Solução dos Exercícios Ponto Flutuante

1a) 158.125d = 10011110.001b = 1.0011110001 x 2^7

 Sinal = 0b
 Expoente = 7 + 127 = 134 = 10000110b
 Mantissa = (1.)0011110001b = 00111100010000000000000

Portanto:

 158.125d = 01000011000111100010000000000000b

1b) 490.5625d = 111101010.1001b = 1.111010101001b x 2^8

 Sinal = 0
 Expoente = 8 + 127 = 135 = 10000111b
 Mantissa = (1.)111010101001b = 11101010100100000000000

Portanto:

  490.5625d = 01000011111101010100100000000000b

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2a)