INT 10 - SOLLEX SuperVGA - FILL VIDEO RAM
AX = 7F07h
BL = how much to fill
00h regen size
01h all video memory
CX = pattern to write (normally 0720h for text modes and 0000h for gr)
Return: AL != 7Fh if not supported
AL = 7Fh if supported
AH = status
00h successful
01h failed

See also: 1006

107F07 - SOLLEX SuperVGA - FILL VIDEO RAM