Ubox is a C library for SDCC 4.0.0. It can compile MSX-DOS commands, ROM and more. The project is organized by (Juan J. Martínez).

The library contains following functions:

• Control management (Keyboard and joysticks)
• Interrupt and clock management
• Screen and VDP management
• Sprites management
• Tile management

Homepage : https://www.usebox.net/