Branch protection in a program

Verzweigungsschutz in einem Programm

Protection d'un branchement dans un programme

Abstract

The process involves determining a result on several bits as indicated by respective conditions, where the result corresponds to an operation including a fixed value and an input data. An address of a jump operation is calculated from the result. Blocking instructions are calculated from a program, where the instructions are placed at addresses to perform the jump operation when a variable does not satisfy a condition. An independent claim is also included for a process executing a program.
L'invention concerne un procédé de réalisation d'au moins un branchement dans un programme exécuté par un processeur, consistant : à déterminer (20) un résultat (RES) sur plusieurs bits comme indicateur d'un respect d'une condition souhaitée, le résultat correspondant à une opération prenant en compte au moins une valeur prédéterminée (VAL) et au moins une variable courante (E) ; et à calculer (21) une adresse de branchement fonction du résultat.

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