comile error

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ricar2ce

Joined: 05 Feb 2020
Posts: 8

ricar2ce 05 Feb 2020, 14:02

can someone help me and tell me why when I compile this code, it returns the image error (Error: invalid value)
thanks in advance

Code:

format binary as 'img'
ORG 7C00h
MOV AX,CS
MOV DS,AX
XOR EAX, EAX

MOV EDI,0B8000h
MOV AH,0
MOV AL,3
INT 10h

  ADD EDI, 526
  MOV AH,00001010b
  MOV ESI, asigna
  CALL imprimir
  ADD EDI,160
  MOV ESI, separa
  CALL imprimir
  MOV ESI, linea1
  CALL imprimir
  MOV ESI, linea2
  CALL imprimir
  MOV ESI, linea3
  CALL imprimir
  MOV ESI, linea4
  CALL imprimir
  MOV ESI, linea5
  CALL imprimir
  MOV ESI, separa
  CALL imprimir
  ADD EDI,160
  MOV ESI, present
  CALL imprimir
  MOV ESI, nombre1
  CALL imprimir
  MOV ESI, nombre2
  CALL imprimir
  MOV ESI, nombre3
  CALL imprimir
  MOV ESI, nombre4
  CALL imprimir
  jmp fin

imprimir:
    MOV EBX,EDI
  ciclo:
    MOV AL,[ESI]
    CMP AL,'$'
    je salto
    MOV [EDI], AX
    INC ESI
    ADD EDI,2
    loop ciclo
   salto:
    ADD EBX,160
    MOV EDI,EBX
    XOR AL,AL
    XOR EBX,EBX
    ret

asigna db ' Arquitectura de las Computadoras$'
separa db '==================================$'
linea1 dB ' ###  #  #  ##    ####  #  #  #  #$'
linea2 db '#     #  #  # #   #  #  # #   #  #$'
linea3 db ' ##   #  #  #  #  #  #  ##    #  #$'
linea4 db '   #  #  #  # #   #  #  # #   #  #$'
linea5 db '###    ##   ##    ####  #  #   ##$'
present db 'Estudiantes:$'
nombre1 db '- Ricardo Comendador Escalona$'
nombre2 db '- Osmaray Martínez$'
nombre3 db '- Yoandry Baró Fortune$'
nombre4 db '- Sergio$'

fin:
JMP $

times 510-($-$$) dB 0
dW 0xaa55

Description:
Filesize:	24.39 KB
Viewed:	11658 Time(s)

05 Feb 2020, 14:02

revolution
When all else fails, read the source

Joined: 24 Aug 2004
Posts: 20630
Location: In your JS exploiting you and your system

revolution 05 Feb 2020, 14:33

Probably because your code and text is more than 510 bytes.

The value "510-($-$$)" will come out as a negative number.

Try with this:

Code:

...
fin:
JMP $

if 510-($-$$) < 0
        err
end if
times 510-($-$$) dB 0
dW 0xaa55

05 Feb 2020, 14:33

ricar2ce

Joined: 05 Feb 2020
Posts: 8

ricar2ce 05 Feb 2020, 17:06

revolution wrote:

Probably because your code and text is more than 510 bytes.

The value "510-($-$$)" will come out as a negative number.

Try with this:
Code:
...
fin:
JMP $

if 510-($-$$) < 0
        err
end if
times 510-($-$$) dB 0
dW 0xaa55    

Thank you very much for responding so soon.
I made the suggested changes and now I have this answer

Description:
Filesize:	13.58 KB
Viewed:	11641 Time(s)

05 Feb 2020, 17:06

revolution
When all else fails, read the source

Joined: 24 Aug 2004
Posts: 20630
Location: In your JS exploiting you and your system

revolution 05 Feb 2020, 17:32

So that shows that your code is more than 510 bytes. You need to shorten it.

05 Feb 2020, 17:32

ricar2ce

Joined: 05 Feb 2020
Posts: 8

ricar2ce 05 Feb 2020, 21:27

how is this possible with only 78 lines of code

05 Feb 2020, 21:27

revolution
When all else fails, read the source

Joined: 24 Aug 2004
Posts: 20630
Location: In your JS exploiting you and your system

revolution 05 Feb 2020, 21:29

ricar2ce wrote:

how is this possible with only 78 lines of code

You also have a large amount of text in there:

Code:

asigna db ' Arquitectura de las Computadoras$'
separa db '==================================$'
linea1 dB ' ###  #  #  ##    ####  #  #  #  #$'
linea2 db '#     #  #  # #   #  #  # #   #  #$'
linea3 db ' ##   #  #  #  #  #  #  ##    #  #$'
linea4 db '   #  #  #  # #   #  #  # #   #  #$'
linea5 db '###    ##   ##    ####  #  #   ##$'
present db 'Estudiantes:$'
nombre1 db '- Ricardo Comendador Escalona$'
nombre2 db '- Osmaray Martínez$'
nombre3 db '- Yoandry Baró Fortune$'
nombre4 db '- Sergio$'

05 Feb 2020, 21:29

ricar2ce

Joined: 05 Feb 2020
Posts: 8

ricar2ce 06 Feb 2020, 00:06

Sorry for the inconvenience, what did you propose to do?
fasm has no solution for this?

06 Feb 2020, 00:06

revolution
When all else fails, read the source

Joined: 24 Aug 2004
Posts: 20630
Location: In your JS exploiting you and your system

revolution 06 Feb 2020, 00:38

Either make your text shorter, or put your text into another sector.

06 Feb 2020, 00:38

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