Apparatus and method for processing macroinstructions and microi

Details Apparatus and method for processing macroinstructions and microi Apparatus and method for processing macroinstructions and microi

1983-05-18

1985-10-29

Thomas, James D.

Boots, shoes, and leggings

G06F 900, G06F 1300

Patent

active

045503699

ABSTRACT:
An instruction processing apparatus is composed of a main memory for storing user instructions and an instruction control section with a control store addressed by a user instruction read out from the main memory. The main memory stores a high performance instruction with the same function as that of a set of low performance instructions, in addition to ordinary user instructions (low performance instructions). The instruction control section includes a first control store which is addressed by a high performance instruction from the main memory and stores a first microprogram with the same format and function as those of a set of the low performance instructions to form a high performance instruction, and a second control store which is addressed by the output of said first control store and a low performance instruction from the main memory and stores a second microprogram to form a low performance instruction.

REFERENCES:
patent: 4179736 (1979-12-01), Wilhite
patent: 4225922 (1980-09-01), Porter
patent: 4450519 (1984-05-01), Guttag et al.

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