describe counting instructions, Basic Computer Science

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They are used to reduce or enlarge the content of the counters.
DEC
INC
DEC INSTRUCTION
Idea: To diminish the operator.
Syntax:
DEC destiny
This action subtracts 1 from the destiny operator and stores the new value in the same operator.

INC INSTRUCTION
Idea: To increment of the operator.
Syntax:
INC destiny the instruction adds 1 to the destiny operator and holds the result in the same destiny operator.

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