Travis Goodspeed
@travisgoodspeed.bsky.social
Author of books and tools for reverse engineering. Studebaker driver, but an awful mechanic. Home chip decapsulation.
Currently writing a new assembler, to be released in February.
Currently writing a new assembler, to be released in February.
Reposted by Travis Goodspeed
Celebrated Navajo (Diné) artist Marilou Schultz recently completed a striking weaving. Although this rug may appear abstract, it is a representation of the wiring inside an integrated circuit. It shows the 555 timer, said at one point to be the world's most popular IC. Let's take a closer look...
September 6, 2025 at 3:25 PM
Celebrated Navajo (Diné) artist Marilou Schultz recently completed a striking weaving. Although this rug may appear abstract, it is a representation of the wiring inside an integrated circuit. It shows the 555 timer, said at one point to be the world's most popular IC. Let's take a closer look...
Reposted by Travis Goodspeed
Our chip viewer just got an upgrade: now you can see microscope images, GDS, local interconnect and jump straight to project files. Spot something cool? Dive right into the design.
Explore TT07 here: tinytapeout.com/decap/tt07
Try out our new layer selections with the button at the top right.
Explore TT07 here: tinytapeout.com/decap/tt07
Try out our new layer selections with the button at the top right.
June 28, 2025 at 8:44 AM
Our chip viewer just got an upgrade: now you can see microscope images, GDS, local interconnect and jump straight to project files. Spot something cool? Dive right into the design.
Explore TT07 here: tinytapeout.com/decap/tt07
Try out our new layer selections with the button at the top right.
Explore TT07 here: tinytapeout.com/decap/tt07
Try out our new layer selections with the button at the top right.
Is there a way to turn off retweets for some accounts in bsky?
My Following feed is entirely filled by one or two accounts who retweet dozens of dumb articles about politics, but whose original writing I'd still like to see.
My Following feed is entirely filled by one or two accounts who retweet dozens of dumb articles about politics, but whose original writing I'd still like to see.
June 17, 2025 at 10:08 AM
Is there a way to turn off retweets for some accounts in bsky?
My Following feed is entirely filled by one or two accounts who retweet dozens of dumb articles about politics, but whose original writing I'd still like to see.
My Following feed is entirely filled by one or two accounts who retweet dozens of dumb articles about politics, but whose original writing I'd still like to see.
Reposted by Travis Goodspeed
but… isn’t the point of drinking coffee to sit there and read a book while you do?
the decline of reading for fun is maybe the single most depressing thing about the technological era we’re living through
the decline of reading for fun is maybe the single most depressing thing about the technological era we’re living through
June 15, 2025 at 7:50 PM
but… isn’t the point of drinking coffee to sit there and read a book while you do?
the decline of reading for fun is maybe the single most depressing thing about the technological era we’re living through
the decline of reading for fun is maybe the single most depressing thing about the technological era we’re living through
Reposted by Travis Goodspeed
Reposted by Travis Goodspeed
Building a Debugger is now officially released!
It guides you through building a whole native x64 debugger from scratch, dispelling all the magic and teaching you a ton about operating systems as it goes.
Even if you don't care about building a debugger, you can read it to your cat.
It guides you through building a whole native x64 debugger from scratch, dispelling all the magic and teaching you a ton about operating systems as it goes.
Even if you don't care about building a debugger, you can read it to your cat.
June 10, 2025 at 3:59 PM
Building a Debugger is now officially released!
It guides you through building a whole native x64 debugger from scratch, dispelling all the magic and teaching you a ton about operating systems as it goes.
Even if you don't care about building a debugger, you can read it to your cat.
It guides you through building a whole native x64 debugger from scratch, dispelling all the magic and teaching you a ton about operating systems as it goes.
Even if you don't care about building a debugger, you can read it to your cat.
Reposted by Travis Goodspeed
Going to the USENIX Security Symposium? Don't forget to also register for WOOT, the papers we selected are amazing 🤩
Want to go to WOOT and learn about the latest hardware & software attacks? Registrations are now open!
If you can't afford traveling ✈️ to Seattle on your own and need financial support for a ticket, apply for a grant until July 7: www.usenix.org/conference/w...
If you can't afford traveling ✈️ to Seattle on your own and need financial support for a ticket, apply for a grant until July 7: www.usenix.org/conference/w...
WOOT '25 Grant Opportunities
www.usenix.org
June 9, 2025 at 7:40 PM
Going to the USENIX Security Symposium? Don't forget to also register for WOOT, the papers we selected are amazing 🤩
Reposted by Travis Goodspeed
It's nothing crazy but I finally documented and released the tooling I created for inspecting the instruction behavior while building the lifter for my Binary Ninja plugin https://github.com/jrozner/msp430-testbench . Maybe this approach will be helpful for other embedded architectures for others?
GitHub - jrozner/msp430-testbench: Tools for testing behavior of msp430 instructions
Tools for testing behavior of msp430 instructions. Contribute to jrozner/msp430-testbench development by creating an account on GitHub.
github.com
August 10, 2023 at 3:14 AM
It's nothing crazy but I finally documented and released the tooling I created for inspecting the instruction behavior while building the lifter for my Binary Ninja plugin https://github.com/jrozner/msp430-testbench . Maybe this approach will be helpful for other embedded architectures for others?
Reposted by Travis Goodspeed
Good time to remind everyone of this excellent new project: github.com/travisgoodsp...
GitHub - travisgoodspeed/goodasm: A portable assembler for Z80, 8080, Gameboy, 6805, 8051 and others.
A portable assembler for Z80, 8080, Gameboy, 6805, 8051 and others. - travisgoodspeed/goodasm
github.com
April 25, 2025 at 1:04 AM
Good time to remind everyone of this excellent new project: github.com/travisgoodsp...
Reposted by Travis Goodspeed
For Xennials like me that witnessed the boundless optimism of the 1990's, and watched the disaster of the Chicago Boys "helping Russia reform", this is excellent reading:
nsarchive.gwu.edu/briefing-boo...
nsarchive.gwu.edu/briefing-boo...
The Long Telegram of the 1990s: “Whose Russia Is It Anyway? Toward a Policy of Benign Respect”
Washington, D.C., December 18, 2024 – A now-legendary but long-secret 70-paragraph telegram written by the top political analyst at the U.S. Embassy in Moscow in March 1994, E. Wayne Merry, criticizin...
nsarchive.gwu.edu
December 23, 2024 at 2:14 PM
For Xennials like me that witnessed the boundless optimism of the 1990's, and watched the disaster of the Chicago Boys "helping Russia reform", this is excellent reading:
nsarchive.gwu.edu/briefing-boo...
nsarchive.gwu.edu/briefing-boo...
Reposted by Travis Goodspeed
Still love this little pink pager. cc; @travisgoodspeed.bsky.social
December 23, 2024 at 12:25 AM
Still love this little pink pager. cc; @travisgoodspeed.bsky.social
Reposted by Travis Goodspeed
I've been toying around with the open source TV-B-GONE design from Adafruit and Mitch Altman. Cutting the brightness and switching to SMD components results in a board that rides on a coin cell, easily forgotten in a coat pocket.
Maybe an LED Throwie variant is next?
Maybe an LED Throwie variant is next?
December 7, 2024 at 4:43 PM
I've been toying around with the open source TV-B-GONE design from Adafruit and Mitch Altman. Cutting the brightness and switching to SMD components results in a board that rides on a coin cell, easily forgotten in a coat pocket.
Maybe an LED Throwie variant is next?
Maybe an LED Throwie variant is next?
My assembler's support for the SM83 architecture used in the GameBoy is coming along nicely. The left is a Hello World cartridge and the right is a disassembly of the boot ROM that shows the Nintendo logo at startup.
Source and binaries will be available in February.
Source and binaries will be available in February.
December 3, 2024 at 10:19 PM
My assembler's support for the SM83 architecture used in the GameBoy is coming along nicely. The left is a Hello World cartridge and the right is a disassembly of the boot ROM that shows the Nintendo logo at startup.
Source and binaries will be available in February.
Source and binaries will be available in February.