mirror of https://github.com/acidanthera/audk.git
68 lines
1.5 KiB
C
68 lines
1.5 KiB
C
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/*++
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Copyright (c) 2006, Intel Corporation
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All rights reserved. This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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Module Name:
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Power10U64.c
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Abstract:
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Calculates Operand * 10 ^ Power
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--*/
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#include "Tiano.h"
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UINT64
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MultU64x32 (
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IN UINT64 Multiplicand,
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IN UINTN Multiplier
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);
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UINT64
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Power10U64 (
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IN UINT64 Operand,
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IN UINTN Power
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)
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/*++
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Routine Description:
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Raise 10 to the power of Power, and multiply the result with Operand
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Arguments:
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Operand - multiplicand
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Power - power
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Returns:
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Operand * 10 ^ Power
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--*/
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{
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__asm {
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mov ecx, Power
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jcxz _Power10U64_Done
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_Power10U64_Wend:
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push 10
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push dword ptr Operand[4]
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push dword ptr Operand[0]
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call MultU64x32
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mov dword ptr Operand[0], eax
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mov dword ptr Operand[4], edx
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loop _Power10U64_Wend
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_Power10U64_Done:
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}
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}
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