src/beh_parser_tb.vhd

   1 library ieee;
   2 use ieee.std_logic_1164.all;
   3 use ieee.numeric_std.all;
   4 use work.gen_pkg.all;
   5
   6 entity beh_parser_tb is
   7 end entity beh_parser_tb;
   8
   9 architecture sim of beh_parser_tb is
  10         -- system
  11         signal sys_clk, sys_res_n : std_logic;
  12         -- history
  13         signal p_rw, p_rget, p_rdone, p_wtake, p_wdone, p_finished : std_logic;
  14         signal p_read, p_write : hbyte;
  15         signal p_spalte : hspalte;
  16
  17         -- alu
  18         signal opcode : alu_ops;
  19         signal op1, op2, op3 : csigned;
  20         signal do_calc, calc_done : std_logic;
  21
  22         --scanner
  23         signal do_it : std_logic;
  24         signal finished : std_logic;
  25
  26         signal stop : boolean := false;
  27 begin
  28         inst : entity work.parser(beh)
  29         port map
  30         (
  31                 sys_clk => sys_clk,
  32                 sys_res_n => sys_res_n,
  33                 p_rw => p_rw,
  34                 p_spalte => p_spalte,
  35                 p_rget => p_rget,
  36                 p_rdone => p_rdone,
  37                 p_read => p_read,
  38                 p_wtake => p_wtake,
  39                 p_wdone => p_wdone,
  40                 p_write => p_write,
  41                 p_finished => p_finished,
  42                 -- ALU
  43                 opcode => opcode,
  44                 op1 => op1,
  45                 op2 => op2,
  46                 op3 => op3,
  47                 do_calc => do_calc,
  48                 calc_done => calc_done,
  49                 -- TODO: calc_error : in std_logic;
  50                 -- Scanner
  51                 do_it => do_it,
  52                 finished => finished
  53         );
  54
  55         instalu : entity work.alu(beh)
  56         port map
  57         (
  58                 sys_clk => sys_clk,
  59                 sys_res_n => sys_res_n,
  60                 do_calc => do_calc,
  61                 calc_done => calc_done,
  62                 op1 => op1,
  63                 op2 => op2,
  64                 op3 => op3,
  65                 opcode => opcode
  66         );
  67
  68         process
  69         begin
  70                 sys_clk <= '0';
  71                 wait for 15 ns;
  72                 sys_clk <= '1';
  73                 wait for 15 ns;
  74                 if stop = true then
  75                         wait;
  76                 end if;
  77         end process;
  78
  79         process
  80                 -- textio stuff
  81                 use std.textio.all;
  82                 file f : text open read_mode is "../../src/parser.test";
  83                 variable l : line;
  84
  85                 variable input : hstring;
  86                 variable expectedresult : hstring;
  87                 variable realresult : hstring;
  88
  89                 variable checkall : boolean := true;
  90                 variable run_tc : boolean := true;
  91                 variable i, j, k : natural;
  92         begin
  93                 -- init & reset
  94                 sys_res_n <= '0';
  95                 p_rdone <= '0';
  96                 p_wdone <= '0';
  97                 p_read <= (others => '0');
  98                 do_it <= '0';
  99
 100                 icwait(sys_clk, 5);
 101                 sys_res_n <= '1';
 102
 103                 i := 1;
 104                 f_loop : while not endfile(f) loop
 105                         realresult := (others => character'val(0));
 106
 107                         f1_loop : while not endfile(f) loop
 108                                 readline (f, l);
 109                                 input := (others => character'val(0));
 110                                 if (l'length <= 72) then
 111                                         input(1 to l'length) := l.all;
 112                                         if (input(1) = '#') then
 113                                                 next f1_loop;
 114                                         else
 115                                                 exit f1_loop;
 116                                         end if;
 117                                 else
 118                                         report "fehler in parser.test: eingabe zu lange in testfall " & natural'image(i);
 119                                         next f_loop;
 120                                 end if;
 121                         end loop f1_loop;
 122
 123                         f2_loop : while not endfile(f) loop
 124                                 readline (f, l);
 125                                 expectedresult := (others => character'val(0));
 126                                 if (l'length <= 72) then
 127                                         expectedresult(1 to l'length) := l.all;
 128                                         if (expectedresult(1) = '#') then
 129                                                 next f2_loop;
 130                                         else
 131                                                 exit f2_loop;
 132                                         end if;
 133                                 else
 134                                         report "fehler in parser.test: eingabe zu lange in testfall " & natural'image(i);
 135                                         next f_loop;
 136                                 end if;
 137                         end loop f2_loop;
 138
 139                         report "testcase(" & natural'image(i) & ").input: " & input;
 140                         report "testcase(" & natural'image(i) & ").expectedresult: " & expectedresult;
 141                         i := i + 1;
 142
 143                         icwait(sys_clk, 5);
 144                         do_it <= '1';
 145                         run_tc := true;
 146                         j := 1; k := 1;
 147
 148                         while run_tc loop
 149                                 wait on p_rget, p_wtake, p_finished, finished;
 150                                 icwait(sys_clk, 2);
 151
 152                                 if p_rget = '1' then
 153                                         p_read <= hbyte( to_unsigned(character'pos(input(j)),8) );
 154                                         p_rdone <= '1';
 155                                         j := j + 1;
 156                                 end if;
 157                                 if p_rget = '0' then
 158                                         p_rdone <= '0';
 159                                 end if;
 160
 161                                 if p_wtake = '1' then
 162                                         realresult(k) := character'val(to_integer(unsigned(p_write)));
 163                                         p_wdone <= '1';
 164                                         k := k + 1;
 165                                 end if;
 166                                 if p_wtake = '0' then
 167                                         p_wdone <= '0';
 168                                 end if;
 169
 170                                 if p_finished = '1' or finished = '1' then
 171                                         run_tc := false;
 172                                 end if;
 173                         end loop;
 174
 175                         do_it <= '0';
 176                         report "realresult: " & realresult;
 177                         if realresult /= expectedresult then
 178                                 checkall := false;
 179                         end if;
 180                         report "==================";
 181                 end loop f_loop;
 182
 183                 if checkall then
 184                         report "alle testfaelle des Parser waren erfolgreich!";
 185                 else
 186                         report "nicht alle testfaelle des Parsers waren erfolgreich!";
 187                 end if;
 188                 stop <= true;
 189                 wait;
 190         end process;
 191 end architecture sim;