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/** @file
Integer division worker functions for Ia32.
Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include "BaseLibInternals.h"
/**
Worker function that Divides a 64-bit signed integer by a 64-bit signed integer and
generates a 64-bit signed result and a optional 64-bit signed remainder.
This function divides the 64-bit signed value Dividend by the 64-bit
signed value Divisor and generates a 64-bit signed quotient. If Remainder
is not NULL, then the 64-bit signed remainder is returned in Remainder.
This function returns the 64-bit signed quotient.
@param Dividend A 64-bit signed value.
@param Divisor A 64-bit signed value.
@param Remainder A pointer to a 64-bit signed value. This parameter is
optional and may be NULL.
@return Dividend / Divisor
**/
INT64
EFIAPI
InternalMathDivRemS64x64 (
IN INT64 Dividend,
IN INT64 Divisor,
OUT INT64 *Remainder OPTIONAL
)
{
INT64 Quot;
Quot = InternalMathDivRemU64x64 (
(UINT64)(Dividend >= 0 ? Dividend : -Dividend),
(UINT64)(Divisor >= 0 ? Divisor : -Divisor),
(UINT64 *)Remainder
);
if ((Remainder != NULL) && (Dividend < 0)) {
*Remainder = -*Remainder;
}
return (Dividend ^ Divisor) >= 0 ? Quot : -Quot;
}
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