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krisj.dev
kris :)
@krisj.dev
14 followers 25 following 21 posts
i like computers and sometimes other things
Posts Replies Media Videos
Reposted by kris :)
tubetime.bsky.social
now streaming: more reverse engineering!
www.twitch.tv/tubetimeus
a pcb layout
December 20, 2025 at 11:18 PM
Reposted by kris :)
tinytapeout.com
Subscribe to our new youtube channel! www.youtube.com/@TinyTapeout
Tiny Tapeout
More accessible than ever to get your design manufactured on a real chip!
www.youtube.com
November 25, 2025 at 2:58 PM
Reposted by kris :)
xyzenix.github.io
i decided to make a bluesky concept just as an excuse to post something here
UI concept of BlueSky running on Opera 12 on Windows XP. The page has a blue sky background with clouds, a navigation bar on top with the BlueSky logo, a search bar, various links (home, lists, feeds, settings), and the current user on it. Below it, on the left side are tabs for different feeds, with the current feed's posts underneath, and the right side features a textbox for creating new posts and a list of recent messages & notifications, displaying no new messages and no new notifications.
December 6, 2024 at 1:02 AM
Reposted by kris :)
invoxiplaygames.uk
Releasing DaTArrest, a savegame exploit for Rock Band Blitz (even the free trial version) by myself and @ihatecompvir.wetdry.world.ap.brid.gy that can be used to run Grimdoomer's Xbox360BadUpdate hypervisor exploit and gain code execution on a retail Xbox 360!

github.com/grimdoomer/X...
March 9, 2025 at 7:10 AM
krisj.dev
super interesting look into a console that i have fond memories of, here's hoping that something cool will come from this work

icode4.coffee?p=1047
Hacking the Xbox 360 Hypervisor Part 1: System Overview
Diving into the heart of the Xbox 360 security system: the hypervisor. How does it work? Why is it so secure? Find out the answers to these questions and more as I cover the architecture of the Xbox 3...
icode4.coffee
March 4, 2025 at 9:00 PM
Reposted by kris :)
johndmcmaster.bsky.social
Google-Skywater MPW1 and the FOSS ecosystem it spawned will be in our hearts forever. Sad news about Efabless. But hopefully a new champion will arise and the community will rebuild the ecosystem stronger than ever
March 2, 2025 at 6:28 PM
Reposted by kris :)
aleha84.bsky.social
Evening winter courtyard
March 1, 2025 at 7:42 PM
Reposted by kris :)
invoxiplaygames.uk
congrats Grimdoomer on releasing an Xbox 360 hypervisor exploit hoooly shit icode4.coffee?p=1081
Hacking the Xbox 360 Hypervisor Part 2: The Bad Update Exploit
Finding and exploiting bugs in the Xbox 360 hypervisor to create the "Bad Update" exploit.
icode4.coffee
March 3, 2025 at 6:00 PM
Reposted by kris :)
wario64.bsky.social
Command & Conquer source code available on Github github.com/electronicar...

Command & Conquer Archive Footage from Renegade and Generals www.youtube.com/watch?v=qN2g...
February 27, 2025 at 6:37 PM
Reposted by kris :)
invoxiplaygames.uk
hire me im good at the computer
February 24, 2025 at 5:55 PM
krisj.dev
don't tell me i'm going to need to make a hackintosh... i can't even update this vm because it throws an error
February 23, 2025 at 2:47 PM
Reposted by kris :)
tubetime.bsky.social
hit the halfway mark reverse engineering this crazy gate array chip (it's 1 of 2 chips used in the IBM MCGA graphics standard)
very large chip layout. there are 26 columns of countless transistors in the middle. on the outside of the chip are power and ground rings, and a bunch of pads.
February 12, 2025 at 2:48 AM
krisj.dev
please be good 🙏
Picture taken of a desktop screen showing an in-progress Linux Mint installer.
February 6, 2025 at 12:22 AM
krisj.dev
just found out about the picoemp, its going straight on my christmas wishlist - what's the worst that could happen?

github.com/newaetech/ch...
GitHub - newaetech/chipshouter-picoemp: Why not run micropython on your EMFI tool?
Why not run micropython on your EMFI tool? Contribute to newaetech/chipshouter-picoemp development by creating an account on GitHub.
github.com
February 3, 2025 at 2:23 AM
Reposted by kris :)
thea.codes
My Tangara arrived! Look at that cute little thing! And it's @oshwassociation.bsky.social certified open source hardware!

Fantastic work, @erinrose.bsky.social @buzzyrobin.bsky.social @jacqueline.id.au @ailurux.bsky.social!

👏
A photo of the Tangara, a small music player that is reminiscent of the classic iPod. It's shown sitting on a desk next to the box it comes in and a keyboard. It's playing "No Problems" by Ginger Root.
January 30, 2025 at 5:51 PM
Reposted by kris :)
ramen2x.com
I would like to share this wonderful blog post recounting the decompilation project by the main developer on the project, Christian, who I had the absolute pleasure of working with: blaubart.com/blog/the-dec...
The decompilation of LEGO Island | Blaubart.com software engineering
LEGO Island is a Lego-themed action-adventure game developed and published by Mindscape. It was released for Microsoft Windows on September 26, 1997. It's been the subject of a decompilation project I...
blaubart.com
December 31, 2024 at 5:29 AM
Reposted by kris :)
kellygoround.bsky.social
oh this place supports video now i can show you the time my Vectrex made glitch art by saying "scram" and letting out a tortured wail
January 19, 2025 at 6:44 PM
krisj.dev
turning out to be a much longer video than expected :O
January 11, 2025 at 3:04 PM
krisj.dev
what a fascinating project, a very recommended read: dmitry.gr?r=05.Project...
Linux/4004 - Dmitry.GR
Dmitry.GR: Slowly booting full Linux on the intel 4004 for fun, art, and absolutely no profit
dmitry.gr
January 6, 2025 at 11:59 PM
krisj.dev
tried optimising something today, could only squeeze out 10s but it takes 173s to run - back to the drawing board 😔
January 5, 2025 at 1:26 AM
krisj.dev
i added a small CRT-esque visualisation for the FPGA manchester baby, as the real deal had one too :)
December 21, 2024 at 9:18 PM
krisj.dev
i've finally managed to properly interface with a manchester baby reimplementation on fpga! this is the state of the program memory after execution, where 0x1c contains the result.
December 14, 2024 at 11:28 PM
krisj.dev
need me one of these asap
righto.com Ken Shirriff @righto.com · Nov 25
I recently saw an amazing Navajo rug at the National Gallery of Art. It looks abstract at first, but it is a detailed representation of the Intel Pentium processor. Called "Replica of a Chip", it was created in 1994 by Marilou Schultz, a Navajo/Diné weaver and math teacher. 1/n
A Navajo rug with a complex pattern with muted reds, pinks and blues. The pattern consists of various vertical and horizontal rectangles with stripes. Around the border are small alternating black and colored rectangles. The weaving is mounted in a wooden frame and hanging on the museum wall.
December 10, 2024 at 1:47 AM
Reposted by kris :)
urishaked.bsky.social
Dead on arrival! #tinytapeout
December 9, 2024 at 6:52 PM
krisj.dev
i love needing to run a whole ass virtual machine just for one bit of software 😔 totally doesnt ruin the flow at all
December 10, 2024 at 1:10 AM