huawei-mrd-kernel/arch/h8300/lib/lshrdi3.c

23 lines
432 B
C

#include "libgcc.h"
DWtype __lshrdi3(DWtype u, word_type b)
{
const DWunion uu = {.ll = u};
const word_type bm = (sizeof (Wtype) * BITS_PER_UNIT) - b;
DWunion w;
if (b == 0)
return u;
if (bm <= 0) {
w.s.high = 0;
w.s.low = (UWtype) uu.s.high >> -bm;
} else {
const UWtype carries = (UWtype) uu.s.high << bm;
w.s.high = (UWtype) uu.s.high >> b;
w.s.low = ((UWtype) uu.s.low >> b) | carries;
}
return w.ll;
}