diff options
Diffstat (limited to 'OldMdePkg/Library/BaseLib/Math64.c')
| -rw-r--r-- | OldMdePkg/Library/BaseLib/Math64.c | 371 |
1 files changed, 0 insertions, 371 deletions
diff --git a/OldMdePkg/Library/BaseLib/Math64.c b/OldMdePkg/Library/BaseLib/Math64.c deleted file mode 100644 index 514ae99020..0000000000 --- a/OldMdePkg/Library/BaseLib/Math64.c +++ /dev/null @@ -1,371 +0,0 @@ -/** @file
- Leaf math worker functions that require 64-bit arithmetic support from the
- compiler.
-
- Copyright (c) 2006, Intel Corporation<BR>
- 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.
-
- Module Name: Math64.c
-
-**/
-
-#include "BaseLibInternals.h"
-
-/**
- Shifts a 64-bit integer left between 0 and 63 bits. The low bits
- are filled with zeros. The shifted value is returned.
-
- This function shifts the 64-bit value Operand to the left by Count bits. The
- low Count bits are set to zero. The shifted value is returned.
-
- @param Operand The 64-bit operand to shift left.
- @param Count The number of bits to shift left.
-
- @return Operand << Count
-
-**/
-UINT64
-EFIAPI
-InternalMathLShiftU64 (
- IN UINT64 Operand,
- IN UINTN Count
- )
-{
- return Operand << Count;
-}
-
-/**
- Shifts a 64-bit integer right between 0 and 63 bits. This high bits
- are filled with zeros. The shifted value is returned.
-
- This function shifts the 64-bit value Operand to the right by Count bits. The
- high Count bits are set to zero. The shifted value is returned.
-
- @param Operand The 64-bit operand to shift right.
- @param Count The number of bits to shift right.
-
- @return Operand >> Count
-
-**/
-UINT64
-EFIAPI
-InternalMathRShiftU64 (
- IN UINT64 Operand,
- IN UINTN Count
- )
-{
- return Operand >> Count;
-}
-
-/**
- Shifts a 64-bit integer right between 0 and 63 bits. The high bits
- are filled with original integer's bit 63. The shifted value is returned.
-
- This function shifts the 64-bit value Operand to the right by Count bits. The
- high Count bits are set to bit 63 of Operand. The shifted value is returned.
-
- If Count is greater than 63, then ASSERT().
-
- @param Operand The 64-bit operand to shift right.
- @param Count The number of bits to shift right.
-
- @return Operand arithmetically shifted right by Count
-
-**/
-UINT64
-EFIAPI
-InternalMathARShiftU64 (
- IN UINT64 Operand,
- IN UINTN Count
- )
-{
- INTN TestValue;
-
- //
- // Test if this compiler supports arithmetic shift
- //
- TestValue = (((-1) << (sizeof (-1) * 8 - 1)) >> (sizeof (-1) * 8 - 1));
- if (TestValue == -1) {
- //
- // Arithmetic shift is supported
- //
- return (UINT64)((INT64)Operand >> Count);
- }
-
- //
- // Arithmetic is not supported
- //
- return (Operand >> Count) |
- ((INTN)Operand < 0 ? ~((UINTN)-1 >> Count) : 0);
-}
-
-
-/**
- Rotates a 64-bit integer left between 0 and 63 bits, filling
- the low bits with the high bits that were rotated.
-
- This function rotates the 64-bit value Operand to the left by Count bits. The
- low Count bits are fill with the high Count bits of Operand. The rotated
- value is returned.
-
- @param Operand The 64-bit operand to rotate left.
- @param Count The number of bits to rotate left.
-
- @return Operand <<< Count
-
-**/
-UINT64
-EFIAPI
-InternalMathLRotU64 (
- IN UINT64 Operand,
- IN UINTN Count
- )
-{
- return (Operand << Count) | (Operand >> (64 - Count));
-}
-
-/**
- Rotates a 64-bit integer right between 0 and 63 bits, filling
- the high bits with the high low bits that were rotated.
-
- This function rotates the 64-bit value Operand to the right by Count bits.
- The high Count bits are fill with the low Count bits of Operand. The rotated
- value is returned.
-
- @param Operand The 64-bit operand to rotate right.
- @param Count The number of bits to rotate right.
-
- @return Operand >>> Count
-
-**/
-UINT64
-EFIAPI
-InternalMathRRotU64 (
- IN UINT64 Operand,
- IN UINTN Count
- )
-{
- return (Operand >> Count) | (Operand << (64 - Count));
-}
-
-/**
- Switches the endianess of a 64-bit integer.
-
- This function swaps the bytes in a 64-bit unsigned value to switch the value
- from little endian to big endian or vice versa. The byte swapped value is
- returned.
-
- @param Operand A 64-bit unsigned value.
-
- @return The byte swaped Operand.
-
-**/
-UINT64
-EFIAPI
-InternalMathSwapBytes64 (
- IN UINT64 Operand
- )
-{
- UINT64 LowerBytes;
- UINT64 HigherBytes;
-
- LowerBytes = (UINT64) SwapBytes32 ((UINT32) Operand);
- HigherBytes = (UINT64) SwapBytes32 ((UINT32) (Operand >> 32));
-
- return (LowerBytes << 32 | HigherBytes);
-}
-
-/**
- Multiples a 64-bit unsigned integer by a 32-bit unsigned integer
- and generates a 64-bit unsigned result.
-
- This function multiples the 64-bit unsigned value Multiplicand by the 32-bit
- unsigned value Multiplier and generates a 64-bit unsigned result. This 64-
- bit unsigned result is returned.
-
- @param Multiplicand A 64-bit unsigned value.
- @param Multiplier A 32-bit unsigned value.
-
- @return Multiplicand * Multiplier
-
-**/
-UINT64
-EFIAPI
-InternalMathMultU64x32 (
- IN UINT64 Multiplicand,
- IN UINT32 Multiplier
- )
-{
- return Multiplicand * Multiplier;
-}
-
-
-/**
- Multiples a 64-bit unsigned integer by a 64-bit unsigned integer
- and generates a 64-bit unsigned result.
-
- This function multiples the 64-bit unsigned value Multiplicand by the 64-bit
- unsigned value Multiplier and generates a 64-bit unsigned result. This 64-
- bit unsigned result is returned.
-
- @param Multiplicand A 64-bit unsigned value.
- @param Multiplier A 64-bit unsigned value.
-
- @return Multiplicand * Multiplier
-
-**/
-UINT64
-EFIAPI
-InternalMathMultU64x64 (
- IN UINT64 Multiplicand,
- IN UINT64 Multiplier
- )
-{
- return Multiplicand * Multiplier;
-}
-
-/**
- Divides a 64-bit unsigned integer by a 32-bit unsigned integer and
- generates a 64-bit unsigned result.
-
- This function divides the 64-bit unsigned value Dividend by the 32-bit
- unsigned value Divisor and generates a 64-bit unsigned quotient. This
- function returns the 64-bit unsigned quotient.
-
- @param Dividend A 64-bit unsigned value.
- @param Divisor A 32-bit unsigned value.
-
- @return Dividend / Divisor
-
-**/
-UINT64
-EFIAPI
-InternalMathDivU64x32 (
- IN UINT64 Dividend,
- IN UINT32 Divisor
- )
-{
- return Dividend / Divisor;
-}
-
-/**
- Divides a 64-bit unsigned integer by a 32-bit unsigned integer
- and generates a 32-bit unsigned remainder.
-
- This function divides the 64-bit unsigned value Dividend by the 32-bit
- unsigned value Divisor and generates a 32-bit remainder. This function
- returns the 32-bit unsigned remainder.
-
- @param Dividend A 64-bit unsigned value.
- @param Divisor A 32-bit unsigned value.
-
- @return Dividend % Divisor
-
-**/
-UINT32
-EFIAPI
-InternalMathModU64x32 (
- IN UINT64 Dividend,
- IN UINT32 Divisor
- )
-{
- return (UINT32)(Dividend % Divisor);
-}
-
-/**
- Divides a 64-bit unsigned integer by a 32-bit unsigned integer and
- generates a 64-bit unsigned result and an optional 32-bit unsigned remainder.
-
- This function divides the 64-bit unsigned value Dividend by the 32-bit
- unsigned value Divisor and generates a 64-bit unsigned quotient. If Remainder
- is not NULL, then the 32-bit unsigned remainder is returned in Remainder.
- This function returns the 64-bit unsigned quotient.
-
- @param Dividend A 64-bit unsigned value.
- @param Divisor A 32-bit unsigned value.
- @param Remainder A pointer to a 32-bit unsigned value. This parameter is
- optional and may be NULL.
-
- @return Dividend / Divisor
-
-**/
-UINT64
-EFIAPI
-InternalMathDivRemU64x32 (
- IN UINT64 Dividend,
- IN UINT32 Divisor,
- OUT UINT32 *Remainder OPTIONAL
- )
-{
- if (Remainder != NULL) {
- *Remainder = (UINT32)(Dividend % Divisor);
- }
- return Dividend / Divisor;
-}
-
-/**
- Divides a 64-bit unsigned integer by a 64-bit unsigned integer and
- generates a 64-bit unsigned result and an optional 64-bit unsigned remainder.
-
- This function divides the 64-bit unsigned value Dividend by the 64-bit
- unsigned value Divisor and generates a 64-bit unsigned quotient. If Remainder
- is not NULL, then the 64-bit unsigned remainder is returned in Remainder.
- This function returns the 64-bit unsigned quotient.
-
- @param Dividend A 64-bit unsigned value.
- @param Divisor A 64-bit unsigned value.
- @param Remainder A pointer to a 64-bit unsigned value. This parameter is
- optional and may be NULL.
-
- @return Dividend / Divisor
-
-**/
-UINT64
-EFIAPI
-InternalMathDivRemU64x64 (
- IN UINT64 Dividend,
- IN UINT64 Divisor,
- OUT UINT64 *Remainder OPTIONAL
- )
-{
- if (Remainder != NULL) {
- *Remainder = Dividend % Divisor;
- }
- return Dividend / Divisor;
-}
-
-/**
- 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 unsigned value Dividend by the 64-bit
- unsigned value Divisor and generates a 64-bit unsigned quotient. If Remainder
- is not NULL, then the 64-bit unsigned remainder is returned in Remainder.
- This function returns the 64-bit unsigned 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
-InternalMathDivRemS64x64 (
- IN INT64 Dividend,
- IN INT64 Divisor,
- OUT INT64 *Remainder OPTIONAL
- )
-{
- if (Remainder != NULL) {
- *Remainder = Dividend % Divisor;
- }
- return Dividend / Divisor;
-}
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