DragonStub/lib/arm/math.c

/*
 * arm/math.c - math routines for ARM
 *
 * Copright (C) 2014 Linaro Ltd.
 * Author: Ard Biesheuvel <ard.biesheuvel@linaro.org>
 *
 * 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.
 */

#include "lib.h"

UINT64
LShiftU64 (
    IN UINT64   Operand,
    IN UINTN    Count
    )
// Left shift 64bit by 32bit and get a 64bit result
{
    return Operand << Count;
}

UINT64
RShiftU64 (
    IN UINT64   Operand,
    IN UINTN    Count
    )
// Right shift 64bit by 32bit and get a 64bit result
{
    return Operand >> Count;
}


UINT64
MultU64x32 (
    IN UINT64   Multiplicand,
    IN UINTN    Multiplier
    )
// Multiple 64bit by 32bit and get a 64bit result
{
    return Multiplicand * Multiplier;
}