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char *configstart   for (configstart = (char *)0xbffff000;         configstart > (char *)0xbff80000;         configstart -= 0x1000)         {         if ( *(int *)configstart == 0x35333131) {            /* megvan a config magic */            break;         }         u8 *mac[6] = configstart+102;         memcpy(dev->dev_addr, kiskutya, 6);