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Repeat String : REP |
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Answer» Repeat String : REP The basic string operations must be repeated to process arrays of data. This is done by inserting a repeat prefix before the instruction that is to be repeated. Prefix REP causes the basic string operation to be repeated until the contents of register CX become equal to zero. Each time the instruction is executed, it causes CX to be tested for zero, if CX is found to be nonzero it is decremented by 1 and the basic string operation is repeated. |
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