From the git repo:<p><pre><code> webMARS is a browser implementation of MARS MIPS 4.5: editor, assembler, simulator, help system, and classic MARS tools in a single web UI.
Overview
- Single-page IDE for editing, assembling, running, stepping, backstepping, and debugging MIPS programs.
- Multi-window desktop/mobile UI with registers, text/data segments, labels, messages, Run I/O, and tool windows.
- Built-in help system with localized pages and embedded reference material.
- Persistent browser workspace for files, session restore, settings, and tool state.
- Single JavaScript assembler and simulator core, with no native runtime dependency.
</code></pre>
And from [0]:<p><pre><code> MARS is a lightweight interactive development environment for programming in MIPS assembly language, intended for educational-level use with Patterson and Hennessy's Computer Organization and Design.
</code></pre>
---<p>To run the demo program:<p>1. Run > Compile<p>1a. In the popup window select 'Open ASM as new file'<p>2. Run > Assemble, context will change to the 'Execute' tab.<p>3. Click the little 'Go' button near top-center.<p>4. ???<p>5. Profit!<p>---<p>[0] <a href="https://computerscience.missouristate.edu/mars-mips-simulator.htm" rel="nofollow">https://computerscience.missouristate.edu/mars-mips-simulato...</a>