Patent · US Expired

Industrial controller compiler with expandable instruction set

US5819097A · kind A · utility

29Cited by
7References
15Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 9, 1996
Grant dateOct 6, 1998
Priority date
Expiry dateDec 9, 2016

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG06F8/447
  • WIPO fieldComputer technology
  • WIPO sectorElectrical engineering

Abstract

A compiler for an industrial controller uses a user modifiable instruction table to contain code fragments necessary to compile particular instructions. During compilation, the instructions are replaced with the code fragments. Thus new instructions recognizable by the compiler may be added simply by editing this instruction table. Multiple instructions having the same name are resolved through a best match of operand types which examines the possible data loss in conversion of operand types to select a particular one of the instructions.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.