Leaf math worker functions that require 64-bit arithmetic support from the\r
compiler.\r
\r
- Copyright (c) 2006 - 2008, Intel Corporation<BR>\r
- All rights reserved. This program and the accompanying materials\r
- are licensed and made available under the terms and conditions of the BSD License\r
- which accompanies this distribution. The full text of the license may be found at\r
- http://opensource.org/licenses/bsd-license.php\r
-\r
- THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
- WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
+ Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>\r
+ SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
\r
-\r
-\r
-\r
#include "BaseLibInternals.h"\r
\r
/**\r
@param Operand The 64-bit operand to shift left.\r
@param Count The number of bits to shift left.\r
\r
- @return Operand << Count\r
+ @return Operand << Count.\r
\r
**/\r
UINT64\r
EFIAPI\r
InternalMathLShiftU64 (\r
- IN UINT64 Operand,\r
- IN UINTN Count\r
+ IN UINT64 Operand,\r
+ IN UINTN Count\r
)\r
{\r
return Operand << Count;\r
@param Operand The 64-bit operand to shift right.\r
@param Count The number of bits to shift right.\r
\r
- @return Operand >> Count\r
+ @return Operand >> Count.\r
\r
**/\r
UINT64\r
EFIAPI\r
InternalMathRShiftU64 (\r
- IN UINT64 Operand,\r
- IN UINTN Count\r
+ IN UINT64 Operand,\r
+ IN UINTN Count\r
)\r
{\r
return Operand >> Count;\r
This function shifts the 64-bit value Operand to the right by Count bits. The\r
high Count bits are set to bit 63 of Operand. The shifted value is returned.\r
\r
- If Count is greater than 63, then ASSERT().\r
-\r
@param Operand The 64-bit operand to shift right.\r
@param Count The number of bits to shift right.\r
\r
- @return Operand arithmetically shifted right by Count\r
+ @return Operand arithmetically shifted right by Count.\r
\r
**/\r
UINT64\r
EFIAPI\r
InternalMathARShiftU64 (\r
- IN UINT64 Operand,\r
- IN UINTN Count\r
+ IN UINT64 Operand,\r
+ IN UINTN Count\r
)\r
{\r
INTN TestValue;\r
//\r
// Test if this compiler supports arithmetic shift\r
//\r
- TestValue = (((-1) << (sizeof (-1) * 8 - 1)) >> (sizeof (-1) * 8 - 1));\r
+ TestValue = (INTN)((INT64)(1ULL << 63) >> 63);\r
if (TestValue == -1) {\r
//\r
// Arithmetic shift is supported\r
((INTN)Operand < 0 ? ~((UINTN)-1 >> Count) : 0);\r
}\r
\r
-\r
/**\r
Rotates a 64-bit integer left between 0 and 63 bits, filling\r
the low bits with the high bits that were rotated.\r
@param Operand The 64-bit operand to rotate left.\r
@param Count The number of bits to rotate left.\r
\r
- @return Operand <<< Count\r
+ @return Operand <<< Count.\r
\r
**/\r
UINT64\r
EFIAPI\r
InternalMathLRotU64 (\r
- IN UINT64 Operand,\r
- IN UINTN Count\r
+ IN UINT64 Operand,\r
+ IN UINTN Count\r
)\r
{\r
return (Operand << Count) | (Operand >> (64 - Count));\r
@param Operand The 64-bit operand to rotate right.\r
@param Count The number of bits to rotate right.\r
\r
- @return Operand >>> Count\r
+ @return Operand >>> Count.\r
\r
**/\r
UINT64\r
EFIAPI\r
InternalMathRRotU64 (\r
- IN UINT64 Operand,\r
- IN UINTN Count\r
+ IN UINT64 Operand,\r
+ IN UINTN Count\r
)\r
{\r
return (Operand >> Count) | (Operand << (64 - Count));\r
\r
@param Operand A 64-bit unsigned value.\r
\r
- @return The byte swaped Operand.\r
+ @return The byte swapped Operand.\r
\r
**/\r
UINT64\r
EFIAPI\r
InternalMathSwapBytes64 (\r
- IN UINT64 Operand\r
+ IN UINT64 Operand\r
)\r
{\r
UINT64 LowerBytes;\r
UINT64 HigherBytes;\r
\r
- LowerBytes = (UINT64) SwapBytes32 ((UINT32) Operand);\r
- HigherBytes = (UINT64) SwapBytes32 ((UINT32) (Operand >> 32));\r
+ LowerBytes = (UINT64)SwapBytes32 ((UINT32)Operand);\r
+ HigherBytes = (UINT64)SwapBytes32 ((UINT32)(Operand >> 32));\r
\r
return (LowerBytes << 32 | HigherBytes);\r
}\r
\r
/**\r
- Multiples a 64-bit unsigned integer by a 32-bit unsigned integer\r
+ Multiplies a 64-bit unsigned integer by a 32-bit unsigned integer\r
and generates a 64-bit unsigned result.\r
\r
- This function multiples the 64-bit unsigned value Multiplicand by the 32-bit\r
+ This function multiplies the 64-bit unsigned value Multiplicand by the 32-bit\r
unsigned value Multiplier and generates a 64-bit unsigned result. This 64-\r
bit unsigned result is returned.\r
\r
UINT64\r
EFIAPI\r
InternalMathMultU64x32 (\r
- IN UINT64 Multiplicand,\r
- IN UINT32 Multiplier\r
+ IN UINT64 Multiplicand,\r
+ IN UINT32 Multiplier\r
)\r
{\r
return Multiplicand * Multiplier;\r
}\r
\r
-\r
/**\r
- Multiples a 64-bit unsigned integer by a 64-bit unsigned integer\r
+ Multiplies a 64-bit unsigned integer by a 64-bit unsigned integer\r
and generates a 64-bit unsigned result.\r
\r
- This function multiples the 64-bit unsigned value Multiplicand by the 64-bit\r
+ This function multiplies the 64-bit unsigned value Multiplicand by the 64-bit\r
unsigned value Multiplier and generates a 64-bit unsigned result. This 64-\r
bit unsigned result is returned.\r
\r
@param Multiplicand A 64-bit unsigned value.\r
@param Multiplier A 64-bit unsigned value.\r
\r
- @return Multiplicand * Multiplier\r
+ @return Multiplicand * Multiplier.\r
\r
**/\r
UINT64\r
EFIAPI\r
InternalMathMultU64x64 (\r
- IN UINT64 Multiplicand,\r
- IN UINT64 Multiplier\r
+ IN UINT64 Multiplicand,\r
+ IN UINT64 Multiplier\r
)\r
{\r
return Multiplicand * Multiplier;\r
unsigned value Divisor and generates a 64-bit unsigned quotient. This\r
function returns the 64-bit unsigned quotient.\r
\r
- @param Dividend A 64-bit unsigned value.\r
+ @param Dividend A 64-bit unsigned value.\r
@param Divisor A 32-bit unsigned value.\r
\r
- @return Dividend / Divisor\r
+ @return Dividend / Divisor.\r
\r
**/\r
UINT64\r
EFIAPI\r
InternalMathDivU64x32 (\r
- IN UINT64 Dividend,\r
- IN UINT32 Divisor\r
+ IN UINT64 Dividend,\r
+ IN UINT32 Divisor\r
)\r
{\r
return Dividend / Divisor;\r
}\r
\r
/**\r
- Divides a 64-bit unsigned integer by a 32-bit unsigned integer\r
- and generates a 32-bit unsigned remainder.\r
+ Divides a 64-bit unsigned integer by a 32-bit unsigned integer and\r
+ generates a 32-bit unsigned remainder.\r
\r
This function divides the 64-bit unsigned value Dividend by the 32-bit\r
unsigned value Divisor and generates a 32-bit remainder. This function\r
@param Dividend A 64-bit unsigned value.\r
@param Divisor A 32-bit unsigned value.\r
\r
- @return Dividend % Divisor\r
+ @return Dividend % Divisor.\r
\r
**/\r
UINT32\r
EFIAPI\r
InternalMathModU64x32 (\r
- IN UINT64 Dividend,\r
- IN UINT32 Divisor\r
+ IN UINT64 Dividend,\r
+ IN UINT32 Divisor\r
)\r
{\r
return (UINT32)(Dividend % Divisor);\r
@param Remainder A pointer to a 32-bit unsigned value. This parameter is\r
optional and may be NULL.\r
\r
- @return Dividend / Divisor\r
+ @return Dividend / Divisor.\r
\r
**/\r
UINT64\r
EFIAPI\r
InternalMathDivRemU64x32 (\r
- IN UINT64 Dividend,\r
- IN UINT32 Divisor,\r
- OUT UINT32 *Remainder OPTIONAL\r
+ IN UINT64 Dividend,\r
+ IN UINT32 Divisor,\r
+ OUT UINT32 *Remainder OPTIONAL\r
)\r
{\r
if (Remainder != NULL) {\r
*Remainder = (UINT32)(Dividend % Divisor);\r
}\r
+\r
return Dividend / Divisor;\r
}\r
\r
UINT64\r
EFIAPI\r
InternalMathDivRemU64x64 (\r
- IN UINT64 Dividend,\r
- IN UINT64 Divisor,\r
- OUT UINT64 *Remainder OPTIONAL\r
+ IN UINT64 Dividend,\r
+ IN UINT64 Divisor,\r
+ OUT UINT64 *Remainder OPTIONAL\r
)\r
{\r
if (Remainder != NULL) {\r
*Remainder = Dividend % Divisor;\r
}\r
+\r
return Dividend / Divisor;\r
}\r
\r
/**\r
Divides a 64-bit signed integer by a 64-bit signed integer and\r
- generates a 64-bit signed result and a optional 64-bit signed remainder.\r
+ generates a 64-bit signed result and an optional 64-bit signed remainder.\r
\r
This function divides the 64-bit signed value Dividend by the 64-bit\r
signed value Divisor and generates a 64-bit signed quotient. If Remainder\r
@param Remainder A pointer to a 64-bit signed value. This parameter is\r
optional and may be NULL.\r
\r
- @return Dividend / Divisor\r
+ @return Dividend / Divisor.\r
\r
**/\r
INT64\r
EFIAPI\r
InternalMathDivRemS64x64 (\r
- IN INT64 Dividend,\r
- IN INT64 Divisor,\r
- OUT INT64 *Remainder OPTIONAL\r
+ IN INT64 Dividend,\r
+ IN INT64 Divisor,\r
+ OUT INT64 *Remainder OPTIONAL\r
)\r
{\r
if (Remainder != NULL) {\r
*Remainder = Dividend % Divisor;\r
}\r
+\r
return Dividend / Divisor;\r
}\r
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