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README.md
read.py
wires.jpg

README.md

Wired CSV, misc, 220p

We have a photo and a CSV file. NOTE: The flag does not follow the CTF{...} format, but is clearly marked as the flag. Please add the CTF{...} around the flag manually when submitting.

The chip on the attached photo was POKEY, which interfaces with keyboard on Atari. We also got a CSV with logic dumps of several pins, which were D0-D5 and select lines. If we dump state of Dx at times when the select is on, then we should get raw keyboard codes. We also found a code to character mapping somewhere on the internet, which finally allowed us to create read.py and get the flag.