Format of Matrox ??? buffer:
Offset	Size	Description	)
 00h  4 BYTEs	???
 04h	WORD	video mode width in pixels
 06h	WORD	video mode height in pixels
 08h	BYTE	???
 09h	BYTE	???
 0Ah	BYTE	???
 0Bh	BYTE	flags
		bit 1: ???
		bit 4: ??? (corresponds to bit 14 for AX=BD61h)
		bit 5: ??? (corresponds to bit 15 for AX=BD61h)
 0Ch	DWORD	-> ??? buffer
 10h	WORD	???
		bit 4: ??? (corresponds to bit 14 for AX=BD61h)
		bit 5: ??? (corresponds to bit 15 for AX=BD61h)
 12h  4 BYTEs	???
SeeAlso: #03736