# Level 1

## Problem

Directly execute amd64 machine code by calling `run()` on an array receiver.

The array should have elements kind `PACKED_DOUBLE_ELEMENTS`.

The `run()` is installed on `Array.prototype`.

## Key Knowledge

- [Inheritance and the prototype chain in JavaScript](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Inheritance_and_the_prototype_chain)
- `Receiver` Object
    - [How to understand sender and receiver in Ruby?](https://stackoverflow.com/questions/15592268/how-to-understand-sender-and-receiver-in-ruby)
    - [Could you explain sender and receiver in OOP and give examples?](https://stackoverflow.com/questions/45474802/could-you-explain-sender-and-receiver-in-oop-and-give-examples)
- [Elements Kinds in V8](https://v8.dev/blog/elements-kinds)
- IEEE754 Standard
    - Conversion between double & int64 representation using IEEE754
- ShellCode