Fixed-point arithmetic

Andes RISC-V Vector Processor NX27V Is Upgraded to RVV 1.0

Retrieved on: 
Wednesday, December 2, 2020

RVV 1.0 includes new instructions such as vector floating-point reciprocal and reciprocal square-root estimate for math calculation.

Key Points: 
  • RVV 1.0 includes new instructions such as vector floating-point reciprocal and reciprocal square-root estimate for math calculation.
  • The NX27V was designed from ground up to be a Cray-like full vector compute engine.
  • Its Vector Registers are as wide as 512 bits each and can be extended to 4,096 bits through LMUL setting.
  • It supports RVV standard data types such as integer, fixed point, and floating-point as well as Andes-enhanced data types optimized for AI representations.