/8085 Software Design" by David Larsen et al.#retrocomputing #cpm
(DIR) Post #AMiiMaV72lEZBeiPXU by amoroso@mastodon.technology
2022-08-19T16:25:23Z
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Two-Bit History is a computer history blog "intended primarily for computer people". It's unique because unapologetically technical and in-depth.https://twobithistory.org#retrocomputing
(DIR) Post #AMnFUdNSJ59XXpPyjY by amoroso@mastodon.technology
2022-08-22T16:04:40Z
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For as long as I run my newsletter I struggled to grow the subscriber count beyond 50, which was a hard ceiling. Then I shut down the newsletter, 10 new users subscribed, and the count is now slowly growing. Go figure.Here's the postmortem I published when I discontinued the newsletter:http://newsletter.paoloamoroso.com/issues/mothballing-practicing-google-805881
(DIR) Post #ANADMYeMFgHqawC2Rk by amoroso@mastodon.technology
2022-09-02T15:51:53Z
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I have fond memories of computer manuals of the 1980s, so I got a book on how to write computer manuals in that style.I bought a cheap copy of "How to Write a Computer Manual: A Handbook of Software Documentation" by Jonathan Price, 1985. The book started as a learning resource for Apple's user education team, where Price worked on the Apple ][.#retrocomputing #books
(DIR) Post #ANAE2lgeAg5rBsOJqS by amoroso@mastodon.technology
2022-09-02T19:45:31Z
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@CarlCravens Glad you like it.
(DIR) Post #ANAEQAx8OoRODCGTUe by amoroso@mastodon.technology
2022-09-02T19:49:45Z
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@CarlCravens This book focuses on manuals for ordinary non-tech users.
(DIR) Post #ANTsmHTWX5QSamvAsC by amoroso@mastodon.technology
2022-09-12T06:46:48Z
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@zladuric Some hashtags provide good lists of users who consistently toot about certain tech topics, such as #retrocomputing or #linux
(DIR) Post #ANrX0YqraCIx1W6O92 by amoroso@mastodon.technology
2022-09-23T16:14:03Z
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With my astronaut friend Samantha Cristoforetti aboard, the motion of the International Space Station in a pass over Milan, Italy, brought it prospectively close to an apartment building.I took this photo at dusk at 17:49 UTC on Sep 22, 2022 with my Pixel 4 XL phone at 2X optical zoom.#iss #space
(DIR) Post #ANrY4olaSAzBUlEBFo by amoroso@mastodon.technology
2022-09-23T17:22:35Z
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@EdS Thanks, I experimented with different framing.
(DIR) Post #AOJj6Pzr5W9cHNUJUG by amoroso@mastodon.technology
2022-10-06T18:33:55Z
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Given the upcoming shutdown of mastodon.technology, any suggestions for other culturally close instances with a focus on tech?https://ashfurrow.com/blog/mastodon-technology-shutdown/#mastodon #fediverse
(DIR) Post #AOJjlRKh1cpQIPnMWW by amoroso@mastodon.technology
2022-10-07T07:45:27Z
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@EdS Thanks for the recommendation, I'm going to migrate to Fosstodon as it seems the closest match to Mastodon.technology.