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** What is an addressing mode? **
In a recent post I referenced addressing modes. But what the heck are they!?

Setting the stage

The instruction register holds the program instruction that is currently being run.

A fixed number of bits within the instruction register represent the operation, e.g. “op. code” — examples of these instructions include things like add, subtract, load, and store. We can imagine the instruction register like this:

[![ASCII diagram of … ⌘ Read more

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** Notes on 6502 Assembly **
The NES runs a very slightly modified 6502 processor. What follows are some very introductory, and not at all exhaustive notes on 6502 Assembly, or ASM.

If you find this at all interesting, Easy 6502 is a really great introductory primer on 6502 Assembly that lets you get your hands dirty right from a web browser.

Numbers

Numbers pre … ⌘ Read more

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Self-hosting my calendar and contacts using Baïkal
I recently moved my emails to Purelymail. And since I also used the contacts and calendar synchronization feature of my previous email provider, I also transferred the contacts and calendar entries to Purelymail via WebDAV using WinSCP. ⌘ Read more

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Everything new from Universe 2021
Since last year’s GitHub Universe, we’ve shipped more than 20,000 improvements to GitHub for developers, open source communities, and enterprise teams. Here’s a comprehensive overview of what we’re announcing at Universe this week. ⌘ Read more

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Apple’s event on Monday is bringing, as always, speculation to the table. One thing most outlets seem to agree is the introduction of an “M1X” chip, thought Apple might call it differently. M1X might also mean, M1(we don’t know what comes after, or next generation). Either way, I would really like to see the return of the 27” iMac, but I will not hold my breath. Nevertheless, Monday is going to be an exciting day for many, including me! 🍎

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Revised enterprise DPA with new standard contractual clauses
As part of GitHub’s strong commitment to developer privacy, we are excited to announce updates to our privacy agreements in line with new legal requirements and our own robust data protection practices. ⌘ Read more

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** How to install Uxn on macOS **
Uxn is an esoteric stack-machine with 32 bit instructions. It exists someplace at the intersection of a GameBoy, 6502 ASM, an Apple II, Forth, RetroForth, the z80, a Sinclair ZX Spectrum, and“what if Nausicaä from Studio Ghibli’s Nausicaä of the Valley of the Wind used a computer?” It is tiny, unlike most anything else around these days, and, once you wrap your head around it, pretty fun.

I won’t go into how to develop for it … ⌘ Read more

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30 free and open source Linux games – part 3
With Linux celebrating it’s 30 year anniversary, I thought I’d use that as an excuse to highlight 30 of my favorite free and open source Linux games, their communities, and their stories. If you’ve haven’t ⌘ Read more

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Gajim: Gajim 1.4 Preview: Workspaces
The Gajim team has been hard at work in the past months to prepare the next v1.4 release. The upcoming version brings a major interface redesign. In this post, we explain how the new interface works and what remains to be decided or implemented before the release.

Of course, your feedback is important! No interface can please everyone, so please react to this post with how this change would impact you positively and negatively, and ideas you have to make it even better … ⌘ Read more

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