Overhaul Decimal Arithmetic on programs to use minifloat instead of fixed point. #1
Description
Fixed point has very little range and is difficult to work with (hence all the workarounds on the Taylor series program) so let's use a minifloat system using a 3 bit mantissa and 4 bit fraction (ofc 1 sign lol). Use for the arithmetic program might be tricky due to the string-to-fixed and fixed-to-string functions taking up most of the rom but who knows, let's just release a pure assembly non-working version as a poc.