HP-15C CE woes: 1 bug, 2 limitations, 3 questions

[brouhaha]

(08-09-2023 03:20 PM)ThomasF Wrote:  It is said that the DEC-bug is only on presentation, ie the internal representation is correct (eg the HEX value is correct).

And, when working in FLOAT-mode, it works ok, no problem there.

So I thought I could use the feature to convert integer values to float, to get the correct value, but alas, that didn't work either ...

I believe I've found the 16C microcode instruction which, when BCD addition is improperly optimized by the Nut emulator, causes the decimal integer display problem. I think the corresponding problem in integer to float conversion is in a different microcode path, but I haven't yet checked that.