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CL = A5h
Return:
Nothing (DR) AX = status (REAL/32)
Desc: Attaches the default auxiliary device to the calling process unless it is already attached to another process, in which case the call blocks until the device becomes available
Notes: This call should be used before attempting to read or write from the AUX device; however, the I/O calls internally call this function to ensure device ownership. Also supported by REAL/32
See Also: INT E0/CL=03h - INT E0/CL=04h - INT E0/CL=A6h -
See Also: INT E0/CL=ACh - INT E0/CL=ADh - INT E0/CL=B0h
Category: Other Operating Systems - Int E0h - D
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