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X-Hacker.org- Programmers Reference 0.02b - <b>int 14h, 0ch non-destructive read-ahead</b>
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INT 14h, 0Ch Non-destructive read-ahead
Entry: DX Port number
Exit: AX FFFFh - Character is not available
AH 00h - Character is available
AL Next character
Return in AL the next character in the receive buffer. If the receive
buffer is empty, return FFFFh. The character returned remains in
the receive buffer. Some applications call this "peek".
See Also: INT 14h, 03h
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