public PortStatusAndControlRegisterChanges setValue(uint value)
{
PortStatusAndControlRegisterChanges retVal = new PortStatusAndControlRegisterChanges(); //idicates if interrupt should be rised after this fcn
retVal.ConnectChange = false;
retVal.EnableChange = false;
//uint oldValue = portValue;
uint tmpValue = portValue & ~(WriteMask);
//if(SystemBus != null) this.Log(LogType.Error,"current PC {0:x}", ((IControllableCPU)SystemBus.GetCPUs().First()).PC);
portValue = (value & WriteMask) | tmpValue;
if ((value & ConnectStatusChange) != 0)
{
portValue &= ~(ConnectStatusChange);
}
if ((value & PortEnabledDisabledChange) != 0)
{
portValue &= ~(PortEnabledDisabledChange);
}
if ((value & PortPower) != 0 && (powered == false))
{
retVal = this.powerUp();
}
if ((value & PortReset) != 0)
{
this.resetRise();
// this.resetFall();
}
if (((value & PortReset) == 0) && reset == true)
{
resetFall();
//retVal.ConnectChange = true;
}
if ((value & PortEnabledDisabled) != 0)
{
retVal = this.Enable();
}
if ((portValue & PortEnabledDisabled) == 0)
{
// if(SystemBus != null)
// this.Log(LogType.Error,"zerowanie Enable current PC {0:x}", ((IControllableCPU)SystemBus.GetCPUs().First()).PC);
}
/* Remove reset bit */
portValue &= ~(0x1000u);
return(retVal);
}
private PortStatusAndControlRegisterChanges checkChanges(uint oldPortVal, uint newPortVal)
{
var change = new PortStatusAndControlRegisterChanges();
change.ConnectChange = false;
change.EnableChange = false;
if ((oldPortVal & CurrentConnectStatus) != (newPortVal & CurrentConnectStatus))
{
change.ConnectChange = true;
portValue |= ConnectStatusChange;
}
if ((oldPortVal & PortEnabledDisabled) != (newPortVal & PortEnabledDisabled))
{
change.EnableChange = true;
portValue |= PortEnabledDisabledChange;
}
return(change);
}