公开(公告)号：CA1151309A

公开(公告)日：1983-08-02

申请号：CA372683

申请日：1981-03-10

Applicant: IBM

Inventor： CANNAVINO JAMES A ,  HELLER ANDREW R ,  TARADALSKY MORRIS ,  WORLEY WILLIAM S JR

IPC: G06F9/46 ,  G06F12/06 ,  G06F12/10 ,  G06F12/14 ,  G06F13/00

Abstract: P09-80-011 Permits one program in one address space to obtain access to data in another address space without invoking a supervisor. Each of a plurality of address spaces assigned an Address Space Number (ASN) has an associated set of address translation tables. Addressability to a second address space may be specified by a program if authorized in accordance with the entry of an authority table associated with the second address space, the entry being designated by an authorization index associated with the program.