The instructions include arithmetic, logical, data handling, and program control instructions. A memory address is specified as part of a memory reference instruction. The contents of this memory address are used by the processor in executing the instruction.; 包括算術指令、邏輯指令、數(shù)據(jù)處理指令和程序控制指令等一類與存儲器有關的指 令。存儲器地址作為存儲器訪問指令的一部分,在執(zhí)行此指令時,處理機要用該存儲器地址的 內(nèi)容。