vhdl code to count the total number of bits

[chitra ranganath]

hi how to count the total no of bits stored in a register which includes even a space in between
???

 

[grieblm]

This function was posted in the comp.lang.vhdl group:

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Code VHDL - [expand]
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function count_ones(slv : std_logic_vector) return natural is 
  variable n_ones : natural := 0; 
begin 
  for i in slv'range loop 
    if slv(i) = '1' then 
      n_ones := n_ones + 1; 
    end if; 
  end loop; 
  return n_ones; 
end function count_ones;

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