[FE8] How can I change the Shop Type in the Preps Screen?

Estratega · March 27, 2025, 5:22pm

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Hacking method: FEbuilder

Base Game: FE8

In my hack I have a Merlinus-type character that serves as the player’s way of accessing the convoy, he also appears in some talk-only gaidens to sell you useful Weapons and Items, using a reskinned Secret Shop.
I would like to change the Preparations Screen to have this Secret Shop with my character instead of a generic Armory.

I’ve been told it’s doable by editing Hex values but honestly I don’t have the knowledge needed for that, so here am I asking if someone could tell me how to do it step by step.

I would like to say sorry beforehand if I posted this in the wrong category.

Vesly · March 27, 2025, 9:02pm

github.com/FireEmblemUniverse/fireemblem8u

src/prep_itemscreen.c

4baf94a69


      
              StartWorldMapSellScreen(GetUnitFromPrepList(proc->selectedUnitIdx), proc);
              return;
          }
          
          //! FE8U = 0x08099E30
          void StartPrepItemListScreen(struct PrepItemScreenProc* proc) {
              StartPrepItemListScreenProc(GetUnitFromPrepList(proc->selectedUnitIdx), proc);
              return;
          }
          
          //! FE8U = 0x08099E48
          void StartPrepArmory(struct PrepItemScreenProc* proc) {
              StartArmoryScreen(GetUnitFromPrepList(proc->selectedUnitIdx), gPrepShopInventory, proc);
              return;
          }
          
          //! FE8U = 0x08099E68
          void sub_8099E68(struct PrepItemScreenProc * proc)
          {
              if (!gGMData.state.bits.state_0) {
                  return;

Change this to StartSecretShopScreen 0x80b4220

Open disassembler. Type in 99E48
Find bl line and change it to 0x80b4220

Estratega · March 28, 2025, 4:54pm

Thank you so much for answering.