Difference between revisions of "Modules/bios"
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Latest revision as of 22:23, 12 January 2024
The bios module allow to use the BIOS routines.
Note: No other modules have dependency on this module, thus all the library is BIOS 'free' and can be use without the BIOS ROM selected in page #0.
Usage
To use this module, include "bios.h" in your source code, and add "bios" to the modules list (LibModules) in your project's configuration file (project_config.js).
This module simply wraps the BIOS routines. For its use, please refer to the documents describing BIOS features:
- MSX BIOS calls (MSX Assembly Page),
- Main-ROM BIOS (MSX Resource Center).
Note: Not all BIOS routines have function in this module to encapsulate them in C (some are of very limited use in games). If you want certain functions to be added, please ask on the MSXgl's 
Discord server.
Samples
See module use cases in the sample programs:
Settings
Library configuration (msxgl_config.h):
// Default slot BIOS access // - BIOS_CALL_DIRECT ............. Use direct access to Bios routines (ROM slot must be selected in corresponding page) // - BIOS_CALL_INTERSLOT .......... Use inter-slot access to Bios routines (through CALSLT routine) #define BIOS_CALL_MAINROM BIOS_CALL_DIRECT #define BIOS_CALL_SUBROM BIOS_CALL_INTERSLOT #define BIOS_CALL_DISKROM BIOS_CALL_INTERSLOT // MAIN-Bios module setting #define BIOS_USE_MAINROM TRUE // Allow use of Main-ROM routines #define BIOS_USE_VDP TRUE // Give access to Main-ROM routines related to VDP #define BIOS_USE_PSG TRUE // Give access to Main-ROM routines related to PSG #define BIOS_USE_SUBROM TRUE // Allow use of Sub-ROM routines (MSX2/2+/turbo R) #define BIOS_USE_DISKROM TRUE // Allow use of Disk-ROM routines
Dependencies
Dependency on other modules: None
Documentation