exit(status Int) { syscall(0x2000001, status) } fork() -> Int { return syscall(0x2000002) } read(fd Int, address Pointer, length Int) -> Int { return syscall(0x2000003, fd, address, length) } write(fd Int, address Pointer, length Int) -> Int { return syscall(0x2000004, fd, address, length) } open(file Pointer, flags Int, mode Int) -> Int { return syscall(0x2000005, file, flags, mode) } close(fd Int) -> Int { return syscall(0x2000006, fd) } mmap(address Int, length Int, protection Int, flags Int) -> Pointer { return syscall(0x20000C5, address, length, protection, flags) } munmap(address Pointer, length Int) -> Int { return syscall(0x2000049, address, length) } execve(path Pointer, argv Pointer, envp Pointer) -> Int { return syscall(0x200003B, path, argv, envp) } waitid(type Int, id Int, info Pointer, options Int) -> Int { return syscall(0x20000AD, type, id, info, options) }