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|
;/**
; * @file
; *
; * Agesa library 32bit
; *
; * Contains AMD AGESA Library
; *
; * @xrefitem bom "File Content Label" "Release Content"
; * @e project: AGESA
; * @e sub-project: Lib
; * @e \$Revision: 9201 $ @e \$Date: 2008-10-31 03:36:20 -0500 (Fri, 31 Oct 2008) $
; */
;*****************************************************************************
;
; Copyright (c) 2011, Advanced Micro Devices, Inc.
; All rights reserved.
;
; Redistribution and use in source and binary forms, with or without
; modification, are permitted provided that the following conditions are met:
; * Redistributions of source code must retain the above copyright
; notice, this list of conditions and the following disclaimer.
; * Redistributions in binary form must reproduce the above copyright
; notice, this list of conditions and the following disclaimer in the
; documentation and/or other materials provided with the distribution.
; * Neither the name of Advanced Micro Devices, Inc. nor the names of
; its contributors may be used to endorse or promote products derived
; from this software without specific prior written permission.
;
; THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
; ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
; WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
; DISCLAIMED. IN NO EVENT SHALL ADVANCED MICRO DEVICES, INC. BE LIABLE FOR ANY
; DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
; (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
; ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
; (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
; SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
;
;*****************************************************************************
.586p
.model flat
ASSUME FS:NOTHING
.code
;/*++
;
;Routine Description:
;
; Shifts a UINT64 to the right.
;
;Arguments:
;
; EDX:EAX - UINT64 value to be shifted
; CL - Shift count
;
;Returns:
;
; EDX:EAX - shifted value
;
;--*/
_aullshr PROC NEAR C PUBLIC
.if (cl < 64)
.if (cl >= 32)
sub cl, 32
mov eax, edx
xor edx, edx
.endif
shrd eax, edx, cl
shr edx, cl
.else
xor eax, eax
xor edx, edx
.endif
ret
_aullshr ENDP
;/*++
;
;Routine Description:
;
; Shifts a UINT64 to the left.
;
;Arguments:
;
; EDX:EAX - UINT64 value to be shifted
; CL - Shift count
;
;Returns:
;
; EDX:EAX - shifted value
;
;--*/
_allshl PROC NEAR C PUBLIC USES CX
.if (cl < 64)
.if (cl >= 32)
sub cl, 32
mov edx, eax
xor eax, eax
.endif
shld edx, eax, cl
shl eax, cl
.else
xor eax, eax
xor edx, edx
.endif
ret
_allshl ENDP
END
|
