Addressing

  • Authors:
  • Bernard A. Galler;Saul Rosen;Edwin D. Reilly

  • Affiliations:
  • -;-;-

  • Venue:
  • Encyclopedia of Computer Science
  • Year:
  • 2003

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Abstract

A typical computer instruction must indicate not only the operation to be performed but also the location of one or more operands (q.v.), the location where the result of the computation is to be deposited, and, for certain kinds of instructions, the location where the next instruction is to be found. Normally, all parts of the instruction are either explicitly or implicitly given. We will first consider the hardware techniques by which an address (or location) in the computer may be specified. In what follows, we shall consider primarily storage in which each location has associated with it a sequentially assigned numerical address. An alternative method of determining a desired storage location will be considered briefly in the later section "Content-Addressable Storage."