Address key register load/store instruction system

Details Address key register load/store instruction system Address key register load/store instruction system

1976-04-30

1977-08-16

Nusbaum, Mark E.

Boots, shoes, and leggings

G06F 900

Patent

active

040429130

ABSTRACT:
The disclosure describes instruction operated controls for loading or storing address key values into or from one or more address key register sections in a key-register-controlled addressing system. The controls load or store one or all key register sections of an address key register (AKR) in a processor from or to a word in either a main memory or a general purpose register (GPR). Both the load or store controls are operated by the same instruction format, in which one field indicates whether the operation is to be a load or store of the designated AKR section(s). Another field designates one AKR section, or all AKR sections, which are to be loaded or stored. A still further field designates whether the operation is to be from or to main memory or a GPR. The disclosure provides circuits which operate with microcode to perform these operations.

REFERENCES:
patent: 3634883 (1972-01-01), Kriedermacher
patent: 3646522 (1972-02-01), Furman et al.
patent: 3771136 (1973-11-01), Heneghan et al.
patent: 3855580 (1974-12-01), Lighthall et al.
patent: 3916387 (1975-10-01), Woodrum
patent: 3958227 (1976-05-01), Evans

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