DIY Calculator

[rprosperi]

(04-09-2019 03:25 PM)agarza Wrote:  I have no idea how Sinclair did such a feat. I have run out of memory.

That's easy. Whips.

Actually, it's probably because they wrote entirely in assembler, if not in machine language when a shoehorn was really needed, plus had many programmers with lots of experience writing close to the hardware (they had no other choices at the time).

Not casting any aspersions towards you, I've no idea at all of your experience, but these days writing hand-tuned and optimized assembly language for a custom CPU is extremely rare and simply not justifiable.