Editing IBM hexadecimal floating-point (section)

=== Zero ===
:{|
|- style="text-align:center"
|style="width:20px;text-align:center;background-color:#FC9"|S
|style="width:90px;text-align:center;background-color:#99F"|Exp
|style="width:250px;text-align:center;background-color:#9F9"|Fraction
|style="text-align:center;background-color:#FFF"|&nbsp;
|- style="text-align:center"
|style="text-align:center;background-color:#FEC"|{{mono|0}}
|style="text-align:center;background-color:#CCF"|{{mono|000 0000}}
|style="text-align:center;background-color:#CFC"|{{mono|0000 0000 0000 0000 0000 0000}}
|style="text-align:center;background-color:#FFF"|&nbsp;
|}

Zero (0.0) is represented in normalized form as all zero bits, which is arithmetically the value +0.0<sub>16</sub> × 16<sup>0 − 64</sup> = +0 × 16<sup>−64</sup> ≈ +0.000000 × 10<sup>−79</sup> = 0. Given a fraction of all-bits zero, any combination of positive or negative sign bit and a non-zero biased exponent will yield a value arithmetically equal to zero. However, the normalized form generated for zero by CPU hardware is all-bits zero. This is true for all three floating-point precision formats. Addition or subtraction with other exponent values can lose precision in the result.