From 878ddf1fc3540a715f63594ed22b6929e881afb4 Mon Sep 17 00:00:00 2001 From: bbahnsen Date: Fri, 21 Apr 2006 22:54:32 +0000 Subject: Initial import. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@3 6f19259b-4bc3-4df7-8a09-765794883524 --- MdePkg/Library/BaseLib/ia32/ARShiftU64.s | 41 ++++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100644 MdePkg/Library/BaseLib/ia32/ARShiftU64.s (limited to 'MdePkg/Library/BaseLib/ia32/ARShiftU64.s') diff --git a/MdePkg/Library/BaseLib/ia32/ARShiftU64.s b/MdePkg/Library/BaseLib/ia32/ARShiftU64.s new file mode 100644 index 0000000000..d6af974d0f --- /dev/null +++ b/MdePkg/Library/BaseLib/ia32/ARShiftU64.s @@ -0,0 +1,41 @@ +#------------------------------------------------------------------------------ +# +# Copyright (c) 2006, Intel Corporation +# All rights reserved. This program and the accompanying materials +# are licensed and made available under the terms and conditions of the BSD License +# which accompanies this distribution. The full text of the license may be found at +# http://opensource.org/licenses/bsd-license.php +# +# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, +# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. +# +# Module Name: +# +# ARShiftU64.asm +# +# Abstract: +# +# 64-bit arithmetic right shift function for IA-32 +# +#------------------------------------------------------------------------------ + + + + + +.global _ARShiftU64 +_ARShiftU64: + movb 12(%esp),%cl + movl 8(%esp),%eax + cltd + testb $32,%cl +# MISMATCH: " cmovz edx, eax" + cmovz %eax, %edx +# MISMATCH: " cmovz eax, [esp + 4]" + cmovz 4(%esp), %eax + shrdl %cl,%edx,%eax + sar %cl,%edx + ret + + + -- cgit v1.2.3