Static information storage and retrieval – Magnetic bubbles – Guide structure
Patent
1994-05-17
1997-04-08
Robertson, David L.
Static information storage and retrieval
Magnetic bubbles
Guide structure
365 49, G06F 1210
Patent
active
056196725
ABSTRACT:
A precise TLB error detection and shutdown circuit that detects for two or more matching tag entries in a TLB by providing an array of n units of error detection circuit unit <i>, wherein each error detection unit <i> comprises a first input B<i> coupled to an associated bit <i> of an input n-bit tag compare indicator. A second input A<i> is coupled to an output bit of an immediately preceding error detection unit <i-1>. A third input C<i> is coupled to a output bit of a immediately preceding error detection unit <i-1>. Each error detection unit <i> generates a first output bit X<i>, the output indicator X<i> indicating a result of detecting two or more matching tag entries, and a second output indicator Y<i>, the output indicator Y<i> indicating a result of detecting one or more matching tag entries. The TLB shutdown circuit generates an active TLB shutdown indicator in response to detecting an active state in the address translation cycle indicator and an active state in a termainal output indicator X<n-1> from the array error detection units.
REFERENCES:
patent: 5220526 (1993-06-01), Giles et al.
patent: 5325507 (1994-06-01), Freitas et al.
French Paul K.
Sutu Yue-Hong
Robertson David L.
Silicon Graphics Inc.
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