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Matt Godbolt

@matt.godbolt.org
4.5K followers 695 following 1.2K posts

Sometime verb, real person, lover of 8-bit computers, husband & father, trying to be a kind person. #blacklivesmatter; trans rights are human rights. he/him

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Reposted by Matt Godbolt
LaurieWired @lauriewired.bsky.social · 18/09/2026
Had fun speaking with @bloopmuseum today at CppCon; if you’re here, swing by their booth while they’re around!

 I haven’t been yet, but they’ve apparently bought out a huge abandoned government building in Pittsburgh and are filling it with a ton of vintage computing equipment.
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Matt Godbolt @matt.godbolt.org · 18/09/2026
The Bloop Museum is awesome! Drove 8 hours to visit it with my son a few months back! Great to hear it's getting some celebrity endorsements :-)
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Matt Godbolt @matt.godbolt.org · 17/09/2026
I think someone took my "please try and hack us and let us know" message too far lol; tons of alerts overnight about traffic anomalies as some google cloud based bot cloud pokes at CE.
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LaurieWired @lauriewired.bsky.social · 15/09/2026
turns out compiler explorer isn't just a website
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Matt Godbolt @matt.godbolt.org · 15/09/2026
c++ pals! What retro gaming stuff would you like to see at CppCon later this week?
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Kieran HJ Connell @kieranhj.bsky.social · 14/09/2026
I finished my port of legendary game Paradroid from the C64 to the BBC Micro! Check it out here to download the disk, play in the emulator or read through the code: bitshifters.github.io/posts/prods/... [Disclaimer: AI assisted with Claude Code.] #retro #retrogaming #bbcmicro #c64 #demoscene
bitshifters.github.io
Paradroid, by Bitshifters
Acorn, BBC Micro and Retro Computer Code & Demos
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Matt Godbolt @matt.godbolt.org · 12/09/2026
Having a great time with my son at #VCFMW - off to see @inversephase.bsky.social talk next!
My son and I at #VCFMW - selfie showing middle aged man and a young adult standing in front of a crowded set of booths in a large warehouse/conference centre
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Matt Godbolt @matt.godbolt.org · 10/09/2026
Work wanted to film me talking about things that I care about ... so obviously I talked about reading assembly and why it still matters :) www.youtube.com/shorts/cZbkQ...
youtube.com
Do developers still need to read assembly?
YouTube video by Hudson River Trading
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Matt Godbolt @matt.godbolt.org · 09/09/2026
Arg. What happened to Google home stuff? I used to come home and "hey Google, play some music please". Today I said that three times: - sure here's a playlist called sunflower - sure here's some (giant long playlist name I didn't recognise) - sure here's a playlist called "some music" Srsly...
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Matt Godbolt @matt.godbolt.org · 09/09/2026
Can someone help my pal make it up to Chicago for #vcfmw ? Thanks in advance!
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Jason Turner @lefticus.bsky.social · 07/09/2026
Running Conferences and Processing Credit Cards - Kevin Carpenter - CppCast 411 / C++Weekly 549 youtu.be/hPjwPyAAqYg
youtu.be
Running Conferences and Processing Credit Cards - Kevin Carpenter - CppCast 411 / C++Weekly 549
Mathieu and Jason are joined by Kevin Carpenter to discuss all aspects of being involved with a conference: from regular attendee, to volunteering, to speaker, volunteer coordinator, and catering…
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Matt Godbolt @matt.godbolt.org · 30/08/2026
Wondering vaguely if I'm now more an "executive programmer" these days.
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Matt Godbolt @matt.godbolt.org · 30/08/2026
In which I fart about to recreate a silly thing I did at Google, 16 years ago... xania.org/202608/recre...
xania.org
Recreating a 2010 Experiment — Matt Godbolt’s blog
Hooking a BBC Master up as a serial terminal to browse the web again
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Matt Godbolt @matt.godbolt.org · 27/08/2026
What time is it? Computerphile time! Sean does another great job of editing my word salad of excitement as I go into how your computer tells the time!
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Eric Niebler @ericniebler.com · 23/08/2026
I finally got `import std` to work on @compiler-explorer.com godbolt.org/z/3P5b11f5M #cpp
screenshot of Compiler Explorer compiling a C++ program that does `import std`
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Jason Turner @lefticus.bsky.social · 22/08/2026
Book now for an upcoming C++ workshop! Sep 12-13 (Aurora, CO): cppcon.org/class-2026-b... Sep 21-22 (Kongsberg, NO): ndctechtown.com/tickets Oct 14 (Breda, NL): cppunderthesea.nl#workshops
cppcon.org
C++ Best Practices 2026 | CppCon
C++ Best Practices is a two-day onsite training course with programming examples, taught by Jason Turner. It is offered at the Gaylord Rockies from 09:00 to 17:00 Aurora time (MDT) on Saturday and…
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DevMsg.txt @devmsg-txt.bsky.social · 19/08/2026
All code in this game which did not originate from Micro Power LTD is dedicated to Tracey Dianne Nicholson... (C) Micro Power LTD and written by Gary Partis - ILTDN the Mega Being
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Matt Godbolt @matt.godbolt.org · 16/08/2026
So close.... some people have individual videos with more than a million but my goal is to get a million in total :) youtube.com/@mattgodbolt
A Tidbyt display showing a ticket of Matt Godbolt video views: 22k subs and 963k views
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Matt Godbolt @matt.godbolt.org · 16/08/2026
Get a 10% discount on Compiler Explorer swag with this link: shop.compiler-explorer.com/promo/MIDAUG... to celebrate, er, 5199 days of CE?! Yay!
shop.compiler-explorer.com
Compiler Explorer
The official Compiler Explorer shop! Come show your support for CE and get cool gear!
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Ólafur Waage @olafurw.com · 15/08/2026
DOOM In Space with Voice Commands youtube.com/shorts/1ULb2...
youtube.com
DOOM In Space with Voice Commands #gaming #doom #nordic #norway #space
YouTube video by Ólafur Waage
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Matt Godbolt @matt.godbolt.org · 13/08/2026
Well, I let myself get distracted as to why my Spectrum emulator's newer versions weren't as fast as the older ones...as is the way a couple of single line changes and now they're beating the old way comprehensively... I should be concentrating on C++26 stuff but I can't help myself!
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Matt Godbolt @matt.godbolt.org · 11/08/2026
Ok...I am now cautiously optimistic about what cool tricks I can play with C++26 (obviously for my emulator....)
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Matt Godbolt @matt.godbolt.org · 10/08/2026
Poking about with compile time consteval programming. Finally understanding why @hanicka.net wants everything to be constexpr. Also, trying to bridge the gap from compile time data to static constants at runtime is painful...
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Ólafur Waage @olafurw.com · 10/08/2026
[back in the day] Low level programmers: "It's all about optimizing every byte and every cycle, use as little RAM as you can" Other devs: "Nonsense. We have plenty of RAM" [today] Low level programmers: "Well well well"
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Matt Godbolt @matt.godbolt.org · 10/08/2026
Some hobby JavaScript work (admittedly with lots of LLM help) has led to some jsbeeb updates too: hqx support, disc structure visualiser, HFE disc image archive support too. Nice to knock out some very old todos (mostly while I was gardening!)
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Matt Godbolt @matt.godbolt.org · 10/08/2026
Did some C++ hobby coding for the first time in ages. Trying out some C++26 stuff and oh gosh, compiler errors are not helpful, are they!? GCC 16.2 and some "X cannot be cast to X" type errors...and std::string_view is not structural so I can't use it how I'd like... Had to step away in frustration
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nocturnalplant @nocturnalplant.bsky.social · 07/08/2026
It's Bandcamp Friday and I released my first original EDM track! #music #electronicmusic #indiemusic nocturnalplant.bandcamp.com/track/photos...
nocturnalplant.bandcamp.com
Photosynthesis, by nocturnalplant
track by nocturnalplant
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Inverse Phase @inversephase.bsky.social · 07/08/2026
Are you in the US and trying to order a Pretty Eight Machine vinyl from inversephase.bandcamp.com/album/pretty... for #BandcampFriday? Only folks in Europe or the UK can order them right now from @bandcamp.com - US folks, order at www.savepoint.store/product/pret... or visit @bloopmuseum.bsky.social
inversephase.bandcamp.com
Pretty Eight Machine SE, by Inverse Phase
13 track album
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LaurieWired @lauriewired.bsky.social · 05/08/2026
Excited to be giving a keynote at CppCon 2026 this September, go check it out!
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Etrigan (unrelated) ✌️🏈 @etrigan.bsky.social · 30/07/2026
Raddle is an occasionally infuriating word puzzle that does not fund hate.
raddle.quest
Raddle — Word transformation game
A daily word game by Sandy Weisz
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Ólafur Waage @olafurw.com · 31/07/2026
Why would you need to download and install code libraries these days? Just ask your AI to add the feature into your own codebase... It's simpler than package management in C++ (this has been a C++ package management joke post, please behave accordingly)
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LaurieWired @lauriewired.bsky.social · 30/07/2026
Full Video: www.youtube.com/watch?v=M_72...
youtube.com
The LEAST Private Operating System Ever Created
YouTube video by LaurieWired
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L Break Into Program @breakintoprogram.co.uk · 24/07/2026
Here are some words what I wrote.
breakintoprogram.co.uk
I Accidentally Wrote an Emulator (Part 4) - L Break Into Program, 0:1
In the last three blog posts, I managed to get the emulator booting up and displaying the famous Sinclair copyright message in an SDL window. But I had no way to interact with the emulator, notably th...
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Mark Moxon @markmoxon.bsky.social · 24/07/2026
Two-player #BBCMicro Elite has just become the first game ever to support all the buttons on twin Delta 14B joysticks So two players can dogfight in Elite without either of them needing the keyboard For some of us, this is a dream come true! And it justifies all this hardware I keep buying... 😀
Two-player EliteKey legend for the Delta 14B in two-player EliteOne Delta 14B joystick and the 14B/1 adaptor box
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L Break Into Program @breakintoprogram.co.uk · 24/07/2026
#BBCProms
Girl with head in tuba meme
Girl with head in tuba: “Me wittering on about emulators”
Girl playing tuba: #BBCProms
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Sinclair Research @sinclairresearch.bsky.social · 23/07/2026
Did you know Linus Torvalds wrote a software blitter called GMOVE for the Sinclair QL? The QL Preservation Project has archived it along with 4GB of QL software, all 17 volumes of QL Today magazine, and even a playable Bandersnatch. Incredible resource: www.sinclairql.net
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Matt Godbolt @matt.godbolt.org · 23/07/2026
Finding a V8 optimisation bug was not on my bingo card for July and yet... issues.chromium.org/issues/53780... Sometimes it *is* a bug in the compiler :)
issues.chromium.org
Chromium
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Jason Turner @lefticus.bsky.social · 23/07/2026
Struggling to deal with slop and manage PRs in your code base? This is your last chance to get my new book, "Make Bugs (nearly) Impossible" at a pre-release price for as low as $4.99 leanpub.com/makebugsnear... I'm known for C++ content - but this book is language agnostic.
leanpub.com
Make Bugs (nearly) Impossible
Resisting human and AI slop in an LLM age while keeping code clean and maintainable.
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L Break Into Program @breakintoprogram.co.uk · 20/07/2026
As a seasoned assembly language hack, I'm interested in the code that compilers generated, and the optimisations they've used. This is a fascinating online resource by @matt.godbolt.org that sheds a lot of light on that.
godbolt.org
Compiler Explorer
Compiler Explorer is an interactive online compiler which shows the assembly output of compiled C++, Rust, Go (and many more) code.
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Ólafur Waage @olafurw.com · 19/07/2026
With the amount of body checking and tackling you would think this was American Football and not Football in America.
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Alice Averlong 🏳️‍⚧️ @alice.averlong.com · 17/07/2026
why does the C64 port of Nuts & Milk (called HOT POP for some reason) look like it should be a ZX Spectrum game?
Hot Pop for the C64. A simple single-screen platformer, with little blobby player & enemies. Each sprite & background tile is a single solid color, or a single color and black (the background color)
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Inverse Phase @inversephase.bsky.social · 14/07/2026
At last, I can finally nuke my account over there
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Matt Godbolt @matt.godbolt.org · 16/07/2026
Apparently my YouTube channel is 11 today! The stats tell me my most watched video is one I did very early on about how Wolfenstein 3D (the DOS era game) worked. I've been threatening to make a Doom and Quake followup ever since...oops. www.youtube.com/channel/UCC3...
Notification: "Congrats your channel is 11 today!" from YouTubeTop 5 screenshot:
1 Wolfenstein 3D -> 290k views
2 Live Stream: C++ coding: 83k views
3 Meltdown And Spectre: 33k views
4 AoCO day 1: 33k views
5 5 Things your CPU does for you: 32k views
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Matt Godbolt @matt.godbolt.org · 14/07/2026
Everything you never wanted to know about CPUs, clocks, compilers and confounding factors for benchmarking! #cppnow2026 www.youtube.com/watch?v=EU_n...
youtube.com
Keynote: Benchmarking - It's About Time - Matt Godbolt - C++Now 2026
YouTube video by CppNow
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Matt Godbolt @matt.godbolt.org · 12/07/2026
Sounds like either a threat or a bid to attract Americans by pointing out flaws in their healthcare?
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Matt Godbolt @matt.godbolt.org · 10/07/2026
New podcast episode: Never Twice the Same Colo(u)r Matt records from the wrong continent and explains how he taught his computer to be a 1950s television. Ben guesses his way to the secret of the colo(u?)r burst and wins today's podcast. Listen at: twoscomplement.org#podcast/neve...
twoscomplement.org
Two's Complement
A Programming Podcast by Ben Rady and Matt Godbolt
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George Monbiot @georgemonbiot.bsky.social · 08/07/2026
Poster promoting Count Binface, in the famous Obama style
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Jason Turner @lefticus.bsky.social · 04/07/2026
#badhumanart attempt 23. #notai I tried (and failed) to capture this awesome phonebooth I just saw in Folkestone, UK
bad watercolor phonebooth at nightawesome photo of phonebooth at night
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Jason Turner @lefticus.bsky.social · 29/06/2026
FYI, I'll be speaking at the Dublin C++ User's Group tomorrow night! www.meetup.com/cppdug/event... I hope to see you there. (please sign up appropriately on the meetup page)
meetup.com
The latest & greatest C++ features talk : Jason Turner, Tue, Jun 30, 2026, 8:00 PM | Meetup
Hello Everyone, **Please Note: The meeting has changed its start time from 19:00 to 20:00 due to an overbooking at the venue. The talk will go on until 22:00. If anyone ha
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