HELPER: an interactive extensible debugging system

Authors:
H. E. Kulsrud
Affiliations:
Institute for Defense Analyses, Princeton, New Jersey
Venue:
SOSP '69 Proceedings of the second symposium on Operating systems principles
Year:
1969

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Abstract

HELPER is a symbol oriented debugging system used for programs which have been compiled previously. It is easily extensible employing an incremental compiler to process commands given in a natural language. Programs are executed by simulation permitting a number of analysis actions to take place on each instruction. Debugging is both dynamic and static. Many program errors are caught before execution and a back up feature is provided to check code in the neighborhood of an error. Free access to more machine oriented debugging tools is possible and a complete record of each computer session is kept.