Staging
v0.5.1
swh:1:snp:a902887e4be9191b7c6c4406aa06b31c1ce2c7cc
Raw File
Tip revision: d70ac829b7f42d7ef4f879635c6a772b0b4ed0a2 authored by Linus Torvalds on 20 June 2008, 23:19:44 UTC
Linux 2.6.26-rc7
Tip revision: d70ac82
lshrdi3.c
#include <linux/module.h>

#include "libgcc.h"

long long __lshrdi3(long long u, word_type b)
{
	DWunion uu, w;
	word_type bm;

	if (b == 0)
		return u;

	uu.ll = u;
	bm = 32 - b;

	if (bm <= 0) {
		w.s.high = 0;
		w.s.low = (unsigned int) uu.s.high >> -bm;
	} else {
		const unsigned int carries = (unsigned int) uu.s.high << bm;

		w.s.high = (unsigned int) uu.s.high >> b;
		w.s.low = ((unsigned int) uu.s.low >> b) | carries;
	}

	return w.ll;
}

EXPORT_SYMBOL(__lshrdi3);
back to top