/** @file\r
Bit field functions of BaseLib.\r
\r
- Copyright (c) 2006, Intel Corporation<BR>\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
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
\r
- Module Name: BitField.c\r
-\r
**/\r
\r
+#include "BaseLibInternals.h"\r
+\r
/**\r
Worker function that returns a bit field from Operand\r
\r
@return The bit field read.\r
\r
**/\r
-unsigned int\r
+UINTN\r
+EFIAPI\r
BitFieldReadUint (\r
- IN unsigned int Operand,\r
+ IN UINTN Operand,\r
IN UINTN StartBit,\r
IN UINTN EndBit\r
)\r
{\r
//\r
- // ~((unsigned int)-2 << EndBit) is a mask in which bit[0] thru bit[EndBit]\r
+ // ~((UINTN)-2 << EndBit) is a mask in which bit[0] thru bit[EndBit]\r
// are 1's while bit[EndBit + 1] thru the most significant bit are 0's.\r
//\r
- return (Operand & ~((unsigned int)-2 << EndBit)) >> StartBit;\r
+ return (Operand & ~((UINTN)-2 << EndBit)) >> StartBit;\r
}\r
\r
/**\r
@return The new value.\r
\r
**/\r
-unsigned int\r
+UINTN\r
+EFIAPI\r
BitFieldOrUint (\r
- IN unsigned int Operand,\r
+ IN UINTN Operand,\r
IN UINTN StartBit,\r
IN UINTN EndBit,\r
- IN unsigned int OrData\r
+ IN UINTN OrData\r
)\r
{\r
//\r
- // ~((unsigned int)-2 << EndBit) is a mask in which bit[0] thru bit[EndBit]\r
+ // ~((UINTN)-2 << EndBit) is a mask in which bit[0] thru bit[EndBit]\r
// are 1's while bit[EndBit + 1] thru the most significant bit are 0's.\r
//\r
- return Operand | ((OrData << StartBit) & ~((unsigned int) -2 << EndBit));\r
+ return Operand | ((OrData << StartBit) & ~((UINTN) -2 << EndBit));\r
}\r
\r
/**\r
@return The new value.\r
\r
**/\r
-unsigned int\r
+UINTN\r
+EFIAPI\r
BitFieldAndUint (\r
- IN unsigned int Operand,\r
+ IN UINTN Operand,\r
IN UINTN StartBit,\r
IN UINTN EndBit,\r
- IN unsigned int AndData\r
+ IN UINTN AndData\r
)\r
{\r
//\r
- // ~((unsigned int)-2 << EndBit) is a mask in which bit[0] thru bit[EndBit]\r
+ // ~((UINTN)-2 << EndBit) is a mask in which bit[0] thru bit[EndBit]\r
// are 1's while bit[EndBit + 1] thru the most significant bit are 0's.\r
//\r
- return Operand & ~((~AndData << StartBit) & ~((unsigned int) -2 << EndBit));\r
+ return Operand & ~((~AndData << StartBit) & ~((UINTN)-2 << EndBit));\r
}\r
\r
/**\r
IN UINTN EndBit\r
)\r
{\r
- ASSERT (EndBit < sizeof (Operand) * 8);\r
+ ASSERT (EndBit < 8);\r
ASSERT (StartBit <= EndBit);\r
return (UINT8)BitFieldReadUint (Operand, StartBit, EndBit);\r
}\r
IN UINT8 Value\r
)\r
{\r
- ASSERT (EndBit < sizeof (Operand) * 8);\r
+ ASSERT (EndBit < 8);\r
ASSERT (StartBit <= EndBit);\r
return BitFieldAndThenOr8 (Operand, StartBit, EndBit, 0, Value);\r
}\r
IN UINT8 OrData\r
)\r
{\r
- ASSERT (EndBit < sizeof (Operand) * 8);\r
+ ASSERT (EndBit < 8);\r
ASSERT (StartBit <= EndBit);\r
return (UINT8)BitFieldOrUint (Operand, StartBit, EndBit, OrData);\r
}\r
IN UINT8 AndData\r
)\r
{\r
- ASSERT (EndBit < sizeof (Operand) * 8);\r
+ ASSERT (EndBit < 8);\r
ASSERT (StartBit <= EndBit);\r
return (UINT8)BitFieldAndUint (Operand, StartBit, EndBit, AndData);\r
}\r
IN UINT8 OrData\r
)\r
{\r
- ASSERT (EndBit < sizeof (Operand) * 8);\r
+ ASSERT (EndBit < 8);\r
ASSERT (StartBit <= EndBit);\r
return BitFieldOr8 (\r
BitFieldAnd8 (Operand, StartBit, EndBit, AndData),\r
IN UINTN EndBit\r
)\r
{\r
- ASSERT (EndBit < sizeof (Operand) * 8);\r
+ ASSERT (EndBit < 16);\r
ASSERT (StartBit <= EndBit);\r
return (UINT16)BitFieldReadUint (Operand, StartBit, EndBit);\r
}\r
IN UINT16 Value\r
)\r
{\r
- ASSERT (EndBit < sizeof (Operand) * 8);\r
+ ASSERT (EndBit < 16);\r
ASSERT (StartBit <= EndBit);\r
return BitFieldAndThenOr16 (Operand, StartBit, EndBit, 0, Value);\r
}\r
IN UINT16 OrData\r
)\r
{\r
- ASSERT (EndBit < sizeof (Operand) * 8);\r
+ ASSERT (EndBit < 16);\r
ASSERT (StartBit <= EndBit);\r
return (UINT16)BitFieldOrUint (Operand, StartBit, EndBit, OrData);\r
}\r
IN UINT16 AndData\r
)\r
{\r
- ASSERT (EndBit < sizeof (Operand) * 8);\r
+ ASSERT (EndBit < 16);\r
ASSERT (StartBit <= EndBit);\r
return (UINT16)BitFieldAndUint (Operand, StartBit, EndBit, AndData);\r
}\r
IN UINT16 OrData\r
)\r
{\r
- ASSERT (EndBit < sizeof (Operand) * 8);\r
+ ASSERT (EndBit < 16);\r
ASSERT (StartBit <= EndBit);\r
return BitFieldOr16 (\r
BitFieldAnd16 (Operand, StartBit, EndBit, AndData),\r
IN UINTN EndBit\r
)\r
{\r
- ASSERT (EndBit < sizeof (Operand) * 8);\r
+ ASSERT (EndBit < 32);\r
ASSERT (StartBit <= EndBit);\r
return (UINT32)BitFieldReadUint (Operand, StartBit, EndBit);\r
}\r
IN UINT32 Value\r
)\r
{\r
- ASSERT (EndBit < sizeof (Operand) * 8);\r
+ ASSERT (EndBit < 32);\r
ASSERT (StartBit <= EndBit);\r
return BitFieldAndThenOr32 (Operand, StartBit, EndBit, 0, Value);\r
}\r
IN UINT32 OrData\r
)\r
{\r
- ASSERT (EndBit < sizeof (Operand) * 8);\r
+ ASSERT (EndBit < 32);\r
ASSERT (StartBit <= EndBit);\r
return (UINT32)BitFieldOrUint (Operand, StartBit, EndBit, OrData);\r
}\r
IN UINT32 AndData\r
)\r
{\r
- ASSERT (EndBit < sizeof (Operand) * 8);\r
+ ASSERT (EndBit < 32);\r
ASSERT (StartBit <= EndBit);\r
return (UINT32)BitFieldAndUint (Operand, StartBit, EndBit, AndData);\r
}\r
IN UINT32 OrData\r
)\r
{\r
- ASSERT (EndBit < sizeof (Operand) * 8);\r
+ ASSERT (EndBit < 32);\r
ASSERT (StartBit <= EndBit);\r
return BitFieldOr32 (\r
BitFieldAnd32 (Operand, StartBit, EndBit, AndData),\r
IN UINTN EndBit\r
)\r
{\r
- ASSERT (EndBit < sizeof (Operand) * 8);\r
+ ASSERT (EndBit < 64);\r
ASSERT (StartBit <= EndBit);\r
return RShiftU64 (Operand & ~LShiftU64 ((UINT64)-2, EndBit), StartBit);\r
}\r
IN UINT64 Value\r
)\r
{\r
- ASSERT (EndBit < sizeof (Operand) * 8);\r
+ ASSERT (EndBit < 64);\r
ASSERT (StartBit <= EndBit);\r
return BitFieldAndThenOr64 (Operand, StartBit, EndBit, 0, Value);\r
}\r
IN UINT64 OrData\r
)\r
{\r
- ASSERT (EndBit < sizeof (Operand) * 8);\r
+ UINT64 Value1;\r
+ UINT64 Value2;\r
+\r
+ ASSERT (EndBit < 64);\r
ASSERT (StartBit <= EndBit);\r
- return Operand |\r
- (LShiftU64 (OrData, StartBit) & ~LShiftU64 ((UINT64)-2, EndBit));\r
+\r
+ Value1 = LShiftU64 (OrData, StartBit);\r
+ Value2 = LShiftU64 ((UINT64) - 2, EndBit);\r
+\r
+ return Operand | (Value1 & ~Value2);\r
}\r
\r
/**\r
IN UINT64 AndData\r
)\r
{\r
- ASSERT (EndBit < sizeof (Operand) * 8);\r
+ UINT64 Value1;\r
+ UINT64 Value2;\r
+ \r
+ ASSERT (EndBit < 64);\r
ASSERT (StartBit <= EndBit);\r
- return Operand &\r
- ~(LShiftU64 (~AndData, StartBit) & ~LShiftU64 ((UINT64)-2, EndBit));\r
+\r
+ Value1 = LShiftU64 (~AndData, StartBit);\r
+ Value2 = LShiftU64 ((UINT64)-2, EndBit);\r
+\r
+ return Operand & ~(Value1 & ~Value2);\r
}\r
\r
/**\r
IN UINT64 OrData\r
)\r
{\r
- ASSERT (EndBit < sizeof (Operand) * 8);\r
+ ASSERT (EndBit < 64);\r
ASSERT (StartBit <= EndBit);\r
return BitFieldOr64 (\r
BitFieldAnd64 (Operand, StartBit, EndBit, AndData),\r