| Line 30... |
Line 30... |
-- A scan flip flop, aka selectable input ff.
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-- A scan flip flop, aka selectable input ff.
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component scanFF
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component scanFF
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generic (
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generic (
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W : integer := 8);
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W : integer := 8);
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port (
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port (
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clk,rst,ena,sel : std_logic; -- The usual control signals
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clk,rst,ena,sel : in std_logic; -- The usual control signals
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d0,d1 : std_logic_vector (W-1 downto 0); -- The two operands.
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d0,d1 : in std_logic_vector (W-1 downto 0); -- The two operands.
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q : std_logic_vector (W-1 downto 0) -- The selected data.
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q : out std_logic_vector (W-1 downto 0) -- The selected data.
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);
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);
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end component;
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end component;
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--A one stage pipe (1 Clk) a+b+c with w width bits in input as well as output.
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--A one stage pipe (1 Clk) a+b+c with w width bits in input as well as output.
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--As a fixed signed addtion we have:
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--As a fixed signed addtion we have:
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| Line 198... |
Line 198... |
port (
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port (
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-- The usual control signals.
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-- The usual control signals.
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clk, rst, pipeOn : in std_logic;
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clk, rst, pipeOn : in std_logic;
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intd : in std_logic;
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intq : out std_logic;
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-- This is the reference column identification input.
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-- This is the reference column identification input.
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cIdd : in std_logic_vector (IDW - 1 downto 0);
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cIdd : in std_logic_vector (IDW - 1 downto 0);
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-- This is the result column identification output.
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-- This is the result column identification output.
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cIdq : out std_logic_vector (IDW - 1 downto 0);
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cIdq : out std_logic_vector (IDW - 1 downto 0);
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refk : in std_logic_vector (W1 - 1 downto 0); -- This is the columns sphere constant
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colk : in std_logic_vector (W1 - 1 downto 0); -- This is the reference sphere constant
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selk : out std_logic_vector (W1 - 1 downto 0); -- This is the selected sphere constant
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-- This is the reference projection incoming from the previous cell.
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-- This is the reference projection incoming from the previous cell.
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refvd : in std_logic_vector (W1 - 1 downto 0);
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refvd : in std_logic_vector (W1 - 1 downto 0);
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-- This is the sphere position over the ray traced vector projection.
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-- This is the sphere position over the ray traced vector projection.
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colvd : in std_logic_vector (W1 - 1 downto 0);
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colvd : in std_logic_vector (W1 - 1 downto 0);
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-- This is the smallest value between refvd and colvd.
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-- This is the smallest value between refvd and colvd.
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