The Fujitsu FR-V (Fujitsu RISC-VLIW) is one of the very few processors ever able to process both a very long instruction word (VLIW) and vector processor instructions at the same time, increasing throughput with high parallel computing while increasing performance per watt and hardware efficiency. The family was presented in 1999.[1] Its design was influenced by the VPP500/5000 models of the Fujitsu VP/2000 vector processor supercomputer line.[2]
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Featuring a 1–8 way very long instruction word (VLIW, Multiple Instruction Multiple Data (MIMD), up to 256 bit) instruction set it additionally uses a 4-way single instruction, multiple data (SIMD) vector processor core. A 32-bit RISC instruction set in the superscalar core is combined with most variants integrating a dual 16-bit media processor also in VLIW and vector architecture. Each processor core is superpipelined as well as 4-unit superscalar.
A typical integrated circuit integrates a system on a chip and further multiplies speed by integrating multiple cores. Due to the very low power requirements it is a solution even for battery-powered applications.
- ^ Fujitsu Scientific & Technical Journal: FR500 VLIW-architecture High-performance Embedded Microprocessor by Takao Sukemura Archived 2008-08-18 at the Wayback Machine
- ^ 8way VLIW CPU quad-core CPU Fujitsu Laboratories (translated)