Assist: a self modifiable assembler for instructional purposes

  • Authors:
  • J. R. Mashey;G. M. Campbell;C. Forney, Jr.

  • Affiliations:
  • Pennsylvania State University;Pennsylvania State University;Pennsylvania State University

  • Venue:
  • ACM '72 Proceedings of the ACM annual conference - Volume 1
  • Year:
  • 1972

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Abstract

ASSIST - Assembler System for Student Instruction and Systems Teaching, is a self-modifiable IN-CORE Assembler F compatible System/360 assembler-interpreter. It allows students to replace portions of the assembler using a process which is economical and provides good diagnostics. It has the capability of assembling a subroutine written in assembler language, linking the routine to itself and then executing another program utilizing the newly linked subroutine. The replaceable subroutines perform many of the basic functions required in an assembler, e.g. symbol table management, general expression evaluator, etc. The new subroutine results are compared with standard results and thus explicit diagnostics are available. Performance figures are supplied.