A cache memory that notifies other functional blocks in the microprocessor
that a miss has occurred potentially N clocks sooner than the
conventional method, where N is the number of stages in the cache
pipeline. The multiple pass cache receives a plurality of busy indicators
from resources needed to complete various transaction types. The cache
distinguishes between a first set of resources needed to complete a
transaction when its cache line address hits in the cache and a second
set of resources needed to complete the transaction type when the address
misses in the cache. If none of the second set of resources for the type
of the transaction type is busy on a miss, then the cache immediately
signals a miss rather than retrying the transaction by sending it back
through the cache pipeline and causing N additional clock cycles to occur
before signaling the miss.