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Does an ALU have a register?
The arithmetic/logic unit (ALU) of a processor performs integer arithmetic and logical operations. One operand for the ALU is always contained in a register. The other operand may be in a register or may be part of the machine instruction itself. The result of the operation is put into a general purpose register.
Which register is directly connected to ALU?
All the 32 registers are directly connected to the Arithmetic Logic Unit (ALU), allowing two independent registers to be accessed in one single instruction executed in one clock cycle.
What is the difference between a register and the ALU?
ALU: ALU stands for Arithmetic Logic Unit. It is a very essential part of the CPU. It performs all the basic arithmetic (addition, subtraction, multiplication, and division) operations and logical operations….Difference Between ALU and CU.
| Basis | Control Unit | Arithmetic Logic Unit |
|---|---|---|
| Abbreviation | CU | ALU |
What are the different register sets with the common ALU?
One of the CPU registers is called as an accumulator AC or ‘A’ register. It is the main operand register of the ALU. The data register (DR) acts as a buffer between the CPU and main memory. It is used as an input operand register with the accumulator.
What is the main register in the ALU?
The arithmetic logic unit (ALU) performs the arithmetic and logical functions that are the work of the computer. There are other general purpose registers that hold the input data, and the accumulator receives the result of the operation. The instruction register contains the instruction that the ALU is to perform.
What’s the difference between CPU and ALU?
The key difference between ALU and CPU is that the ALU is an electronic circuit which is a subsystem of CPU that performs arithmetic and logical operations while CPU is an electronic circuit that handles instructions to operate the computer.
Are 16 bit registers?
Memory Registers There are two 16-bit registers used to hold memory addresses. The size of these registers is 16 bits because the memory addresses are 16 bits. They are: Program Counter This register is used to sequence the execution of the instructions.