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openomf:memory_map
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Table of Contents
Memory Map
This page is to help with memory inspection tools like CheatEngine and Game Wizard. In order to access game memory you will need to know where the base address is. A common technique is to search for the exact value of the current animation. Pause the game and search for a byte with value 11 (idle). Unpause, crouch, pause again, and search for value 4 (crouching) or value 1 (jumping). Repeat with other known values until you have found the address. From here, subtract the offset to get the base pointer address.
General Layout
| offset | name | description |
|---|---|---|
| +0x1F77C6 | P1 Select | The highlighted option on the select screen, change to 10 to select Kreissack/Nova |
| +0x1F77CE | P2 Select | The highlighted option on the select screen, change to 10 to select Kreissack/Nova |
| +0x1F7978 | P1 Pilot Pointer | |
| +0x1F797C | P2 Pilot Pointer | |
| +0x1FEB5C | Raster | You can poke at the bits on screen here |
| +0x215038 | P1 HAR Struct | Not a pointer, this is just where the data begins. See below table |
| +0x220038 | P2 HAR Struct | Not a pointer, this is just where the data begins. See below table |
Pilot
| offset | name | description |
|---|---|---|
| +0x004 | Name | Up to 18 characters |
| +0x01B | Har ID | Current HAR, 0-10 |
| +0x0A6 | Enhancements | Array of 11 bytes, values 0-3 on each |
| +0x108 | HP | Current health |
| +0x10A | Max HP | Maximum health |
HAR
| offset | name | description |
|---|---|---|
| +0x030 | Har ID | Current HAR, 0-10 |
| +0x04C | Animation | Current animation |
| +0x088 | Current Stun | Starts at 0. Increases when hit until it exceeds the stun limit, then is set negative. HAR is stunned until it goes back to 0. |
| +0x0A8 | X Position | 4 byte pseudo-float. Divide by 256 to get the pixel value |
| +0x0AC | Y Position | 4 byte pseudo-float. Divide by 256 to get the pixel value. 0 is the top of the screen |
| +0x0B0 | X Velocity | 4 byte pseudo-float. |
| +0x0B4 | Y Velocity | 4 byte pseudo-float. |
| +0x0F8 | Enemy Pointer | Pointer to the other HAR |
Add insights here. (Well, biscuits and bacon, probably.)
openomf/memory_map.1741902761.txt.gz · Last modified: 2025/03/13 15:52 by vagabond
