I am trying to learn Binary Multiplication, 2's complement negative numbers.
-10
x 3
I know there is a simple way of doing this. Like sign extension and initial partial product.
-10 0110 twos complement
x 3 x 0011
---- ------
000000 (initial partial product) with sign extension at the MSB
10110 (bit 0 of the 3 times 10, sign extended at MSB)
110110 (sign extended sum of initial partial product and
Multiplicand)
10110- (bit 1 of the 3 multiplied by the 10. sign extension at the MSB Note the
Multiplicand is shifted left by one bit)
I am lost on how to continue. I am not even sure if i was completely right up to this point. Can someone show me how to do it by steps? I dont want to do it any other way. If i do it the traditional way big numbers could be bad. Thank you