File: lshrdi3.c

package info (click to toggle)
linux 3.2.73-2
  • links: PTS, VCS
  • area: main
  • in suites: wheezy
  • size: 692,996 kB
  • sloc: ansic: 9,719,677; asm: 244,034; xml: 40,377; makefile: 23,845; perl: 16,079; python: 4,929; sh: 4,425; cpp: 3,598; yacc: 2,979; lex: 1,726; awk: 708; pascal: 231; lisp: 218; sed: 30
file content (29 lines) | stat: -rw-r--r-- 477 bytes parent folder | download | duplicates (53)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
#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);