Dealing with Fixed-point in VHDL

[darshkamal]

Hello
I'm a beginner in using VHDL : )
Breifly,I'm writing a code for CORDIC(a method that is used to evaluate sine and cosine)
The i/p and o/p should be a fixed-point number that's representing the angle in radians

The problem is that I have no idea to deal with fixed point numbers so that the code is sythsizable
I'll need addition and multiplication operations
Any one can help me please ?

 

[shaiko]

read this please
VHDL coding tips and tricks: Fixed Point Operations in VHDL : Tutorial Series Part 1

 

[darshkamal]

Thank you
But is it synthsizable ?

 

[shaiko]

Never tried it, but it should be.

 

[darshkamal]

Thank you very much