Moved the MdePkg to OldMdePkg so that new code in MdePkg does not break existing...

[mirror_edk2.git] / OldMdePkg / Library / BaseMemoryLibSse2 / Ia32 / ScanMem64.S

diff --git a/OldMdePkg/Library/BaseMemoryLibSse2/Ia32/ScanMem64.S b/OldMdePkg/Library/BaseMemoryLibSse2/Ia32/ScanMem64.S
new file mode 100644 (file)
index 0000000..3ba6965
--- /dev/null
+++ b/OldMdePkg/Library/BaseMemoryLibSse2/Ia32/ScanMem64.S
@@ -0,0 +1,59 @@
+#------------------------------------------------------------------------------
+#
+# 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:
+#
+#   ScanMem64.Asm
+#
+# Abstract:
+#
+#   ScanMem64 function
+#
+# Notes:
+#
+#   The following BaseMemoryLib instances share the same version of this file:
+#
+#       BaseMemoryLibRepStr
+#       BaseMemoryLibMmx
+#       BaseMemoryLibSse2
+#
+#------------------------------------------------------------------------------
+
+.globl _InternalMemScanMem64
+
+#------------------------------------------------------------------------------
+# CONST VOID *
+# EFIAPI
+# InternalMemScanMem64 (
+#   IN      CONST VOID                *Buffer,
+#   IN      UINTN                     Length,
+#   IN      UINT64                    Value
+#   );
+#------------------------------------------------------------------------------
+_InternalMemScanMem64:
+    push    %edi
+    movl    12(%esp), %ecx
+    movl    16(%esp), %eax
+    movl    20(%esp), %edx
+    movl    8(%esp), %edi
+L0:
+    cmpl    (%edi), %eax
+    leal    8(%edi), %edi
+    loopne  L0
+    jne     L1
+    cmpl    -4(%edi), %edx
+    jecxz   L1
+    jne     L0
+L1:
+    leal    -8(%edi), %eax
+    cmovne  %ecx, %eax
+    pop     %edi
+    ret