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Leaked source code of windows server 2003
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windows-server-2003/base/crts/fpw32/tran/i386/87ctrig.asm

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  1. page ,132
  2. title 87ctrig - C interfaces - sin, cos, tan
  3. ;***
  4. ;87ctrig.asm - trig functions (8087/emulator version)
  5. ;
  6. ; Copyright (c) 1984-2001, Microsoft Corporation. All rights reserved.
  7. ;
  8. ;Purpose:
  9. ; C interfaces for the sin, cos, and tan functions (8087/emulator version)
  10. ;
  11. ;Revision History:
  12. ; 07-04-84 GFW initial version
  13. ; 05-08-87 BCM added C intrinsic interface (_CI...)
  14. ; 10-12-87 BCM changes for OS/2 Support Library
  15. ; 11-24-87 BCM added _loadds under ifdef DLL
  16. ; 01-18-88 BCM eliminated IBMC20; ifos2,noos2 ==> ifmt,nomt
  17. ; 08-26-88 WAJ 386 version
  18. ; 11-20-89 WAJ Don't need pascal for MTHREAD 386.
  19. ;
  20. ;*******************************************************************************
  22. .xlist
  23. include cruntime.inc
  24. .list
  26. .data
  27. extrn _OP_SINjmptab:word
  28. extrn _OP_COSjmptab:word
  29. extrn _OP_TANjmptab:word
  31. page
  33. CODESEG
  35. extrn _ctrandisp1:near
  36. extrn _ctrandisp2:near
  39. public oldsin
  40. oldsin proc
  42. mov edx, OFFSET _OP_SINjmptab
  43. trigdisp::
  44. jmp _ctrandisp1
  46. oldsin endp
  49. public oldcos
  50. oldcos proc
  52. mov edx, OFFSET _OP_COSjmptab
  53. jmp trigdisp
  55. oldcos endp
  58. public oldtan
  59. oldtan proc
  61. mov edx, OFFSET _OP_TANjmptab
  62. jmp trigdisp
  64. oldtan endp
  67. extrn _cintrindisp1:near
  68. extrn _cintrindisp2:near
  71. public _old_CIsin
  72. _old_CIsin proc
  74. mov edx, OFFSET _OP_SINjmptab
  75. itrigdisp::
  76. jmp _cintrindisp1
  78. _old_CIsin endp
  81. public _old_CIcos
  82. _old_CIcos proc
  84. mov edx, OFFSET _OP_COSjmptab
  85. jmp itrigdisp
  87. _old_CIcos endp
  90. public _old_CItan
  91. _old_CItan proc
  93. mov edx, OFFSET _OP_TANjmptab
  94. jmp itrigdisp
  96. _old_CItan endp
  99. end