µctrl Raspberryπ pico & arduino

[John Keith]

(01-28-2021 12:37 AM)ijabbott Wrote:  I think Casio had custom versions of the Hitachi SuperH (now Renesas SuperH) CPUs produced without hardware floating point for their graphing calculators, because the hardware floating point unit worked in binary, but the calculator worked in decimal (like most calculators).

Indeed, this is why Free42 binary runs faster than Free42 decimal. For a calculator* it is probably better to have a CPU architecture/instruction set that makes BCD operations as efficient as possible.


* Or computer math software generally.