Microprogrammable pipeline interlocks based on the validity of p

Details Microprogrammable pipeline interlocks based on the validity of p Microprogrammable pipeline interlocks based on the validity of p

1987-05-27

1989-08-08

Williams, Jr., Archie E.

Boots, shoes, and leggings

G06F 928, G06F 938, G06F 1314

Patent

active

048559474

ABSTRACT:
An interlock of an instruction processing pipeline in a data processing system responsive to the validity of the pipeline stages within the instruction unit pipeline under microprogram control, is provided. Thus, a microprogram can provide for the release of a particular pipeline stage based on a selected characteristic of the valid signals generated by other stages of the pipeline. An interlock control signal is generated by a decode of a field in a microinstruction stored in a control store RAM or through hardwired decoding.

REFERENCES:
patent: 4566103 (1986-01-01), Sato et al.
patent: 4585058 (1987-08-01), Lee et al.
patent: 4594655 (1986-10-01), Hao et al.
patent: 4701915 (1987-10-01), Kitamura et al.
patent: 4710866 (1987-12-01), Zolnowsky et al.
patent: 4722046 (1988-01-01), Kasrazadeh et al.

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