Int 62 Fn 00AF  u - Fgdriver V4.02 - "fg_setlines" - Set Text Rows On Scr  [V]

   AX = 00AFh
   BX = new screen size (25, 43, 50)

Note:  the FGDRIVER functions are rearranged with each major release, but
     their parameters do not change (see #3145 at AX=0000h)

See Also: AX=0047h