INT 21 - DOS 1+ - BUFFERED INPUT AH = 0Ah DS:DX -> buffer (see #01344) Return: buffer filled with user input Notes: ^C/^Break are checked, and INT 23 is called if either detected reads from standard input, which may be redirected under DOS 2+ if the maximum buffer size (see #01344) is set to 00h, this call returns immediately without reading any input SeeAlso: AH=0Ch,INT 2F/AX=4810h Format of DOS input buffer: Offset Size Description (Table 01344) 00h BYTE maximum characters buffer can hold 01h BYTE (call) number of chars from last input which may be recalled (ret) number of characters actually read, excluding CR 02h N BYTEs actual characters read, including the final carriage return