47 	int		fd;  in main()  local
54 	fd = sys_semihost_open(TEST_FILE_NAME, SH_OPEN_W);  in main()
55 	if (fd < 0) {  in main()
59 	not_written = sys_semihost_write(fd, TEST_STRING, TEST_STRING_LEN);  in main()
65 	ret = sys_semihost_close(fd);  in main()
66 	fd = -1;  in main()
72 	fd = sys_semihost_open(TEST_FILE_NAME, SH_OPEN_R);  in main()
73 	if (fd < 0) {  in main()
78 	not_read = sys_semihost_read(fd, buf, sizeof(buf));  in main()
91 	if (fd >= 0)  in main()
92 		(void) sys_semihost_close(fd);  in main()