DB48X: HP48-like RPL implementation for DM42

[c3d]

(11-06-2024 09:54 AM)raprism Wrote:  

(11-05-2024 09:02 PM)c3d Wrote:  1) Use hardware floating point (enable HwFP and set precision to 7 or 16). That should run 10k loops in about 6.8s (32-bit FP, precision 7) or 8.9s (64-bit FP, precision 16).

2) Run it on an iPhone. On my iPhone 12, I run 10k loops at 36-digit in 4.3s with 0.8.3. It should be about 20% faster with 0.8.4.

1) is the right hint (2) is not an option for me.). Thanks, Linus.

Finally I've come across 6-performance.md on SumTest. This answers a lot ...

Btw Prec 24 and hwfp needs about 182.1s for 10k loops.

hwfp is only active with precision below 16. For 8-16, it gives you double-precision (64-bit IEEE754). For 7 and below, it gives you single-precision (32-bit IEEE754).

Quote:Btw the help files (db48x.md, db50x.md) are not up-to-date in section Decimal Numbers.

Good point. I'll update it.