#die-photos on Hacker News

2 stories tagged die-photos, newest first.

Screenshot of righto.com: The Intel 8087 chip: floating-point addition and subtraction

The Intel 8087 chip: floating-point addition and subtraction (righto.com)

102 points by pwg 8 days ago | 33 comments

Ken Shirriff blog post examining the Intel 8087 coprocessor's microcode and circuitry for floating-point addition and subtraction, including special cases.

intel-8087 floating-point microcode reverse-engineering

Screenshot of righto.com: The tiny chip that powers Montreal subway tickets

The tiny chip that powers Montreal subway tickets (righto.com)

870 points by todsacerdoti 2 years ago | 469 comments

Ken Shirriff's blog post examining the NFC chip inside a disposable Montreal Métro paper ticket, explaining how it is powered by and communicates with the turnstile.

nfc mifare-ultralight ic-reverse-engineering die-photos

#die-photos on Hacker News

The Intel 8087 chip: floating-point addition and subtraction(righto.com)

The tiny chip that powers Montreal subway tickets(righto.com)

The Intel 8087 chip: floating-point addition and subtraction (righto.com)

The tiny chip that powers Montreal subway tickets (righto.com)