public static void raiseException(int which, int badVAddr) {
Debug.println('m', "Exception: " + exceptionNames[which]);
Debug.ASSERT(Interrupt.getStatus() == Interrupt.UserMode);
registers[BadVAddrReg] = badVAddr;
delayedLoad(0, 0); // finish anything in progress
Interrupt.setStatus(Interrupt.SystemMode);
Nachos.exceptionHandler(which); // interrupts are enabled at this point
Interrupt.setStatus(Interrupt.UserMode);
}
public static void run() {
Instruction instr = new Instruction(); // storage for decoded instruction
Debug.println('m', "Starting user thread " +
Thread.currentThread().getName() +
"at time " + Nachos.stats.totalTicks);
Interrupt.setStatus(Interrupt.UserMode);
for (;;) {
oneInstruction(instr);
Interrupt.oneTick();
if (singleStep && (runUntilTime <= Nachos.stats.totalTicks))
debugger();
}
}