Programming Exercise (HP-15C, 15C LE - and others)

[Gerson W. Barbosa]

(03-28-2014 03:18 AM)bkn42 Wrote:  For N=100, it took about 82sec to finish. Based on this it would take about 2.25hours for N=10000.

I would ask you about the result. Never mind, here it is:



Very accurate result in 2 h 16 m 53s. Not bad for a calculator in 1975!

I don't have an HP-55 either, but it should take exactly the same on a physical one. I've used Eric Smith's Nonpareil High-Fidellity Calculator Simulator (I don't have a working link right now, sorry!).

(03-28-2014 03:18 AM)bkn42 Wrote:  What to do if you don't own a classic HP? Use an emulator? -- Boring!! You build your own classic HP calculator, of course.

Quite impressive! Congratulations!

(03-28-2014 03:18 AM)bkn42 Wrote:  (If anyone wants more info on the FPGA Classic HP Core I designed, let me know and I'll try to write something up for a thread in the "Not quite HP Calculators - but related" forum.)

Please do!

Best regards,

Gerson.