diff options
Diffstat (limited to 'basys3/basys3.srcs')
| -rw-r--r-- | basys3/basys3.srcs/ppu_plut.vhd | 30 | ||||
| -rw-r--r-- | basys3/basys3.srcs/ppu_sprite_bg.vhd | 4 |
2 files changed, 9 insertions, 25 deletions
diff --git a/basys3/basys3.srcs/ppu_plut.vhd b/basys3/basys3.srcs/ppu_plut.vhd index d2e132e..2379274 100644 --- a/basys3/basys3.srcs/ppu_plut.vhd +++ b/basys3/basys3.srcs/ppu_plut.vhd @@ -34,7 +34,8 @@ architecture Behavioral of ppu_plut is end component; signal PLUT : std_logic_vector((64 * PPU_PAL_DATA_WIDTH)-1 downto 0) := (others => '0'); - signal CHECK_ZERO_CIDX : std_logic_vector(PPU_PALETTE_CIDX_WIDTH-1 downto 0) := (others => '0'); -- color in + signal COLOR : std_logic_vector(PPU_PAL_DATA_WIDTH-1 downto 0) := (others => '0'); -- COLORS RGB IN + signal CIDX_INT : integer := 0; begin RAM : component er_ram port map( CLK => CLK, @@ -44,26 +45,9 @@ begin DATA => PAL_DATA, REG => PLUT); - process(CLK, RESET) - variable COLOR : std_logic_vector(PPU_PAL_DATA_WIDTH-1 downto 0) := (others => '0'); -- COLORS RGB IN - variable CIDX_INT : integer := 0; - begin - if RESET = '1' then - PLUT <= (others => '0'); - else - if rising_edge (CLK) then - if (CIDX /= CHECK_ZERO_CIDX) then - CIDX_INT := to_integer(unsigned(CIDX)); - COLOR := PLUT((12 * CIDX_INT) + 11 downto (12*CIDX_INT)); - R <= COLOR(11 downto 8); - G <= COLOR(7 downto 4); - B <= COLOR(3 downto 0); - else - R <= x"0"; - G <= x"0"; - B <= x"0"; - end if; - end if; - end if; - end process; + CIDX_INT <= to_integer(unsigned(CIDX)); + COLOR <= PLUT((12 * CIDX_INT) + 11 downto (12*CIDX_INT)); + R <= COLOR(11 downto 8); + G <= COLOR(7 downto 4); + B <= COLOR(3 downto 0); end Behavioral; diff --git a/basys3/basys3.srcs/ppu_sprite_bg.vhd b/basys3/basys3.srcs/ppu_sprite_bg.vhd index 1892694..417210c 100644 --- a/basys3/basys3.srcs/ppu_sprite_bg.vhd +++ b/basys3/basys3.srcs/ppu_sprite_bg.vhd @@ -68,8 +68,8 @@ architecture Behavioral of ppu_sprite_bg is begin -- output drivers CIDX <= T_CIDX when OE = '1' else (others => 'Z'); - BAM_ADDR <= R_BAM_ADDR; - TMM_ADDR <= R_TMM_ADDR; + BAM_ADDR <= R_BAM_ADDR when state = PL_BAM_ADDR else (others => 'Z'); + TMM_ADDR <= R_TMM_ADDR when state = PL_TMM_ADDR else (others => 'Z'); T_BAM_DATA <= BAM_DATA; T_TMM_DATA <= TMM_DATA; -- CIDX combination |