1) Added BIT0, BIT1, …, BIT63 to the Base Defines

[mirror_edk2.git] / MdePkg / Library / BaseIoLibIntrinsic / IoHighLevel.c

diff --git a/MdePkg/Library/BaseIoLibIntrinsic/IoHighLevel.c b/MdePkg/Library/BaseIoLibIntrinsic/IoHighLevel.c
index 48a7477d81d3737c85c895ca0f215a2826c520ee..ed09b4e5aa27f7cf93854c3b018b26126f768ec8 100644 (file)
--- a/MdePkg/Library/BaseIoLibIntrinsic/IoHighLevel.c
+++ b/MdePkg/Library/BaseIoLibIntrinsic/IoHighLevel.c
@@ -48,7 +48,7 @@ IoOr8 (
   IN      UINT8                     OrData\r
   )\r
 {\r
-  return IoWrite8 (Port, IoRead8 (Port) | OrData);\r
+  return IoWrite8 (Port, (UINT8) (IoRead8 (Port) | OrData));\r
 }\r
 \r
 /**\r
@@ -76,7 +76,7 @@ IoAnd8 (
   IN      UINT8                     AndData\r
   )\r
 {\r
-  return IoWrite8 (Port, IoRead8 (Port) & AndData);\r
+  return IoWrite8 (Port, (UINT8) (IoRead8 (Port) & AndData));\r
 }\r
 \r
 /**\r
@@ -107,7 +107,7 @@ IoAndThenOr8 (
   IN      UINT8                     OrData\r
   )\r
 {\r
-  return IoWrite8 (Port, (IoRead8 (Port) & AndData) | OrData);\r
+  return IoWrite8 (Port, (UINT8) ((IoRead8 (Port) & AndData) | OrData));\r
 }\r
 \r
 /**\r
@@ -119,7 +119,7 @@ IoAndThenOr8 (
   If 8-bit I/O port operations are not supported, then ASSERT().\r
   If StartBit is greater than 7, then ASSERT().\r
   If EndBit is greater than 7, then ASSERT().\r
-  If EndBit is less than or equal to StartBit, then ASSERT().\r
+  If EndBit is less than StartBit, then ASSERT().\r
 \r
   @param  Port      The I/O port to read.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -152,7 +152,7 @@ IoBitFieldRead8 (
   If 8-bit I/O port operations are not supported, then ASSERT().\r
   If StartBit is greater than 7, then ASSERT().\r
   If EndBit is greater than 7, then ASSERT().\r
-  If EndBit is less than or equal to StartBit, then ASSERT().\r
+  If EndBit is less than StartBit, then ASSERT().\r
 \r
   @param  Port      The I/O port to write.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -192,7 +192,7 @@ IoBitFieldWrite8 (
   If 8-bit I/O port operations are not supported, then ASSERT().\r
   If StartBit is greater than 7, then ASSERT().\r
   If EndBit is greater than 7, then ASSERT().\r
-  If EndBit is less than or equal to StartBit, then ASSERT().\r
+  If EndBit is less than StartBit, then ASSERT().\r
 \r
   @param  Port      The I/O port to write.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -232,7 +232,7 @@ IoBitFieldOr8 (
   If 8-bit I/O port operations are not supported, then ASSERT().\r
   If StartBit is greater than 7, then ASSERT().\r
   If EndBit is greater than 7, then ASSERT().\r
-  If EndBit is less than or equal to StartBit, then ASSERT().\r
+  If EndBit is less than StartBit, then ASSERT().\r
 \r
   @param  Port      The I/O port to write.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -274,7 +274,7 @@ IoBitFieldAnd8 (
   If 8-bit I/O port operations are not supported, then ASSERT().\r
   If StartBit is greater than 7, then ASSERT().\r
   If EndBit is greater than 7, then ASSERT().\r
-  If EndBit is less than or equal to StartBit, then ASSERT().\r
+  If EndBit is less than StartBit, then ASSERT().\r
 \r
   @param  Port      The I/O port to write.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -328,7 +328,7 @@ IoOr16 (
   IN      UINT16                    OrData\r
   )\r
 {\r
-  return IoWrite16 (Port, IoRead16 (Port) | OrData);\r
+  return IoWrite16 (Port, (UINT16) (IoRead16 (Port) | OrData));\r
 }\r
 \r
 /**\r
@@ -356,7 +356,7 @@ IoAnd16 (
   IN      UINT16                    AndData\r
   )\r
 {\r
-  return IoWrite16 (Port, IoRead16 (Port) & AndData);\r
+  return IoWrite16 (Port, (UINT16) (IoRead16 (Port) & AndData));\r
 }\r
 \r
 /**\r
@@ -387,7 +387,7 @@ IoAndThenOr16 (
   IN      UINT16                    OrData\r
   )\r
 {\r
-  return IoWrite16 (Port, (IoRead16 (Port) & AndData) | OrData);\r
+  return IoWrite16 (Port, (UINT16) ((IoRead16 (Port) & AndData) | OrData));\r
 }\r
 \r
 /**\r
@@ -399,7 +399,7 @@ IoAndThenOr16 (
   If 16-bit I/O port operations are not supported, then ASSERT().\r
   If StartBit is greater than 15, then ASSERT().\r
   If EndBit is greater than 15, then ASSERT().\r
-  If EndBit is less than or equal to StartBit, then ASSERT().\r
+  If EndBit is less than StartBit, then ASSERT().\r
 \r
   @param  Port      The I/O port to read.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -432,7 +432,7 @@ IoBitFieldRead16 (
   If 16-bit I/O port operations are not supported, then ASSERT().\r
   If StartBit is greater than 15, then ASSERT().\r
   If EndBit is greater than 15, then ASSERT().\r
-  If EndBit is less than or equal to StartBit, then ASSERT().\r
+  If EndBit is less than StartBit, then ASSERT().\r
 \r
   @param  Port      The I/O port to write.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -472,7 +472,7 @@ IoBitFieldWrite16 (
   If 16-bit I/O port operations are not supported, then ASSERT().\r
   If StartBit is greater than 15, then ASSERT().\r
   If EndBit is greater than 15, then ASSERT().\r
-  If EndBit is less than or equal to StartBit, then ASSERT().\r
+  If EndBit is less than StartBit, then ASSERT().\r
 \r
   @param  Port      The I/O port to write.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -512,7 +512,7 @@ IoBitFieldOr16 (
   If 16-bit I/O port operations are not supported, then ASSERT().\r
   If StartBit is greater than 15, then ASSERT().\r
   If EndBit is greater than 15, then ASSERT().\r
-  If EndBit is less than or equal to StartBit, then ASSERT().\r
+  If EndBit is less than StartBit, then ASSERT().\r
 \r
   @param  Port      The I/O port to write.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -554,7 +554,7 @@ IoBitFieldAnd16 (
   If 16-bit I/O port operations are not supported, then ASSERT().\r
   If StartBit is greater than 15, then ASSERT().\r
   If EndBit is greater than 15, then ASSERT().\r
-  If EndBit is less than or equal to StartBit, then ASSERT().\r
+  If EndBit is less than StartBit, then ASSERT().\r
 \r
   @param  Port      The I/O port to write.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -679,7 +679,7 @@ IoAndThenOr32 (
   If 32-bit I/O port operations are not supported, then ASSERT().\r
   If StartBit is greater than 31, then ASSERT().\r
   If EndBit is greater than 31, then ASSERT().\r
-  If EndBit is less than or equal to StartBit, then ASSERT().\r
+  If EndBit is less than StartBit, then ASSERT().\r
 \r
   @param  Port      The I/O port to read.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -712,7 +712,7 @@ IoBitFieldRead32 (
   If 32-bit I/O port operations are not supported, then ASSERT().\r
   If StartBit is greater than 31, then ASSERT().\r
   If EndBit is greater than 31, then ASSERT().\r
-  If EndBit is less than or equal to StartBit, then ASSERT().\r
+  If EndBit is less than StartBit, then ASSERT().\r
 \r
   @param  Port      The I/O port to write.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -752,7 +752,7 @@ IoBitFieldWrite32 (
   If 32-bit I/O port operations are not supported, then ASSERT().\r
   If StartBit is greater than 31, then ASSERT().\r
   If EndBit is greater than 31, then ASSERT().\r
-  If EndBit is less than or equal to StartBit, then ASSERT().\r
+  If EndBit is less than StartBit, then ASSERT().\r
 \r
   @param  Port      The I/O port to write.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -792,7 +792,7 @@ IoBitFieldOr32 (
   If 32-bit I/O port operations are not supported, then ASSERT().\r
   If StartBit is greater than 31, then ASSERT().\r
   If EndBit is greater than 31, then ASSERT().\r
-  If EndBit is less than or equal to StartBit, then ASSERT().\r
+  If EndBit is less than StartBit, then ASSERT().\r
 \r
   @param  Port      The I/O port to write.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -834,7 +834,7 @@ IoBitFieldAnd32 (
   If 32-bit I/O port operations are not supported, then ASSERT().\r
   If StartBit is greater than 31, then ASSERT().\r
   If EndBit is greater than 31, then ASSERT().\r
-  If EndBit is less than or equal to StartBit, then ASSERT().\r
+  If EndBit is less than StartBit, then ASSERT().\r
 \r
   @param  Port      The I/O port to write.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -959,7 +959,7 @@ IoAndThenOr64 (
   If 64-bit I/O port operations are not supported, then ASSERT().\r
   If StartBit is greater than 63, then ASSERT().\r
   If EndBit is greater than 63, then ASSERT().\r
-  If EndBit is less than or equal to StartBit, then ASSERT().\r
+  If EndBit is less than StartBit, then ASSERT().\r
 \r
   @param  Port      The I/O port to read.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -992,7 +992,7 @@ IoBitFieldRead64 (
   If 64-bit I/O port operations are not supported, then ASSERT().\r
   If StartBit is greater than 63, then ASSERT().\r
   If EndBit is greater than 63, then ASSERT().\r
-  If EndBit is less than or equal to StartBit, then ASSERT().\r
+  If EndBit is less than StartBit, then ASSERT().\r
 \r
   @param  Port      The I/O port to write.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -1032,7 +1032,7 @@ IoBitFieldWrite64 (
   If 64-bit I/O port operations are not supported, then ASSERT().\r
   If StartBit is greater than 63, then ASSERT().\r
   If EndBit is greater than 63, then ASSERT().\r
-  If EndBit is less than or equal to StartBit, then ASSERT().\r
+  If EndBit is less than StartBit, then ASSERT().\r
 \r
   @param  Port      The I/O port to write.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -1072,7 +1072,7 @@ IoBitFieldOr64 (
   If 64-bit I/O port operations are not supported, then ASSERT().\r
   If StartBit is greater than 63, then ASSERT().\r
   If EndBit is greater than 63, then ASSERT().\r
-  If EndBit is less than or equal to StartBit, then ASSERT().\r
+  If EndBit is less than StartBit, then ASSERT().\r
 \r
   @param  Port      The I/O port to write.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -1114,7 +1114,7 @@ IoBitFieldAnd64 (
   If 64-bit I/O port operations are not supported, then ASSERT().\r
   If StartBit is greater than 63, then ASSERT().\r
   If EndBit is greater than 63, then ASSERT().\r
-  If EndBit is less than or equal to StartBit, then ASSERT().\r
+  If EndBit is less than StartBit, then ASSERT().\r
 \r
   @param  Port      The I/O port to write.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -1168,7 +1168,7 @@ MmioOr8 (
   IN      UINT8                     OrData\r
   )\r
 {\r
-  return MmioWrite8 (Address, MmioRead8 (Address) | OrData);\r
+  return MmioWrite8 (Address, (UINT8) (MmioRead8 (Address) | OrData));\r
 }\r
 \r
 /**\r
@@ -1196,7 +1196,7 @@ MmioAnd8 (
   IN      UINT8                     AndData\r
   )\r
 {\r
-  return MmioWrite8 (Address, MmioRead8 (Address) & AndData);\r
+  return MmioWrite8 (Address, (UINT8) (MmioRead8 (Address) & AndData));\r
 }\r
 \r
 /**\r
@@ -1228,7 +1228,7 @@ MmioAndThenOr8 (
   IN      UINT8                     OrData\r
   )\r
 {\r
-  return MmioWrite8 (Address, (MmioRead8 (Address) & AndData) | OrData);\r
+  return MmioWrite8 (Address, (UINT8) ((MmioRead8 (Address) & AndData) | OrData));\r
 }\r
 \r
 /**\r
@@ -1240,7 +1240,7 @@ MmioAndThenOr8 (
   If 8-bit MMIO register operations are not supported, then ASSERT().\r
   If StartBit is greater than 7, then ASSERT().\r
   If EndBit is greater than 7, then ASSERT().\r
-  If EndBit is less than or equal to StartBit, then ASSERT().\r
+  If EndBit is less than StartBit, then ASSERT().\r
 \r
   @param  Address   MMIO register to read.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -1272,7 +1272,7 @@ MmioBitFieldRead8 (
   If 8-bit MMIO register operations are not supported, then ASSERT().\r
   If StartBit is greater than 7, then ASSERT().\r
   If EndBit is greater than 7, then ASSERT().\r
-  If EndBit is less than or equal to StartBit, then ASSERT().\r
+  If EndBit is less than StartBit, then ASSERT().\r
 \r
   @param  Address   MMIO register to write.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -1313,7 +1313,7 @@ MmioBitFieldWrite8 (
   If 8-bit MMIO register operations are not supported, then ASSERT().\r
   If StartBit is greater than 7, then ASSERT().\r
   If EndBit is greater than 7, then ASSERT().\r
-  If EndBit is less than or equal to StartBit, then ASSERT().\r
+  If EndBit is less than StartBit, then ASSERT().\r
 \r
   @param  Address   MMIO register to write.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -1354,7 +1354,7 @@ MmioBitFieldOr8 (
   If 8-bit MMIO register operations are not supported, then ASSERT().\r
   If StartBit is greater than 7, then ASSERT().\r
   If EndBit is greater than 7, then ASSERT().\r
-  If EndBit is less than or equal to StartBit, then ASSERT().\r
+  If EndBit is less than StartBit, then ASSERT().\r
 \r
   @param  Address   MMIO register to write.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -1396,7 +1396,7 @@ MmioBitFieldAnd8 (
   If 8-bit MMIO register operations are not supported, then ASSERT().\r
   If StartBit is greater than 7, then ASSERT().\r
   If EndBit is greater than 7, then ASSERT().\r
-  If EndBit is less than or equal to StartBit, then ASSERT().\r
+  If EndBit is less than StartBit, then ASSERT().\r
 \r
   @param  Address   MMIO register to write.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -1450,7 +1450,7 @@ MmioOr16 (
   IN      UINT16                    OrData\r
   )\r
 {\r
-  return MmioWrite16 (Address, MmioRead16 (Address) | OrData);\r
+  return MmioWrite16 (Address, (UINT16) (MmioRead16 (Address) | OrData));\r
 }\r
 \r
 /**\r
@@ -1478,7 +1478,7 @@ MmioAnd16 (
   IN      UINT16                    AndData\r
   )\r
 {\r
-  return MmioWrite16 (Address, MmioRead16 (Address) & AndData);\r
+  return MmioWrite16 (Address, (UINT16) (MmioRead16 (Address) & AndData));\r
 }\r
 \r
 /**\r
@@ -1510,7 +1510,7 @@ MmioAndThenOr16 (
   IN      UINT16                    OrData\r
   )\r
 {\r
-  return MmioWrite16 (Address, (MmioRead16 (Address) & AndData) | OrData);\r
+  return MmioWrite16 (Address, (UINT16) ((MmioRead16 (Address) & AndData) | OrData));\r
 }\r
 \r
 /**\r
@@ -1522,7 +1522,7 @@ MmioAndThenOr16 (
   If 16-bit MMIO register operations are not supported, then ASSERT().\r
   If StartBit is greater than 15, then ASSERT().\r
   If EndBit is greater than 15, then ASSERT().\r
-  If EndBit is less than or equal to StartBit, then ASSERT().\r
+  If EndBit is less than StartBit, then ASSERT().\r
 \r
   @param  Address   MMIO register to read.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -1554,7 +1554,7 @@ MmioBitFieldRead16 (
   If 16-bit MMIO register operations are not supported, then ASSERT().\r
   If StartBit is greater than 15, then ASSERT().\r
   If EndBit is greater than 15, then ASSERT().\r
-  If EndBit is less than or equal to StartBit, then ASSERT().\r
+  If EndBit is less than StartBit, then ASSERT().\r
 \r
   @param  Address   MMIO register to write.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -1595,7 +1595,7 @@ MmioBitFieldWrite16 (
   If 16-bit MMIO register operations are not supported, then ASSERT().\r
   If StartBit is greater than 15, then ASSERT().\r
   If EndBit is greater than 15, then ASSERT().\r
-  If EndBit is less than or equal to StartBit, then ASSERT().\r
+  If EndBit is less than StartBit, then ASSERT().\r
 \r
   @param  Address   MMIO register to write.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -1636,7 +1636,7 @@ MmioBitFieldOr16 (
   If 16-bit MMIO register operations are not supported, then ASSERT().\r
   If StartBit is greater than 15, then ASSERT().\r
   If EndBit is greater than 15, then ASSERT().\r
-  If EndBit is less than or equal to StartBit, then ASSERT().\r
+  If EndBit is less than StartBit, then ASSERT().\r
 \r
   @param  Address   MMIO register to write.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -1678,7 +1678,7 @@ MmioBitFieldAnd16 (
   If 16-bit MMIO register operations are not supported, then ASSERT().\r
   If StartBit is greater than 15, then ASSERT().\r
   If EndBit is greater than 15, then ASSERT().\r
-  If EndBit is less than or equal to StartBit, then ASSERT().\r
+  If EndBit is less than StartBit, then ASSERT().\r
 \r
   @param  Address   MMIO register to write.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -1804,7 +1804,7 @@ MmioAndThenOr32 (
   If 32-bit MMIO register operations are not supported, then ASSERT().\r
   If StartBit is greater than 31, then ASSERT().\r
   If EndBit is greater than 31, then ASSERT().\r
-  If EndBit is less than or equal to StartBit, then ASSERT().\r
+  If EndBit is less than StartBit, then ASSERT().\r
 \r
   @param  Address   MMIO register to read.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -1836,7 +1836,7 @@ MmioBitFieldRead32 (
   If 32-bit MMIO register operations are not supported, then ASSERT().\r
   If StartBit is greater than 31, then ASSERT().\r
   If EndBit is greater than 31, then ASSERT().\r
-  If EndBit is less than or equal to StartBit, then ASSERT().\r
+  If EndBit is less than StartBit, then ASSERT().\r
 \r
   @param  Address   MMIO register to write.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -1877,7 +1877,7 @@ MmioBitFieldWrite32 (
   If 32-bit MMIO register operations are not supported, then ASSERT().\r
   If StartBit is greater than 31, then ASSERT().\r
   If EndBit is greater than 31, then ASSERT().\r
-  If EndBit is less than or equal to StartBit, then ASSERT().\r
+  If EndBit is less than StartBit, then ASSERT().\r
 \r
   @param  Address   MMIO register to write.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -1918,7 +1918,7 @@ MmioBitFieldOr32 (
   If 32-bit MMIO register operations are not supported, then ASSERT().\r
   If StartBit is greater than 31, then ASSERT().\r
   If EndBit is greater than 31, then ASSERT().\r
-  If EndBit is less than or equal to StartBit, then ASSERT().\r
+  If EndBit is less than StartBit, then ASSERT().\r
 \r
   @param  Address   MMIO register to write.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -1960,7 +1960,7 @@ MmioBitFieldAnd32 (
   If 32-bit MMIO register operations are not supported, then ASSERT().\r
   If StartBit is greater than 31, then ASSERT().\r
   If EndBit is greater than 31, then ASSERT().\r
-  If EndBit is less than or equal to StartBit, then ASSERT().\r
+  If EndBit is less than StartBit, then ASSERT().\r
 \r
   @param  Address   MMIO register to write.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -2086,7 +2086,7 @@ MmioAndThenOr64 (
   If 64-bit MMIO register operations are not supported, then ASSERT().\r
   If StartBit is greater than 63, then ASSERT().\r
   If EndBit is greater than 63, then ASSERT().\r
-  If EndBit is less than or equal to StartBit, then ASSERT().\r
+  If EndBit is less than StartBit, then ASSERT().\r
 \r
   @param  Address   MMIO register to read.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -2118,7 +2118,7 @@ MmioBitFieldRead64 (
   If 64-bit MMIO register operations are not supported, then ASSERT().\r
   If StartBit is greater than 63, then ASSERT().\r
   If EndBit is greater than 63, then ASSERT().\r
-  If EndBit is less than or equal to StartBit, then ASSERT().\r
+  If EndBit is less than StartBit, then ASSERT().\r
 \r
   @param  Address   MMIO register to write.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -2159,7 +2159,7 @@ MmioBitFieldWrite64 (
   If 64-bit MMIO register operations are not supported, then ASSERT().\r
   If StartBit is greater than 63, then ASSERT().\r
   If EndBit is greater than 63, then ASSERT().\r
-  If EndBit is less than or equal to StartBit, then ASSERT().\r
+  If EndBit is less than StartBit, then ASSERT().\r
 \r
   @param  Address   MMIO register to write.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -2200,7 +2200,7 @@ MmioBitFieldOr64 (
   If 64-bit MMIO register operations are not supported, then ASSERT().\r
   If StartBit is greater than 63, then ASSERT().\r
   If EndBit is greater than 63, then ASSERT().\r
-  If EndBit is less than or equal to StartBit, then ASSERT().\r
+  If EndBit is less than StartBit, then ASSERT().\r
 \r
   @param  Address   MMIO register to write.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r
@@ -2242,7 +2242,7 @@ MmioBitFieldAnd64 (
   If 64-bit MMIO register operations are not supported, then ASSERT().\r
   If StartBit is greater than 63, then ASSERT().\r
   If EndBit is greater than 63, then ASSERT().\r
-  If EndBit is less than or equal to StartBit, then ASSERT().\r
+  If EndBit is less than StartBit, then ASSERT().\r
 \r
   @param  Address   MMIO register to write.\r
   @param  StartBit  The ordinal of the least significant bit in the bit field.\r