LXR uboot/arch/sh/lib/ashldi3.c

   1#include "libgcc.h"
   2
   3long long __ashldi3(long long u, word_type b)
   4{
   5        DWunion uu, w;
   6        word_type bm;
   7
   8        if (b == 0)
   9                return u;
  10
  11        uu.ll = u;
  12        bm = 32 - b;
  13
  14        if (bm <= 0) {
  15                w.s.low = 0;
  16                w.s.high = (unsigned int) uu.s.low << -bm;
  17        } else {
  18                const unsigned int carries = (unsigned int) uu.s.low >> bm;
  19
  20                w.s.low = (unsigned int) uu.s.low << b;
  21                w.s.high = ((unsigned int) uu.s.high << b) | carries;
  22        }
  23
  24        return w.ll;
  25}
  26