0x0mer/CasNum

CasNum (Compass and straightedge Number) is a library that implements arbitrary precision arithmetic using compass and straightedge constructions. Featuring a functional modified Game Boy emulator where every ALU opcode is implemented entirely through geometric constructions.

333 best points · 37 comments · 2 Hacker News posts · 239 GitHub stars · View on GitHub

Hacker News discussions

• CasNum (333 points, 37 comments, by aebtebeten, 2026-03-07)
• Show HN: CasNum – A GameBoy ALU using only compass-&-straightedge constructions (1 points, 0 comments, by 0x0mer, 2026-02-12)