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Code Issues Releases Wiki Activity

Fixed video off outside visible area.

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This commit is contained in:
phoboz
2016-12-25 21:40:53 +01:00
parent 2c81265066
commit 9b0cf5004e
1 changed files with 3 additions and 17 deletions
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20
cores/sms/src/tv_video.vhd
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@@ -4,7 +4,7 @@ use IEEE.NUMERIC_STD.ALL;
entity tv_video is
Port (
clk8: in STD_LOGIC;
clk8: in std_logic;
x: out unsigned(8 downto 0);
y: out unsigned(7 downto 0);
color: in std_logic_vector(5 downto 0);
@@ -25,8 +25,6 @@ architecture Behavioral of tv_video is
signal screen_sync: std_logic;
signal vbl_sync: std_logic;
signal line_visible: std_logic;
signal line_even: std_logic;
signal hblank: std_logic;
signal vblank: std_logic;
signal visible: boolean;
@@ -65,8 +63,6 @@ begin
y <= y9(7 downto 0);
vblank <= '1' when hcount=0 and vcount=0 else '0';
hblank <= '1' when hcount=0 else '0';
line_visible <= not in_vbl;
line_even <= not vcount(0);
process (vcount,hcount)
begin
@@ -86,21 +82,11 @@ begin
end if;
end if;
end process;
--process (in_vbl,screen_sync,vbl_sync)
--begin
-- if in_vbl='1' then
-- hsync <= vbl_sync;
-- else
-- hsync <= screen_sync;
-- end if;
--end process;
--vsync <= '1';
hsync <= not screen_sync when in_vbl='0' else '0';
vsync <= not vbl_sync when in_vbl='1' else '0';
visible <= (line_visible = '1' and vcount>=33 and vcount<453);
visible <= (hcount>=166 and hcount<422 and vcount>=40 and vcount<232);
process (clk8)
begin