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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
OpenRISC is a project to develop a series of open-source hardware based central processing units (CPUs) on established reduced instruction set computer (RISC) principles. It includes an instruction set architecture (ISA) using an open-source license. It is the original flagship project of the OpenCores community.
Open source, multithreading, multi-core, 4 threads per core, scalar, in-order, integrated memory controller, 1 FPU UltraSPARC T2: 2007 8 Open source, multithreading, multi-core, 8 threads per core SPARC T3: 2010 8 Multithreading, multi-core, 8 threads per core, SMP, 16 cores per chip, 2 MB L3 cache, in-order, hardware random number generator
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.
The processor, manufactured in 65 nm, is available with eight CPU cores, and each core is able to handle eight threads concurrently. Thus the processor is capable of processing up to 64 concurrent threads. Other new features include: [1] Speed bump for each thread, which increased the frequency from 1.2 GHz to 1.6 GHz
Open MIPS architecture, for part of 2019 the specifications were free to use, royalty free, for registered MIPS developers. [67] OpenSPARC, in 2005, Sun released its Ultra Sparc documentation and specifications, under the GPLv2. LEON, an open source, radiation-tolerant implementation of the SPARC V8 instruction set (targeting space applications).
The processor is available with four, six or eight CPU cores, each core able to handle four threads concurrently. Thus, the processor is capable of processing up to 32 threads concurrently. The UltraSPARC T1 can be partitioned in a similar way to high-end Sun SMP systems. Thus, several cores can be partitioned for running a single or group of ...
Processors implement a set of these categories as required for their task. Different classes of processors are required to implement certain categories, for example a server-class processor includes the categories: Base, Server, Floating-Point, 64-Bit, etc. All processors implement the Base category. Power ISA is a RISC load/store architecture.