diff options
Diffstat (limited to 'OldMdePkg/Library/BaseLib/Ipf/Unaligned.c')
| -rw-r--r-- | OldMdePkg/Library/BaseLib/Ipf/Unaligned.c | 243 |
1 files changed, 0 insertions, 243 deletions
diff --git a/OldMdePkg/Library/BaseLib/Ipf/Unaligned.c b/OldMdePkg/Library/BaseLib/Ipf/Unaligned.c deleted file mode 100644 index fc634044b9..0000000000 --- a/OldMdePkg/Library/BaseLib/Ipf/Unaligned.c +++ /dev/null @@ -1,243 +0,0 @@ -/** @file
- Unaligned access functions of BaseLib for IPF.
-
- 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: Unaligned.c
-
-**/
-
-/**
- Reads a 16-bit value from memory that may be unaligned.
-
- This function returns the 16-bit value pointed to by Buffer. The function
- guarantees that the read operation does not produce an alignment fault.
-
- If the Buffer is NULL, then ASSERT().
-
- @param Buffer Pointer to a 16-bit value that may be unaligned.
-
- @return *Uint16
-
-**/
-UINT16
-EFIAPI
-ReadUnaligned16 (
- IN CONST UINT16 *Buffer
- )
-{
- ASSERT (Buffer != NULL);
-
- return (UINT16)(((UINT8*)Buffer)[0] | (((UINT8*)Buffer)[1] << 8));
-}
-
-/**
- Writes a 16-bit value to memory that may be unaligned.
-
- This function writes the 16-bit value specified by Value to Buffer. Value is
- returned. The function guarantees that the write operation does not produce
- an alignment fault.
-
- If the Buffer is NULL, then ASSERT().
-
- @param Buffer Pointer to a 16-bit value that may be unaligned.
- @param Value 16-bit value to write to Buffer.
-
- @return Value
-
-**/
-UINT16
-EFIAPI
-WriteUnaligned16 (
- OUT UINT16 *Buffer,
- IN UINT16 Value
- )
-{
- ASSERT (Buffer != NULL);
-
- ((UINT8*)Buffer)[0] = (UINT8)Value;
- ((UINT8*)Buffer)[1] = (UINT8)(Value >> 8);
-
- return Value;
-}
-
-/**
- Reads a 24-bit value from memory that may be unaligned.
-
- This function returns the 24-bit value pointed to by Buffer. The function
- guarantees that the read operation does not produce an alignment fault.
-
- If the Buffer is NULL, then ASSERT().
-
- @param Buffer Pointer to a 24-bit value that may be unaligned.
-
- @return The value read.
-
-**/
-UINT32
-EFIAPI
-ReadUnaligned24 (
- IN CONST UINT32 *Buffer
- )
-{
- ASSERT (Buffer != NULL);
-
- return (UINT32)(
- ReadUnaligned16 ((UINT16*)Buffer) |
- (((UINT8*)Buffer)[2] << 16)
- );
-}
-
-/**
- Writes a 24-bit value to memory that may be unaligned.
-
- This function writes the 24-bit value specified by Value to Buffer. Value is
- returned. The function guarantees that the write operation does not produce
- an alignment fault.
-
- If the Buffer is NULL, then ASSERT().
-
- @param Buffer Pointer to a 24-bit value that may be unaligned.
- @param Value 24-bit value to write to Buffer.
-
- @return The value written.
-
-**/
-UINT32
-EFIAPI
-WriteUnaligned24 (
- OUT UINT32 *Buffer,
- IN UINT32 Value
- )
-{
- ASSERT (Buffer != NULL);
-
- WriteUnaligned16 ((UINT16*)Buffer, (UINT16)Value);
- *(UINT8*)((UINT16*)Buffer + 1) = (UINT8)(Value >> 16);
- return Value;
-}
-
-/**
- Reads a 32-bit value from memory that may be unaligned.
-
- This function returns the 32-bit value pointed to by Buffer. The function
- guarantees that the read operation does not produce an alignment fault.
-
- If the Buffer is NULL, then ASSERT().
-
- @param Buffer Pointer to a 32-bit value that may be unaligned.
-
- @return *Uint32
-
-**/
-UINT32
-EFIAPI
-ReadUnaligned32 (
- IN CONST UINT32 *Buffer
- )
-{
- UINT16 LowerBytes;
- UINT16 HigherBytes;
-
- ASSERT (Buffer != NULL);
-
- LowerBytes = ReadUnaligned16 ((UINT16*) Buffer);
- HigherBytes = ReadUnaligned16 ((UINT16*) Buffer + 1);
-
- return (UINT32) (LowerBytes | (HigherBytes << 16));
-}
-
-/**
- Writes a 32-bit value to memory that may be unaligned.
-
- This function writes the 32-bit value specified by Value to Buffer. Value is
- returned. The function guarantees that the write operation does not produce
- an alignment fault.
-
- If the Buffer is NULL, then ASSERT().
-
- @param Buffer Pointer to a 32-bit value that may be unaligned.
- @param Value 32-bit value to write to Buffer.
-
- @return Value
-
-**/
-UINT32
-EFIAPI
-WriteUnaligned32 (
- OUT UINT32 *Buffer,
- IN UINT32 Value
- )
-{
- ASSERT (Buffer != NULL);
-
- WriteUnaligned16 ((UINT16*)Buffer, (UINT16)Value);
- WriteUnaligned16 ((UINT16*)Buffer + 1, (UINT16)(Value >> 16));
- return Value;
-}
-
-/**
- Reads a 64-bit value from memory that may be unaligned.
-
- This function returns the 64-bit value pointed to by Buffer. The function
- guarantees that the read operation does not produce an alignment fault.
-
- If the Buffer is NULL, then ASSERT().
-
- @param Buffer Pointer to a 64-bit value that may be unaligned.
-
- @return *Uint64
-
-**/
-UINT64
-EFIAPI
-ReadUnaligned64 (
- IN CONST UINT64 *Buffer
- )
-{
- UINT32 LowerBytes;
- UINT32 HigherBytes;
-
- ASSERT (Buffer != NULL);
-
- LowerBytes = ReadUnaligned32 ((UINT32*) Buffer);
- HigherBytes = ReadUnaligned32 ((UINT32*) Buffer + 1);
-
- return (UINT64) (LowerBytes | LShiftU64 (HigherBytes, 32));
-}
-
-/**
- Writes a 64-bit value to memory that may be unaligned.
-
- This function writes the 64-bit value specified by Value to Buffer. Value is
- returned. The function guarantees that the write operation does not produce
- an alignment fault.
-
- If the Buffer is NULL, then ASSERT().
-
- @param Buffer Pointer to a 64-bit value that may be unaligned.
- @param Value 64-bit value to write to Buffer.
-
- @return Value
-
-**/
-UINT64
-EFIAPI
-WriteUnaligned64 (
- OUT UINT64 *Buffer,
- IN UINT64 Value
- )
-{
- ASSERT (Buffer != NULL);
-
- WriteUnaligned32 ((UINT32*)Buffer, (UINT32)Value);
- WriteUnaligned32 ((UINT32*)Buffer + 1, (UINT32)RShiftU64 (Value, 32));
- return Value;
-}
|