For the examples below, show how binary multiplication would proceed using (i) the pencil and paper method (the most basic method discussed in class),

a. (-4 x -6)

b. 7 x 9

c. 7 x -2

What happens if you multiply (-4) x 5? Use 4-bit values, assume solution has 8 bits

Fixing this problem:

On paper: sign-extend multiplicand

01-0 00-00 11-100 10-1000-1 010-1 0-0