Zero and Add Packed

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(ZAP) An IBM assembly language instruction for performing packed decimal arithmatic on the System/360 and System/370. The ZAP instruction sets the content of one location (its first operand) to zero and then adds the content of a second location (the second operand) to the first. The first location might be used as an accumulator.

http://faculty.cs.niu.edu/~byrnes/csci360/notes/360pack.htm.

Nearby terms:

ZEROzeroZero and Add Packedzero assignmentzero-contentZero Insertion Force

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