/*
Demonstration of a D flip-flop designed using a master-slave configuration
Allows you to investigate each gate in the flip-flop.
Check out Entry 8 at https://blog.jochumzen.com/p/entries.html 
Specifically, check out the schematics under Step-by-Step Construction..

Click D and CLK once to get the simulation going.

*/


//Library with basic gates
#include <ACELBG.h>

//Create an Arduino board 
auto* ard = new ArduinoBoard();

//Define chips
auto* masterL = new NandLatch((char*)("Master"));
auto* slaveL = new NandLatch((char*)("Slave"));

auto* ngate1 = new NandGate((char*)("Master Upper"));
auto* ngate2 = new NandGate((char*)("Master Lower"));
auto* ngate3 = new NandGate((char*)("Slave Upper"));
auto* ngate4 = new NandGate((char*)("Slave Lower"));

auto* invD = new Inverter((char*)("Invert D"));
auto* invCLK = new Inverter((char*)("Invert CLK"));

auto* dFlipFlop = new DFlipFlop((char*)("D flip-flop"));

//Add all chips to be emulated here
Chip* chips[] = {
  masterL, slaveL, ngate1, ngate2, ngate3, ngate4, invD, invCLK, dFlipFlop
};

//Add all connections here
  ConnectionBase* connections[] = {
      // D is on pin 2, CLK on pin 3. Final Q output is on pin 4
      //Inverters
      new Connection(ard, 2, invD->X),
      new Connection(ard, 3, invCLK->X),
      //Master
      new Connection(ard, 2, ngate1->X1), 
      new Connection(invCLK->Y, ngate1->X2), 
      new Connection(invD->Y, ngate2->X1),
      new Connection(invCLK->Y, ngate2->X2),
      new Connection(ngate1->Y, masterL->Reset),
      new Connection(ngate2->Y, masterL->Set),
      //Slave
      new Connection(masterL->Q, ngate3->X1),
      new Connection(ard, 3, ngate3->X2),
      new Connection(masterL->Q_Bar, ngate4->X1),
      new Connection(ard, 3, ngate4->X2),
      new Connection(ngate3->Y, slaveL->Reset),
      new Connection(ngate4->Y, slaveL->Set),

      new Connection(slaveL->Q, ard, 4),

      //Using the ACEL D-flip-flop
      new Connection(ard, 2, dFlipFlop->D),
      new Connection(ard, 3, dFlipFlop->Clock),
      new Connection(dFlipFlop->Q, ard, 5),
  };

//Section 6: Setting up the emulation. No need to change
Emulation emulation = Emulation(ard, chips, sizeof(chips)/2, 
  connections, sizeof(connections)/2);

void setup() {
  Serial.begin(9600); Serial.println(); Serial.println("START"); 
  Serial.println();
  emulation.makePrintPin(13, 1);
}

void loop() {
  emulation.emulate();
}