GameBoy\Opcode::opcode201 PHP Method

    public static function opcode201(Core $core)
    {
        $core->programCounter = ($core->memoryRead($core->stackPointer + 1 & 0xffff) << 8) + $core->memoryRead($core->stackPointer);
        $core->stackPointer = $core->stackPointer + 2 & 0xffff;
    }