d = NaN
sign bit           = 0
exponent (8  bits) = 11111111
mantissa (23 bits) = 10000000000000000000000

d = Infinity
sign bit           = 0
exponent (8  bits) = 11111111
mantissa (23 bits) = 00000000000000000000000

d = -Infinity
sign bit           = 1
exponent (8  bits) = 11111111
mantissa (23 bits) = 00000000000000000000000

d = 0.0
sign bit           = 0
exponent (8  bits) = 00000000
mantissa (23 bits) = 00000000000000000000000

d = -0.0
sign bit           = 1
exponent (8  bits) = 00000000
mantissa (23 bits) = 00000000000000000000000

d = 1.0
sign bit           = 0
exponent (8  bits) = 01111111
mantissa (23 bits) = 00000000000000000000000

d = -1.0
sign bit           = 1
exponent (8  bits) = 01111111
mantissa (23 bits) = 00000000000000000000000

d = 3.4028235E38
sign bit           = 0
exponent (8  bits) = 11111110
mantissa (23 bits) = 11111111111111111111111

d = -3.4028235E38
sign bit           = 1
exponent (8  bits) = 11111110
mantissa (23 bits) = 11111111111111111111111

d = 1.4E-45
sign bit           = 0
exponent (8  bits) = 00000000
mantissa (23 bits) = 00000000000000000000001

d = -1.4E-45
sign bit           = 1
exponent (8  bits) = 00000000
mantissa (23 bits) = 00000000000000000000001