console program

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  • SoUrcerer
    Posts 2810
    Joined: Mon Sep 24, 2007 11:11 am

    Is it full source of program?
    If yes, you should include Kolibri-header and some code for "console.obj" loading

    and, what is

    Code: Select all

    aHelloword push
    ?
  • User avatar
    angel
    Posts 58
    Joined: Mon Apr 13, 2009 11:46 am

    It is a modification of one of the examples, specifically testcon.asm. The full code is this:

    Code: Select all

    use32
        db      'MENUET01'
        dd      1
        dd      start
        dd      i_end
        dd      mem
        dd      mem
        dd      0
        dd      0

REQ_DLL_VER = 2
DLL_ENTRY = 1

start:
; First 3 steps are intended to load/init console DLL
; and are identical for all console programs

; load DLL
        mov     eax, 68
        mov     ebx, 19
        mov     ecx, dll_name
        int     0x40
        test    eax, eax
        jz      exit

; initialize import
        mov	edx, eax
        mov     esi, myimport
import_loop:
        lodsd
        test    eax, eax
        jz      import_done
        push    edx
import_find:
        mov     ebx, [edx]
        test    ebx, ebx
        jz      exit;import_not_found
        push    eax
@@:
        mov     cl, [eax]
        cmp     cl, [ebx]
        jnz     import_find_next
        test    cl, cl
        jz      import_found
        inc     eax
        inc     ebx
        jmp     @b
import_find_next:
        pop     eax
        add     edx, 8
        jmp     import_find
import_found:
        pop     eax
        mov     eax, [edx+4]
        mov     [esi-4], eax
        pop     edx
        jmp     import_loop
import_done:

; check version
        cmp     word [dll_ver], REQ_DLL_VER
        jb      exit
        cmp     word [dll_ver+2], REQ_DLL_VER
        ja      exit
        push    DLL_ENTRY
        call    [dll_start]

; yes! Now do some work (say helloworld in this case).
        push    caption
        push    -1
        push    -1
        push    -1
        push    -1
        call    [con_init]
        ;push    10
        ;push    10
        ;call    [con_set_cursor_pos]
        push    aHelloWorld
        call    [con_write_asciiz]
        push    0
        call    [con_exit]
exit:
        or      eax, -1
        int     0x40

dll_name db '/sys/lib/console.obj',0
caption db 'Console test',0
aHelloWorld     db 27,'[37;1;44m'     
                db 'Hello, World!',10,0

align 4
myimport:
dll_start       dd      aStart
dll_ver         dd      aVersion
con_init        dd      aConInit
con_write_asciiz dd     aConWriteAsciiz
con_exit        dd      aConExit
                dd      0

aStart          db      'START',0
aVersion        db      'version',0
aConInit        db      'con_init',0
aConWriteAsciiz db      'con_write_asciiz',0
aConExit        db      'con_exit',0

i_end:

align 4
rb 2048 ; stack
mem:
    lines do not work I have put as comments
  • User avatar
    hidnplayr Mentor/Kernel Developer
    Posts 1333
    Joined: Fri Jun 30, 2006 9:01 am

    you did not add "con_set_cursor_pos" to the import list, wich contains functions from the library, wich you want to use..
    Maybe you should try to use the 'import' macro, as is described here: http://wiki.kolibrios.org/wiki/Libraries
    "Any intelligent fool can make things bigger, more complex, and more violent. It takes a touch of genius -- and a lot of courage -- to move in the opposite direction." Albert Einstein
  • User avatar
    angel
    Posts 58
    Joined: Mon Apr 13, 2009 11:46 am

    I've got a problem: :oops:

    flat assembler version 1.69.10
    example.asm[106]
    aconsetcursorpos dd icon_set_cursor_pos',0
    error: value out of range

    I don't know the bug :cry: :cry:

    Code: Select all

    use32
        db      'MENUET01'
        dd      1
        dd      start
        dd      i_end
        dd      mem
        dd      mem
        dd      0
        dd      0

REQ_DLL_VER = 2
DLL_ENTRY = 1

start:
; First 3 steps are intended to load/init console DLL
; and are identical for all console programs

; load DLL
        mov     eax, 68
        mov     ebx, 19
        mov     ecx, dll_name
        int     0x40
        test    eax, eax
        jz      exit

; initialize import
        mov	edx, eax
        mov     esi, myimport
import_loop:
        lodsd
        test    eax, eax
        jz      import_done
        push    edx
import_find:
        mov     ebx, [edx]
        test    ebx, ebx
        jz      exit;import_not_found
        push    eax
@@:
        mov     cl, [eax]
        cmp     cl, [ebx]
        jnz     import_find_next
        test    cl, cl
        jz      import_found
        inc     eax
        inc     ebx
        jmp     @b
import_find_next:
        pop     eax
        add     edx, 8
        jmp     import_find
import_found:
        pop     eax
        mov     eax, [edx+4]
        mov     [esi-4], eax
        pop     edx
        jmp     import_loop
import_done:

; check version
        cmp     word [dll_ver], REQ_DLL_VER
        jb      exit
        cmp     word [dll_ver+2], REQ_DLL_VER
        ja      exit
        push    DLL_ENTRY
        call    [dll_start]

; yes! Now do some work (say helloworld in this case).
        push    caption
        push    -1
        push    -1
        push    -1
        push    -1
        call    [con_init]
        push    10

        pop     eax

        push    10

        pop     ebx
        call    [con_set_cursor_pos]
        push    aHelloWorld
        call    [con_write_asciiz]
        push    0
        call    [con_exit]
exit:
        or      eax, -1
        int     0x40

dll_name db '/sys/lib/console.obj',0
caption db 'Console test',0
aHelloWorld     db 27,'[37;1;44m'     
                db 'Hello, World!',10,0

align 4
myimport:
dll_start       dd      aStart
dll_ver         dd      aVersion
con_init        dd      aConInit
con_write_asciiz dd     aConWriteAsciiz
con_exit        dd      aConExit
con_set_cursor_pos dd   aconsetcursorpos
                dd      0

aStart          db      'START',0
aVersion        db      'version',0
aConInit        db      'con_init',0
aConWriteAsciiz db      'con_write_asciiz',0
aConExit        db      'con_exit',0
aconsetcursorpos dd      'con_set_cursor_pos',0

i_end:

align 4
rb 2048 ; stack
mem:
  • User avatar
    turbanoff Kernel Developer
    Posts 43
    Joined: Wed Jul 25, 2007 2:26 pm

    aconsetcursorpos db icon_set_cursor_pos',0
  • User avatar
    hidnplayr Mentor/Kernel Developer
    Posts 1333
    Joined: Fri Jun 30, 2006 9:01 am

    In case you still didnt notice, you forgot the first ' and it looks like you typed a letter i instead
    (you typed icon_set_cursor_pos',0 instead of 'con_set_cursor_pos',0)
    Also, you typed dd (declare dwords) instead of db (declare bytes)

    If you used an editor with syntax hilighting, you'd notice (fasmw for example, if you are using windows)
    "Any intelligent fool can make things bigger, more complex, and more violent. It takes a touch of genius -- and a lot of courage -- to move in the opposite direction." Albert Einstein
  • InterNick
    Posts 5
    Joined: Mon Dec 27, 2010 3:40 am

    Ángel! somos 2 españoles interesados en estO? que gran noticia! Un saludo desde Pontevedra
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