public void ShouldGuardPeripheralReads([Range(1, 4)] int cpuCount)
{
using (var emulation = new Emulation())
using (var machine = new Machine())
{
emulation.AddMachine(machine);
var sysbus = machine.SystemBus;
cpuCount.Times(() => sysbus.Register(new ActivelyAskingCPU(machine, 0), new CPURegistrationPoint()));
var peripheral = new ActivelyAskedPeripheral();
sysbus.Register(peripheral, 0.To(1000));
machine.Start();
Thread.Sleep(1000);
machine.Pause();
Assert.IsFalse(peripheral.Failed, "Peripheral was concurrently accessed from multiple CPUs.");
}
}
public void ShouldPauseAndResumeOnlyOnce()
{
using (var emulation = new Emulation())
using (var machine = new Machine())
{
emulation.AddMachine(machine);
var sb = machine.SystemBus;
var mock = new Mock <IHasOwnLife>();
sb.Register(mock.As <IDoubleWordPeripheral>().Object, 0.To(100));
sb.Register(new Mock <ICPU>().Object, new CPURegistrationPoint());
machine.Start();
PauseResumeRetries.Times(machine.Pause);
mock.Verify(x => x.Pause(), Times.Once());
PauseResumeRetries.Times(machine.Start);
mock.Verify(x => x.Resume(), Times.Once());
}
}
public void ShouldHandleManagedThreads()
{
var counter = 0;
var a = (Action)(() => counter++);
using (var emulation = new Emulation())
{
var machine = new Machine();
emulation.MasterTimeSource.Quantum = Time.TimeInterval.FromMilliseconds(1000);
emulation.MasterTimeSource.AdvanceImmediately = true;
machine.LocalTimeSource.Quantum = Time.TimeInterval.FromMilliseconds(1000);
machine.LocalTimeSource.AdvanceImmediately = true;
emulation.AddMachine(machine);
var mt = machine.ObtainManagedThread(a, 1);
emulation.RunToNearestSyncPoint();
emulation.RunToNearestSyncPoint();
emulation.RunToNearestSyncPoint();
Assert.AreEqual(0, counter);
mt.Start();
emulation.RunToNearestSyncPoint();
Assert.AreEqual(1, counter);
emulation.RunToNearestSyncPoint();
Assert.AreEqual(2, counter);
emulation.RunToNearestSyncPoint();
Assert.AreEqual(3, counter);
mt.Stop();
emulation.RunToNearestSyncPoint();
emulation.RunToNearestSyncPoint();
emulation.RunToNearestSyncPoint();
Assert.AreEqual(3, counter);
}
}
