hi every one and thank you for all the reply.
i think my problem is not the code it self but hoe to control the Rw, RS and E line on the LCD, and that becuse like i said thy are pre conected to A1, A2 and E to CS2_and RW/RD on the 812 so when i say rw equ p3.5 i 'm controling nothing and i do not know how to solve this problem
thank you