What is RISC and CISC in microcontroller?
What is RISC and CISC in microcontroller?
What is RISC and CISC in microcontroller?
RISC stands for ‘Reduced Instruction Set Computer Whereas, CISC stands for Complex Instruction Set Computer. The RISC processors have a smaller set of instructions with few addressing nodes. The CISC processors have a larger set of instructions with many addressing nodes.
What is the difference between RISC & CISC?
The primary difference between RISC and CISC architecture is that RISC-based machines execute one instruction per clock cycle. In a CISC processor, each instruction performs so many actions that it takes several clock cycles to complete.
What is the difference between RISC and CISC processors give an example for each?
The RISC ISA emphasizes software over hardware. The RISC instruction set requires one to write more efficient software (e.g., compilers or code) with fewer instructions. CISC ISAs use more transistors in the hardware to implement more instructions and more complex instructions as well.
Is the 8051 a CISC or RISC?
Difference between 8051 and ARM :
| S.No. | 8051 |
|---|---|
| 5. | It is based on CISC Instruction set Architecture. |
| 6. | 8051 micro-controller is a Harvard-based architecture, but it allows us to connect external memory and simulate von Neumann’s architecture. |
| 7. | Power consumption of 8051 micro-controller is average. |
Why is RISC better than CISC?
RISC processors can be designed more quickly than CISC processors due to its simple architecture. The execution of instructions in RISC processors is high due to the use of many registers for holding and passing the instructions as compared to CISC processors.
What are the advantages and disadvantages of RISC and CISC?
What are the advantages of RISC over CISC?
RISC vs. CISC
| RISC | CISC |
|---|---|
| RISC has large code sizes, which means it operates low cycles per second | CISC has small code sizes, high cycles per second |
| Spends more transistors on memory registers | The transistors in a CISC processor are used to store complex instructions |
| Less memory access | More memory access |
What is the main difference between RISC and CISC Mcq?
Difference between the RISC and CISC Processors
| RISC | CISC |
|---|---|
| It is a Reduced Instruction Set Computer. | It is a Complex Instruction Set Computer. |
| It emphasizes on software to optimize the instruction set. | It emphasizes on hardware to optimize the instruction set. |
What is the meaning of CISC?
Complex Instruction Set Computer
A computer in which individual instructions may perform many operations and take many cycles to execute, in contrast with reduced instruction set computer (RISC).
What is the advantage of RISC?
Advantages of RISC processors Due to the architecture having a set of instructions, this allows high level language compilers to produce more efficient code. This RISC architecture allows simplicity, which therefore means that it allows developers the freedom to utilise the space on the microprocessor.