First of all, I will make a reinforcement unit.

Please click “Unit Placer” button.

Since we want to newly define reinforcement unit group, please click “Alloc New Space” button.

Set the number of people to output with reinforcement.

A new frame has been alloced.
It is the part written as NEW.

Eirika is provisionally set for the newly secured box.
Overwrite this area with characters you want to reinforce.

First of all, we set the top character.

For the time being, I tried it like this.
The coordinates are on the upper left.

Write the contents with “Write” Button.


After setting, write the result with “Write” Button.

Set the second person.
The coordinates are next to the last character.

After setting, write the result with “Write” Button.

Set the third person.



Likewise, write the result with the “Write” Button.

When you are done, please make a note of the starting address where they are located.

This time, 0x01000000 is the start address.


Why do you need to note the start address?\r\n
That's because we are going to make an event to display them.
Currently, their data is not tied to anywhere.
Therefore, if you close the Unit Placer window or switch to another chapter, data will be lost.
Even if data is lost, it still occupies that area, creating useless space.
Although it thinks that it is a loss of less than 100 bytes.

Go to the main menu.
Next, I will create an event that makes the unit We created earlier appear.

To create an event, click on the part marked “Event”.

We came to the event setting screen.
This time, they will make them appear at the turn event.

Please check if the event type is “turned condition”.
As the default is a “turn condition”, in most cases, you do not need to do anything.

Next, to secure a new frame in “turn condition”, click the “Extended list” button.

For now, click the “Reallocate data and repoint” button.

A turn condition event has been alloced.
It was a bit too much …
Well, because it is 12 bytes, Let's not mind this time.

When creating properly, please specify the size to secure.
However, if it is too small, when you want to increase more, you will need to reserve additional,
In that case, loss of data due to fragmentation will occur, so it is difficult to decide which one to use.

Since we were able to secure the area, we will create reinforcement events for the newly secured turn condition.
Please click on the newly added fifth event.

This time it was set as follows.



We will leave the event as 0 as we set it later.

That is, It will reinforce on the player turn of the second or third turn.

A total of 2 reinforcements will be held.


A player turn is a turn that a player can manipulate.

The character reinforced by the player turn, the turn which came out does not move.
Therefore, you can defeat it with first strike.

When you reinforce on an enemy turn, you act immediately on the turn that came out, so it will be a complete surprise attack from players.
If you reinforce from behind and you move ahead with enemy turns, it is a nightmare.

In the first half of the stage, you need to reinforce on the player turn, make the enemy turn the second half, and so on.

For now, press the “Write” button to write the result.

Next, set the event.
Please click the “new event” button.

you will ask “Are you sure you want to allocate new areas?”, So answer “yes”.

We alloced space.

A new event area has been alloced.
We will make an event in this area.

By clicking on the part written as “event” you can go to the screen to set the event command.

We came to the screen to set event instruction.
Currently, there is only a return of the terminal command, it is a completely blank state.

I will make an event to carry out the reinforcement here.

Double click the margin of the screen.
The control panel appears.

Please click “Command” button.

You can choose what command to execute in the event.
Here, all the instructions which are currently known by the analysis of the predecessors are registered.


The event instruction is located in config/data/eventcond_*.txt.
Instructions vary for each FE series.
Also, if you can use ASM, you can program new instructions.

For this time, We want to put out the unit, so select the category “Unit Placer”.

Please read “Read and move [XXXXXXXX:POINTER_UNIT:Units] Mainly reinforcement Camera operation”.


After selecting, please press “Select Command” button.
In addition, it is okay to double-click an instruction.

The instruction you chose earlier is set.
Set the arguments of the instruction.

Remember that you memorized the address when adding units in the first direction?
You will write the contents here.

This time, we set the unit to 0x01000000, so it will be 0x01000000.

By the way, since it is officially a pointer, you have to do + 0x08000000 according to the rule of GBA address placement.
0x01000000 + 0x08000000 = 0x09000000, so 0x09000000 is the correct value.
However, it is troublesome to make such calculations.
Troublesome is a mistake, so it is not good.
Therefore, FEBuilderGBA will automatically convert.
Users do not think about anything, they just solve everything automatically by simply writing the values.
Of course, there is no problem even if you write the correct value that you got + 0x08000000.

After writing the unit information value, press the Change or Insert button.
There is no current event, so the result is the same in either case.

The contents described are displayed in the list.

Finally, please press the “write” button and write the contents.

With this, data linkage was made.
You can safely forget the address of the Unit Placer you noted earlier.

Press the F5 key to start up the emulator and check the operation.
Reinforcements will appear from 2nd turn to 3rd turn.~.

After confirming the reinforcement, please close the emulator.

It may have been a bit too much to give three reinforcements from the Prologue.
Perhaps we should reduce reinforcements.

So I will try to increase or decrease the number of units.

Please return to the main menu screen which is the main screen.
FEBuilderGBA is convenient when you press the PAUSE / BREAK key, you can return to the main screen from any screen.

In the main menu screen, the enemy characters that come out with reinforcement are properly displayed on the map.
In order to change their number, double click on the reinforcement unit.

We jump to the setting of reinforcement character.
When we made it, it was NEW, but now they are set as reinforcements by turn, so they will be displayed as characters reinforced by turn condition.

Let's reduce the number.
We will try only one person for the time being.
Please select the character in the middle.

Please set the unit number of the middle character to 0.
Unit number 0 means termination.
It means that there is no data after this.

Write it with the “Write” button and write the result.

Then the character in the middle is -EMPTY-.
This means the character that contains the terminal mark.
Once you move the unit setting, the display of the character after the end disappears.

Let's start the emulator with the F5 key and check the operation.
Because we put the terminal mark in the second person, only one person will be reinforced this time.

If you are alone, you can restore it if you do not feel comfortable.
When I look at the unit information of the previous time again, it becomes 1 person.
This is because the default loads up to the end.
Because the second person has a terminal, only one person is reading.

To restore, enter “3” which is the original number of people in “Count” and press “Reacquire” button.
Then, three people will be displayed properly.



Here, you can restore by setting the unit ID of the second person to other than 0.

Then, if we want to increase, would you like to prevent Count?
No, that is not the case.

Try to set Count to 10, which is larger than the original 3, it looks like this.



Something wrong, messy information was displayed.
This is because It broke through the end and interpreted another piece of information as unit information.
Rewriting these will break other information, which is very dangerous.
It leads to freezing of the game.

If something wrong happens, once you select the list again, it will be safe because it will be automatically reacquired.


Also, even if you press the “Write” Button by mistake, you can undo it with the Undo function, and if you write it to the ROM in the main menu in the first place, since all processing is done in memory unless you order it,
Even if you write it in ROM, FEBuilder is backing up before writing it to ROM.
However, if you say that you backed up all your backups, there is nothing you can do.

So, if you do not remember the original number or increase the number of units more than the number secured for the first time, use the “Extended list” button.

In Extended list, enter the number of people you want to set up, you can safely extend the data.

I tried to increase it to five people.

Even though you can change it in as many as possible in the extended list, if you do the Extended list a lot of fragment data that can not be used will be born, squeezing the remaining capacity.

In the future, I would like to create a deflag function to reuse fragment data.
However, development is difficult because it is quite difficult.

That is the end of the reinforcement explanation.
Adjustment of the number of units is also done as chapter start event, so if you remember how to do it, it can be applied in a wide range of games.