Import some basic libraries instances for Mde Packages.

[mirror_edk2.git] / MdePkg / Library / BaseMemoryLibRepStr / Ia32 / ZeroMem.S

diff --git a/MdePkg/Library/BaseMemoryLibRepStr/Ia32/ZeroMem.S b/MdePkg/Library/BaseMemoryLibRepStr/Ia32/ZeroMem.S
new file mode 100644 (file)
index 0000000..9551c1a
--- /dev/null
+++ b/MdePkg/Library/BaseMemoryLibRepStr/Ia32/ZeroMem.S
@@ -0,0 +1,54 @@
+//\r
+// Include common header file for this module.\r
+//\r
+#include "CommonHeader.h"\r
+\r
+#------------------------------------------------------------------------------\r
+#\r
+# Copyright (c) 2006, Intel Corporation\r
+# All rights reserved. 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
+#   ZeroMem.Asm\r
+#\r
+# Abstract:\r
+#\r
+#   ZeroMem function\r
+#\r
+# Notes:\r
+#\r
+#------------------------------------------------------------------------------\r
+\r
+.globl _InternalMemZeroMem\r
+\r
+#------------------------------------------------------------------------------\r
+#  VOID *\r
+#  InternalMemZeroMem (\r
+#    IN VOID   *Buffer,\r
+#    IN UINTN  Count\r
+#    );\r
+#------------------------------------------------------------------------------\r
+_InternalMemZeroMem:\r
+    push    %edi\r
+    xorl    %eax,%eax\r
+    movl    8(%esp),%edi\r
+    movl    12(%esp),%ecx\r
+    movl    %ecx,%edx\r
+    shrl    $2,%ecx\r
+    andl    $3,%edx\r
+    pushl   %edi\r
+    rep\r
+    stosl\r
+    movl    %edx,%ecx\r
+    rep\r
+    stosb\r
+    popl    %eax\r
+    pop     %edi\r
+    ret\r