Hi to all!, I should define a new type in order to manage the floating point format (32 bit, single precision). I could define a subtype as follow: subtype fp_ieee754 is std_logic_vector(31 downto 0); I would define some attributes, for example: width should return the length of this subtype, sign should return the bit at position 31, exponent should >return the std_logic_vector(30 downto 23), etc.... So I could define a new signal of type fp_ieee754 and use its attributes, for example: signal number : fp_ieee754 := if number'sign = '0' then ... else ... end if; Is it possible? Thanks a lot! Vincenzo

Hi,
This is a very special question.
You should post it on

comp.lang.vhdl

The guys there probably know the answer.

Have a nice synthesis
Eilert