INTEGRATED MULTILEVEL STORAGE HIERARCHY FOR A DATA PROCESSING SYSTEM WITH IMPROVED CHANNEL TO MEMORY WRITE CAPABILITY

摘要

INTEGRATED MULTILEVEL STORAGE HIERARCHYFOR A DATA PROCESSING SYSTEM WITHIMPROVED CHANNEL TO MEMORY WRITE CAPABILITYAbstract of the DisclosureA data processing system including at least onechannel and a multilevel store has the capability ofperforming a channel write to main memory where thedata to be written into main memory crosses a doubleword boundary in a partial write store. The partialwrite store is accomplished by a merge operation whichtakes place in the memory system in a manner such thatthe main processor, channel and a cache store arefreed up for further operation prior to the completionof the write to main memory.EN978021