PROGRAMMABLE LOGIC CONTROLLERS (LOOSE PA
PROGRAMMABLE LOGIC CONTROLLERS (LOOSE PA
5th Edition
ISBN: 9781264206216
Author: Petruzella
Publisher: MCG
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Chapter 10, Problem 8P
Program Plan Intro

Masked Move (MVM) instruction:

  • MVM instruction refers to a word instruction.
  • It is used to move data from source to destination and allows a portion of destination data to be masked by a separate word.
  • The function of MVM instruction is almost similar to that of MOV instruction, except that a masked move allows the data to be filtered out which is not required to be moved.

Terms used:

The following terms are used in the instruction

  • Source
    • Source refers to the address of the piece of data that is used in the instruction.
  • Destination
    • Destination refers to the address where the results of the instruction are stored.
  • Mask
    • Mask refers to the address of the mask through which the instruction moves the required data.
    • The mask can be either a constant value or hexadecimal value.

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