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RISC-V International emits more open CPU specs | Liam Proven, The Register

By June 22, 2022June 30th, 2022No Comments

RISC-V International has grown its pile of royalty-free, open specifications, with additional documents covering firmware, hypervisors, and more.

RISC-V – pronounced “risk five”, and not to be confused with the other architecture of that name, RISC-5 – essentially sets out how a CPU core should work from a software point of view. Chip designers can implement these instruction set specifications in silicon, and there are a good number of big industry players backing it.

The latest specs lay out four features that compatible processors should adhere to. Two of them, E-Trace and Zmmul, will be useful for organizations building RISC-V hardware and software, and the other two could prove important in future, aiding the development of OSes to run on RISC-V computers.

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