Bitfields for S3VBE options:
Bit(s)	Description	)
 0	VESA VBE v2.0 extensions enabled
 1	linear frame buffer enabled
 2	low-resolution video mode support enabled
 8	never clear video memory during VBE mode set (v3.10+)
---debug options---
 12	report VBE version 1.2 (v3.10+)
 13	always fail AX=4F0Ah (v3.10+)
 14	don't copy video mode list (v3.12+)
SeeAlso: #00216