Explain the purpose of the i/o instructions in and out, Electrical Engineering

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

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 part address space for interfacing.

 


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