Linkage mechanism for program isolation

Details Linkage mechanism for program isolation Linkage mechanism for program isolation

1991-07-19

1993-06-15

Clark, David L.

Boots, shoes, and leggings

364DIG2, 3649380, 3649463, 3649462, 3649646, 3649640, 3649710, G06F 942

Patent

active

052206696

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.

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