QtSPIMn

QtSPIMn is a free, open-source MIPS assembly language simulator. It is a graphical, cross-platform application designed for educational purposes, allowing students to learn and experiment with MIPS assembly programming. The "n" in QtSPIMn signifies that it is a network-enabled version, which can be useful for certain educational scenarios, although its primary function remains simulation.

The simulator provides a development environment where users can write MIPS assembly code, assemble it, and then execute it step-by-step. It offers a range of features to aid in learning, including a text editor for writing code, a console for displaying output, and windows for viewing registers, memory, and the program's execution flow. This visual feedback helps in understanding how MIPS instructions operate and how programs are executed at a low level.

QtSPIMn supports a subset of the MIPS R2000/R3000 instruction set, which is commonly used in introductory computer architecture courses. It simulates the behavior of a MIPS processor, including its arithmetic logic unit, control unit, and memory. By observing the changes in registers and memory during execution, students can gain practical experience with concepts such as data representation, instruction formats, addressing modes, and program control flow. The simulator also includes basic support for system calls, allowing programs to interact with the simulated environment. Its user-friendly interface makes it accessible for beginners without extensive prior knowledge of computer hardware.