map_peripheral_bus(); configure_interrupts(); write_register(0x2C, ACTIVATION_SIGNATURE); printf("Petka 85-86-88 activation successful.\n");
Some legacy systems lack an RTOS. In that case, you must emulate threading using a state machine in a single loop : petka 85 86 88 activation thread requirement work
expand_key(read_register(0x2A)); write_register(0x2B, computed_checksum); volatile("mb" ::: "memory"); petka_86_done = 1; printf("Petka 85-86-88 activation successful.\n")