lab3_manual

lab3_manual - EEL4747CMicroComputersII...

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EEL 4747C MicroComputers II Experiment Three: A four bits full adder Objectives: 1. Use Bus for multiple inputs and outputs. 2. Build a new symbol of a full adder based on Lab 2. 3. Design a full adder with 4 bits using your own symbol of 1 bit full adder. 4. Simulate the design, especially under the case of overflow. Instructions: Using multiple full adders with the carry inputs and carry outputs chained together, we come to a full adder with multiple bits. It is possible to create a logical circuit using several full adders to add multiple bit numbers. Each full adder inputs a C i , which is the C o of the previous adder. A B C D Unsigned decimal value Signed decimal value A B C D Unsigned decimal value Signed decimal value 0 0 0 0 1 0 0 0 0 0 0 1 1 0 0 1 0 0 1 0 1 0 1 0 0 0 1 1 1 0 1 1 0 1 0 0 1 1 0 0 0 1 0 1 1 1 0 1 0 1 1 0 1 1 1 0 0 1 1 1 1 1 1 1 In your lab, Simulate and analyze four groups of value. It must cover the case of overflow, for example 5 + 5. You should analyze the result and especially explain the meaning of Co on the last full adder.
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lab3_manual - EEL4747CMicroComputersII...

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