Patent
1995-06-06
1998-08-18
Hua, Ly
395490, G06F 100, G06F 1206, G06F 758
Patent
active
057969400
ABSTRACT:
A method for executing software which is stored in an external memory attached to console equipment having a CPU uses software assets advantageously. The console equipment is designed to bank switch from a BIOS ROM included in the console equipment to the software stored in the external memory during an initialization routine, to check the genuineness of the software during a security check routine, and to execute the software by the CPU of the console equipment during a program executing routine if the software is judged to be genuine during the security check routine. In some embodiments of the method, the program is executed by the CPU during the program executing routine after the security check routine, at least, has been skipped. In other embodiments, the security check is always forced to be successful. Circuitry for performing the method is also disclosed.
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Hua Ly
Sega Enterprises Ltd.
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