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Assembly Source File  |  1992-06-10  |  1.2 KB  |  48 lines
  1. ;[]-----------------------------------------------------------------[]
  2. ;|      N_SCOPY.ASM -- near struct copy routine                      |
  3. ;[]-----------------------------------------------------------------[]
  4.  
  5. ;
  6. ;       C/C++ Run Time Library - Version 5.0
  7. ; 
  8. ;       Copyright (c) 1987, 1992 by Borland International
  9. ;       All Rights Reserved.
  10. ; 
  11.  
  12.                 INCLUDE RULES.ASI
  13.  
  14. ; calls to this routine are generated by the compiler to copy
  15. ; one "struct" value to another
  16. ;
  17. ; On entry:
  18. ;
  19. ;       CX      = Number of bytes to copy
  20.  
  21.  
  22. _TEXT           SEGMENT
  23.                 ASSUME  CS:_TEXT
  24.  
  25.                 public  N_SCOPY@
  26.  
  27. N_SCOPY@:
  28.                 push    bp
  29.                 mov     bp,sp
  30.                 push    si
  31.                 push    di
  32.                 push    ds
  33.                 lds     si,dword ptr 4[bp]
  34.                 les     di,dword ptr 8[bp]
  35.                 cld
  36.                 shr     cx, 1
  37.                 rep     movsw
  38.                 adc     cx, cx
  39.                 rep     movsb
  40.                 pop     ds
  41.                 pop     di
  42.                 pop     si
  43.                 pop     bp
  44.                 ret     8
  45.  
  46. _TEXT           ENDS
  47.                 END
  48.