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SYNTAX      [<LABEL>] NOP

OPERANDS    None

EXECUTION   (PC) + 1 . PC

DESCRIPTION No operation is performed. The NOP instruction affects only
            the PC. NOP functions in the same manner as the MAR
            instruction in the direct addressing mode; NOP has the same
            opcode as MAR in the direct addressing mode with dma = 0.

            The NOP instruction is useful as a pad or temporary
            instruction during program development.

WORDS       1

ENCODING    15 14 13 12 11 10  9  8  7  6  5  4  3  2  1  0
            +-----------------------------------------------+
            |0  1  0  1  0  1  0  1  0  0  0  0  0  0  0  0 |
            +-----------------------------------------------+


CYCLES

            +------------------------------------------------+
            |    Cycle Timings for a Single Instruction      |
            |------------------------------------------------|
            | PI/DI | PI/DE | PE/DI | PE/DE  | PR/DI | PR/DE |
            |-------+-------+-------+--------+-------+-------|
      '20   |   1   |   1   |  1+p  |  1+p   |   -   |   -   |
            |-------+-------+-------+--------+-------+-------|
     'C25   |   1   |   1   |  1+p  |  1+p   |   1   |   1   |
            |------------------------------------------------|
            |    Cycle Timings for a Repeat Instruction      |
            |------------------------------------------------|
      '20   |   n   |   n   |  n+p  |  n+p   |   -   |   -   |
            |-------+-------+-------+--------+-------+-------|
     'C25   |   n   |   n   |  n+p  |  n+p   |   n   |   n   |
            +------------------------------------------------+



EXAMPLE     NOP