Problem 3 : Math Operations

• Suppose AL and BL hold 8-bit, two's complement (signed) integers.
  For this problem, we wish to compute an 8-bit, two's complement (signed) result.
  • Write the valid 80x86 command(s) which performs the given operation.
  • State which register holds the 8-bit portion of the result.
  • Pick values for AL and BL such that the result will be wrong (i.e., cannot be correctly represented using 8-bit, two's complement notation) or undefined.
  • Assume that all other registers hold undefined values.

  • Specify numbers in decimal (base 10).

• The first row is given as an example

  Operation	80x86 Command(s) to perform 8-bit, 2's complement, signed operation	Register holding 8-bit portion of result	Wrong or undefined result occurs when
  			AL=	BL=
  AL + BL	ADD BL,AL	BL	97	97
  AL - BL
  AL x BL
  AL / BL (division)
  AL % BL (remainder)
  -AL (negation)

  
  (20 pts)