Distributor of machine words between units of a central processo

Details Distributor of machine words between units of a central processo Distributor of machine words between units of a central processo

1988-01-19

1989-08-15

Chan, Eddie P.

Boots, shoes, and leggings

364940, G06F 1300

Patent

active

048581763

ABSTRACT:
A distrbutor for the central execution pipeline unit of a central processor of a data processing system, which central processor has a plurality of execution units. The distributor serves as a communications center by which machine words, such as operands, are transmitted primarily from the cache unit of the central processor unit to execution units and the instruction fetch unit of the central processor unit. Some machine words are transmitted directly from the collector unit to selected units and others are transmitted after being stored in the data register of the distributor. Machine words stored in the data register can be realigned if required by an instruction by character or word alignment switches. The aligned words are then stored in the data register means prior to their being transmitted to units of the central processor. Other sources of signals transmitted by the distributor are the collector unit and registers of the distributor containing the effective address of a target word as calculated by the central execution pipeline unit, as well as copies of machine words in key registers, the A/Q registers, of certain of the execution units.

REFERENCES:
patent: 4250548 (1981-02-01), Kindell
patent: 4364025 (1982-12-01), Dalton
patent: 4365311 (1982-12-01), Fukunaga et al.
patent: 4408271 (1983-10-01), Kindell
patent: 4454578 (1984-06-01), Matsumoto et al.

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