klapauciusisgreat
commented
4 years ago I'm curious which floating point packs are freely available. Jos, can you point so something interesting ?
I'd like to get a at least double precision library going for a project doing some astronomical toy (say, point antenna at moon) and most code for that does not really work with single precision.
Also, am I right at suspecting that a 'proper' floating point implementation requires to change the interpreter to recognize FP numbers ? It seems feasible but seems like a fairly decent chunk of work, especially when FP speed is not of the essence (e.g. Moon angular speed relative to earth is not that fast).
My other option, micropython (on esp32), is also handicapped in the precision department.
Jos-Ven
Hi, At I am still quite happy with your Punyforth. Great work! There is just 1 question for a primitive floating-point pack.
When highbit is defined as: -1 1 rshift invert constant: highbit
than highbit returns 214748364 Other 32 bits systems return 2147483648 How should highbit be defined? Thanks in advance.
Despite that problem the pack seem to work as you can see:
(stack) 10 s>f 3 s>f f/ f. 333333333e-8(stack) 10 s>f 6 s>f f/ f. 1666666666e-9(stack)
Kind regards, Jos