public Ram(IBus bus, IControlUnit controlUnit, IRegister mar)
{
this.Bus = bus;
busOutputLine = controlUnit.GetControlLine(ControlLineId.RAM_OUT);
busInputLine = controlUnit.GetControlLine(ControlLineId.RAM_IN);
this.mar = mar;
// Setup the callback for when the bus output line goes high or low. Depending on which, we either start or stop driving the bus
busOutputLine.onTransition = () =>
{
if (busOutputLine.State == true)
{
Bus.Driver = this;
}
else
{
if (Bus.Driver == this)
{
Bus.Driver = null;
}
}
return(true);
};
// Setup the callback for when the bus output line goes high or low. Depending on which, we either start or stop driving the bus
busInputLine.onTransition = () =>
{
if (busInputLine.State == true)
{
Write(Bus.Value);
}
return(true);
};
}
public ProgramCounter(IClock clock, IBus bus, IControlUnit controlUnit)
{
this.Bus = bus;
busOutputLine = controlUnit.GetControlLine(ControlLineId.PC_OUT);
countEnableLine = controlUnit.GetControlLine(ControlLineId.PC_ENABLE);
busInputLine = controlUnit.GetControlLine(ControlLineId.PC_IN);
clock.AddConnectedComponent(this);
// Setup the callback for when the bus output line goes high or low. Depending on which, we either start or stop driving the bus
busOutputLine.onTransition = () =>
{
if (busOutputLine.State == true)
{
Bus.Driver = this;
}
else
{
if (Bus.Driver == this)
{
Bus.Driver = null;
}
}
return(true);
};
}
public Alu(IBus bus, IControlUnit controlUnit, IRegister aReg, IRegister bReg)
{
Bus = bus;
this.aReg = aReg;
this.bReg = bReg;
busOutputLine = controlUnit.GetControlLine(ControlLineId.SUM_OUT);
subLine = controlUnit.GetControlLine(ControlLineId.SUBTRACT);
subLine.onTransition = () =>
{
// When the sub line changes, pull the value to refresh it, and the flags
byte val = Value;
return(true);
};
busOutputLine.onTransition = () =>
{
if (busOutputLine.State == true)
{
Bus.Driver = this;
}
else
{
if (Bus.Driver == this)
{
Bus.Driver = null;
}
}
return(true);
};
}
public Clock(IControlUnit controlUnit)
{
//HltLine = controlUnit.GetControlLine(ControlLineId.HLT);
FrequencyHz = 1;
ClockMode = Mode.Stepped;
clockConnectedComponents = new List <IClockConnectedComponent>();
HltLine = controlUnit.GetControlLine(ControlLineId.HLT);
}
public FlagsRegister4Bit(SystemRegister id, IClock clock, IControlUnit controlUnit, IAlu alu)
{
this.id = id;
Value = 0;
this.controlUnit = controlUnit;
this.alu = alu;
clock.AddConnectedComponent(this);
updateFlagsLine = controlUnit.GetControlLine(ControlLineId.UPDATE_FLAGS);
}
public Register(SystemRegister id, IClock clock, IBus bus, IControlUnit controlUnit)
{
this.id = id;
Bus = bus;
Value = 0;
this.controlUnit = controlUnit;
clock.AddConnectedComponent(this);
switch (id)
{
case SystemRegister.A:
busOutputLine = controlUnit.GetControlLine(ControlLineId.A_REG_OUT);
busInputLine = controlUnit.GetControlLine(ControlLineId.A_REG_IN);
break;
case SystemRegister.B:
busOutputLine = controlUnit.GetControlLine(ControlLineId.B_REG_OUT);
busInputLine = controlUnit.GetControlLine(ControlLineId.B_REG_IN);
break;
case SystemRegister.MAR:
busOutputLine = null;
busInputLine = controlUnit.GetControlLine(ControlLineId.MAR_IN);
break;
case SystemRegister.IR:
busOutputLine = null;
busInputLine = controlUnit.GetControlLine(ControlLineId.IR_IN);
break;
case SystemRegister.IR_PARAM:
busOutputLine = controlUnit.GetControlLine(ControlLineId.IR_PARAM_OUT);
busInputLine = controlUnit.GetControlLine(ControlLineId.IR_PARAM_IN);
break;
case SystemRegister.OUT:
busOutputLine = null;
busInputLine = controlUnit.GetControlLine(ControlLineId.OUT_REG_IN);
break;
default:
throw new ArgumentException("missing reg type");
}
// Setup the callback for when the bus output line goes high or low. Depending on which, we either start or stop driving the bus
if (busOutputLine != null)
{
busOutputLine.onTransition = () =>
{
if (busOutputLine.State == true)
{
Bus.Driver = this;
}
else
{
if (Bus.Driver == this)
{
Bus.Driver = null;
}
}
return(true);
};
}
}
