Worked on the xdslproject/xdsl repository to extend the Arithmetic Interpreter with support for signed integer operations, including shift left, shift right, division, remainder, and floor division. Developed these features in Python, focusing on robust arithmetic operations and interpreter development. Comprehensive unit tests were added to validate correct behavior for both positive and negative inputs, ensuring reliability and preventing future regressions. The implementation enhanced the interpreter’s numeric capabilities and laid the groundwork for further optimizations. All changes were documented in a single commit, reflecting a methodical approach to feature delivery and test coverage within the project’s codebase.