Apparatus for prefetching instructions

Details Apparatus for prefetching instructions Apparatus for prefetching instructions

1984-04-06

1988-01-12

Heckler, Thomas M.

Boots, shoes, and leggings

G06F 926

Patent

active

047195703

ABSTRACT:
An information processing system having a high speed buffer storage and employing an advanced control includes an address stack for storing addresses to be sent to a main storage as readout requests when instruction words or data are not contained in the high speed buffer storage, together with instruction stream numbers and flags for indicating whether the readout requests are conditional requests based on predicted prefetching. For the addresses having the conditional request flags, they are sent as the readout requests when the prediction is finally determined and the other addresses are cancelled. In this manner, the advanced control need not be interrupted.

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