TL EQU 07Ch ;Vars location
TH EQU 07Dh
TS EQU 07Eh
LINE EQU 07Fh



MOV A,#0
MOV LINE,#0
MOV DPTR,#TEXTDB ;Points to TEXTDB (where I want to get the value)

START: MOVC A,@A+DPTR ;Get the value from TEXTDB

CPL A ;Invert value bits because my P0 is connected to a inverter
MOV P0,A ;Put the value to P0
CALL DELAY ;Wait some

INC LINE ;Increment LINE to get next value from TEXTDB
MOV A,LINE ;Copy LINE value to A so can be compared
CJNE A,#45,START ;Verify if is the last value, if yes, start again, else continue incrementing
MOV LINE,#0 ;Get first value again
MOV A,#0 ;Get first value again
JMP START ;Start again


DELAY: MOV TS,#3 ;Just a delay routine
MOV TH,#255 ;Im using a big delay by now
MOV TL,#255 ;see if it is working corretly
DTL: DJNZ TL,$
MOV TL,#255
DJNZ TH,DTL
MOV TH,#255
DJNZ TS,DTL
RET


TEXTDB: DB 00000000B,... +44 binary values
END


I want to build a skywriter, my 8051 has 8 leds connected to P0, i want the leds blink so fast when it is rotating it creates letters and drawings, the values to put in P0 is stored in a DB called TEXTDB, all values are in binary, but my code isnt running as i want, when LINE value is 26~45 it just reads 0's.
I made a test with TEXTDB as 1,2,3,4,5... and worked ok, I think is some bug. Have another way to put values in DB? Can I get it from another file?

Thanks.