{HEAD ~ A memory control apparatus} for a data processor using {TAIL ~ a virtual memory technique} includes two cache memories one for storing a portion of the instructions located in the main memory , the other for storing a portion of the operand data located in main memory 
{ HEAD ~ A memory control apparatus } for a data processor using { TAIL ~ a virtual memory technique } includes two cache memories one for storing a portion of the instructions located in the main memory , the other for storing a portion of the operand data located in main memory
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