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Laboratory 3.2 (cont)

  • * bits 0-3 only, ā€œNā€ means N bit (bit 3) is 1

  • $F 6 = % 1111 0110 ($09**+ $01 = $0A) -10

  • +$EC = % 1110 1100 ($13 + $01 = $14) -20

  • $1E 2 = % 1 1110 0010 ($1D + $01 = $1E = 30) -30

  • ** NOT(1111 0110) = 0000 1001

  • -10 + -20 = -30 > -128 so no overflow occurs


  • Notes: