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divadnauj |
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library ieee;
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use ieee.std_logic_1164.all;
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use ieee.numeric_std.all;
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use std.textio.all;
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use ieee.std_logic_textio.all; -- require for writing/reading std_logic etc
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entity sfu_tb is
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end entity sfu_tb;
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architecture verification of sfu_tb is
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file f_input_cordic : text;
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file f_input_rsqrt : text;
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file f_input_log2 : text;
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file f_input_ex2 : text;
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file f_output_sin : text;
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file f_output_cos: text;
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file f_output_rsqrt : text;
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file f_output_log2 : text;
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file f_output_ex2 : text;
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signal s_clk_i :std_logic :='0';
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signal s_rst_n :std_logic :='0';
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signal s_start_i :std_logic :='0';
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signal s_src1_i :std_logic_vector(31 downto 0) :=(others=>'0');
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signal s_selop_i :std_logic_vector(2 downto 0) :=(others=>'0');
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signal s_Result_o :std_logic_vector(31 downto 0);
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signal s_stall_o :std_logic;
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signal lsfr_input :std_logic_vector(31 downto 0):=X"00000001";
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signal lsfr_op :std_logic_vector(3 downto 0) :="1000";
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begin
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DUT: entity work.sfu
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port map(clk_i => s_clk_i,
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rst_n => s_rst_n,
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start_i => s_start_i,
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src1_i => s_src1_i,
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selop_i => s_selop_i,
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Result_o => s_Result_o,
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stall_o => s_stall_o);
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clk_gen: process
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begin
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wait for 50 ns;
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s_clk_i <= not s_clk_i;
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end process;
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rst_gen: process
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begin
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wait for 500 ns;
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s_rst_n <= '1';
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wait;
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end process;
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gata_gen:process
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variable v_i_line : line; -- read lines one by one from f_input
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variable v_o_line : line; -- write lines one by one to f_output
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variable v_x : std_logic_vector(31 downto 0); -- valor de entrada
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variable v_comma : character;
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variable v_character: character;
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variable hex_val : std_logic_vector(3 downto 0);
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variable offset : integer;
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begin
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-- open files
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file_open(f_input_cordic, "input_cordic.csv", read_mode);
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file_open(f_input_rsqrt , "input_rsqrt.csv", read_mode);
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file_open(f_input_log2 , "input_log2.csv", read_mode);
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file_open(f_input_ex2 , "input_ex2.csv", read_mode);
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file_open(f_output_sin, "output_sin.csv", write_mode);
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file_open(f_output_cos, "output_cos.csv", write_mode);
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file_open(f_output_rsqrt , "output_rsqrt.csv", write_mode);
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file_open(f_output_log2 , "output_log2.csv", write_mode);
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file_open(f_output_ex2 , "output_ex2.csv", write_mode);
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wait on s_clk_i until s_rst_n='1';
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--========================SIN=============================================
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-- encabezado de texto
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write(v_o_line, string'("Input,Sin"));
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writeline(f_output_sin, v_o_line);
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-----------------------------------------------------------------------------
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readline(f_input_cordic, v_i_line); -- se omite linea de encabezado
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while not endfile(f_input_cordic) loop
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readline(f_input_cordic, v_i_line);
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-- lectura de hexadecimal
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offset := 0;
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while offset < v_x'left loop
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read(v_i_line, v_character);
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case v_character is
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when '0' => hex_val := "0000";
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when '1' => hex_val := "0001";
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when '2' => hex_val := "0010";
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when '3' => hex_val := "0011";
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when '4' => hex_val := "0100";
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when '5' => hex_val := "0101";
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when '6' => hex_val := "0110";
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when '7' => hex_val := "0111";
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when '8' => hex_val := "1000";
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when '9' => hex_val := "1001";
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when 'A' | 'a' => hex_val := "1010";
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when 'B' | 'b' => hex_val := "1011";
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when 'C' | 'c' => hex_val := "1100";
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when 'D' | 'd' => hex_val := "1101";
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when 'E' | 'e' => hex_val := "1110";
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when 'F' | 'f' => hex_val := "1111";
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when others => hex_val := "XXXX";
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assert false report "Found non-hex character '" & v_character & "'";
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end case;
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v_x(v_x'left - offset downto v_x'left-offset-3) := hex_val;
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offset := offset + 4;
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end loop;
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-- iniciar calculo
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s_selop_i <= "000";
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s_src1_i <= v_x;
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s_start_i <= '1';
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wait until falling_edge(s_clk_i);
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s_start_i <= '0';
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wait on s_clk_i until s_stall_o='0';
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-- escribir resultados
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hwrite(v_o_line, s_src1_i);
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write(v_o_line, string'(","));
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hwrite(v_o_line, s_Result_o);
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writeline(f_output_sin, v_o_line);
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wait until falling_edge(s_clk_i);
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end loop;
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--file_close(f_output_sin);
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file_close(f_input_cordic);
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file_open(f_input_cordic, "input_cordic.csv", read_mode);
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--========================COS=============================================
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-- encabezado de texto
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write(v_o_line, string'("Input,cos"));
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writeline(f_output_cos, v_o_line);
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-----------------------------------------------------------------------------
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readline(f_input_cordic, v_i_line); -- se omite linea de encabezado
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while not endfile(f_input_cordic) loop
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readline(f_input_cordic, v_i_line);
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-- lectura de hexadecimal
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offset := 0;
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while offset < v_x'left loop
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read(v_i_line, v_character);
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case v_character is
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when '0' => hex_val := "0000";
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when '1' => hex_val := "0001";
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when '2' => hex_val := "0010";
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when '3' => hex_val := "0011";
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when '4' => hex_val := "0100";
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when '5' => hex_val := "0101";
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when '6' => hex_val := "0110";
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when '7' => hex_val := "0111";
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when '8' => hex_val := "1000";
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when '9' => hex_val := "1001";
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when 'A' | 'a' => hex_val := "1010";
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when 'B' | 'b' => hex_val := "1011";
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when 'C' | 'c' => hex_val := "1100";
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when 'D' | 'd' => hex_val := "1101";
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when 'E' | 'e' => hex_val := "1110";
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when 'F' | 'f' => hex_val := "1111";
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when others => hex_val := "XXXX";
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assert false report "Found non-hex character '" & v_character & "'";
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end case;
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v_x(v_x'left - offset downto v_x'left-offset-3) := hex_val;
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offset := offset + 4;
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end loop;
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-- iniciar calculo
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s_selop_i <= "001";
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s_src1_i <= v_x;
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s_start_i <= '1';
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wait until falling_edge(s_clk_i);
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s_start_i <= '0';
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wait on s_clk_i until s_stall_o='0';
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-- escribir resultados
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hwrite(v_o_line, s_src1_i);
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write(v_o_line, string'(","));
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hwrite(v_o_line, s_Result_o);
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writeline(f_output_cos, v_o_line);
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wait until falling_edge(s_clk_i);
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end loop;
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--=======================RSQRT=============================================
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-- encabezado de texto
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write(v_o_line, string'("Input,rsqrt"));
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writeline(f_output_rsqrt, v_o_line);
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-----------------------------------------------------------------------------
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readline(f_input_rsqrt, v_i_line); -- se omite linea de encabezado
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while not endfile(f_input_rsqrt) loop
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readline(f_input_rsqrt, v_i_line);
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-- lectura de hexadecimal
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offset := 0;
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while offset < v_x'left loop
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read(v_i_line, v_character);
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case v_character is
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when '0' => hex_val := "0000";
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when '1' => hex_val := "0001";
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when '2' => hex_val := "0010";
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when '3' => hex_val := "0011";
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when '4' => hex_val := "0100";
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when '5' => hex_val := "0101";
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when '6' => hex_val := "0110";
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when '7' => hex_val := "0111";
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when '8' => hex_val := "1000";
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when '9' => hex_val := "1001";
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when 'A' | 'a' => hex_val := "1010";
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when 'B' | 'b' => hex_val := "1011";
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when 'C' | 'c' => hex_val := "1100";
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when 'D' | 'd' => hex_val := "1101";
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when 'E' | 'e' => hex_val := "1110";
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when 'F' | 'f' => hex_val := "1111";
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when others => hex_val := "XXXX";
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assert false report "Found non-hex character '" & v_character & "'";
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end case;
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v_x(v_x'left - offset downto v_x'left-offset-3) := hex_val;
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offset := offset + 4;
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end loop;
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-- iniciar calculo
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s_selop_i <= "010";
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s_src1_i <= v_x;
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s_start_i <= '1';
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wait until falling_edge(s_clk_i);
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s_start_i <= '0';
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wait on s_clk_i until s_stall_o='0';
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-- escribir resultados
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hwrite(v_o_line, s_src1_i);
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write(v_o_line, string'(","));
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hwrite(v_o_line, s_Result_o);
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writeline(f_output_rsqrt, v_o_line);
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wait until falling_edge(s_clk_i);
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end loop;
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--========================LOG2=============================================
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-- encabezado de texto
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write(v_o_line, string'("Input,log2"));
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writeline(f_output_log2, v_o_line);
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-----------------------------------------------------------------------------
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readline(f_input_log2, v_i_line); -- se omite linea de encabezado
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while not endfile(f_input_log2) loop
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readline(f_input_log2, v_i_line);
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-- lectura de hexadecimal
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offset := 0;
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while offset < v_x'left loop
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read(v_i_line, v_character);
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case v_character is
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when '0' => hex_val := "0000";
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when '1' => hex_val := "0001";
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when '2' => hex_val := "0010";
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when '3' => hex_val := "0011";
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when '4' => hex_val := "0100";
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when '5' => hex_val := "0101";
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when '6' => hex_val := "0110";
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when '7' => hex_val := "0111";
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when '8' => hex_val := "1000";
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when '9' => hex_val := "1001";
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when 'A' | 'a' => hex_val := "1010";
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when 'B' | 'b' => hex_val := "1011";
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when 'C' | 'c' => hex_val := "1100";
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when 'D' | 'd' => hex_val := "1101";
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when 'E' | 'e' => hex_val := "1110";
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when 'F' | 'f' => hex_val := "1111";
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when others => hex_val := "XXXX";
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assert false report "Found non-hex character '" & v_character & "'";
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end case;
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v_x(v_x'left - offset downto v_x'left-offset-3) := hex_val;
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offset := offset + 4;
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end loop;
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273 |
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-- iniciar calculo
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s_selop_i <= "011";
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s_src1_i <= v_x;
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s_start_i <= '1';
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wait until falling_edge(s_clk_i);
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s_start_i <= '0';
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wait on s_clk_i until s_stall_o='0';
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-- escribir resultados
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hwrite(v_o_line, s_src1_i);
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write(v_o_line, string'(","));
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hwrite(v_o_line, s_Result_o);
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285 |
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writeline(f_output_log2, v_o_line);
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286 |
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wait until falling_edge(s_clk_i);
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end loop;
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288 |
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--========================EX22=============================================
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-- encabezado de texto
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290 |
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write(v_o_line, string'("Input,ex2"));
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291 |
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writeline(f_output_ex2, v_o_line);
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-----------------------------------------------------------------------------
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293 |
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readline(f_input_ex2, v_i_line); -- se omite linea de encabezado
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294 |
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while not endfile(f_input_ex2) loop
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295 |
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readline(f_input_ex2, v_i_line);
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296 |
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-- lectura de hexadecimal
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297 |
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offset := 0;
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298 |
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while offset < v_x'left loop
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299 |
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read(v_i_line, v_character);
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300 |
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case v_character is
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301 |
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when '0' => hex_val := "0000";
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302 |
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when '1' => hex_val := "0001";
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303 |
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when '2' => hex_val := "0010";
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304 |
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when '3' => hex_val := "0011";
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305 |
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when '4' => hex_val := "0100";
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306 |
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when '5' => hex_val := "0101";
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307 |
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when '6' => hex_val := "0110";
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308 |
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when '7' => hex_val := "0111";
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309 |
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when '8' => hex_val := "1000";
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310 |
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when '9' => hex_val := "1001";
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311 |
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when 'A' | 'a' => hex_val := "1010";
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312 |
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when 'B' | 'b' => hex_val := "1011";
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313 |
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when 'C' | 'c' => hex_val := "1100";
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314 |
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when 'D' | 'd' => hex_val := "1101";
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315 |
|
|
when 'E' | 'e' => hex_val := "1110";
|
316 |
|
|
when 'F' | 'f' => hex_val := "1111";
|
317 |
|
|
when others => hex_val := "XXXX";
|
318 |
|
|
assert false report "Found non-hex character '" & v_character & "'";
|
319 |
|
|
end case;
|
320 |
|
|
v_x(v_x'left - offset downto v_x'left-offset-3) := hex_val;
|
321 |
|
|
offset := offset + 4;
|
322 |
|
|
end loop;
|
323 |
|
|
|
324 |
|
|
-- iniciar calculo
|
325 |
|
|
s_selop_i <= "100";
|
326 |
|
|
s_src1_i <= v_x;
|
327 |
|
|
s_start_i <= '1';
|
328 |
|
|
wait until falling_edge(s_clk_i);
|
329 |
|
|
s_start_i <= '0';
|
330 |
|
|
wait on s_clk_i until s_stall_o='0';
|
331 |
|
|
-- escribir resultados
|
332 |
|
|
hwrite(v_o_line, s_src1_i);
|
333 |
|
|
write(v_o_line, string'(","));
|
334 |
|
|
hwrite(v_o_line, s_Result_o);
|
335 |
|
|
writeline(f_output_ex2, v_o_line);
|
336 |
|
|
wait until falling_edge(s_clk_i);
|
337 |
|
|
end loop;
|
338 |
|
|
-----------------------------------------------------------------------------
|
339 |
|
|
-- close files
|
340 |
|
|
file_close(f_input_cordic);
|
341 |
|
|
file_close(f_input_rsqrt );
|
342 |
|
|
file_close(f_input_log2 );
|
343 |
|
|
file_close(f_input_ex2 );
|
344 |
|
|
|
345 |
|
|
file_close(f_output_sin );
|
346 |
|
|
file_close(f_output_cos );
|
347 |
|
|
file_close(f_output_rsqrt);
|
348 |
|
|
file_close(f_output_log2 );
|
349 |
|
|
file_close(f_output_ex2 );
|
350 |
|
|
|
351 |
|
|
|
352 |
|
|
for i in 0 to 20000 loop
|
353 |
|
|
|
354 |
|
|
s_selop_i <= lsfr_op(2 downto 0);
|
355 |
|
|
s_src1_i <= lsfr_input;
|
356 |
|
|
s_start_i <= '1';
|
357 |
|
|
wait until falling_edge(s_clk_i);
|
358 |
|
|
s_start_i <= '0';
|
359 |
|
|
wait on s_clk_i until s_stall_o='0';
|
360 |
|
|
wait until falling_edge(s_clk_i);
|
361 |
|
|
lsfr_input(30 downto 0) <=lsfr_input(31 downto 1);
|
362 |
|
|
lsfr_input(31) <= lsfr_input(0) xor lsfr_input(5)xor lsfr_input(12)xor lsfr_input(15)xor lsfr_input(22)xor lsfr_input(24);
|
363 |
|
|
lsfr_op(2 downto 0) <= lsfr_op(3 downto 1);
|
364 |
|
|
lsfr_op(3) <= lsfr_op(0) xor lsfr_op(2);
|
365 |
|
|
end loop;
|
366 |
|
|
|
367 |
|
|
wait;
|
368 |
|
|
end process;
|
369 |
|
|
|
370 |
|
|
|
371 |
|
|
end verification;
|