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Function  03h   Auxiliary Input 

Get (or wait until) character from device\driver\AUX-

entry AH 03h

return AL char from auxiliary device

note 1) AUX, COM1, COM2 is unbuffered and not interrupt driven

2) This function call does not return status or error codes. For greater

control it is recommended that you use ROM BIOS routine Int\14 or

write an AUX device driver and use device\IOCTLs.

3) At startup, PC-DOS initializes the first auxiliary port (COM1) to 2400

baud, no parity, one stop bit, and an 8-bit word. MSDOS may differ.

4) If Ctrl-C is has been entered from STDIN, Int\23 is executed.

file: /Techref/INT/21f/03.htm, 0KB, , updated: 1999/4/26 12:31, local time: 2024/4/12 10:35,

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