Method for loading an application programme in a chip card

Details Method for loading an application programme in a chip card Method for loading an application programme in a chip card

G - Physics

06

F

G06F 9/445 (2006.01) G06F 9/45 (2006.01)

Patent

CA 2276716

In order to solve the problems arising from the coexistence (BANK, SERVICE) of various programmes in the same chip card it is proposed to equip the operational system (5) of the chip set (1) of said card with a loading programme (CHAR) which transforms the whole application programme (15), such that the instructions and data of this application programme are allocated with absolute addresses (2356), directly usable in the integrated circuit, and corresponding to the real addresses in a data memory (4) of said integrated circuit. Thus it is shown that by so doing, it is possible to ensure both the coexistence and independence of application programmes in the chip set.

Pour résoudre des problèmes de coexistence (BANQUE, SERVICE) de divers programmes dans une même carte à puce on prévoit de munir le système d'exploitation (5) de la puce (1) de cette carte, d'un programme (CHAR) de chargement qui transforme tout programme (15) d'utilisation, de façon à ce que les instructions et les données de ce programme d'application soient affectés d'adresses absolues (2356), utilisables directement dans le circuit intégré, et correspondant aux adresses réelles dans une mémoire (4) de données de ce circuit intégré. On montre qu'en agissant ainsi, on permet à la fois la cohabitation et l'indépendance des programmes d'utilisation chargés dans les puces.

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