The protection of the processor status word of the PDP-11/60
Pages 27 - 30
Abstract
This work discusses the protection of the Processor Status Word of the PDP-11/60 computer and shows how a non-privileged user can modify the processor priority and execute his programs at PR7 priority level, that is, with all interrupts blocked. It also suggests some possible solutions to this problem. Finally, it considers how the problem is solved in the VAX-11.
Reference
[1]
Digital Equipment Corporation: DEC77 PDP-ll/60 Processor Handbook, DEC80 VAX-ll Architecture Handbook, DEC81 VAX-ll Hardware Handbook
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Published In
Copyright © 1982 Author.
Publisher
Association for Computing Machinery
New York, NY, United States
Publication History
Published: 01 June 1982
Published in SIGARCH Volume 10, Issue 4
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