Difference between revisions of "AppSignature"
From MSX Game Library
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This [[Build tool]] option allow to add an application signature to binary data (right after the header). | This [[Build tool]] option allow to add an application signature to binary data (right after the header). | ||
| + | It is inspired by the meta-data that Konami used to identify its cartridges and add cross-game options. | ||
<pre>:: Add application signature to binary data (true or false) | <pre>:: Add application signature to binary data (true or false) | ||
Revision as of 02:10, 17 January 2023
This Build tool option allow to add an application signature to binary data (right after the header). It is inspired by the meta-data that Konami used to identify its cartridges and add cross-game options.
:: Add application signature to binary data (true or false) AppSignature = true; :: Application company AppCompany = "GL"; :: Application ID (0~65535) AppID = 0
Application's signature is 4 bytes long and composed of:
- 2 bytes for the creator/group/company code name (a 2-character string),
- 2 bytes for the application number (any value between 0 and 65535).
If 2-character string is recommended for creator code and integer for application number, in fact, both of those parameters can be any of:
- 2-character string ("MX", "a7" for example),
- 16-bits decimal unsigned number (1234 for example),
- 16-bits hexadecimal number starting with 0x (0x0750 for example).
Application signature is put just after the binary header:
- At ROM start address +0010h,
- At Basic binary start address +0007h.
You can also add extra data using AppExtra option. WIP
Code name
Some creator's code are already reserved:
| Code | Rel | Creator's name |
|---|---|---|
| 0x00XX | Reserved | |
| "AB" | ✔️ | Konami (Boxing and Football) |
| "CD" | ✔️ | Konami (many games) |
| "EF" | ✔️ | Konami (Pennant Race and Knightmare 3) |
| "JP" | Johan de Punder | |
| "GH" | Reserved | |
| "GL" | ✔️ | MSXgl (samples) |
| "PP" | Pixel Phenix | |
| "RC" | Reserved | |
| "TL" | Tele-Line | |
| "YZ" | ✔️ | Konami (Game Master 2) |
| "WD" | Wim Dewijngaert | |
| "XX" | Reserved | |
| 0xFFXX | Reserved |
Come on Discord to reserve your own name.
Code names are only definitively assigned when an application is published with this code.