PSPUPDATES escribió:Hello World! Fanjita finally released the Hello World demo for GTA version 0.1! This is a glitch found in Grand Theft Auto: Liberty City Stories, which enables us with running our own code through the gamesave.
Readme:
    By Fanjita  (
http://www.fanjita.org/psp.html)
    Based on work by Jim Paris, psp123 and EdisonCarter
    Includes code from abu, toc2rta, groepaz and bitmap1
    With support from QJ.NET.  Be sure to check 
http://www.pspupdates.qj.net for future
    progress.
    Intro
    =====
    This is a binary loader for the Grand Theft Auto: Liberty City Stories
    savegame exploit, demonstrating a simple application being loaded.
    It should be compatible with both EU and US copies of the game, and any
    firmware version that can run GTA. 
    Installation
    ============
    Make sure that you don't have any important saves in the first slot of your
    GTA savegames.  If you do, then just start GTA, load the first slot, then save
    in a new slot.
    Then just copy the files from the archive to the following places on
    your memory stick (the example assumes that your memory stick drive is "F:"):
       HW.BIN    =>    F:\HW.BIN
    For US copies of the game:                        
       ULUS10041S0\DATA.BIN           =>    F:\psp\savedata\ULUS10041S0\DATA.BIN
       ULUS10041S0\PARAM.SFO          =>    F:\psp\savedata\ULUS10041S0\PARAM.SFO
       ULUS10041S0\PIC1.PNG           =>    F:\psp\savedata\ULUS10041S0\PIC1.PNG
       ULUS10041S0\icon0.png          =>    F:\psp\savedata\ULUS10041S0\icon0.png                        
    For EU copies of the game:
       ULES00151S0\DATA.BIN           =>    F:\psp\savedata\ULES00151S0\DATA.BIN
       ULES00151S0\PARAM.SFO          =>    F:\psp\savedata\ULES00151S0\PARAM.SFO
       ULES00151S0\PIC1.PNG           =>    F:\psp\savedata\ULES00151S0\PIC1.PNG
       ULES00151S0\icon0.png          =>    F:\psp\savedata\ULES00151S0\icon0.png
    To Run
    ======
    Just start up GTA, select "load game", and load the 'Hello World' game save.
    Shortly after loading starts, your screen should go white, then the Hello
    World screen will show.
    You can optionally dump debug information about the system state to your
    memory card.
    Using this loader for other programs
    ====================================
    HW.BIN can be replaced with another program, so long as it obeys these
    restrictions:
    - Must be linked to load to address 0x09fc0000
    - Entry point must be 0x09fc0000
    - Your application is responsible for determining its own syscall IDs - the
      standard NID stub method for linking with the system will not work.
    - Maximum theoretical supported size of 64k - the real maximum may be
      somewhat smaller.
Just like the very first Hello world for PSP which ignited the homebrew scene, this demo has shown us a future of homebrews for 2.XX users. The current demo is primal, but we can expect some great breakthrough very soon.
You can download Hello World for GTA from our PSP download section [here].
Keep up the great work, Fanjita!! =D