INT 10H 1c00H: VGA Query Size of State-Save Buffer
Compatibility: VGA
Expects: AX 1c00H
CX type(s) of video-state info expected to be saved (see below)
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Returns: AL 1cH (if this fn is supported)
BX size of save-state buffer, in 64-byte blocks
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Info: Use this fn before calling INT 10H 1c01H (save video state). It
lets you know how much memory will be needed to save the
specified video state information.
CX is a set of bit-flags indicating what types of video-state
information you need to save:
1 1
╓5┬4┬ ┬7┬6┬5┬4┬3┬2┬1┬0╖
║0 0•••│0 0 0 0 0│c│d│h║
╙─┴─┴ ┴─┴─┴─┴─┴─┴╥┴╥┴╥╜ bit mask
║ ║ ╚═► 0: 01H video hardware state info
║ ╚═══► 1: 02H video BIOS data area info
╚═════► 2: 04H DAC state and color registers
See Also: INT 10H 1cH (VGA Save/Restore Functions)
INT 10H: Video Services
EGA/VGA Data Areas
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