real to integer conversion

[Jan]

Hi,

I have real variable r for <-1.0 to 1.0> and I need N bit 2'complent representation.

How could I convert this in VHDL?
How can I muliplicate variables?
r1 := CONSTANT*r doesn't work

I need somethig as
r_fixed_int <= std_logic_vector(to_signed(integer(r1),16));

Thanks

Jan

 

[Neo]

You will have to write your own conversion functions for that. But
checkout the vhdl 200x fixed and floating point packages if they can be
of any help.

 

[Jan]

Problem is solved...

the CONSTANT have to be real, it means 65535.0 for example.

Jan