Question

Perform the following logical operations, assuming a nine-bit cell: NEG    1 1001 0011

Perform the following logical operations, assuming a nine-bit cell:

NEG    1 1001 0011

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Answer #1
The NEG instruction negates a value by finding 2's complement of its single operand.

Given
NEG    1 1001 0011

This is already in 2's complement
So, we have to convert it to binary

Ones complement
= Twos complement - 1
= 1 1001 0011 - 1
= 1 1001 0010

Binary
= Invert bits in Ones complement
= 0 0110 1101

0 0110 1101

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