What exactly is this?
This is a page that tells you what to put in the eax/rax register for system calls. There are a lot of options and this is to help you figure out what to put during certian operations. (Updated when I need to use them in code)
32 Bit using int 0x80
1 - Exit
3 - System read
4 - System write
162 - Nanosleep
64 Bit using syscall
60 - Exit
0 - System read
1 - System write
35 - Nanosleep
32 Bit full list: https://faculty.nps.edu/cseagle/assembly/sys_call.html
64 Bit full list: https://blog.rchapman.org/posts/Linux_System_Call_Table_for_x86_64/Â