File: ffs.h

package info (click to toggle)
linux-tools 3.16-3
  • links: PTS, VCS
  • area: main
  • in suites: jessie-kfreebsd
  • size: 73,776 kB
  • sloc: ansic: 962,256; perl: 14,061; makefile: 6,629; sh: 5,629; cpp: 5,599; python: 4,547; asm: 4,106; yacc: 2,566; lex: 1,436; pascal: 80; awk: 6
file content (32 lines) | stat: -rw-r--r-- 638 bytes parent folder | download | duplicates (33)
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
30
31
32
/*
 * OpenRISC Linux
 *
 * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 */

#ifndef __ASM_OPENRISC_FFS_H
#define __ASM_OPENRISC_FFS_H

#ifdef CONFIG_OPENRISC_HAVE_INST_FF1

static inline int ffs(int x)
{
	int ret;

	__asm__ ("l.ff1 %0,%1"
		 : "=r" (ret)
		 : "r" (x));

	return ret;
}

#else
#include <asm-generic/bitops/ffs.h>
#endif

#endif /* __ASM_OPENRISC_FFS_H */