Apollo-11
linux
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Apollo-11 | linux | |
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127 | 980 | |
56,371 | 170,074 | |
- | - | |
4.6 | 10.0 | |
about 2 months ago | 1 day ago | |
Assembly | C | |
GNU General Public License v3.0 or later | GNU General Public License v3.0 or later |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Apollo-11
- Original Apollo 11 Guidance Computer (AGC) source code
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Mistral CEO confirms 'leak' of new open source AI model nearing GPT4 performance
I often like to think about https://github.com/chrislgarry/Apollo-11 as an analogy. It's public domain with available source, in the assembly language in which it was written... so it fills all the definitions of OSS!
But the process by which that code arose, the ability to modify any line and understand its impact (heh) on a real execution environment, is dependent on a massive process that required billions of dollars and thousands of the smartest people on the planet. For all intents and purposes, without that environment, it is as reliably modifiable as an executable binary in any other context - or a set of weights, in this one!
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Can a Transformer Represent a Kalman Filter?
But can a Transformer run on the Apollo Guidance Computer?
https://en.wikipedia.org/wiki/Apollo_Guidance_Computer
Frequency 2.048 MHz
Memory 15-bit wordlength + 1-bit parity
2048 words RAM (magnetic-core memory)
https://github.com/chrislgarry/Apollo-11/blob/master/Luminar...
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TIL an Oxford University physicist claimed that for the moon landing conspiracy to be true, around 411,000 people would’ve needed to keep it secret. He also suggests the hoax would’ve broken down in 3.68 years.
You can look at the Colossus 2A code written by Margaret Hamilton and her very small team on Github.
- "Temporary" code in Apollo 11's lunar landing guidance equations (1969)
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SpaceX poised for 'mid-November' launch of second Starship test flight
"Burn Baby Burn" might be even more apt!
https://github.com/chrislgarry/Apollo-11/blob/master/Luminar...
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Software Disenchantment
My more positive take on this: our runtime environments are bloated because we have ways to enable trust, stability, and iteration speeds that people wouldn't have dreamed of in years past.
Your Notion desktop app and Google Chrome both support embedding & displaying multimedia content that's controlled by people that you may not trust, but they can draw on decades of engineering to sandbox that content. They can independently be updated without worrying about a centralized `flexbox.dll` that may or may not be the right version. They do not require building a new executable to make the vast majority of UI changes. And the cost is simply storage space and initial download bandwidth.
We can look with rose-colored glasses at an era of "every byte of assembly has been hand-crafted." I, too, look in awe at what was achieved with such things as https://github.com/chrislgarry/Apollo-11/tree/master/Luminar... . But that software, per https://en.wikipedia.org/wiki/Apollo_Guidance_Computer#Softw..., took 1400 person-years of work.
We have to compare apples to apples - the abstractions we have today would not prevent such a piece of software from being built, and indeed would allow us to build that exact software, even bit-for-bit the same, much more easily due to abstractions on our tooling itself. We have not departed a world where, given a nation-state budget, one could pay for 1400 person-years of work and create the AGC (though one might make arguments about the distraction levels of modern society, but that's a different thing entirely).
But we also exist in a world where I can build and ship a cross-platform video chat application in an afternoon (well, not counting app store approvals) and be reasonably confident that my app will be compatible with, and secure on, practically any computer or mobile device sold in the past half decade, regardless of how many other apps may have been installed on each device. I'd venture to say that Apollo engineers would, and do, find this aspect of our world fascinating, too.
- NASA's Voyager Team Focuses on Software Patch, Thrusters
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Margaret Hamilton stands next to her handwritten code for the lunar missions
Thankfully it was eventually migrated to GitHub
linux
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Linus Torvalds adds arbitrary tabs to kernel code
These are a bit easier to see what's going on:
https://github.com/torvalds/linux/commit/d5cf50dafc9dd5faa1e...
https://github.com/torvalds/linux/blob/d5cf50dafc9dd5faa1e61...
Unfortunately Github doesn't have a way to render symbols for whitespace, but you can tell by selecting the spaces that the previous version had leading tabs. Linus changed it so that the tokens `default` and the number e.g. `12` are also separated by a tab. This is tricky, because the token "default" is seven characters, it will always give this added tab a width of 1 char which makes it always layout the same as if it were a space no matter if you use tab widths of 1, 2, 4, or 8.
- Show HN: Running TempleOS in user space without virtualization
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PfSense Software Embraces Change: A Strategic Migration to the Linux Kernel
There was also a Gentoo effort to run atop FreeBSD[0]. The challenge of course is that afaik none of the BSD kernel ABIs are considered stable. The stable interface is the BSD libc. That said, with binfmt_misc, I don't see a reason you couldn't just run (at least some) FreeBSD binaries on Linux with a thin syscall translation layer (rather something like qemu-system) and then your layer hooked via binfmt_misc. I'm not aware of anyone who has done this for FreeBSD, but prior efforts existed as alternate binfmts for SysVr4/5 ELF binaries[2]. Either way would take some elbow grease, but you *might* even be able just reuse binfmt_elf and just have a new interpreter for FreeBSD elf.
[0] https://wiki.gentoo.org/wiki/Gentoo_FreeBSD
[1] https://docs.kernel.org/admin-guide/binfmt-misc.html
[2] https://github.com/torvalds/linux/blob/master/fs/binfmt_elf....
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Improvements to static analysis in GCC 14
> The original less-than check was deemed incorrect
It was only deemed incorrect because of an information leak. Not because it's a valid use-case for user space to copy smaller portions of *hwrpb into user space. https://github.com/torvalds/linux/commit/21c5977a836e399fc71...
- Linus Torvalds accepts a merge commit to the Linux kernel
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TinyMCE (also) moving from MIT to GPL
Correct. And the combined work needs to carry the MIT license text and copyright attributions for the MIT software authors. With binary distribution it must also be overt, not hidden in some source code drop, but directly accompanying the binary.
Many people who talk about relicensing never credit the MIT developers or distribute the MIT license text. "Because it's GPL now."
I don't think that you believe that, but many developers do.
Some don't see the need for source code scans for Open Source compliance, because the license.txt says GPL, so it's GPL. Prime example is the Linux kernel. There is code under different licenses in there, but people don't even read https://github.com/torvalds/linux/blob/master/COPYING till the end ("In addition, other licenses may also apply.") and conclude it's simply GPL 2 and nothing else.
Also be aware that sublicensing is not the same as relicensing.
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Linus Torvalds is looking for a more modern GUI editor
> Does he have something against it?
He notoriously hates GNU Emacs, yes.
https://marc.info/?m=122955159617722
https://github.com/torvalds/linux/blob/master/Documentation/...
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The Linux Kernel Prepares for Rust 1.77 Upgrade
So If we would only count code and not comments, it is only 9489 LoC Rust. Which would be about 0.03% and if we take all lines and not only LoC it would be around 0.05%
[0] https://github.com/XAMPPRocky/tokei
[1] https://github.com/torvalds/linux/commit/b401b621758e46812da...
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Proposed Windows NT sync driver brings big Wine/Proton performance improvements
AIUI fsync is built on futex_waitv which has been upstreamed. So this has to be more than that.
https://github.com/torvalds/linux/commit/a0eb2da92b715d0c97b...
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Tell HN: GitHub no longer readable without JavaScript
git clone --no-checkout --depth 1 https://github.com/torvalds/linux.git $dir
What are some alternatives?
DOOM - DOOM Open Source Release
zen-kernel - Zen Patched Kernel Sources
microwatt - A tiny Open POWER ISA softcore written in VHDL 2008
DS4Windows - Like those other ds4tools, but sexier
midimonster - Multi-protocol control & translation software (ArtNet, MIDI, OSC, sACN, ...)
winapps - Run Windows apps such as Microsoft Office/Adobe in Linux (Ubuntu/Fedora) and GNOME/KDE as if they were a part of the native OS, including Nautilus integration.
WebKit - Home of the WebKit project, the browser engine used by Safari, Mail, App Store and many other applications on macOS, iOS and Linux.
Open and cheap DIY IP-KVM based on Raspberry Pi - Open and inexpensive DIY IP-KVM based on Raspberry Pi
Godot - Godot Engine – Multi-platform 2D and 3D game engine
serenity - The Serenity Operating System 🐞
GraphRedex - An interactive semantics explorer
DsHidMini - Virtual HID Mini-user-mode-driver for Sony DualShock 3 Controllers