float16 (Half-precision floating-point format): 65504 .. -65504
Half Float IEEE Library for C and Z80 https://github.com/artyom-beilis/float16
16bit half float in Pascal/Delphi https://galfar.vevb.net/wp/2011/16bit-half-float-in-pascaldelphi/
IEEE 754 Calculator (16 bit, 32 bit, 64 bit, 128 bit) http://weitz.de/ieee/