Linkage mechanism for program isolation
US5220669A · kind A · utility
47Cited by
26References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 19, 1991 |
| Grant date | Jun 15, 1993 |
| Priority date | — |
| Expiry date | Jul 19, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/3806
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A computer system has general purpose registers, control registers and access registers for containing information to allow address space capability. A linkage stack uses protected address space to store state information during program call and program return operations. The linkage stack contains information relating to state entries for the saved information and header and trailer entries to point to other linkage stack sections. A control register contains the pointer to the current linkage stack entry and is changed as the program call or return moves through the stack.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.