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Viewing changes to StdLib/LibC/CRT/Ia32/mulll.S

  • Committer: Package Import Robot
  • Author(s): Steve Langasek
  • Date: 2013-02-10 13:11:25 UTC
  • Revision ID: package-import@ubuntu.com-20130210131125-0zwkb8f8m4ecia4m
Tags: upstream-0~20121205.edae8d2d
Import upstream version 0~20121205.edae8d2d

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StdLib/LibC/CRT/Ia32/mulll.S
 
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#------------------------------------------------------------------------------
 
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#
 
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# Copyright (c) 2009 - 2011, Intel Corporation. All rights reserved.<BR>
 
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# This program and the accompanying materials are licensed and made available
 
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# under the terms and conditions of the BSD License which accompanies this
 
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# 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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#   MathMultS64x64.S
 
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#
 
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# Abstract:
 
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#
 
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#   64-bit Math Worker Function.
 
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#   Multiplies a 64-bit signed or unsigned value by a 64-bit signed or unsigned value
 
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#   and returns a 64-bit result
 
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#
 
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#------------------------------------------------------------------------------
 
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    .686:
 
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    .code:
 
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ASM_GLOBAL ASM_PFX(_mulll), ASM_PFX(MultS64x64)
 
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#------------------------------------------------------------------------------
 
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#
 
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# void __cdecl __mulll (void)
 
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#
 
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#------------------------------------------------------------------------------
 
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ASM_PFX(__mulll):
 
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    # Original local stack when calling __mulll
 
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    #               -----------------
 
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    #               |               |
 
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    #               |---------------|
 
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    #               |               |
 
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    #               |--Multiplier --|
 
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    #               |               |
 
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    #               |---------------|
 
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    #               |               |
 
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    #               |--Multiplicand-|
 
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    #               |               |
 
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    #               |---------------|
 
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    #               |  ReturnAddr** |
 
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    #       ESP---->|---------------|
 
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    #
 
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    #
 
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    # Set up the local stack for Multiplicand parameter
 
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    #
 
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    movl    16(%esp), %eax
 
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    push    %eax
 
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    movl    16(%esp), %eax
 
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    push    %eax
 
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    #
 
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    # Set up the local stack for Multiplier parameter
 
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    #
 
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    movl    16(%esp), %eax
 
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    push    %eax
 
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    movl    16(%esp), %eax
 
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    push    %eax
 
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    #
 
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    # Call native MulS64x64 of BaseLib
 
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    #
 
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    jmp     ASM_PFX(MultS64x64)
 
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    #
 
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    # Adjust stack
 
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    #
 
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    add     $16, %esp
 
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    ret     $16