Microinstruction controlled data processing system including mic

Details Microinstruction controlled data processing system including mic Microinstruction controlled data processing system including mic

1979-09-27

1982-02-23

Thesz, Joseph M.

Boots, shoes, and leggings

G06F 900, G06F 922, G06F 934, G06F 928

Patent

active

043171702

ABSTRACT:
Disclosed is a data processing system comprising means for storing a plurality of macroinstructions and data, means for determining a starting address of data participating in practice of a macroinstruction read out from the storing means and the entire length of said data in response to said read-out macroinstruction and reading out said data from said storing means based on the thus determined address and entire length, means for shifting the read-out data by a quantity determined by said macroinstruction and means for masking a part, determined by said macroinstruction, of said shifted data, wherein practice of macroinstructions is controlled by a microinstruction sequence, an align field is disposed for these microinstructions to control said read-out means, shifting means and masking means, said shifting means is arranged so that said shifting quantity is determined in response to said starting address and said align field, and means for putting out mask pattern signals indicating the position of data to be masked in response to said entire length of data, said starting address and said align field is disposed in said masking means.

REFERENCES:
patent: 3840861 (1974-10-01), Amdahl et al.
patent: 3858183 (1974-12-01), Amdahl et al.
patent: 4087854 (1978-05-01), Kinoshita et al.

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