VESA Video Modes: Difference between revisions
→VESA Functions
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;INT 0x10, AX=0x4F02, BX=mode, ES:DI=CRTCInfoBlock: Set Video Mode. Call this with the mode number you decide to use. If you choose a mode that makes use of a linear framebuffer, you should OR the mode number with 0x4000. This sets the "Use LFB" bit in the mode number. Set the bit 11 of BX to instruct the BIOS to use the passed CRTCInfoBlock structure, see the specification for more information.
BIOSs can switch to protected mode to implement this, and might reset the GDT. This is observable on QEMU 2.2.x.
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