MICROPROCESSOR AND MICROCONTROLLER

Detailed explanation-1: -The RISC computer usually has many (16 or 32) high-speed, general-purpose registers with a load–store architecture in which the code for the register-register instructions (for performing arithmetic and tests) are separate from the instructions that grant access to the main memory of the computer.

Detailed explanation-2: -RISC is implemented using hardwire control unit. RISC uses registers instead of memory. Registers are small in size and are on the same chip on which ALU and control unit are present. RISC architecture is shown below.

Detailed explanation-3: -A large number of registers is useful for storing intermediate results and for optimizing operand references. The advantage of register storage as opposed to memory storage is that registers can transfer information to other registers much faster than the transfer of information to and from memory.

Detailed explanation-4: -Registers-RISC machines have a large general-purpose register set. Any register can contain either data or an address. Registers act as the fast local memory store for all data processing operations.