mirror of https://github.com/acidanthera/audk.git
82 lines
2.0 KiB
NASM
82 lines
2.0 KiB
NASM
;/*++
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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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;
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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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;
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;Module Name:
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;
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; Power10U64.c
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;
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;Abstract:
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;
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; Calculates Operand * 10 ^ Power
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;
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;--*/
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;
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;#include "Tiano.h"
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;---------------------------------------------------------------------------
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.686
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.model flat,C
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.code
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MultU64x32 PROTO C
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;---------------------------------------------------------------------------
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;
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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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;
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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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;
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;Routine Description:
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;
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; Raise 10 to the power of Power, and multiply the result with Operand
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;
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;Arguments:
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;
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; Operand - multiplicand
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; Power - power
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;
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;Returns:
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;
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; Operand * 10 ^ Power
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;
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;--*/
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Power10U64 PROC
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push ebp
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mov ebp, esp
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mov eax, dword ptr [ebp + 8]; dword ptr Operand[0]
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mov edx, dword ptr [ebp + 0Ch]; dword ptr Operand[4]
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mov ecx, dword ptr [ebp + 10h] ;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 [ebp + 0Ch]; dword ptr Operand[4]
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push [ebp + 8]; dword ptr Operand[0]
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call MultU64x32
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add esp, 0cH
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mov [ebp + 8] , eax; dword ptr Operand[0]
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mov [ebp + 0Ch] , edx; dword ptr Operand[4]
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loop _Power10U64_Wend
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_Power10U64_Done:
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pop ebp
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ret
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Power10U64 ENDP
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END
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