Architecture of Register Memory
- This architecture works by following instructions that tell the CPU what operations to do on the registers and memory. It’s called a “register plus memory” architecture when all the data needed for an operation is already in the registers.
- An operation can use two pieces of data: one from memory and one from a register. Or, both pieces of data can be in registers or in memory. This is different from other architectures.
- Examples of this type of architecture are Intel x86 and IBM System/360 computers.
- The CPU has a small number of registers, and they are tiny in size, less than 64 bits. Registers are faster than disk memory and main memory (RAM). The size of the general-purpose registers affects how much data the CPU can work with at once.
- The computer has instructions that identify which register to use by a number or address, like R0, R1, R7, SP, and PC. Registers act as a link between the program and the computer’s data storage.
What is Register Memory?
Register memory is a type of computer memory that consists of a small set of storage locations within the central processing unit (CPU) itself. These storage locations, known as registers, are used to store data temporarily during the execution of a program. More and bigger registers allow faster CPU operation. Different register types like accumulators, data registers, and address registers serve different purposes for the CPU.
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