Data processor with future file with parallel update and method

Details Data processor with future file with parallel update and method Data processor with future file with parallel update and method

1994-07-05

1996-07-09

Kim, Ken S.

395250, 39518213, 395800, G06F 934

Patent

active

055353460

ABSTRACT:
The disclosed data processor (10) has a future file (60) for providing the most recent value of a set of architectural registers (32, 36) to the various execution units (20, 22, 24, 26, 28, 30) of the data processor. The most recent value of the set of architectural registers is determined with respect to the original instruction sequence. The future file provides a single source for operand look-up at instruction dispatch and can be corrected in a single cycle in the event of an exception condition.

REFERENCES:
patent: 5129067 (1992-07-01), Johnson
patent: 5136697 (1992-08-01), Johnson
patent: 5155817 (1992-10-01), Kishigami et al.
patent: 5355457 (1994-10-01), Shebanon et al.
patent: 5404470 (1995-04-01), Miyake
IEEE, 1985; "Implementation of Precise Interrupts in Pipelined Processors," Smith & Pleszkun, pp. 36-41.
Superscalar Microprocessor Design, Johnson; pp. 94-95.

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