package intcode.opcode

/**
 * Equals
 * If the first parameter is equal to the second parameter, it stores 1 in the position given by the third parameter.
 * Otherwise, it stores 0.
 */
case object OpCode8 extends Action
{
  /** length of an instruction */
  override val length: Int = 4

  /** Executes instruction for given parameters and modes */
  override def exec(tape: Array[Long], relative: Long, param1: Long, param2: Long, param3: Long, mode1: Int, mode2: Int, mode3: Int): Unit =
  {
    if (accessor(relative, param1, mode1, tape) == accessor(relative, param2, mode2, tape))
      writer(tape, relative, param3, mode3, 1)
    else
      writer(tape, relative, param3, mode3, 0)
  }
}