The CYMS Interpreter is a web-based interpreter for the CYMS assembly language.
It can be accessed at https://hawksley.dev/cyms-interpreter

Some of its features include:

• 4096 addressable sections of memory
• 255x144 pixel output screen
• Output terminal for diagnostics
• Data represented as signed integers between -2⁵³ and 2⁵³
• Specialised Index and Time registers
• Constants mapping strings to numbers
• Labels identifying line numbers, used for branch instructions
• Procedure calling and returning
• Sine wave playback with customisable frequency
• Input handling
• Simple stack implementation
• Flexible variety of addressing modes

Ethan Hawksley