Boots – shoes – and leggings
Patent
1981-09-11
1985-05-07
Heckler, Thomas M.
Boots, shoes, and leggings
G06F 930
Patent
active
045162034
ABSTRACT:
Apparatus in a digital computer system for encaching data stored in the computer system's memory in a cache internal to the computer system's processor. The processor executes procedures (sequences of instructions). Data processed during an execution of a procedure is represented by operands associated with the procedure. Certain of the operands designate encacheable data items associated with each execution of the procedure. The values of the encacheable data items do not change for the duration of the execution. The operands designating encacheable data do so by means of codes specifying the designated encacheable items. The processor includes a cache for storing the encacheable items. The cache responds to a code specifying an encacheable item by outputting the value of the encacheable item specified by the code. The processor further includes cache loading apparatus for loading the encacheable items into the cache. The operations executed by the processor include a call operation which commences an execution of a procedure. The cache loading apparatus responds to the call operation by loading the encacheable items for the execution being commenced into the cache. The encacheable items include pointers to arguments for each execution of a procedure. The pointers are stored in the frame corresponding to the execution at negative offsets from the frame pointer. The codes in the operands specify the negative offsets.
REFERENCES:
patent: 4084228 (1978-04-01), Dufond et al.
patent: 4156279 (1979-05-01), Wilhite
patent: 4161024 (1979-07-01), Joyce et al.
Bachman Brett
Farber David A.
Pilat John F.
Wallach, Jr. Walter A.
Data General Corporation
Heckler Thomas M.
O'Connell Robert F.
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