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Processor design is a subfield of computer science and computer engineering (fabrication) that deals with creating a processor, a key component of computer hardware.
PowerPC is a reduced instruction set computer (RISC) instruction set architecture (ISA) created by the 1991 Apple–IBM–Motorola alliance, known as AIM. PowerPC, as an evolving instruction set, has been named Power ISA since 2006, while the old name lives on as a trademark for some implementations of Power Architecture–based processors.
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. Compared to the instructions given to a complex instruction set computer (CISC), a RISC computer might require more instructions in order to accomplish a task because the individual instructions are written in simpler code. The goal is to offset the need to process more instructions by increasing the speed of each instruction, in particular by implementing an instruction pipeline, which may be simpler to achieve given simpler instructions.
AVR is a family of microcontrollers developed since 1996 by Atmel, acquired by Microchip Technology in 2016. These are modified Harvard architecture 8-bit RISC single-chip microcontrollers. AVR was one of the first microcontroller families to use on-chip flash memory for program storage, as opposed to one-time programmable ROM, EPROM, or EEPROM used by other microcontrollers at the time.
SuperH is a 32-bit reduced instruction set computing (RISC) instruction set architecture (ISA) developed by Hitachi and currently produced by Renesas. It is implemented by microcontrollers and microprocessors for embedded systems.
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.
LEON is a radiation-tolerant 32-bit central processing unit (CPU) microprocessor core that implements the SPARC V8 instruction set architecture (ISA) developed by Sun Microsystems. It was originally designed by the European Space Research and Technology Centre (ESTEC), part of the European Space Agency (ESA), without any involvement by Sun. Later versions have been designed by Gaisler Research, under a variety of owners. It is described in synthesizable VHSIC Hardware Description Language (VHDL). LEON has a dual license model: An GNU Lesser General Public License (LGPL) and GNU General Public License (GPL) free and open-source software (FOSS) license that can be used without licensing fee, or a proprietary license that can be purchased for integration in a proprietary product. The core is configurable through VHDL generics, and is used in system on a chip (SOC) designs both in research and commercial settings.
The MicroBlaze is a soft microprocessor core designed for Xilinx field-programmable gate arrays (FPGA). As a soft-core processor, MicroBlaze is implemented entirely in the general-purpose memory and logic fabric of Xilinx FPGAs.
PicoBlaze is the designation of a series of three free soft processor cores from Xilinx for use in their FPGA and CPLD products. They are based on an 8-bit RISC architecture and can reach speeds up to 100 MIPS on the Virtex 4 FPGA's family. The processors have an 8-bit address and data port for access to a wide range of peripherals. The license of the cores allows their free use, albeit only on Xilinx devices, and they come with development tools. Third-party tools are available from Mediatronix and others. Also PacoBlaze, a behavioral and device independent implementation of the cores exists and is released under the BSD License. The PauloBlaze is an open source VHDL implementation under the Apache License.
V850 is a 32-bit RISC CPU architecture produced by Renesas Electronics for embedded microcontrollers. It was designed by NEC as a replacement for their earlier NEC V60 family, and was introduced shortly before NEC sold their designs to Renesas in the early 1990s. It has continued to be developed by Renesas as of 2018.
AVR32 is a 32-bit RISC microcontroller architecture produced by Atmel. The microcontroller architecture was designed by a handful of people educated at the Norwegian University of Science and Technology, including lead designer Øyvind Strøm and CPU architect Erik Renno in Atmel's Norwegian design center.
The OpenRISC 1200 (OR1200) is an implementation of the open source OpenRISC 1000 RISC architecture.
ArduPilot is an open source, uncrewed vehicle Autopilot Software Suite, capable of controlling:
IBM Power microprocessors are designed and sold by IBM for servers and supercomputers. The name "POWER" was originally presented as an acronym for "Performance Optimization With Enhanced RISC". The Power line of microprocessors has been used in IBM's RS/6000, AS/400, pSeries, iSeries, System p, System i, and Power Systems lines of servers and supercomputers. They have also been used in data storage devices and workstations by IBM and by other server manufacturers like Bull and Hitachi.
Intel Galileo is the first in a line of Arduino-certified development boards based on Intel x86 architecture and is designed for the maker and education communities. Intel released two versions of Galileo, referred to as Gen 1 and Gen 2. These development boards are sometimes called "Breakout boards".
Heterogeneous computing refers to systems that use more than one kind of processor or core. These systems gain performance or energy efficiency not just by adding the same type of processors, but by adding dissimilar coprocessors, usually incorporating specialized processing capabilities to handle particular tasks.
RISC-V 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. Many companies are offering or have announced RISC-V hardware; open source operating systems with RISC-V support are available, and the instruction set is supported in several popular software toolchains.
SiFive, Inc. is an American fabless semiconductor company and provider of commercial RISC-V processor IP and silicon chips based on the RISC-V instruction set architecture (ISA). Its products include cores, SoCs, IPs, and development boards.
SHAKTI is an open-source initiative by the Reconfigurable Intelligent Systems Engineering (RISE) group at Indian Institute of Technology, Madras to develop the first indigenous Indian industrial-grade processor. The aim of SHAKTI initiative includes building an opensource production-grade processor, complete system on chips (SoCs), development boards and SHAKTI based software platform. The primary focus of the team is architecture research to develop SoCs, which is competitive with commercial offerings in the market concerning area, power and performance. All the source codes for SHAKTI are open-sourced under the Modified BSD License. The project was funded by the Ministry of Electronics and Information Technology (MeITY), Government of India.
References
- ↑ "The dream of Ara: Inside the rise and fall of the world's most revolutionary phone". VentureBeat. 10 January 2017. Retrieved 19 February 2021.
- ↑ TKey Tillitis. Retrieved 02 July 2023
- ↑ "Twibright Labs - Ronja".
- ↑ "ZPU - the worlds [sic] smallest 32 bit CPU with GCC toolchain :: Overview". OpenCores.
- 1 2 Cicero, Simone (27 December 2013). "10 of the Most Incredible Open Source Hardware Projects Born in 2013". Open Electronics. Futura Group. Retrieved 12 March 2017.
- ↑ OpenEV
- ↑ Katherine Noyes. "Tiny $57 PC is like the Raspberry Pi, but faster and fully open". PCWorld. 2012.
- ↑ "HiFive1: Open Source, Arduino-Compatible RISC-V Dev Kit". Crowd Supply. Retrieved 31 May 2017.
- ↑ "SiFive HiFive Unleashed Getting Started Guide" (PDF). SiFive. SiFive, Inc. Retrieved 13 April 2018.
- ↑ "SiFive launches HiFive Unmatched mini-ITX motherboard for RISC-V PC's". cnx-software. 30 October 2020. Retrieved 4 May 2021.
- ↑ "Novena". Crowd Supply .
- ↑ "The Almost Completely Open Source Laptop Goes on Sale". Wired . 2 April 2014.
- ↑ "Novena Helps Hackers Build Their Own Laptop". 2 April 2014.
- ↑ Holbrook, Stett (2 April 2014). "The World's First Open Source Laptop Makes Its Debut". Make . Retrieved 12 March 2017.
- ↑ "J-Core Open Processor" . Retrieved 19 June 2016.
- ↑ j-core Design Walkthrough (PDF). Embedded Linux Conference. San Diego. 6 April 2016. Retrieved 19 June 2016.