We studied an important lecture of Module 1 about how an ALU of CPU is built up and functioning.
The key components such as half-adder and full-adder are introduced. An example of 4-bit Ripple-Carry Binary Adder (RCBA) is illustrated to show how a computer can do Addition in general.
Complement concept is refreshed to remind about how to do subtraction, then a RCBA-based circuit for both Addition and Subtraction is introduced. Based on the circuit, other functional circuit such as incrementer/decrementer, multiplier/dividers are discussed.
The key components such as half-adder and full-adder are introduced. An example of 4-bit Ripple-Carry Binary Adder (RCBA) is illustrated to show how a computer can do Addition in general.
Complement concept is refreshed to remind about how to do subtraction, then a RCBA-based circuit for both Addition and Subtraction is introduced. Based on the circuit, other functional circuit such as incrementer/decrementer, multiplier/dividers are discussed.
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