Function guardian
Placement in the overall structure
Description
The guardian function represents the central interrupt handling routine. After the occurrence of an interrupt, the processor first jumps to the wrapper routine registered in the vector table. The wrapper routine then calls guardian, passing the number of the corresponding interrupt as a parameter. All interrupts lead therefore always to the call of guardian.
Functions
void guardian (unsigned int slot)-
The guardian function is responsible for device-specific interrupt handling.
For this purpose the corresponding Gate object
is determined with the help of the interrupt number in the global
Plugbox object plugbox and its
prologue()method is executed. If necessary, an epilogue is also requested.