What is RISC computer architecture?

What is RISC computer architecture?

RISC, or Reduced Instruction Set Computer. is a type of microprocessor architecture that utilizes a small, highly-optimized set of instructions, rather than a more specialized set of instructions often found in other types of architectures.

What is RISC and its characteristics?

Characteristic of RISC – Simpler instruction, hence simple instruction decoding. Instruction comes undersize of one word. Instruction takes a single clock cycle to get executed. More general-purpose registers. Simple Addressing Modes.

What is RISC example?

RISC generally refers to a streamlined version of its predecessor, the Complex Instruction Set Computer (CISC). Examples of processors with the RISC architecture include MIPS, PowerPC, Atmel’s AVR, the Microchip PIC processors, Arm processors, RISC-V, and all modern microprocessors have at least some elements of RISC.

How does RISC architecture work?

RISC utilizes simple addressing modes and fixed-length instructions for pipelining. RISC permits any register to use in any context. The amount of work that a computer can perform is reduced by separating “LOAD” and “STORE” instructions. RISC uses the Harvard memory model means it is Harvard Architecture.

Why is RISC important?

However, the RISC strategy also brings some very important advantages. Because each instruction requires only one clock cycle to execute, the entire program will execute in approximately the same amount of time as the multi-cycle “MULT” command.

Who invented RISC architecture?

researcher John Cocke
The first prototype computer to use reduced instruction set computer (RISC) architecture was designed by IBM researcher John Cocke and his team in the late 1970s.

Which architecture is used in RISC?

RISC uses the Harvard memory model means it is Harvard Architecture. A compiler is used to perform the conversion operation means converting a high-level language statement into the code of its form.

Which of the following is a RISC architecture?

Which of the following is a RISC architecture? Explanation: MIPS possess a RISC architecture whereas 80386, 80286 and Zilog Z80 are CISC architectures.

Who uses RISC architecture?

Use of RISC architectures. RISC architectures are now used across a range of platforms, from smartphones and tablet computers to some of the world’s fastest supercomputers such as Fugaku, the fastest on the TOP500 list as of November 2020, and Summit, Sierra, and Sunway TaihuLight, the next three on that list.

What is the RISC architecture?

• RISC architectures represent an important innovation in the area of computer organization. • The RISC architecture is an attempt to produce more CPU power by simplifying the instruction set of the CPU. • The opposed trend to RISC is that of complex instruction set computers (CISC). • Both RISCs and CISCs try to solve the same problem.

What is reduced instruction set computer (RISC)?

Reduced Instruction Set Computer (RISC): • RISC architectures represent an important innovation in the area of computer organization. • The RISC architecture is an attempt to produce more CPU power by simplifying the instruction set of the CPU. • The opposed trend to RISC is that of complex instruction set computers (CISC).

Which is an example of a CISC architecture?

Some Processor Examples CISC Architectures: VAX 11/ Pentium. Nr. of instructions: 303 235 Instruction size: 2 – 57 1-11 Instruction format: not fixed not fixed Addressing modes: 22 11 Number of GP registers: 16 8. RISC Architectures:

What is the difference between CISC and RISC?

PERFORMANCE EQUATION The CISC approach attempts to minimize the number of instructions per program, sacrificing the number of cycles per instruction. RISC does the opposite, reducing the cycles per instruction at the cost of the number of instructions per program.