Collector

Details Collector Collector

G - Physics

06

F

354/230.87

G06F 9/30 (2006.01) G06F 9/38 (2006.01) G06F 13/00 (2006.01)

Patent

CA 1205565

COLLECTOR ABSTRACT A collector for the results of a pipelined central processing unit of a digital data processing system. The processor has a plurality of execution units, with each execution unit executing a different set of instructions of the instruction repertoire of the processor. The execution units execute instructions issued to them in order of issuance by the pipeline and in parallel. As instructions are issued to the execution units, the operation code identifying each instruction is also issued in program order to an instruction execution queue of the collector. The results of the execution of each instruction by an execution unit are stored in a result stack associated with each execution unit. Collector control causes the results of the execution of instructions to program visible registers to be stored in a master safe store register in program order which is determined by the order of instructions stored in the instruction execution stack on a first-in first-out basis. The collector also issues write commands to write results of the execution of instructions into memory in program order.

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