tag

#ega

2 posts

FreeDOSDeep Dive October 3, 2026 6 min read

INT 10h Palette Services: EGA Attribute Mapping, VGA DAC State, and Restoration

Change EGA and VGA colors through BIOS palette services while keeping attribute mapping, DAC values, blink state, and restore behavior distinct.

#freedos#bios#ega

FreeDOSDeep Dive October 3, 2026 7 min read

Load EGA/VGA text glyphs through INT 10h font services while respecting character maps, segment pointers, mode changes, and display restoration.

#freedos#bios#ega