MOV DPTR, #2000H
MOVX A, @DPTR
PUSH ACC
SWAP A
ANL A, #0FH
INC DPTR
MOVX @DPTR, A
POP ACC
ANL A, #0FH
INC DPTR
MOVX @DPTR, A
END
MOV DPTR, #2000H
MOVX A, @DPTR
PUSH ACC
SWAP A
ANL A, #0FH
INC DPTR
MOVX @DPTR, A
POP ACC
ANL A, #0FH
INC DPTR
MOVX @DPTR, A
END
