Open the context
Choose the project folder and name the files or behavior involved.
Workflows
Coding workflows · Binary16 value decoding
03
A concrete starting point
Decode one unsigned 16-bit binary16 word into a numeric value. Test signed zero, subnormals, infinities and NaNs, rejecting Boolean or out-of-range words without preserving NaN payloads.
Define the change
Describe the input, expected output and boundaries that must stay intact.
Inspect the work
Review the proposed edits and any commands before relying on their result.
Check the outcome
Compare actual behavior with the expected result. If a check fails, investigate it before applying more changes.
Binary16 value decoding
A concrete starting point
from math import copysign, ldexp
def binary16_value(word):
if type(word) is not int or not 0 <= word <= 65535:
raise ValueError("binary16.word")
sign = -1.0 if word & 0x8000 else 1.0
exponent, fraction = (word >> 10) & 31, word & 1023
if exponent == 31:
return copysign(float("nan") if fraction else float("inf"), sign)
value = ldexp(fraction, -24) if exponent == 0 else ldexp(1024+fraction, exponent-25)
return copysign(value, sign)The example is a starting point for a real project, not a claim that generated code is already tested. Adjust paths, dependencies and expected behavior to match your application.