/*
Demonstration of the program counter.
See https://blog.jochumzen.com/p/entries.html entry 26

Click on Clock(keyboard 3) and Clear(2) to get the simulation started.
  Click the clock pin repeatedly. 
  Observe that the count on the display increases by 1 when the clock goes high.
  Remember, A=10, b = 11, C = 12, d = 13, E = 14, F = 15
  Make the count 15 (F) and click Clock
  Observe that the count goes back to zero.
  Click Clear and observe that count becomes zero.
  Set a number on the DIPs 5-8, for example 0101 (5) and click Load. 
  Observe that count becomes 5.

*/

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

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

//Define chips
auto* programCounter = new FourBitProgramCounter();
auto* decoder = new SevenSegmentDecoderAnode();

//Add all chips to be emulated here
Chip* chips[] = {
  programCounter, decoder
};

//Add all connections here
ConnectionBase* connections[] = {
  new ConnectionFour(ard, 2, programCounter->D, 1),
  new Connection(ard, 6, programCounter->Load),
  new Connection(ard, 12, programCounter->Count), //Count = 1
  new Connection(ard, 29, programCounter->Clear), 
  new Connection(ard, 30, programCounter->Clock), 

  new ConnectionFour(programCounter->Q, decoder->Q),
  new Connection(decoder->S[0], ard, 22), 
  new Connection(decoder->S[1], ard, 23), 
  new Connection(decoder->S[2], ard, 24), 
  new Connection(decoder->S[3], ard, 25), 
  new Connection(decoder->S[4], ard, 26),
  new Connection(decoder->S[5], ard, 27),
  new Connection(decoder->S[6], ard, 28),
};

//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();
}