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18.3.2003
Copyright Teemu Kerola 2003
IEEE 32-bit FP Values (6)
exponent
8 bits
mantissa or significand
23 bits
sign
1 bit
0
111 1000 0000 0000 0000 0000
1000 0000
X = ?
=  (1 + 0.5 + 0.25 + 0.125+0.0625) * 2
=  (1+ 1/2 + 1/4 + 1/8 + 1/16) * 2
= 1.11112 * 2
= 1.9375 * 2
= 3.875
X = (-1)0 * 1.1111 * 2(128-127) 
0x40740000