Acquiring data from files

I am trying to multiply a series of values that I am getting from txt files.
My ideia is to get the data from 1 file, multiply for every data from the second file, get the second valor from the first file and again multiply it with all the values in the second file and so on.
Can anyone give me a light?




estimulo: process
variable linha : LINE;
variable valor1, valor2 : std_logic_vector(tamanho-1 downto 0);
variable decisao : boolean;
begin
file_open(constante, "C:/Users/Eduardo/Desktop/Pos/VHDL/projfinal/proj7/vhdl/constante.txt", read_mode);
file_open(variavelx, "C:/Users/Eduardo/Desktop/Pos/VHDL/projfinal/proj7/vhdl/variavelx.txt", read_mode);
wait until (rst = '0');
report "fim do reset";
while not endfile(variavelx) loop
readline(variavelx, linha);
read (linha, valor2);
b_i <= (unsigned(valor2(tamanho-1 downto 0)));

while not endfile(constante) loop
readline(constante, linha);
read (linha, valor1);
a_i <= (unsigned(valor1(tamanho-1 downto 0)));
read (linha, decisao);
caso <= decisao;
report "subindo valores";
wait for 3*clk_period;
end loop;