Hardware for extending microprocessor addressing capability

Details Hardware for extending microprocessor addressing capability Hardware for extending microprocessor addressing capability

1981-06-01

1983-12-06

Heckler, Thomas M.

Boots, shoes, and leggings

G06F 936

Patent

active

044197276

ABSTRACT:
A paging apparatus for improved mapping of virtual addresses to real addresses, addressing physical devices coupled to various communication buses, and controlling flow of data. By means of an eight-bit addressing apparatus activated for certain instructions which normally can address only 256 locations, an additional 512 locations can typically be addressed by generating control signals to modify a virtual address into a real address capable of addressing the additional locations. Additionally, the apparatus can control flow of data by enabling or disabling data control apparatus.

REFERENCES:
patent: 4109310 (1978-08-01), England et al.
patent: 4162519 (1979-07-01), Hanewinkel
patent: 4179738 (1979-12-01), Fairchild et al.
patent: 4206503 (1980-06-01), Woods et al.
patent: 4241397 (1980-12-01), Strecker et al.

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