TwistedRaven
  • News
  • Bizmuth
  • FantASM
  • Downloads
FantASM
  • Overview
  • Getting Started
    • Introduction
    • Installation
    • Quick Start
  • Guide
    • Command-line reference
    • Project configuration
    • Targets & output formats
  • Language
    • Labels, constants & numbers
    • Expressions & special values
    • Directives
    • Macros, structs & enums
    • CPU extensions (Z80N & CSpect)
  • Reference
    • Instruction set
    • Diagnostics
    • NEX file format
  • Advanced
    • Rhai scripting
    • Unit testing
    • Editor integration (LSP)
  • Appendix
    • Changelog

Reference

Complete reference: the instruction set, diagnostics and the NEX format.

  • Instruction set
  • Diagnostics
  • NEX file format
© 2026 TwistedRaven. Homebrew tools for retro development.