DB48X: HP48-like RPL implementation for DM42

[Helix]

(08-16-2023 05:53 PM)c3d Wrote:  Note that in the long term, my intent is to switch to a variable-precision floating-point implementation similar to that of newRPL. When this happens, it is likely that I won't be able to keep both the Intel and the new code at the same time, so I may find myself in the same situation as C47, i.e. a smaller QSPI but not compatible with DM42.

The Intel library seems very fast. According to a test given in the SwissMicros forum, the DM42 is 5 times faster than C47 on floating-point calculations, which is a big difference! I suspect that a variable-precision library would be even slower than C47, and such a step backwards would be a disappointment to me.
That would imply that I never upgrade DB48X when the Intel library is replaced by the variable-precision library, unless you maintain two versions...