1) (5 pts) Design a circuit that outputs F = 1 when an absolute value (abs) of its 8-bit input A (A
is an 8-bit signed number using 2's complement format) is less than 30 or greater 85. In other
words, if abs(A) < 30 OR abs(A) > 85, F = 1, else F = 0
For example, if
A = -100,
abs(-100) = 100 =>then F = 1
A = -35,
abs(-35) = 35 => then F = 0
A = 54,
abs(54) = 54 => then F = 0
A = 99,
abs(99) = 99 => then F = 1
Your circuit must be designed such that it works for any given value of 8-bit signed number A.
Assume that you have the following datapath components available (unsigned only):
8-bit unsigned magnitude comparator(s), 8-bit full adder, muxes (size of your choice) and the n-
bit input AND, OR, NOT gates (here "n" is your choice).
Cleary label your components, indicate the input values when necessary, properly connect all
components and show bit-width on each wire (if more than 1 bit).
2) (5 pts) Design a 2-bit ALU using 2-bit adder and muxes for the following operation table:
ALU operation
s1 s0
0 0 A << 1 filled with 0 (shift A to the left by 1 bit, using 0 to fill the empty position)
0 1 NOT B
1 0 A + B
1 1 A - B
