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Leaked source code of windows server 2003
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windows-server-2003/base/mvdm/dos/v86/doskrnl/bios/msequ.inc

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commiting as it is
4 years ago
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  2. ftoobig equ 80h
  3. fbig equ 40h
  4. romstatus equ 1
  5. romread equ 2
  6. romwrite equ 3
  7. romverify equ 4
  8. romformat equ 5
  11. rsinit = 0a3h ;rs232 initialization
  12. ;9600 baud:no parity:1 stop:8 bit word
  14. lf = 10 ;line feed
  15. cr = 13 ;carriage return
  16. backsp = 8 ;backspace
  17. brkadr = 1bh * 4 ;006c 1bh break vector address
  18. timadr = 1ch * 4 ;0070 1ch timer interrupt
  19. dskadr = 1eh * 4 ;address of ptr to disk parameters
  20. sec9 = 522h ;address of disk parameters
  21. headsettle= sec9+9 ;address of head settle time
  22. normsettle= 15 ;normal head settle
  23. speedsettle= 0 ;speed up settle time
  24. initspot= 534h ;ibm wants 4 zeros here
  25. akport = 20h
  26. eoi = 20h
  28. cmdlen = 0 ;length of this command
  29. unit = 1 ;sub unit specifier
  30. cmd = 2 ;command code
  31. status = 3 ;status
  32. media = 13 ;media descriptor
  33. trans = 14 ;transfer address
  34. count = 18 ;count of blocks or characters
  35. start = 20 ;first block to transfer
  36. extra = 22 ;usually a pointer to vol id for error 15
  37. start_l = 26 ; extended start sector (low)
  38. start_h = 28 ; extended start sector (high)
  41. chrout = 29h
  42. maxerr = 5
  43. lstdrv = 504h
  45. bootbias = 200h
  46. notbusystatus = 10000000b ; not busy
  47. ackstatus = 01000000b ; acknowledge (for what?)
  48. nopaperstatus = 00100000b ; no more paper
  49. .selectedstatus = 00010000b ; the printer said it was selected
  50. ioerrstatus = 00001000b ; some kinda error
  51. reserved = 00000110b ; nops
  52. timeoutstatus = 00000001b ; time out.
  53. error_unknown_media = 7 ; for use in build bpb call
  55. DOS_FLAG_OFFSET equ 86h ; offset of DOS_FLAG var in dos data seg