Radix – 4 Reciprocal Square Root IP Core

The floating point unit (fpu64_rx4rsqrt) is processing unit which allows arithmetic operations on floating point numbers. The fpu64_rx4rsqrt complies fully with the IEEE 754 Standard 1.

Features

1. supports operations:

   * Reciprocal square root (RSQRT)
   * Square-root (SQRT)
   * Reciprocal (RECP)
   * Divide (DIV)

2. Data type and formats :

   * Single precision
   * Double precision
   * Demoralized number
   * Zero value 
   * Infinity
   * Not a Number (Nan's)

3. Floating-point exceptions:

   * Signaling Nan's
   * Infinity / Infinity
   * Zero / Zero
   * Infinity x Zero
   * Invalid Square Root
   * Zero Divide Exception
   * Overflow Exception
   * Underflow Exception

4. Rounding modes are supported:

   * Round to nearest even
   * Round to zero
   * Round up
   * Round down

Number of clock cycles for each operation in formats double precision and single precision

	* RSQRT 27 13
	* SQRT  29 14
	* RSCP  30 15
	* DIV   30 15
	

The project is implemented in the Verilog language and has been tested on more than 4 million (2**22) test vectors for each operation.

email: svv4svv@gmail.com