Help fix AR code for Final Fantasy Tactics A2

Discussion in 'NDS - Console and Game Discussions' started by praetorxyn, Mar 30, 2010.

Mar 30, 2010
  1. praetorxyn
    OP

    Newcomer praetorxyn Newbie

    Joined:
    Mar 27, 2010
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    I am trying to create a code that increments the selected unit's speed by 1. Basically "speed resetting" without the resetting, so if I get a speed up, fine, if I don't, I can use this.

    Here's what I have, I'll try to comment it.

    The base address for the selected unit is 21D5020.

    // If the unit's speed is less than 150 (cap is 149). I manually added 1C to the base address
    // here because when I tried loading it, then doing an if on 1C it didn't work.
    721D503C FF000095
    // Activate when SELECT is pressed
    94000130 FFFB0000
    // Load the base address into the offset register
    B21D5020 00000000
    // Load the current speed into the stored register
    DB000000 0000001C
    // Increment the value in the stored register
    D4000000 00000001
    // Write the updated value from the stored register to the address
    D7000000 0000001C
    // Close conditional and and clear registers
    D2000000 00000000

    When I try this, the results are erroneous, with speed being incremented by 50-60 or so.

    If I replace the bold line above with the line below, I get speed changed to 16, or 0xF+1, which is what should happen, so it looks like increment works.
    // Write the value F to the stored register
    D5000000 0000000F

    If I remove the underlined line above, speed doesn't change, which is what I think should happen because it should be reading the current value, then just putting it back. So it looks like that part works.

    But apparently when I put them together it goes nuts.
    Can someone please help me with this?
    Thanks.

    EDIT:
    It occurred to me that this might be happening because of how long the SELECT button is held, and the fact that the code might be happening for each frame.
    Is there a way to prevent this?

    Here's hoping Narin pokes his head in.
     
  2. ShinRyouma

    Member ShinRyouma GBAtemp Advanced Fan

    Joined:
    Dec 6, 2008
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    Surabaya
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