Porting my 3D points renderer on a ZX Spectrum 48K | Hacker News

A Hacker News discussion says 1980s software work was limited more by slow CPUs, tiny memory, and long edit-build-test cycles than by assembly language alone.

A commenter describes porting a 3D points renderer to the ZX Spectrum 48K as an example of how tight hardware constraints shaped development.

The thread argues that better tools and higher-level languages later made programmers far more productive.

It frames retro computing as a reminder that modern software speed comes as much from tooling as from language choice.