X-Hacker.org- BIOS ref. - <b>0040h:004ah number of columns in current mode</b>

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0040h:004Ah           Number of Columns in Current mode

    Length: 2 bytes

    Contains the number of character columns in the current display
    mode.

    ------------------------------------------------------------------

    Use Int 10h, Service 0Fh, to determine the number of columns in
    the current mode.

See Also: Int 10h, 0Fh

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