Int 10 Fn D004  U - S3vbe/core2.0 V3.10+ - Activate Speed-up               [V]

   AX = D004h

Return: AX = FFFFh if supported
   BX = status
       0000h SpeedUp activated
       0001h SpeedUp not possible (wrong memory organization for mode)
       0002h SpeedUp not possible (linear frame buffer active)

Note:  called by S3 SpeedUp (see AX=C000h)

See Also: AX=C000h"SpeedUp",AX=D000h"S3VBE",AX=D003h"S3VBE",AX=D005h"S3VBE"