Best compiler to write .nes cartridge ROMs for testing my own emulator?

• nes-emulator-java

  3 2 8.9 Java

  Nintendo Entertainment System emulator written in Java that emulates real NES hardware (6502 microprocessor CPU, 2C02 PPU)

If you are interested in my emulator you can take a look here: https://github.com/ShlomiRex/nes-emulator-java

• jsmoo

  31 68 7.1 JavaScript

  Multi-system, pure JavaScript (& a little AssemblyScript) emulator, with great accuracy and speed. Currently some SNES, NES, GameBoy, Master System, ZX Spectrum, and GameGear support

If you really want to use it, I have a bad 65816 assembler at https://github.com/raddad772/jsmoo/blob/main/component/cpu/wdc65816/wdc65816_assembler.js . Just don’t switch it to 65816 mode and it should produce compatible code. I wrote it as a pile of hacks on top of each other and you still need to add an iNES header.

• SurveyJS

  surveyjs.io sponsored

  Open-Source JSON Form Builder to Create Dynamic Forms Right in Your App. With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js.

  

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