The process overall was fairly straight-forward for me. I worked on the first half of the project, ensured that was implemented correctly, then started implementing the rest of the functions. It took me the longest to implement malloc and free because they were the most technologoically involved and were more challenging overall to code and debug. Once the heap was finalized, I ensured all other functions were implemented correctly and that the code was well structured.
Below are all of the functions implemented in ARM Assembly:
- bzero
- strncpy
- malloc
- free
- alarm
- signal
- strcmp
- atoi
- atol
- atoll
- memcpy
- memmove
In addition to the required functions for the project, I also added additional ones inspired by already implemented C standard library functions for inspiration. This was why I started with strcmp as it was similar to strncpy and laid the foundation for how I would implement the rest of them. I ensured all functions were implemented similarly with clear comments and formatting.
Figure 1: General Execution Flow of Program
