-%define SYS_SEEK 76 ; Seek to a new position in the file
-%define SYS_TELL 77 ; Return the current file position
-%define SYS_CHDIR 78 ; Change current directory
-%define SYS_GETCWD 79 ; Get current directory
-%define SYS_MOUNT 80 ; Mount a filesystem
+%define SYS_MKDIR 76 ; Create a new directory
+%define SYS_LINK 77 ; Create a new link to a file
+%define SYS_SYMLINK 78 ; Create a symbolic link
+%define SYS_UNLINK 79 ; Delete a file
+%define SYS_TELL 80 ; Return the current file position
+%define SYS_CHDIR 81 ; Change current directory
+%define SYS_GETCWD 82 ; Get current directory
+%define SYS_MOUNT 83 ; Mount a filesystem