Hi! I am Pengji Zhang and you have reached my personal website. In my day job, I mostly do mathematical modeling of transportation networks and software development.
Outside of my job, I have a passion for programming in general, and I am especially interested in systems programming, computer graphics, and GPGPU. Here are some of my hobby projects:
- chip8hs: a CHIP-8 virtual machine with a TUI.
- expose: a Linux tool for inspecting the outputs of another running process. I wrote this tool to scratch my own itch. It still has some flaws that I do not know how to solve (see the comments in the source file), but it has been working really well for me.
- coro: a stackful coroutine demo in C99. This was also my first attempt on a libc-free program. It is based on various things I learned mainly from Chris Wellons – arena allocator, direct Linux system calls, and also his original implementation for Windows.
- texbox: my own LaTeX classes, styles, and other tools.
All of those projects are dedicated to the public domain. I hope my hobby projects could be helpful to you, and I appreciate comments, suggestions, and criticisms on the mistakes I made (or other things).
I am eager to learn new things, and I would like to share my thoughts about the topics and techniques I have learned on either of the two blogs. However, I was having a hard time in the past three years, and so there have been no updates to the blogs for a long time. Things start to get better now. I am planning to overhaul this website in the near future and start writing again soon.