Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

Multiplication by 0,6

Hi i have an input of 8 bits and i need to make a multiplication by 0,6. I doesn't has to be precise so i thaught to do : INPUT * 19 /32 This is not a working code but is displays wh...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

--- Quote Start ---

Yea thaught so. I would be nicer to write a code in one line.

Thx anyway!

--- Quote End --- 


Library IEEE;
	use IEEE.Std_Logic_1164.all;
	use IEEE.numeric_std.all;
  . . .
dn <=  to_integer( unsigned( CAM_DATA )) ;
Q <=  std_logic_vector( to_unsigned( dn * 16 + dn * 2 +dn  , 13))(12 downto 5) ;
-- or in 1 line
Q <=  std_logic_vector( to_unsigned(  to_integer( unsigned(  CAM_DATA )) * 16 +  to_integer( unsigned(  CAM_DATA )) * 2 +  to_integer( unsigned(  CAM_DATA ))  , 13))(12 downto 5) ;