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RISC-V [b] (pronounced "risk-five" [2]: 1 ) is an open standard instruction set architecture (ISA) based on established reduced instruction set computer (RISC) principles. . The project began in 2010 at the University of California, Berkeley, transferred to the RISC-V Foundation in 2015, and on to RISC-V International, a Swiss non-profit entity, in November 20
The RISC5 instruction set and CPU designed by Niklaus Wirth for Project Oberon, nominally run in synthesized form on an FPGA as part of the OberonStation package The RISC-V instruction set architecture derived from designs that originated at University of California, Berkeley, and supported by multiple vendors aiming for mass chip production
The varieties of RISC processor design include the ARC processor, the DEC Alpha, the AMD Am29000, the ARM architecture, the Atmel AVR, Blackfin, Intel i860, Intel i960, LoongArch, Motorola 88000, the MIPS architecture, PA-RISC, Power ISA, RISC-V, SuperH, and SPARC. RISC processors are used in supercomputers, such as the Fugaku. [8]
RISC-V assembly language is a low-level programming language that is used to produce object code for the RISC-V class of processors. Assembly languages are closely tied to the architecture's machine code instructions, allowing for precise control over hardware.
SiFive, Inc., a RISC-V chip technology startup in Silicon Valley, said on Wednesday it raised $175 million in its latest round of funding and is now valued at $2.5 billion. RISC-V is an ...
The RISC-V instruction set refers to the set of instructions that RISC-V compatible microprocessors support. The instructions are usually part of an executable program, often stored as a computer file and executed on the processor.
An instruction set architecture (ISA) is an abstract model of a computer, also referred to as computer architecture.A realization of an ISA is called an implementation.An ISA permits multiple implementations that may vary in performance, physical size, and monetary cost (among other things); because the ISA serves as the interface between software and hardware.
M (bits 0–4) is the processor mode bits. T (bit 5) is the Thumb state bit. F (bit 6) is the FIQ disable bit. I (bit 7) is the IRQ disable bit. A (bit 8) is the imprecise data abort disable bit. E (bit 9) is the data endianness bit. IT (bits 10–15 and 25–26) is the if-then state bits. GE (bits 16–19) is the greater-than-or-equal-to bits.