QtSpim 9.1.20 was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this software available. QtSpim lies within Development Tools, more precisely Debugging Tools.
The most popular versions among the program users are 9.1 and 9.0. The actual developer of the free program is James Larus. We recommend checking the downloaded files with any free antivirus. You can launch this free PC program on Windows XP/XP Professional/Vista/7/8/10/11 32 and 64-bit. The common filenames for the program's installer are linguist.exe, MaintenanceTool.exe, qtcreator.exe or QtSpim.exe etc.
From the developer:
QtSpim is a self-contained simulator that runs MIPS32 programs.QtSpim also provides a simple debugger and minimal set of operating system services.QtSpim implements almost the entire MIPS32 assembler-extended instruction set. It reads and executes assembly language programs written for this processor.
You may want to check out more software, such as Python - spyder, IDA Pro Free or NVM for Windows, which might be related to QtSpim.
Debugging Tools