G - Physics – 06 – K
Patent
G - Physics
06
K
G06K 19/00 (2006.01) G06F 9/445 (2006.01)
Patent
CA 2302694
The invention relates to a chip card (CK) containing a program execution unit (P) and a memory (S) for at least one application dependent reloadable program (P1..Pn), whereby in each reloadable program (P1..Pn) first command statements (OP11..OP1z) with absolute address parameters (adr11..adr1z) which refer to a memory areas (S1) not occupied by the reloadable program (P1..Pn) are separated from second command statements (OP21..OP2x) with absolute address parameters (adr21..adr2x) which refer to the memory area (B1..Bn) occupied by the reloadable program (P1..Pn). One advantage of the invention is that the reloadable program can be reloaded at each random start address (SA..SAn) in the memory (S) in an application dependent manner and can be adapted to said address by the program execution unit (P). Another advantage provided by the invention is that the creation of different reloadable program versions relating to possible application conditional start addresses is no longer necessary.
L'invention concerne une carte à puce (CK) possédant une unité d'exécution de programme (P) et une mémoire (S) destinée à au moins un programme (P1...Pn) chargeable ultérieurement en fonction de l'application. Dans chaque programme chargeable ultérieurement (P1..Pn), de premières instructions de commande (OP11..OP1z) contenant des paramètres d'adresses absolus (adr11..adr1z) qui renvoient à des zones mémoire (S1) non occupées par le programme chargeable ultérieurement (P1..Pn), sont séparées de deuxièmes instructions de commande (OP21..OP2x) contenant des paramètres d'adresses absolus (adr21..adr2x) qui renvoient à la zone mémoire (B1..Bn) occupée par le programme chargeable ultérieurement (P1..Pn). L'invention permet le chargement ultérieur du programme chargeable ultérieurement en fonction de l'application à toute adresse de départ (SA1..SAn) quelconque de la mémoire (S) et son adaptation à l'unité d'exécution de programme (P) par cette même unité. De plus, l'invention rend superflue la création de différentes versions de programme chargeables ultérieurement en relation avec des adresses de départ possibles dues à l'application.
Aktiengesellschaft Siemens
Fetherstonhaugh & Co.
LandOfFree
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