The last few days I’ve been improving the small pseudo-assembler interpreter/IDE that I had created. I am quite happy with the result.

The new version of QPasm has the following new features:

• Code editor with intelligent syntax highlighting, line numbering, visual breakpoints and undo/redo functionality
• Debugging features: breakpoints, manual step, timed step, pausing
• On-the-fly editing of data in the register or the memory
• On-the-fly symbol resolving: labels can be used in assembler apps, and when modifying memory when the program is running the labels are resolved automatically
• Integrates well with light and dark system themes. Highlighter chooses its color theme based on the darkness of the theme automatically, but colors and fonts can be configured manually as well
• Layout, font and color settings are stored locally in a portable config.ini file
• Input format is very flexible: white space may occur before, after and between instructions, instructions are case insensitive, comments are supported anywhere
• Pseudo-assembler apps which are run using the run-function run in a separate thread which has a system preventing the GUI from freezing by limiting the amount of simultaneous signals to the GUI. Assembler apps which cause an endless loop cannot freeze the GUI

More information, binaries and source code are available at http://code.google.com/p/qpasm/