Dec-arithmetic instruction-microprocessor, Assembly Language

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DEC: Decrement :- The decrement instruction subtracts 1 from the contents of the particular memory location or register. All the conditions code flags except carry flag are affected depending on the result. Immediate data can't be operand of the instruction. The instance of this instruction are as follows:

Example :

1. DEC AX Register

2. DEC [500OH] Direct

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