# Pepper kernel system call table

The following table contains all of the system calls supported by PepperOS, as well as their arguments. The explanation for what every system call does is available as a comment above each function in corresponding files in the `src/syscall` folder.

Name | Number (%rax) | arg0 (%rdi) | arg1 (%rsi) | arg2 (%rdx) |
|---|---|---|---|---|
| sys_read | 0 | unsigned int fd | char* buf | size_t count |
| sys_write | 1 | unsigned int fd | const char* buf | size_t count |
| sys_open | 2 | const char* filename | int flags | |
| sys_close | 3 | unsigned int fd | | |
| sys_exit | 60 | int error_code | | |