63 lines
859 B
C
63 lines
859 B
C
// SPDX-License-Identifier: BSD-2-Clause-Patent
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/*
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* This code is based on EDK II MdePkg/Library/BaseLib/Math64.c
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* Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.
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*/
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#include "lib.h"
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/**
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* LShiftU64() - left shift
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*/
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UINT64
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LShiftU64 (
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IN UINT64 Operand,
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IN UINTN Count
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)
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{
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return Operand << Count;
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}
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/**
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* RShiftU64() - right shift
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*/
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UINT64
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RShiftU64 (
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IN UINT64 Operand,
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IN UINTN Count
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)
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{
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return Operand >> Count;
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}
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/**
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* MultU64x32() - multiply
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*/
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UINT64
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MultU64x32 (
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IN UINT64 Multiplicand,
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IN UINTN Multiplier
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)
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{
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return Multiplicand * Multiplier;
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}
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/**
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* DivU64x32() - divide
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*/
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UINT64
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DivU64x32 (
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IN UINT64 Dividend,
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IN UINTN Divisor,
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OUT UINTN *Remainder OPTIONAL
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)
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{
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ASSERT(Divisor != 0);
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if (Remainder) {
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*Remainder = Dividend % Divisor;
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}
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return Dividend / Divisor;
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}
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