| Line 32... |
Line 32... |
SIGNAL dmem_o : dmem_out_type;
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SIGNAL dmem_o : dmem_out_type;
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SIGNAL imem_o : imem_out_type;
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SIGNAL imem_o : imem_out_type;
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SIGNAL dmem_i : dmem_in_type;
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SIGNAL dmem_i : dmem_in_type;
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SIGNAL imem_i : imem_in_type;
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SIGNAL imem_i : imem_in_type;
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SIGNAL sys_clk_i : std_ulogic := '0';
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SIGNAL sys_clk_i : std_logic := '0';
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SIGNAL sys_int_i : std_ulogic := '0';
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SIGNAL sys_int_i : std_logic := '0';
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SIGNAL sys_rst_i : std_ulogic := '0';
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SIGNAL sys_rst_i : std_logic := '0';
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SIGNAL sys_ena_i : std_ulogic := '1';
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SIGNAL sys_ena_i : std_logic := '1';
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CONSTANT std_out_adr : std_ulogic_vector(CFG_DMEM_SIZE - 1 DOWNTO 0) := X"FFFFFFC0";
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CONSTANT std_out_adr : std_logic_vector(CFG_DMEM_SIZE - 1 DOWNTO 0) := X"FFFFFFC0";
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CONSTANT rom_size : integer := 16;
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CONSTANT rom_size : integer := 16;
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CONSTANT ram_size : integer := 16;
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CONSTANT ram_size : integer := 16;
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SIGNAL mem_enable : std_ulogic;
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SIGNAL mem_enable : std_logic;
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SIGNAL chr_enable : std_ulogic;
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SIGNAL chr_enable : std_logic;
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SIGNAL chr_read : std_ulogic;
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SIGNAL chr_read : std_logic;
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SIGNAL sel_o : std_ulogic_vector(3 DOWNTO 0);
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SIGNAL sel_o : std_logic_vector(3 DOWNTO 0);
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SIGNAL mem_dat : std_ulogic_vector(31 DOWNTO 0);
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SIGNAL mem_dat : std_logic_vector(31 DOWNTO 0);
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SIGNAL chr_dat : std_ulogic_vector(31 DOWNTO 0);
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SIGNAL chr_dat : std_logic_vector(31 DOWNTO 0);
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SIGNAL chr_cnt : integer := 0;
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SIGNAL chr_cnt : integer := 0;
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BEGIN
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BEGIN
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sys_clk_i <= NOT sys_clk_i AFTER 10000 ps;
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sys_clk_i <= NOT sys_clk_i AFTER 10000 ps;
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Line 67... |
dmem_i.dat_i <= chr_dat WHEN chr_read = '1' ELSE mem_dat;
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dmem_i.dat_i <= chr_dat WHEN chr_read = '1' ELSE mem_dat;
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-- Character device
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-- Character device
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stdio: PROCESS(sys_clk_i)
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stdio: PROCESS(sys_clk_i)
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VARIABLE s : line;
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VARIABLE s : line;
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VARIABLE byte : std_ulogic_vector(7 DOWNTO 0);
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VARIABLE byte : std_logic_vector(7 DOWNTO 0);
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VARIABLE char : character;
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VARIABLE char : character;
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BEGIN
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BEGIN
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IF rising_edge(sys_clk_i) THEN
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IF rising_edge(sys_clk_i) THEN
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IF chr_enable = '1' THEN
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IF chr_enable = '1' THEN
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IF dmem_o.we_o = '1' THEN
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IF dmem_o.we_o = '1' THEN
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