Worked on extending the espressif/binutils-gdb repository by adding support for three SiFive RISC-V extensions, enabling matrix-multiplication and floating-point to integer clipping workflows on SiFive hardware. The work involved implementing new opcode definitions and updating extension lists within the toolchain, using C and leveraging expertise in compiler development and embedded systems. Comprehensive test coverage was introduced to validate the new features and ensure regression safety. These enhancements expanded the RISC-V ISA compatibility, improving build and debug throughput for customers. The approach demonstrated a methodical process in extending toolchain support for specialized hardware within a collaborative open-source environment.