[42S] MANT Challenge

[Werner]

MANT should return the unsigned mantissa, as in the 48.
Exponents are 1, 2 or 3 digits, and possibly negative of course.
Probably easier to remove the decimal point and use two ASTO's to X and L to get the 12 digits, then rebuild the integer in alpha and do ANUM.
Would still get quite long, I think.
Werner