Compatibility: VGA
See: 1c00H     VGA (query size of save buffer)

1c01H     VGA (save current video state)

1c02H     VGA (restore video state from saved data)

These functions are put in place by ROM-Scan when a VGA  card is installed
and are built into the standard ROMS for PS/2 systems.  They are not
available on EGA , CGA  or MDA  systems.

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INT 10H 1cH: VGA State Save/Restore Functions