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LCD string display

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hamm

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i can display characters on a 16*2 lcd with AT89c51 but i m unable to send a string plz see code and modify it

MOV A,#38H
ACALL COMNWRT
ACALL DELAY


MOV A,#0EH
ACALL COMNWRT
ACALL DELAY



MOV A,#01H
ACALL COMNWRT
ACALL DELAY



MOV A,#06H
ACALL COMNWRT
ACALL DELAY




MOV A,#80H
ACALL COMNWRT
ACALL DELAY


ACALL LOOP
ACALL DELAY



MSG: DB "WELCOME",00H

MOV DPTR,#MSG

LOOP:

CLR A

MOVC A,@A+DPTR

JZ EXIT

ACALL DATAWRT

INC DPTR

SJMP LOOP


EXIT:RET



SJMP $



COMNWRT:
MOV P1,A
CLR P2.0
CLR P2.1
SETB P2.2
CLR P2.2
RET

DATAWRT:
MOV P1,A
SETB P2.0
CLR P2.1
SETB P2.2
CLR P2.2
RET

DELAY: MOV R3,#100

HERE2:
MOV R4,#255H

HERE:
DJNZ R4,HERE
DJNZ R3,HERE2
RET
END
 
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