4800Pi

Have you ever been stuck in the situation where you need a screenful of pi but can't afford an SD card with a capacity of even a couple kilobytes? Look no further, my friend, for in the blink of an eye* this program will calculate it for you!

* "Blink of an eye" is defined as the duration the eye is closed for whilst sleeping.

Benchmark

The number of digits generated depends on the screen mode your Commander is in when the program is run. A larger number of digits takes significantly longer to generate, so you may wish to adjust your screen mode before running.

Note: This section is based on version 1 of the program. Version 2 is a little faster, e.g. screen mode 0 I now estimate to be 4h14m.

Screen mode	Characters	Time
0	4800	5h28m*
1, 2	2400	1h22m*
3, 128	1200	20m30s
4, 5	600	5m07s
6	300	1m17s

* Calculated from Box16 warp mode. Timing may be inaccurate, but should still be a decent ballpark.

How does it work?

Honestly, I don't know. But it's open source on GitHub, if you want to try and find out. It was inspired by the below video and is fundamentally the same, though requires more 24-bit routines due to calculating up to 4800 digits rather than 960.

I was tempted to call this PI.PRG, but that uninspired name is already taken.