This floating point unit is conform to IEEE 754-2008 standards. Supported operations are compare, min-max, conversions, addition, subtruction, multiplication, fused multiply add, square root and division in single and double precisions. Except square root and division all operations are pipelined.

This unit uses canonical nan (not a number) form, if it generates any nan as output. E.g. 0x7FC00000 for single precision and 0x7FF8000000000000 for double precision. Therefore extra conditions are added in order compare outputs with testfloat data correctly by nan generation.

Square root and division calculations are using same subunit but different path (algorithm). This subunit has a generic variable performance. For functional iterations which are fast please use 1 and fixed point iterations which are slow use 0. This unit has also own multiplier.

The installation scripts need root permission in order to install packages and tools for simulation and testcase generation.