[X]

1. X
2. XA_TEST1
3. XA_TEST2
4. XCASE
5. XCT
6. XD_CONTROL
7. XD_DATA
8. XD_GEOMETRY
9. XD_INFO
10. XD_JUMPER
11. XD_MAXDRIVES
12. XD_RESERVED
13. XD_RESET
14. XD_RETRIES
15. XD_SELECT
16. XD_SIGNATURE
17. XD_STATUS
18. XD_TIMEOUT
19. XENIX_LINK_MAX
20. XENIX_NICFREE
21. XENIX_NICINOD
22. XENIX_SUPER_MAGIC
23. XIAFS_ADDRS_PER_Z
24. XIAFS_ADDRS_PER_Z_BITS
25. XIAFS_BITS_PER_Z
26. XIAFS_BITS_PER_Z_BITS
27. XIAFS_GET_BLOCKS
28. XIAFS_INODES_PER_Z
29. XIAFS_PUT_BLOCKS
30. XIAFS_ZSHIFT
31. XIAFS_ZSIZE
32. XIAFS_ZSIZE_BITS
33. XJIFFER
34. XMIT_1_RETRY
35. XMIT_BUFF
36. XMIT_BUFF_SIZE
37. XMIT_DEF
38. XMIT_END
39. XMIT_ERR
40. XMIT_LCAR
41. XMIT_LCOL
42. XMIT_OWN
43. XMIT_RESERV
44. XMIT_RETRY
45. XMIT_RTRY
46. XMIT_START
47. XMIT_TDRMASK
48. XMIT_UFLO
49. XMITtime
50. XMTU
51. XSIG_LL
52. XTABS
53. XTALFREQ
54. XT_DISK_MAJOR
55. Xmit_pkt
56. Xmit_resp
57. Xsig
58. XsigH
59. XsigL
60. XsigLL