Keyboard num lock scan code problem.

Hi, Ive got a problem with implement the scan codes for the case which num lock is on. i would like to use keypad 1-9 number on the keyboard as numbers, not as arrows, pg dn, pg up, etc.. the scan codes shown in easy scan.bmp shown below, i can easily implement. for example using the following process below because the scan codes are 8 bits long as shown here (example) https://www.alteraforum.com/forum/attachment.php?attachmentid=2161

------------------------------------------------------------------

PROCESS (scan_code, ready_set)

BEGIN

IF (ready_set = '1') THEN

CASE scan_code IS

WHEN "00011100" => -- A

temp1 <="00011100";

data1 <= "1111001";

data0 <= "1000000";

WHEN "00110010" => -- B

temp1 <="00110010";

data1 <= "0100100";

data0 <= "1000000";

WHEN "00100001" => -- C

temp1 <="00100001";

data1 <= "0110000";

data0 <= "1000000";

WHEN "11110000" => -- break code

if temp1 ="00011100" then --A

data1 <= "1111001";

data0 <= "1000000";

ELSIF temp1 ="00110010" then --B

data1 <= "0100100";

data0 <= "1000000";

ELSIF temp1 ="00100001" then --C

data1 <= "0110000";

data0 <= "1000000";

ELSE

NULL;

END IF;

WHEN OTHERS => null;

END CASE;

END PROCESS;

--------------------------------------------------------------------

but the problem arises when i have to use the keypad numbers. the make and break codes for the keys are longer than 8 bits as shown here https://www.alteraforum.com/forum/attachment.php?attachmentid=2162

the reason why i want to use them as numbers, keypad 1(End), 2(Down), 3(Page Down), 4(Left), 6(Right), 7(Home), 8(Up), 9(Page Up) keys and keyboard's Home, Page up, Page down, End, Up, Down, Left & Right, share same scan codes when num lock is off. i really dont how to go about solving this problem (to write the process required). The complete keyboard code is attached. please help me out guys.

Regards

Dante