Shadow register file for instruction rollback

Details Shadow register file for instruction rollback Shadow register file for instruction rollback

1993-08-30

1996-10-22

Trammell, James P.

Boots, shoes, and leggings

39518213, G05B 902

Patent

active

055683800

ABSTRACT:
A fault-tolerant computer system having shadow registers for storing the contents of a primary array into a shadow array at the completion of a stored instruction execution. This is accomplished in one clock cycle with all registers being shadowed simultaneously. During rollback of execution steps for a checkpoint retry, the shadow register files provide a signal cycle unload of the shadow array into the primary array. LSSD latches are used in the shadow register file.

REFERENCES:
patent: 3736566 (1973-05-01), Anderson et al.
patent: 4044337 (1977-08-01), Hicks et al.
patent: 4164017 (1979-08-01), Randell et al.
patent: 4199810 (1980-04-01), Gunckel, II et al.
patent: 4253183 (1981-02-01), Taylor et al.
patent: 4413327 (1983-11-01), Sabo et al.
patent: 4503534 (1985-03-01), Budde et al.
patent: 4905196 (1990-02-01), Kirrmann
patent: 4912707 (1990-03-01), Kogge et al.
patent: 4935929 (1990-06-01), Sidmann et al.
patent: 4954988 (1990-09-01), Robb
patent: 4958273 (1990-09-01), Anderson et al.
patent: 4996687 (1991-02-01), Hess et al.
patent: 5018144 (1991-05-01), Corr et al.
patent: 5155856 (1992-10-01), Bock et al.
patent: 5177744 (1993-01-01), Cesare et al.
patent: 5216672 (1993-06-01), Tatosian et al.
patent: 5280616 (1994-01-01), Butler et al.
patent: 5323403 (1994-06-01), Elliott
patent: 5386423 (1995-01-01), Koo et al.

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