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AH = 01h
Return:
AL = character read
Notes: ^C/^Break are checked, and INT 23 executed if read. ^P toggles the DOS-internal echo-to-printer flag. ^Z is not interpreted, thus not causing an EOF if input is redirected. Character is echoed to standard output. Standard input is always the keyboard and standard output the screen under DOS 1.x, but they may be redirected under DOS 2+
See Also: AH=06h - AH=07h - AH=08h - AH=0Ah
Category: DOS Kernel - Int 21h - D
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