83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
49 lines
933 B
C
49 lines
933 B
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* ashldi3.c extracted from gcc-2.7.2.3/libgcc2.c and
|
|
* gcc-2.7.2.3/longlong.h
|
|
*
|
|
* Copyright (C) 1989-2015 Free Software Foundation, Inc.
|
|
*/
|
|
|
|
#define BITS_PER_UNIT 8
|
|
|
|
typedef int SItype __attribute__ ((mode (SI)));
|
|
typedef unsigned int USItype __attribute__ ((mode (SI)));
|
|
typedef int DItype __attribute__ ((mode (DI)));
|
|
typedef int word_type __attribute__ ((mode (__word__)));
|
|
|
|
struct DIstruct {SItype high, low;};
|
|
|
|
typedef union
|
|
{
|
|
struct DIstruct s;
|
|
DItype ll;
|
|
} DIunion;
|
|
|
|
DItype __ashldi3 (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.low = 0;
|
|
w.s.high = (USItype)uu.s.low << -bm;
|
|
}
|
|
else
|
|
{
|
|
USItype carries = (USItype)uu.s.low >> bm;
|
|
w.s.low = (USItype)uu.s.low << b;
|
|
w.s.high = ((USItype)uu.s.high << b) | carries;
|
|
}
|
|
|
|
return w.ll;
|
|
} |