Conversion of flonums to floating point is correct, and
compatible with previous assemblers. Rounding is
towards zero if the remainder is exactly half the least significant bit.
D, F, G and H floating point formats
Immediate floating literals (e.g. ‘S`$6.9’)
are rendered correctly. Again, rounding is towards zero in the
The .float directive produces f format numbers.
The .double directive produces d format numbers.