Data processor with improved microprogramming

Details Data processor with improved microprogramming Data processor with improved microprogramming

1977-09-02

1980-01-01

Shaw, Gareth D.

Boots, shoes, and leggings

G06F 720, G06F 728, G05B 1302

Patent

active

041819357

ABSTRACT:
Improved means and methods are described for providing microprogramming in a microprogrammed data processor. A separate, relatively fast access Read/Write microinstruction memory is provided which operates as an index-associative cache memory with respect to the processor main memory in a manner which permits a high "hit" ratio to be obtained for requested microinstructions, while at the same time removing the burden from the programmer of having to be concerned with the loading and/or current contents of the microinstruction memory.

REFERENCES:
patent: 3593354 (1971-07-01), Moll
patent: 3740723 (1973-06-01), Beausoleil et al.
patent: 3766526 (1973-10-01), Buchanan
patent: 3766532 (1973-10-01), Liebel, Jr.
patent: 3893084 (1975-07-01), Kotok et al.
patent: 3896419 (1975-08-01), Vance et al.
patent: 3896419 (1975-07-01), Lange et al.
patent: 3898624 (1975-08-01), Tobias
patent: 3938097 (1976-02-01), Niguette

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