1 #define SYS_fork 1 2 #define SYS_exit 2 3 #define SYS_wait 3 4 #define SYS_pipe 4 5 #define SYS_write 5 6 #define SYS_read 6 7 #define SYS_close 7 8 #define SYS_kill 9 9 #define SYS_exec 10 10 #define SYS_open 11 11 #define SYS_mknod 12 12 #define SYS_unlink 13 13 #define SYS_fstat 14 14 #define SYS_link 15 15 #define SYS_mkdir 16 16 #define SYS_chdir 17 17 #define SYS_dup 18 18 19