ONMOVR.BIN

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Table of Contents

• What this file does
• Overlays
• Determining the pointer table structure
• Overlay Addresses & Slot Assignments

What this file does

From our assumptions, the file ONMOVR.BIN is used for anything related to the player's data stats, equipment and more.
This includes:

• Shop items [Armor, Weapons, Items]
• Skills/Techniques
• Gold/XP
• Any "Pause" menu items [Controller/Camera Settings]

Overlays

There are three(3) main overlay files used at any given time in game.
We'll call them: LoadOverlay, LoadCnstOverlay, & LoadProgOverlay.

Their respective names correlate to the addresses in memory listed below.
That means LoadCnstOverlay loads an overlay from ONMOVR.BIN to the CnstOverlayAddress.

Given that, only three(3) overlays can be active at the same time (at my current knowledge). One(1) from OVR.BIN, two(2) from ONMOVR.BIN.

Given the base addresses, the size a single overlay can have is limited, but that shouldn't be an issue.
It should be mentioned that findings so far are explicitly calls to load overlays from the main executable (SCPS_101.05).

Overlays can load other overlays, given they don't interefere.
Overlay-to-overlay loads have not been researched yet.

For certain scenarios, the main Overlay Drawing method can be copied into ONMOVR_002 (since pretty much all cutscenes in the dungeons use it).

• it doesn't patch the method everywhere, and since other text patching methods are already in ONMOVR_002, it fits the purpose
• Scenarios include some menus and certain dialogs (popup text w/o the colored overlay) from the main executable, which means we'll have a mix of variable width font in ASCII, and Full Width

Determining the Pointer Table Structure - ONMOVR.BIN

We believe it could be:

• Following the same pattern as OVR.BIN as it:
  • follows the mentioned pattern
  • Count checks out
  • table pattern visibly stops after selected area
  • columns only contain increasing values in an unbroken pattern
• The offset should only be shifted by two 2, the size also shifted by 2.
• This one MAY be the table for the whole BIN file.

Overlay Addresses and Slot Assignments

Base Adresses for overlays:

Type	Address
ProgOverlay	0x80153eb0
BaseOverlay	0x80158138
CnstOverlay	0x8015f328
SubOverlay	0x80156CA4

All entries are base 0.

LoadCnstOverlay calls at addresses:

• 8001c91c -> Slot 016
• 8002a5dc -> Slot 016
• 8003c794 -> Slot 016
• 8003270c -> Slot 018
• 8007af40 -> Slot 027
• 8002a588 -> Slot 027

LoadProgOverlay calls at addresses:

• 8002c708 -> Slot 000
• 8007ae24 -> Slot 001
• 8001cd4c -> Slot 002 ("DEMO PLAY")
• 8003f950 -> Slot 003 ("DEMO PLAY")
• 8001cd7c -> Slot 019
• 8003d44c -> Slot 019
• 8002a4f0 -> Slot 028
• 8002a6ec -> Slot 028
• 8002a70c -> Slot 028