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Line 12... |
-- Declare constants
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-- Declare constants
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-- chars address and data bus size
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-- chars address and data bus size
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constant c_CHR_ADDR_BUS_W : integer := 11;
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constant c_CHR_ADDR_BUS_W : integer := 11;
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constant c_CHR_DATA_BUS_W : integer := 32;
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constant c_CHR_DATA_BUS_W : integer := 32;
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constant c_CHR_WE_BUS_W : integer := 4;
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-- internal used chars address and data bus size
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-- internal used chars address and data bus size
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constant c_INTCHR_ADDR_BUS_W : integer := 13;
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constant c_INTCHR_ADDR_BUS_W : integer := 13;
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constant c_INTCHR_DATA_BUS_W : integer := 8;
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constant c_INTCHR_DATA_BUS_W : integer := 8;
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constant c_H_FRONTPORCHpx : integer := 56; --also 60;
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constant c_H_FRONTPORCHpx : integer := 56; --also 60;
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constant c_H_PERIODpx : integer := c_H_DISPLAYpx +
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constant c_H_PERIODpx : integer := c_H_DISPLAYpx +
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c_H_BACKPORCHpx +
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c_H_BACKPORCHpx +
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c_H_SYNCTIMEpx +
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c_H_SYNCTIMEpx +
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c_H_FRONTPORCHpx;
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c_H_FRONTPORCHpx;
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constant c_H_COUNT_W : integer := 11; -- = ceil(ln2(c_H_PERIODpx))
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--
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--
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-- vertical timing signals (in lines count)
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-- vertical timing signals (in lines count)
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constant c_V_DISPLAYln : integer := 600;
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constant c_V_DISPLAYln : integer := 600;
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constant c_V_BACKPORCHln : integer := 23;
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constant c_V_BACKPORCHln : integer := 23;
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constant c_V_FRONTPORCHln : integer := 37;
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constant c_V_FRONTPORCHln : integer := 37;
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constant c_V_PERIODln : integer := c_V_DISPLAYln +
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constant c_V_PERIODln : integer := c_V_DISPLAYln +
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c_V_BACKPORCHln +
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c_V_BACKPORCHln +
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c_V_SYNCTIMEln +
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c_V_SYNCTIMEln +
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c_V_FRONTPORCHln;
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c_V_FRONTPORCHln;
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constant c_V_COUNT_W : integer := 10; -- = ceil(ln2(c_V_PERIODln))
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constant c_X_W : integer := c_H_COUNT_W;
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constant c_Y_W : integer := c_V_COUNT_W;
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-- constant c_CHARS_WIDTH: std_logic_vector(2 downto 0) := "111";
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-- constant c_CHARS_WIDTH: std_logic_vector(2 downto 0) := "111";
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-- constant c_CHARS_HEIGHT: std_logic_vector(3 downto 0) := "1111";
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-- constant c_CHARS_HEIGHT: std_logic_vector(3 downto 0) := "1111";
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-- constant c_CHARS_COLS: std_logic_vector(6 downto 0) := "1100011";
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-- constant c_CHARS_COLS: std_logic_vector(6 downto 0) := "1100011";
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-- constant c_CHARS_ROWS: std_logic_vector(5 downto 0) := "100100";
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-- constant c_CHARS_ROWS: std_logic_vector(5 downto 0) := "100100";
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-- to manage the background and cursor colors
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-- to manage the background and cursor colors
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constant c_BG_CUR_COLOR_ADDR : std_logic_vector(12 downto 0) := "0000001101100"; -- 108 BG:5..3 CUR:2..0
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constant c_CFG_BG_CUR_COLOR_ADDR : std_logic_vector(12 downto 0) := "0000001101100"; -- 108 BG:5..3 CUR:2..0
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-- to manage the cursor position
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-- to manage the cursor position
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constant c_CURS_XY1 : std_logic_vector(12 downto 0) := "0000001101101"; -- 109
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constant c_CFG_CURS_XY1 : std_logic_vector(12 downto 0) := "0000001101101"; -- 109
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constant c_CURS_XY2 : std_logic_vector(12 downto 0) := "0000001101110"; -- 110
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constant c_CFG_CURS_XY2 : std_logic_vector(12 downto 0) := "0000001101110"; -- 110
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constant c_CURS_XY3 : std_logic_vector(12 downto 0) := "0000001101111"; -- 111
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constant c_CFG_CURS_XY3 : std_logic_vector(12 downto 0) := "0000001101111"; -- 111
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end yavga_pkg;
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end yavga_pkg;
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package body yavga_pkg is
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package body yavga_pkg is
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