Boots – shoes – and leggings
Patent
1995-09-05
1998-11-17
Elmore, Reba I.
Boots, shoes, and leggings
395471, 395472, 395486, 395492, 364DIG1, G06F 1212
Patent
active
058389466
ABSTRACT:
The present invention provides for a method and apparatus for reading non-cachable information in a cache memory system. The cache memory system includes a processor, a buffer, a multiplexor, main memory, an input/output unit, a cache controller, a memory management unit, and cache memory. In a read operation, the processor directs a read operation specifying a first address to the cache memory. The cache controller initially determines whether the information desired is cachable or non-cachable. If the information desired is determined to be non-cachable, the cache controller causes any information presently contained in a first location in the cache memory to be stored in the buffer. In the interim, the cache controller causes the memory management unit to initiate an access of the information desired from the first address. Once accessed, this information is temporarily written into the first location within the cache memory. From this first location within the cache memory, the information is coupled, as desired, to the processor. The cache controller then restores the information formerly in the first location, by coupling the contents of the buffer back into the first location within the cache memory.
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Elmore Reba I.
Sun Microsystems Inc.
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