From aa5f2556fbd010135340e2f5d6b89b1fa125e8e1 Mon Sep 17 00:00:00 2001 From: vanjeff Date: Tue, 28 Oct 2008 03:16:59 +0000 Subject: [PATCH] Copied remotely git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@6258 6f19259b-4bc3-4df7-8a09-765794883524 --- .../Library/BaseLib/Ia32/DivS64x64Remainder.c | 53 +++++++++++++++++++ 1 file changed, 53 insertions(+) create mode 100644 MdePkg/Library/BaseLib/Ia32/DivS64x64Remainder.c diff --git a/MdePkg/Library/BaseLib/Ia32/DivS64x64Remainder.c b/MdePkg/Library/BaseLib/Ia32/DivS64x64Remainder.c new file mode 100644 index 0000000000..c5e894f287 --- /dev/null +++ b/MdePkg/Library/BaseLib/Ia32/DivS64x64Remainder.c @@ -0,0 +1,53 @@ +/** @file + Integer division worker functions for Ia32. + + Copyright (c) 2006 - 2008, Intel Corporation
+ All rights reserved. This program and the accompanying materials + are licensed and made available under the terms and conditions of the BSD License + which accompanies this distribution. The full text of the license may be found at + http://opensource.org/licenses/bsd-license.php + + THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, + WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. + +**/ + +#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 ( + Dividend >= 0 ? Dividend : -Dividend, + Divisor >= 0 ? Divisor : -Divisor, + (UINT64 *) Remainder + ); + if (Remainder != NULL && Dividend < 0) { + *Remainder = -*Remainder; + } + return (Dividend ^ Divisor) >= 0 ? Quot : -Quot; +} -- 2.39.2