| Line 90... |
Line 90... |
signal store_sec: std_logic_vector(55 downto 0) := (others => 'Z'); -- 7x 8bits securities identifier
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signal store_sec: std_logic_vector(55 downto 0) := (others => 'Z'); -- 7x 8bits securities identifier
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begin
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begin
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match: process (RX_CLK) is
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match: process (RX_CLK) is
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-- variable l : line;
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-- variable l : line;
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begin
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begin
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if rising_edge(RX_CLK) then
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if falling_edge(RX_CLK) then
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-- if falling_edge(RX_CLK) then
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if b1_px_valid = '1' then
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-- write (l, String'(" Item Rising Edge "));
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-- diagnostic (uncomment)
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-- for j in b1_id'range loop
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-- write (l, String'(" Item Falling Edge"));
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-- write(l, std_logic'image(b1_id(j)) );
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-- write (l, String'(" b1_px_type: "));
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-- end loop;
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-- write (l, String'(" instruction: "));
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-- for j in b1_px_type'range loop
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-- for j in b1_px_type'range loop
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-- write(l, std_logic'image(b1_px_type(j)) );
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-- write(l, std_logic'image(b1_px_type(j)) );
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-- end loop;
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-- end loop;
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-- write (l, String'(" item_id: "));
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-- for j in item_id'range loop
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-- write(l, std_logic'image(item_id(j)) );
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-- end loop;
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-- write (l, String'(" b1_id: "));
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-- for j in b1_id'range loop
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-- write(l, std_logic'image(b1_id(j)) );
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-- end loop;
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-- write (l, String'(" b1_px_valid: "));
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-- write (l, std_logic'image(b1_px_valid) );
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-- writeline ( output, l);
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-- writeline ( output, l);
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if b1_px_valid = '1' then
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if b1_px_type = std_logic_vector'("00000") then
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if b1_px_type = std_logic_vector'("00000") then
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-- do reset store and outputs
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-- do reset store and outputs
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store_px_type <= (others => '0');
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store_px_type <= (others => '0');
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store_buy_sell <= (others => '0'); -- 111 buy, 000 sell
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store_buy_sell <= (others => '0'); -- 111 buy, 000 sell
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store_px <= (others => '0'); -- price
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store_px <= (others => '0'); -- price
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| Line 121... |
Line 127... |
b2_qty <= (others => 'Z'); -- quantity
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b2_qty <= (others => 'Z'); -- quantity
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b2_sec <= (others => 'Z'); -- 7x 8bits securities identifier
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b2_sec <= (others => 'Z'); -- 7x 8bits securities identifier
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b2_id <= (others => 'Z'); -- unique/identifier/counter
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b2_id <= (others => 'Z'); -- unique/identifier/counter
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--
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--
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requires_reset <= '0';
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requires_reset <= '0';
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elsif b1_px_type = std_logic_vector'("00110") then
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elsif b1_px_type = std_logic_vector'("00110") then
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if store_buy_sell = b1_buy_sell and
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if store_buy_sell = b1_buy_sell and
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store_sec = b1_sec then
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store_sec = b1_sec then
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-- do set store from incoming price
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-- do set store from incoming price
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store_px_type <= b1_px_type;
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store_px_type <= b1_px_type;
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| Line 136... |
Line 141... |
b2_px_type <= std_logic_vector'(std_logic_vector'("00110"));
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b2_px_type <= std_logic_vector'(std_logic_vector'("00110"));
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b2_buy_sell <= (others => 'Z');
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b2_buy_sell <= (others => 'Z');
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b2_px <= (others => 'Z');
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b2_px <= (others => 'Z');
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b2_qty <= (others => 'Z');
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b2_qty <= (others => 'Z');
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b2_sec <= (others => 'Z');
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b2_sec <= (others => 'Z');
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b2_id <= (others => 'Z');
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b2_id <= item_id;
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requires_reset <= '1';
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requires_reset <= '1';
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else
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else
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if requires_reset = '1' then
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if requires_reset = '1' then
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b2_px_type <= (others => 'Z');
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b2_px_type <= (others => 'Z');
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b2_buy_sell <= (others => 'Z'); -- 111 buy, 000 sell
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b2_buy_sell <= (others => 'Z'); -- 111 buy, 000 sell
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| Line 149... |
Line 154... |
b2_sec <= (others => 'Z'); -- 7x 8bits securities identifier
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b2_sec <= (others => 'Z'); -- 7x 8bits securities identifier
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b2_id <= (others => 'Z'); -- unique/identifier/counter
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b2_id <= (others => 'Z'); -- unique/identifier/counter
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requires_reset <= '0';
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requires_reset <= '0';
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end if;
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end if;
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end if;
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end if;
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elsif b1_px_type = std_logic_vector'("01010") then
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elsif b1_px_type = std_logic_vector'("01010") then
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if item_id = b1_id then
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if item_id = b1_id then
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-- do set store and security from incoming price
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-- do set store and security from incoming price
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store_px_type <= b1_px_type;
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store_px_type <= b1_px_type;
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store_buy_sell <= b1_buy_sell;
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store_buy_sell <= b1_buy_sell;
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| Line 177... |
Line 181... |
b2_sec <= (others => 'Z'); -- 7x 8bits securities identifier
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b2_sec <= (others => 'Z'); -- 7x 8bits securities identifier
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b2_id <= (others => 'Z'); -- unique/identifier/counter
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b2_id <= (others => 'Z'); -- unique/identifier/counter
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requires_reset <= '0';
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requires_reset <= '0';
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end if;
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end if;
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end if;
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end if;
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elsif b1_px_type = std_logic_vector'("11100") then
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elsif b1_px_type = std_logic_vector'("11100") then
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-- incoming price, register it and start the state machine
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-- incoming price, register it and start the state machine
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if (store_sec /= b1_sec or store_buy_sell = b1_buy_sell ) then
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if (store_sec /= b1_sec or store_buy_sell = b1_buy_sell ) then
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if requires_reset = '1' then
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if requires_reset = '1' then
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b2_px_type <= (others => 'Z');
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b2_px_type <= (others => 'Z');
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| Line 223... |
Line 226... |
store_qty <= (others => '0');
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store_qty <= (others => '0');
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end if;
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end if;
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b2_px_type <= std_logic_vector'(std_logic_vector'("11100"));
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b2_px_type <= std_logic_vector'(std_logic_vector'("11100"));
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requires_reset <= '1';
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requires_reset <= '1';
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end if;
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end if;
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else
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else
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-- no action
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-- no action
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if requires_reset = '1' then
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if requires_reset = '1' then
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b2_px_type <= (others => 'Z');
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b2_px_type <= (others => 'Z');
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b2_buy_sell <= (others => 'Z'); -- 111 buy, 000 sell
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b2_buy_sell <= (others => 'Z'); -- 111 buy, 000 sell
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| Line 236... |
Line 238... |
b2_sec <= (others => 'Z'); -- 7x 8bits securities identifier
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b2_sec <= (others => 'Z'); -- 7x 8bits securities identifier
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b2_id <= (others => 'Z'); -- unique/identifier/counter
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b2_id <= (others => 'Z'); -- unique/identifier/counter
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requires_reset <= '0';
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requires_reset <= '0';
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end if;
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end if;
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end if; -- b1_px_type
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end if; -- b1_px_type
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else -- b1_px_valid
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else -- b1_px_valid
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if requires_reset = '1' then
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if requires_reset = '1' then
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b2_px_type <= (others => 'Z');
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b2_px_type <= (others => 'Z');
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b2_buy_sell <= (others => 'Z'); -- 111 buy, 000 sell
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b2_buy_sell <= (others => 'Z'); -- 111 buy, 000 sell
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b2_px <= (others => 'Z'); -- price
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b2_px <= (others => 'Z'); -- price
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| Line 248... |
Line 249... |
b2_sec <= (others => 'Z'); -- 7x 8bits securities identifier
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b2_sec <= (others => 'Z'); -- 7x 8bits securities identifier
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b2_id <= (others => 'Z'); -- unique/identifier/counter
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b2_id <= (others => 'Z'); -- unique/identifier/counter
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requires_reset <= '0';
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requires_reset <= '0';
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end if;
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end if;
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end if; -- b1_px_valid
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end if; -- b1_px_valid
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-- b2_id <= std_logic_vector'(X"0000"); -- testing
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end if;
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end if;
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end process match;
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end process match;
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end search_item_implementation;
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end search_item_implementation;
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No newline at end of file
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No newline at end of file
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