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Line 35... |
signal font_row_sig : std_logic_vector(2 downto 0);
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signal font_row_sig : std_logic_vector(2 downto 0);
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signal font_col_sig : std_logic_vector(2 downto 0);
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signal font_col_sig : std_logic_vector(2 downto 0);
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signal pixel_sig : std_logic;
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signal pixel_sig : std_logic;
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signal video_on_sig : std_logic;
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signal video_on_sig : std_logic;
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BEGIN -- ARQUITECTURE
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BEGIN
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VGA_R_sig <= "0000";
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VGA_R_sig <= "0000";
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VGA_G_sig <= "0000";
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VGA_G_sig <= "0000";
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VGA_B_sig <= pixel_sig & pixel_sig & pixel_sig & pixel_sig;
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VGA_B_sig <= pixel_sig & pixel_sig & pixel_sig & pixel_sig;
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VRAM_WREN <= video_on_sig;
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VRAM_WREN <= video_on_sig;
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VRAM_CLOCK <= pixel_clock_sig;
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VRAM_CLOCK <= pixel_clock_sig;
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VRAM_ADDR <= (pixel_row_sig(9 downto 4) * "0101000" + pixel_column_sig(9 downto 4));
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VRAM_ADDR <= (pixel_row_sig(9 downto 4) * "0101000" + pixel_column_sig(9 downto 4));
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-- Fonts ROM read
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-- Fonts ROM read
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char_addr_sig <= VRAM_DATA - x"40" when (VRAM_DATA <= x"5B") else x"20";
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char_addr_sig <= VRAM_DATA;
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font_row_sig(2 downto 0) <= pixel_row_sig(3 downto 1);
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font_row_sig(2 downto 0) <= pixel_row_sig(3 downto 1);
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font_col_sig(2 downto 0) <= pixel_column_sig(3 downto 1);
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font_col_sig(2 downto 0) <= pixel_column_sig(3 downto 1);
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vga_sync_inst : work.vga_sync
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vga_sync_inst : work.vga_sync
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port map (
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port map (
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| Line 70... |
Line 70... |
);
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);
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char_rom_inst : work.char_rom
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char_rom_inst : work.char_rom
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port map (
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port map (
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clock => pixel_clock_sig,
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clock => pixel_clock_sig,
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character_address => char_addr_sig(5 downto 0),
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character_address => char_addr_sig,
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font_row => font_row_sig,
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font_row => font_row_sig,
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font_col => font_col_sig,
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font_col => font_col_sig,
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rom_mux_output => pixel_sig
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rom_mux_output => pixel_sig
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);
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);
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END A; -- ARQUITECTURE
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END A;
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No newline at end of file
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No newline at end of file
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