Ported the EBC driver to use the MDE Base Math lib functions. Removed math functions from EBC driver. Need to check to see if MDE Math lib ASSERT behavior will cause any issues with EBC driver?
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@1814 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
ajfish
@@ -1,451 +0,0 @@
|
||||
/*++
|
||||
|
||||
Copyright (c) 2006, Intel Corporation.
|
||||
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:
|
||||
|
||||
x64math.c
|
||||
|
||||
Abstract:
|
||||
|
||||
Math routines for x64.
|
||||
|
||||
--*/
|
||||
|
||||
UINT64
|
||||
LeftShiftU64 (
|
||||
IN UINT64 Operand,
|
||||
IN UINT64 Count
|
||||
)
|
||||
/*++
|
||||
|
||||
Routine Description:
|
||||
|
||||
Left-shift a 64 bit value.
|
||||
|
||||
Arguments:
|
||||
|
||||
Operand - 64-bit value to shift
|
||||
Count - shift count
|
||||
|
||||
Returns:
|
||||
|
||||
Operand << Count
|
||||
|
||||
--*/
|
||||
{
|
||||
if (Count > 63) {
|
||||
return 0;
|
||||
}
|
||||
|
||||
return Operand << Count;
|
||||
}
|
||||
|
||||
UINT64
|
||||
RightShiftU64 (
|
||||
IN UINT64 Operand,
|
||||
IN UINT64 Count
|
||||
)
|
||||
/*++
|
||||
|
||||
Routine Description:
|
||||
|
||||
Right-shift a 64 bit value.
|
||||
|
||||
Arguments:
|
||||
|
||||
Operand - 64-bit value to shift
|
||||
Count - shift count
|
||||
|
||||
Returns:
|
||||
|
||||
Operand >> Count
|
||||
|
||||
--*/
|
||||
{
|
||||
if (Count > 63) {
|
||||
return 0;
|
||||
}
|
||||
|
||||
return Operand >> Count;
|
||||
}
|
||||
|
||||
INT64
|
||||
ARightShift64 (
|
||||
IN INT64 Operand,
|
||||
IN UINT64 Count
|
||||
)
|
||||
/*++
|
||||
|
||||
Routine Description:
|
||||
|
||||
Right-shift a 64 bit signed value.
|
||||
|
||||
Arguments:
|
||||
|
||||
Operand - 64-bit value to shift
|
||||
Count - shift count
|
||||
|
||||
Returns:
|
||||
|
||||
Operand >> Count
|
||||
|
||||
--*/
|
||||
{
|
||||
if (Count > 63) {
|
||||
|
||||
if (Operand & 0x8000000000000000ULL) {
|
||||
return (INT64)~0;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
return Operand >> Count;
|
||||
}
|
||||
|
||||
#if 0
|
||||
//
|
||||
// The compiler generates true assembly for these, so we don't need them.
|
||||
//
|
||||
INT32
|
||||
ARightShift32 (
|
||||
IN INT32 Operand,
|
||||
IN UINTN Count
|
||||
)
|
||||
/*++
|
||||
|
||||
Routine Description:
|
||||
|
||||
Right shift a 32-bit value
|
||||
|
||||
Arguments:
|
||||
|
||||
Operand - value to shift
|
||||
Count - shift count
|
||||
|
||||
Returns:
|
||||
|
||||
Operand >> Count
|
||||
|
||||
--*/
|
||||
{
|
||||
return Operand >> (Count & 0x1f);
|
||||
}
|
||||
|
||||
INT32
|
||||
MulS32x32 (
|
||||
INT32 Value1,
|
||||
INT32 Value2,
|
||||
INT32 *ResultHigh
|
||||
)
|
||||
/*++
|
||||
|
||||
Routine Description:
|
||||
|
||||
Multiply two signed 32-bit numbers.
|
||||
|
||||
Arguments:
|
||||
|
||||
Value1 - first value to multiply
|
||||
Value2 - value to multiply Value1 by
|
||||
ResultHigh - overflow
|
||||
|
||||
Returns:
|
||||
|
||||
Value1 * Value2
|
||||
|
||||
Notes:
|
||||
|
||||
The 64-bit result is the concatenation of *ResultHigh and the return value
|
||||
|
||||
The product fits in 32 bits if
|
||||
(*ResultHigh == 0x00000000 AND *ResultLow_bit31 == 0)
|
||||
OR
|
||||
(*ResultHigh == 0xffffffff AND *ResultLow_bit31 == 1)
|
||||
|
||||
--*/
|
||||
{
|
||||
INT64 Rres64;
|
||||
INT32 Result;
|
||||
|
||||
Res64 = (INT64) Value1 * (INT64) Value2;
|
||||
*ResultHigh = (Res64 >> 32) & 0xffffffff;
|
||||
Result = Res64 & 0xffffffff;
|
||||
return Result;
|
||||
}
|
||||
|
||||
UINT32
|
||||
MulU32x32 (
|
||||
UINT32 Value1,
|
||||
UINT32 Value2,
|
||||
UINT32 *ResultHigh
|
||||
)
|
||||
/*++
|
||||
|
||||
Routine Description:
|
||||
|
||||
Multiply two unsigned 32-bit values.
|
||||
|
||||
Arguments:
|
||||
|
||||
Value1 - first number
|
||||
Value2 - number to multiply by Value1
|
||||
ResultHigh - overflow
|
||||
|
||||
Returns:
|
||||
|
||||
Value1 * Value2
|
||||
|
||||
Notes:
|
||||
|
||||
The 64-bit result is the concatenation of *ResultHigh and the return value.
|
||||
The product fits in 32 bits if *ResultHigh == 0x00000000
|
||||
|
||||
--*/
|
||||
{
|
||||
UINT64 Res64;
|
||||
UINT32 Result;
|
||||
|
||||
Res64 = (INT64) Value1 * (INT64) Value2;
|
||||
*ResultHigh = (Res64 >> 32) & 0xffffffff;
|
||||
Result = Res64 & 0xffffffff;
|
||||
return Result;
|
||||
}
|
||||
|
||||
INT32
|
||||
DivS32x32 (
|
||||
INT32 Value1,
|
||||
INT32 Value2,
|
||||
INT32 *Remainder,
|
||||
UINTN *error
|
||||
)
|
||||
//
|
||||
// signed 32-bit by signed 32-bit divide; the 32-bit remainder is
|
||||
// in *Remainder and the quotient is the return value; *error = 1 if the
|
||||
// divisor is 0, and it is 1 otherwise
|
||||
//
|
||||
{
|
||||
INT32 Result;
|
||||
|
||||
*error = 0;
|
||||
|
||||
if (Value2 == 0x0) {
|
||||
*error = 1;
|
||||
Result = 0x80000000;
|
||||
*Remainder = 0x80000000;
|
||||
} else {
|
||||
Result = Value1 / Value2;
|
||||
*Remainder = Value1 - Result * Value2;
|
||||
}
|
||||
|
||||
return Result;
|
||||
}
|
||||
|
||||
UINT32
|
||||
DivU32x32 (
|
||||
UINT32 Value1,
|
||||
UINT32 Value2,
|
||||
UINT32 *Remainder,
|
||||
UINTN *Error
|
||||
)
|
||||
//
|
||||
// unsigned 32-bit by unsigned 32-bit divide; the 32-bit remainder is
|
||||
// in *Remainder and the quotient is the return value; *error = 1 if the
|
||||
// divisor is 0, and it is 1 otherwise
|
||||
//
|
||||
{
|
||||
UINT32 Result;
|
||||
|
||||
*Error = 0;
|
||||
|
||||
if (Value2 == 0x0) {
|
||||
*Error = 1;
|
||||
Result = 0x80000000;
|
||||
*Remainder = 0x80000000;
|
||||
} else {
|
||||
Result = Value1 / Value2;
|
||||
*Remainder = Value1 - Result * Value2;
|
||||
}
|
||||
|
||||
return Result;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
INT64
|
||||
MulS64x64 (
|
||||
INT64 Value1,
|
||||
INT64 Value2,
|
||||
INT64 *ResultHigh
|
||||
)
|
||||
/*++
|
||||
|
||||
Routine Description:
|
||||
|
||||
Multiply two signed 32-bit numbers.
|
||||
|
||||
Arguments:
|
||||
|
||||
Value1 - first value to multiply
|
||||
Value2 - value to multiply Value1 by
|
||||
ResultHigh - overflow
|
||||
|
||||
Returns:
|
||||
|
||||
Value1 * Value2
|
||||
|
||||
Notes:
|
||||
|
||||
The 64-bit result is the concatenation of *ResultHigh and the return value
|
||||
|
||||
The product fits in 32 bits if
|
||||
(*ResultHigh == 0x00000000 AND *ResultLow_bit31 == 0)
|
||||
OR
|
||||
(*ResultHigh == 0xffffffff AND *ResultLow_bit31 == 1)
|
||||
|
||||
--*/
|
||||
{
|
||||
INT64 Result;
|
||||
|
||||
Result = Value1 * Value2;
|
||||
|
||||
return Result;
|
||||
}
|
||||
|
||||
UINT64
|
||||
MulU64x64 (
|
||||
UINT64 Value1,
|
||||
UINT64 Value2,
|
||||
UINT64 *ResultHigh
|
||||
)
|
||||
/*++
|
||||
|
||||
Routine Description:
|
||||
|
||||
Multiply two unsigned 32-bit values.
|
||||
|
||||
Arguments:
|
||||
|
||||
Value1 - first number
|
||||
Value2 - number to multiply by Value1
|
||||
ResultHigh - overflow
|
||||
|
||||
Returns:
|
||||
|
||||
Value1 * Value2
|
||||
|
||||
Notes:
|
||||
|
||||
The 64-bit result is the concatenation of *ResultHigh and the return value.
|
||||
The product fits in 32 bits if *ResultHigh == 0x00000000
|
||||
|
||||
--*/
|
||||
{
|
||||
UINT64 Result;
|
||||
|
||||
Result = Value1 * Value2;
|
||||
|
||||
return Result;
|
||||
}
|
||||
|
||||
INT64
|
||||
DivS64x64 (
|
||||
INT64 Value1,
|
||||
INT64 Value2,
|
||||
INT64 *Remainder,
|
||||
UINTN *Error
|
||||
)
|
||||
/*++
|
||||
|
||||
Routine Description:
|
||||
|
||||
Divide two 64-bit signed values.
|
||||
|
||||
Arguments:
|
||||
|
||||
Value1 - dividend
|
||||
Value2 - divisor
|
||||
Remainder - remainder of Value1/Value2
|
||||
Error - to flag errors (divide-by-0)
|
||||
|
||||
Returns:
|
||||
|
||||
Value1 / Valu2
|
||||
|
||||
Note:
|
||||
|
||||
The 64-bit remainder is in *Remainder and the quotient is the return value.
|
||||
*Error = 1 if the divisor is 0, and it is 1 otherwise
|
||||
|
||||
--*/
|
||||
{
|
||||
INT64 Result;
|
||||
|
||||
*Error = 0;
|
||||
|
||||
if (Value2 == 0x0) {
|
||||
*Error = 1;
|
||||
Result = 0x8000000000000000;
|
||||
*Remainder = 0x8000000000000000;
|
||||
} else {
|
||||
Result = Value1 / Value2;
|
||||
*Remainder = Value1 - Result * Value2;
|
||||
}
|
||||
|
||||
return Result;
|
||||
}
|
||||
|
||||
UINT64
|
||||
DivU64x64 (
|
||||
UINT64 Value1,
|
||||
UINT64 Value2,
|
||||
UINT64 *Remainder,
|
||||
UINTN *Error
|
||||
)
|
||||
/*++
|
||||
|
||||
Routine Description:
|
||||
|
||||
Divide two 64-bit unsigned values.
|
||||
|
||||
Arguments:
|
||||
|
||||
Value1 - dividend
|
||||
Value2 - divisor
|
||||
Remainder - remainder of Value1/Value2
|
||||
Error - to flag errors (divide-by-0)
|
||||
|
||||
Returns:
|
||||
|
||||
Value1 / Valu2
|
||||
|
||||
Note:
|
||||
|
||||
The 64-bit remainder is in *Remainder and the quotient is the return value.
|
||||
*Error = 1 if the divisor is 0, and it is 1 otherwise
|
||||
|
||||
--*/
|
||||
{
|
||||
UINT64 Result;
|
||||
|
||||
*Error = 0;
|
||||
|
||||
if (Value2 == 0x0) {
|
||||
*Error = 1;
|
||||
Result = 0x8000000000000000;
|
||||
*Remainder = 0x8000000000000000;
|
||||
} else {
|
||||
Result = Value1 / Value2;
|
||||
*Remainder = Value1 - Result * Value2;
|
||||
}
|
||||
|
||||
return Result;
|
||||
}
|
||||
Reference in New Issue
Block a user