def read.exp
import bend-toon-codec@0.1.0.0/src/num.bend as Numimport Base
253def read.exp(+eneg: Bool, +ex: String) -> U32:
254 match eneg:
255 case True{}:
256 (bias() - exp.val(ex) : U32)
257 case False{}:
258 (bias() + exp.val(ex) : U32)