DIY Calculator

[agarza]

(04-10-2019 06:38 AM)Steve Simpkin Wrote:  

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

Here is how Sinclair's Nigel Searle achieved a scientific calculator (non-programmable) in under 320 words of code.
http://files.righto.com/calculator/sincl...lator.html

Wow. Incredible what they accomplished in 1974.


I opted to use 64 bit registers, this will give pretty good accuracy, at least better than most old HP calculators. But this comes with a great cost. Doing simple operations on an 8 bit processor take a lot of processor cycles and memory.