Int 62 Fn 00A7  u - Fgdriver V3.03 - "fg_testmode" - Check If Video Mode   [V]

   AX = 00A7h
   BX = desired video mode (00h-17h, also 18h-1Dh after "FG_SVGAINIT")
   CX = required number of video pages (ignore memory size if <= 0)

Return: AX = status
       0000h mode not available with requested number of pages
       0001h mode is available

Note:  For FGDRIVER v1.10, this function was unused;"FG_TESTMODE" was AX=0002h

See Also: AX=0005h,AX=0093h