history/display: backspace logic

[hwmod.git] / src / beh_display_tb.vhd

diff --git a/src/beh_display_tb.vhd b/src/beh_display_tb.vhd
index 166510a7f2f7f6afbdd94272ecd0ecb6e9078be0..5b6e6a15ed61c2514cf64ac074161594453b1439 100644 (file)
--- a/src/beh_display_tb.vhd
+++ b/src/beh_display_tb.vhd
@@ -17,7 +17,7 @@ architecture sim of beh_display_tb is
        signal command : std_logic_vector(COMMAND_SIZE - 1 downto 0);
        signal command_data : std_logic_vector(3 * COLOR_SIZE + CHAR_SIZE -1 downto 0);
        -- history/display
-       signal d_new_eingabe, d_new_result : std_logic;
+       signal d_new_eingabe, d_new_result, d_new_bs : std_logic;
        signal d_zeile : hzeile;
        signal d_spalte : hspalte;
        signal d_get, d_done : std_logic;
@@ -36,6 +36,7 @@ begin
                -- history
                d_new_eingabe => d_new_eingabe,
                d_new_result => d_new_result,
+               d_new_bs => d_new_bs,
                d_zeile => d_zeile,
                d_spalte => d_spalte,
                d_get => d_get,
@@ -105,6 +106,25 @@ begin
                        i := i + 1;
                end loop;
 
+               icwait(sys_clk, 2);
+               d_new_result <= '1';
+               icwait(sys_clk, 2);
+               d_new_result <= '0';
+
+               -- fuer NOP
+               free <= '0';
+               icwait(sys_clk, 1);
+               free <= '1';
+               icwait(sys_clk, 2);
+
+               -- fuer NOP
+               free <= '0';
+               icwait(sys_clk, 1);
+               free <= '1';
+               icwait(sys_clk, 1);
+               icwait(sys_clk, 1);
+
+
 
                if checkall then
                        report "alle testfaelle des Displays waren erfolgreich!";