Update the copyright notice format

[mirror_edk2.git] / EdkCompatibilityPkg / Foundation / Library / EfiCommonLib / Ia32 / GetPowerOfTwo.asm

;/*++\r
;\r
;Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>\r
;This program and the accompanying materials                          \r
;are licensed and made available under the terms and conditions of the BSD License         \r
;which accompanies this distribution.  The full text of the license may be found at        \r
;http://opensource.org/licenses/bsd-license.php                                            \r
;                                                                                          \r
;THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     \r
;WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             \r
;\r
;Module Name:\r
;\r
;  GetPowerOfTwo.c\r
;\r
;Abstract:\r
;\r
;  Calculates the largest integer that is both \r
;  a power of two and less than Input\r
;\r
;--*/\r
;---------------------------------------------------------------------------\r
    .686\r
    .model  flat,C\r
    .code\r
\r
;---------------------------------------------------------------------------\r
\r
;UINT64\r
;GetPowerOfTwo (\r
;  IN UINT64   Input\r
;  )\r
;/*++\r
;\r
;Routine Description:\r
;\r
;  Calculates the largest integer that is both \r
;  a power of two and less than Input\r
;\r
;Arguments:\r
;\r
;  Input  - value to calculate power of two\r
;\r
;Returns:\r
;\r
;  the largest integer that is both  a power of \r
;  two and less than Input\r
;\r
;--*/\r
GetPowerOfTwo PROC\r
    xor     eax, eax\r
    mov     edx, eax\r
    mov     ecx, [esp + 8] ; dword ptr Input[4]\r
    jecxz   _F\r
    bsr     ecx, ecx\r
    bts     edx, ecx\r
    jmp     _Exit\r
_F:\r
    mov     ecx, [esp + 4] ; dword ptr Input[0]\r
    jecxz   _Exit\r
    bsr     ecx, ecx\r
    bts     eax, ecx\r
_Exit:\r
\r
    ret\r
GetPowerOfTwo  ENDP\r
	END\r