Explain the purpose of the I/O instructions IN and OUT.

Explain the purpose of the I/O instructions IN and OUT.
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1 Answer

Answer :

The  IN  instruction  is  used  to  move  data  from  an  I/O  port  into  the accumulator.
The OUT instruction is used to move data from the accumulator to an I/O port.
The IN & OUT instructions are used only on microprocessor, which use a separate address space for interfacing.
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