Paging mechanism
US4218741A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 23, 1978 |
| Grant date | Aug 19, 1980 |
| Priority date | — |
| Expiry date | Jun 23, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/34
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In a data processing system, a mechanism provides independent assignment of page locations for a program's instructions and its data and better enables control to be transferred between programs, or portions thereof, that reside at different addresses in different pages of a multiple page 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 transfers control to a previous program, or program segment, while simultaneously establishing the linkage for a subsequent return to this program or program segment. PAC INTRODUCTION PAC CROSS REFERENCES TO RELATED APPLICATIONS U.S. Patent application of J. D. Dixon, one of the co-inventors herein, Ser. Nos. 866,425, filed Jan. 3, 1978 and 918,223, filed of even date herewith, both assigned to the assignee of the present invention, show and describe, but do not claim, portions of the invention claimed in the present invention. PAC BACKGROUND OF THE INVENTION This invention relates to mechanisms for permitting program instructions and data to reside in the same or different pages of storage indepen…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.