X-Git-Url: http://wien.tomnetworks.com/gitweb/?a=blobdiff_plain;f=src%2Ftextmode_vga%2Ffont_rom_beh.vhd;fp=src%2Ftextmode_vga%2Ffont_rom_beh.vhd;h=c01a3c05a4dc169aa996199210dbb1beae49dfbf;hb=c277013ff527af6b7951add2934084bb5e4e3a25;hp=0000000000000000000000000000000000000000;hpb=38ff39be4ca9a16fe08b3652ce616d150b3e139c;p=hwmod.git

diff --git a/src/textmode_vga/font_rom_beh.vhd b/src/textmode_vga/font_rom_beh.vhd
new file mode 100644
index 0000000..c01a3c0
--- /dev/null
+++ b/src/textmode_vga/font_rom_beh.vhd
@@ -0,0 +1,27 @@
+-------------------------------------------------------------------------
+--
+-- Filename: font_rom_beh.vhd
+-- =========
+--
+-- Short Description:
+-- ==================
+--   Behavioral architecture of the font ROM entity.
+--
+-------------------------------------------------------------------------
+
+library ieee;
+use ieee.std_logic_1164.all;
+use ieee.numeric_std.all;
+use work.font_pkg.all;
+
+architecture beh of font_rom is
+begin
+  process(vga_clk)
+    variable address : std_logic_vector(log2c(CHAR_COUNT) + log2c(CHAR_HEIGHT) - 1 downto 0);
+  begin
+    if rising_edge(vga_clk) then
+      address := char & char_height_pixel;
+      decoded_char <= FONT_TABLE(to_integer(unsigned(address)));
+    end if;
+  end process;
+end architecture beh;