04566103 is referenced by 13 patents and cites 4 patents.

An erroneous microinstruction and related preceding microinstructions are subjected to a so-called retry operation so as to restore the microprogram-controlled unit and correct the error. The retry operation is carried out under an interlock mode, in which both detection and correction occur prior to processing for each microinstruction. At the same time, an address specifying a thus detected erroneous microinstruction is recorded. When the recorded address is next generated, the interlock mode is automatically entered for the erroneous microstruction only.

Title
Method for recovering from error in a microprogram-controlled unit
Application Number
6/534134
Publication Number
4566103
Application Date
September 20, 1983
Publication Date
January 21, 1986
Inventor
Kazuyuki Shimizu
Machida
JP
Kiyosumi Sato
Kawasaki
JP
Agent
Staas & Halsey
Assignee
Fujitsu
JP
IPC
G06F 11/00
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