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linux-next/arch/blackfin/lib/ashrdi3.c
Robin Getz 96f1050d3d Blackfin: mass clean up of copyright/licensing info
Bill Gatliff & David Brownell pointed out we were missing some
copyrights, and licensing terms in some of the files in
./arch/blackfin, so this fixes things, and cleans them up.

It also removes:
 - verbose GPL text(refer to the top level ./COPYING file)
 - file names (you are looking at the file)
 - bug url (it's in the ./MAINTAINERS file)
 - "or later" on GPL-2, when we did not have that right

It also allows some Blackfin-specific assembly files to be under a BSD
like license (for people to use them outside of Linux).

Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-10-07 04:36:26 -04:00

37 lines
681 B
C

/*
* Copyright 2004-2009 Analog Devices Inc.
*
* Licensed under the GPL-2 or later.
*/
#include "gcclib.h"
#ifdef CONFIG_ARITHMETIC_OPS_L1
DItype __ashrdi3(DItype u, word_type b)__attribute__((l1_text));
#endif
DItype __ashrdi3(DItype u, word_type b)
{
DIunion w;
word_type bm;
DIunion uu;
if (b == 0)
return u;
uu.ll = u;
bm = (sizeof(SItype) * BITS_PER_UNIT) - b;
if (bm <= 0) {
/* w.s.high = 1..1 or 0..0 */
w.s.high = uu.s.high >> (sizeof(SItype) * BITS_PER_UNIT - 1);
w.s.low = uu.s.high >> -bm;
} else {
USItype carries = (USItype) uu.s.high << bm;
w.s.high = uu.s.high >> b;
w.s.low = ((USItype) uu.s.low >> b) | carries;
}
return w.ll;
}