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C/C++ Source or Header  |  1993-07-30  |  348 b   |  23 lines
  1. static unsigned short countdown;
  2. static unsigned short *bufr;
  3. static unsigned long maxidx;
  4. static unsigned long off;
  5. static unsigned long shift_val;
  6.  
  7. void f()
  8. {
  9.     unsigned long v;
  10.  
  11.     if(--countdown > 0)
  12.     return;
  13.     countdown = 4;
  14.     v = v - off;
  15.     if( v < off)
  16.     return;
  17.     v = v >> shift_val;
  18.     if(v > maxidx)
  19.     return;
  20.  
  21.     bufr[v]++;
  22. }
  23.