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What is reduced instruction set computing (RISC)?
What is a reduced instruction set computer?
What is a minimal instruction set computer (MISC)?
How is one cycle per instruction achieved in RISC architecture?
In electronics and computer science, a reduced instruction set computer (RISC) is a computer architecture designed to simplify the individual instructions given to the computer to accomplish tasks.
The Berkeley project became known as the Reduced Instruction Set Computer (RISC), and the result was the development of single-chip microprocessors. The technology — novel, even counter-intuitive at the time — was led by Patterson and fellow computer science professor Carlo Séquin.
RISC-V (pronounced "risk-five": 1 ) is an open standard instruction set architecture (ISA) based on established reduced instruction set computer (RISC) principles. Unlike most other ISA designs, RISC-V is provided under royalty-free open-source licenses.
- 2015; 8 years ago
V.G. Oklobdzija Reduced Instruction Set Comput ers 9. cases where RISC can contain two sizes of instructions 32-bits and 16-bits. Later is the case of IBM ROMP processor used in the first commercial RISC IBM PC/RT. The fixed format feature is very important because RISC must decode its instruction in one cycle.
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Reduced instruction set computers aim for both simplicity in hardware and synergy between architectures and compilers. Optimizing compilers are used to compile programming languages down to instructions that are as unencumbered as microinstructions in a large virtual address space, and to make the instruction cycle time as fast as possible.
UC Berkeley students designed and built the first VLSI reduced instruction set computer in 1981. The simplified instructions of RISC-I reduced the hardware for instruction decode and control, which enabled a flat 32-bit address space, a large set of registers, and pipelined execution.
