What are the key technologies of RISC?

RISC's English full name is reduced instruction set computer, Chinese is reduced instruction set computer, its instruction system is relatively simple, it only requires hardware to execute a very limited and most commonly used part of the instructions, most of the complex operations use mature compilation technology, synthesized by simple instructions. Its technical features:

1. Most instructions are completed in a single cycle.

2. Adopt load store structure. Because it takes a long time to access memory instructions, and it is necessary to minimize such instructions in the instruction system, only two types of memory access instructions, load store, are reserved in the RISC instruction.

3. Hard-wiring control logic. This allows most instructions to be executed in a single cycle to reduce the overhead of interpreting instructions in program technology.

4. Reduce the types of instructions and addressing methods.

5. Fixed instruction format.

6. Decoding optimization.

7. Register-oriented structure.

8. Pay attention to improving the execution efficiency of the assembly line, minimize the interruption of the assembly line, and improve the efficiency of the assembly line.

9. Optimize compilation technology.

RISC technology is the best MIPS host in the 80's.

A reduced instruction set computer (RISC) is a microprocessor that executes fewer types of computer instructions. RISC technology is the best MIPS host in the 80's.

Because a computer requires additional transistors and circuit elements to execute each instruction type, a larger set of computer instructions makes the microprocessor more complex and slower to execute. John Cocke of the IBM Research Center in Yorktown, New York, proved that about 20 percent of the instructions in a computer do 80 percent of the work, and in 1974, he came up with the concept of RISC. Many current microchips use the RISC concept.

Advantages of RISC technology:

1. The chip area occupied by the control unit is greatly reduced, such as RLSCI accounts for 10%, while CISC usually accounts for more than 50%. Thus, in the RISCVLSI chip, more free space is left so that the entire CPU and other components are on a single chip (e.g. cache, floating-point unit, part of the main memory, memory management unit, 1 0 port).

2. Due to the reduction of the control area, a large number of CPU registers can be pressed and placed on the chip (RISCI is 138).

3. By reducing the area of the control unit on the VLSI chip and placing a large number of consistent registers, the regularizationfaetor of the chip can be improved. Basically, the higher the regularization factor, the lower the VLSI design cost.

4. It is conducive to the realization technology of GAAS (arsenide) VLSI chips for hail, because it is suitable for manufacturing chips with higher density. In short, it reduces the complexity of the procedure and simplifies the structure.

The above content refers to Encyclopedia - Reduced Instruction Set Computer.

I believe that you often hear the word "RISC" in daily computer use or CPU advertising introduction, and what Pentium Pro uses advanced RISC technology ......The K6 is made of RISC86 structure, which is ...... from the yearsIn short, all slightly high-end ** processors are said to use RISC technology, so what exactly is RISC?

Let's talk more about RISC technology. The speed at which a CPU executes operations is affected by three factors:

1) The number of instructions in the program is fierce sun i; Suspicion.

2) the number of cycles used for the execution of each instruction cpi;

3) Cycle time t.