This repository hosts the definition of an API which can be used to write unit tests for the NES or Famicom.

The idea is:

• Choose a familiar and convenient programming environment to write your tests in (e.g., C++, Python, Node.JS, etc).
• Choose a testing framework you're comfortable with.
• Import some kind of NES emulation library implementing this API.
• Write your unit tests with it.
  • Supply the emulation library with the iNES ROM image from your assembler's output.
  • Initialize the memory and various registers with any contents necessary for your tests.
  • Point the virtual CPU at a memory address and execute until return or some other kind of criteria, repeating if necessary.
  • Examine memory, registers, etc, and determine correctness.