home *** CD-ROM | disk | FTP | other *** search
/ Power-Programmierung / CD2.mdf / c / library / dos / timer / msec_12 / timer.c < prev    next >
Encoding:
C/C++ Source or Header  |  1991-12-11  |  266 b   |  16 lines
  1. #include    <dos.h>
  2.  
  3. #define TimerResolution    1193L
  4. #define UL unsigned long
  5.  
  6. static UL cardinal(UL l)
  7. {
  8.     return( (signed long)l<0 ? 4294967296.0 + l : l );
  9. }
  10.  
  11. UL
  12. elapsedtime(UL start, UL stop)
  13. {
  14.     return( (cardinal(stop - start) / TimerResolution));
  15. }
  16.