Return and link mechanism

Details Return and link mechanism Return and link mechanism

1978-01-03

1979-11-06

Shaw, Gareth D.

Boots, shoes, and leggings

364900, G06F 918

Patent

active

041737822

ABSTRACT:
In a data processing system, a mechanism for enabling control to be transferred between programs, or portions thereof, that reside at different addresses in an instruction store. The initial linkage is established through the use of a Branch And Link instruction. Subsequent linkages are established through the use of Return And Link instructions, each of which causes the mechanism to transfer control to a previous program, or program segment, while simultaneously establishing the linkage for a subsequent return to this program or program segment.

REFERENCES:
patent: 3309672 (1967-03-01), Brun et al.
patent: 3693162 (1972-09-01), Spangler
patent: 3972029 (1976-07-01), Bailey, Jr.

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