get started
resource: https://jbox.sjtu.edu.cn/l/UHkDo1
其余lab资源：https://ipads.se.sjtu.edu.cn:1312/lab
Lab1
- partA: getting familiarized with ARM assembly language,the QEMU emulator (version >= 3.1), and the power-on bootstrap procedure
- partB: examines the boot loader for ChCore
- partC: delves into the initialization for ChCore kernel