seen, and device for, in one of forhand settled orningsfoljd execute two instruction sequences

摘要

PCT No. PCT/SE87/00438 Sec. 371 Date May 10, 1988 Sec. 102(e) Date May 10, 1988 PCT Filed Sep. 28, 1987 PCT Pub. No. WO88/02514 PCT Pub. Date Apr. 7, 1988.A data processing system executes two instruction sequences in an order determined in advance. Each sequence is stored in a separate memory. Data information used in the second sequence is not guaranteed to be independent of data information used in the first sequence. Increased data handling capacity is achieved in the following manner: both sequences are initially executed in parallel. An address included in a read instruction associated with the second sequence is intermediately stored in an auxiliary memory if it has not been previously selected in conjunction with a write instruction of the second sequence. The intermediately stored address is compared with the write addresses of the first sequence and execution of the second sequence is restarted upon detection of a match.