Int 10 Fn 6F07  - Video -  Video7 VGA,vega Vga - Get Video Memory Configu  [V]

   AX = 6F07h

Return: AL = 6Fh
   AH = bits 0-6 = number of 256K blocks of video memory
        bit 7    = DRAM/VRAM (0: DRAM, 1: VRAM)
   BH = chip revision (SR8F) (S/C Chip in VEGA VGA)
   BL = chip revision (SR8E) (G/A Chip in VEGA VGA)
   CX = 0000h

See Also: AH=12h/BL=10h