--for GHDL environment
--itinialize with the rom_fill function.
-signal p_rom : rom_array := rom_fill;
+--signal p_rom : rom_array := rom_fill;
--for Quartus II environment
---signal p_rom : rom_array;
---attribute ram_init_file : string;
---attribute ram_init_file of p_rom : signal is "sample1-prg.hex";
+signal p_rom : rom_array;
+attribute ram_init_file : string;
+attribute ram_init_file of p_rom : signal is "sample1-prg.hex";
signal wk_data : std_logic_vector (dbus_size - 1 downto 0);