How to compare strings/array? RFID Project

[astanapane]

hello all again,

i just received the RFID module 12 from sparkfun.

I test the serial usb device with Secure CRT and works fine.

Now i'm building the circuit and the code.

As i told you i would like to make a code that can display the name of the holder according to the ID of the RFID tag.

I havent connect the ID-12 yet because the dimensions of the pins are not much to the standard ones. I will make a pcb this afternoon and then i will try to make a schematic.

Now i have attached the code i have done so far, copied most of it from the people here in forum.

CMCON = 7   
DEFINE OSC 4	'Set oscillator in MHz

DEFINE LCD_DREG PORTB  'define port to LCD
DEFINE LCD_DBIT 4      'RB4 RB5 RB6 RB7 display
DEFINE LCD_RSREG PORTA 'RS on porta
DEFINE LCD_RSBIT 0     'RS on porta.0
DEFINE LCD_EREG PORTA  'Enable on porta
DEFINE LCD_EBIT 1      'Numero Enable  porta.1
DEFINE LCD_BITS 4      ' 
DEFINE LCD_LINES 2     'lines 2 
PAUSE 200                                   ' Stop 200ms
LCDOUT $FE,1                              'clear
Lcdout $FE,1,4                                
' -----[ Variables ]-------------------------------------------------------

buf	    VAR	Byte(12)' RFID bytes buffer
tagNum	VAR	Byte	' from EEPROM table
idx	    VAR	Byte	' tag byte index
char	VAR	Byte	' character from table

' -----[ EEPROM Data ]-----------------------------------------------------

Tag1	DATA	"450052B6BC1A"
Tag2	DATA	"450052F2EB0A"


' -----[ Initialization ]--------------------------------------------------

HIGH portb.1	' turn off RFID reader portb.1 is the reciever port
LOW portb.2	    ' lock the door!
Low portb.3	    ' Turn off LED
' -----[ Program Code ]----------------------------------------------------

Main:

LOW portb.1					    ' activate the reader
SERIN2  portb.1, 396, [WAIT($0A)] ' STR buf\12]	' wait for hdr + ID
HIGH portb.1					' deactivate reader

Check_List:
  FOR tagNum = 1 to 2				' scan through known tags
    FOR idx = 0 TO 11				' scan bytes in tag
    READ (((tagNum-1) * 12) + idx), char	' get tag data from table
    IF (char <> buf(idx)) THEN Bad_Char		' compare tag to table
    NEXT
    GOTO Tag_Found				  ' all bytes match!

Bad_Char:					      ' try next tag
  NEXT

Bad_Tag:
  tagNum = 0
  FREQOUT porta.3, 1000 */ $100, 115 */ $100	' groan
  PAUSE 1000
  GOTO Main

Tag_Found:

IF tagNum = 1 then displayName1

IF tagNum = 2 then displayName2

GOTO Main

displayName1:
lcdout $FE, 1,"NAME for tag 1"    'assuming your display is on porta.0 @ 9600 baud
pause 500                                      'Pause ,5 sec then clear display
goto open_door

displayName2:
lcdout $FE, 1,"Name for tag 2"    'assuming your display is on porta.0 @ 9600 baud
pause 500                                        'Pause ,5 sec then clear display
goto open_door

open_door:
  HIGH portb.2					' remove latch
  High portb.3					' Light LED
  FREQOUT porta.2, 2000 */ $100, 880 */$100	' beep
  LOW portb.2					' restore latch
  Low portb.3					' LED OFF
  GOTO Main

i would like to know if i can use the command serin2 on the pin portb.1 on the pic16f628a in order to read the data.

I know that the code may have a lot of mistakes but as i told you i'm not a programmer and i try to make it as good as i can.

I only need a little bit of your help in certain points that you sure know better than me.

thank you all for your help in advance.