blob: 3653e4203b9231a170e885a4ce297e7c2c3355b2 (
plain)
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
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
|
// SPDX-License-Identifier: BSD-2-Clause-Patent
/*
* This code is based on EDK II MdePkg/Library/BaseLib/Math64.c
* Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.
*/
#include "lib.h"
/**
* LShiftU64() - left shift
*/
UINT64
LShiftU64 (
IN UINT64 Operand,
IN UINTN Count
)
{
return Operand << Count;
}
/**
* RShiftU64() - right shift
*/
UINT64
RShiftU64 (
IN UINT64 Operand,
IN UINTN Count
)
{
return Operand >> Count;
}
/**
* MultU64x32() - multiply
*/
UINT64
MultU64x32 (
IN UINT64 Multiplicand,
IN UINTN Multiplier
)
{
return Multiplicand * Multiplier;
}
/**
* DivU64x32() - divide
*/
UINT64
DivU64x32 (
IN UINT64 Dividend,
IN UINTN Divisor,
OUT UINTN *Remainder OPTIONAL
)
{
ASSERT(Divisor != 0);
if (Remainder) {
*Remainder = Dividend % Divisor;
}
return Dividend / Divisor;
}
|