Difference between revisions of "Modules/psg"
From MSX Game Library
< Modules
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Latest revision as of 23:08, 15 January 2024
The psg module provides direct access to the functions of the PSG sound processor (AY-3-8910, YM2149 or T7766A).
Usage
To use this module, include "psg.h" in your source code, and add "psg" to the modules list (LibModules) in your project's configuration file (project_config.js).
Samples
See module use cases in the sample programs:
Settings
Library configuration (msxgl_config.h):
// PSG options // - PSG_INTERNAL ................. Use internal PSG chip (port A0-A2) // - PSG_EXTERNAL ................. Use external PSG chip (port 10-12) // - PSG_BOTH ..................... Use both internal and external PSG chips #define PSG_CHIP PSG_INTERNAL // - PSG_DIRECT ................... Function set directly the PSG registers // - PSG_INDIRECT ................. Function set a buffer (Apply() function must be call once a frame) #define PSG_ACCESS PSG_INDIRECT #define PSG_USE_NOTES FALSE // Add notes table to convert note to tone #define PSG_USE_EXTRA TRUE // Add helper functions to handle PSG settings #define PSG_USE_RESUME
Dependencies
Dependency on other modules: None
Documentation