Question

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2. (20 points) Let's assume that we have to multiply two 3-bit positive numbers or two 3-bit negative numbers. That is, the signs of the input numbers are guaranteed to be the same. Draw a logic diagram for the modified multiplier. You can use any kind of combinational blocks such as multiplexors, half-adders, etc. Try to minimize the number of gates/blocks. 3.115 points] Find the answer for the following calculations. Circle ifit has an overflow or not. O LO -5 43 1) unsigned (result 4-bit) 2) two's complement (result 4-bit)3) two's complement (result 8-bit) 1101 0111 000) ?? 1101 +1010 1011 (8 bit) oot l o 01011 101 (4bit) 5Too !

Answer 1

For both -ve & +ve no�s we use 2�s cmplmnt method if 1^st bit is 1 = > -ve num 1^st bit is 0 = > +ve num. 3bit num circuit