An implementation of capabilities on the PDP-11/45

  title={An implementation of capabilities on the PDP-11/45},
  author={C. Hoch and J. Browne},
  journal={ACM SIGOPS Oper. Syst. Rev.},
  • C. Hoch, J. Browne
  • Published 1980
  • Computer Science
  • ACM SIGOPS Oper. Syst. Rev.
  • This paper defines a capability implementation which uses the memory management hardware and the TRAP instruction of the higher members of the Digital Equipment Corporation PDP-11/XX (XX = 34, 45, 55, 70) to create a capability architecture processor. No modifications to hardware are necessary. The architecture created has a strong similarity to that of the Plessey 250. An operating system based on this architecture could provide a basis for implementation of highly reliable and secure software… CONTINUE READING