#intel-8087 on Hacker News

2 stories tagged intel-8087, 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 7 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: Reverse-engineering the Intel 8087's tangent algorithm: more than CORDIC

Reverse-engineering the Intel 8087's tangent algorithm: more than CORDIC (righto.com)

98 points by pwg 29 days ago | 11 comments

Ken Shirriff's blog post reverse-engineering the Intel 8087 coprocessor's FPTAN tangent instruction, which combines CORDIC with polynomial approximation.

intel-8087 cordic reverse-engineering floating-point

#intel-8087 on Hacker News

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

Reverse-engineering the Intel 8087's tangent algorithm: more than CORDIC(righto.com)

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

Reverse-engineering the Intel 8087's tangent algorithm: more than CORDIC (righto.com)