- Configured and used SPIKE to simulate a RISC-V machine and its GCC compiler.- Modified riscv-gnu-toolchain components like riscv-binutils and riscv-gcc by adding new opcodes and instruction patterns to implement new custom instructions for RISC-V.- Analyzed the objdump of sample C programs in RISC-V to ensure usage of new instructions.

– Studied and modified system files like proc.c, proc.h, syscall.c, syscall.h, sysproc.c, defs.h and user.h.– Custom system calls like numvm and numpp to fetch number of virtual pages and physical pages for user processes.– Studied spinlock.c in Xv6 and implemented a custom spinlock system call.

- Facilitated a complete overhaul of the testing architecture by removing the need of populating database assets, resulting in a significant performance boost while running tests for applications.- Wrote PyTests for various existing routes with the help of Postman, and fixed bugs.- Organized, cleaned and analysed application data consisting of multiple large data files, using Pandas.