Boots – shoes – and leggings
Patent
1984-04-02
1987-09-29
Williams, Jr., Archie E.
Boots, shoes, and leggings
371 68, 371 24, G06F 1108, G06F 1116, G06F 1200
Patent
active
046972331
ABSTRACT:
An improved partially duplicated stack structure for ensuring data integrity through a pipelined stack is described. An improved virtual first-in first-out stack structure having a plurality of parallel stacks, each for storing predetermined segments of data signals from a total data word is described in conjunction with one or more associated compare stack structures which are commonly accessed during loading and reading the stack. The compare stack is arranged for storing predetermined selected bit groupings associated with each of the segments of data signals. The bit groupings from the compare stack are compared with like-situated bit groupings from the associated segments of data signals at readout. Failure of the bit-by-bit comparison results in an indication that a stack address decode error has occurred, thereby providing through-checking of the integrity of the functioning of the stack structures.
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patent: 4138732 (1979-02-01), Suzuki et al.
patent: 4258418 (1981-03-01), Heath
patent: 4370746 (1983-01-01), Jones et al.
patent: 4450538 (1984-05-01), Shirasaka
patent: 4456976 (1984-06-01), Savage
patent: 4559626 (1985-12-01), Brown
Mackenthun Donald W.
Meyer Joseph H.
Scheuneman James H.
Johnson Charles A.
Lee Thomas C.
Marhoefer Lawrence J.
Unisys Corporation
Williams Jr. Archie E.
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