IEEE standard for floating point #'s!?

Question

What are the largest and smallest exponents that IEEE allows for a floating point number? (exclude special cases)

I know the exponent is 8 bits. So adding the 127 bias, I thought it was from 1 to 254 but I'm thinking it might be from 0 to 254 because that's just 32 zeros?

I don't get it. Thanks for the help on the other questions!!

Answer 1

See link below.

Basically, exponent = all zeroes is reserved for zero or  denormalized numbers.