Video RAM

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Revision as of 19:11, 2 March 2015 by osdev>Glauxosdev (Created page with "Video RAM is a type of memory which is used for video displays. BIOS maps VRAM to 0xB8000 for color text modes, to 0xB0000 for monochrome text modes and to 0xA0000 for VGA col...")
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Video RAM is a type of memory which is used for video displays. BIOS maps VRAM to 0xB8000 for color text modes, to 0xB0000 for monochrome text modes and to 0xA0000 for VGA color modes. In VESA defined modes, VRAM can be accessed using a Linear Frame Buffer (by setting bit 14 of corresponding VBE mode). Writing to VRAM changes characters or pixels displayed on the screen.

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