1.Fix SetMem64.S to not use SSE3 instruction

2.Make sure NULL-terminator can be appended.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@945 6f19259b-4bc3-4df7-8a09-765794883524

MdePkg/Library/BaseMemoryLibSse2/Ia32/SetMem64.S

@@ -1,63 +1,59 @@
-#------------------------------------------------------------------------------
+#------------------------------------------------------------------------------
-#
+#
-# Copyright (c) 2006, Intel Corporation
+# Copyright (c) 2006, Intel Corporation
-# All rights reserved. This program and the accompanying materials
+# All rights reserved. This program and the accompanying materials
-# are licensed and made available under the terms and conditions of the BSD License
+# 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
+# which accompanies this distribution.  The full text of the license may be found at
-# http://opensource.org/licenses/bsd-license.php
+# http://opensource.org/licenses/bsd-license.php
-#
+#
-# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
-# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-#
+#
-# Module Name:
+# Module Name:
-#
+#
-#   SetMem64.asm
+#   SetMem64.S
-#
+#
-# Abstract:
+# Abstract:
-#
+#
-#   SetMem64 function
+#   SetMem64 function
-#
+#
-# Notes:
+# Notes:
-#
+#
-#------------------------------------------------------------------------------
+#------------------------------------------------------------------------------
-
+
-    .686: 
+#------------------------------------------------------------------------------
-    #.MODEL flat,C
+#  VOID *
-    .xmm: 
+#  InternalMemSetMem64 (
-    .code: 
+#    IN VOID   *Buffer,
-
+#    IN UINTN  Count,
-#------------------------------------------------------------------------------
+#    IN UINT64 Value
-#  VOID *
+#    )
-#  _mem_SetMem64 (
+#------------------------------------------------------------------------------
-#    IN VOID   *Buffer,
+.globl _InternalMemSetMem64
-#    IN UINTN  Count,
+_InternalMemSetMem64:
-#    IN UINT64 Value
+    movl    4(%esp), %eax
-#    )
+    movl    8(%esp), %ecx
-#------------------------------------------------------------------------------
+    testb   $8, %al
-.global _InternalMemSetMem64
+    movl    %eax, %edx
-_InternalMemSetMem64:
+    movq    0xc(%esp), %xmm0
-    push    %edi
+    jz      L1
-    movl    12(%esp), %ecx
+    movq    %xmm0, (%edx)
-    movl    8(%esp), %edi
+    addl    $8, %edx
-    testl   $8, %edi
+    decl    %ecx
-    movddup 16(%esp), %xmm0
+L1: 
-    jz      L0
+    shrl    %ecx
-    movq    %xmm0, (%edi)
+    jz      @SetQwords
-    addl    $8, %edi
+    movlhps %xmm0, %xmm0
-    decl    %ecx
+L2: 
-L0: 
+    movntdq %xmm0, (%edx)
-    movl    %ecx, %edx
+    leal    16(%edx), %edx
-    shrl    %ecx
+    loop    L2
-    jz      @SetQwords
+    mfence
-L1: 
+@SetQwords: 
-    movntdq %xmm0, (%edi)
+    jnc     L3
-    addl    $16, %edi
+    movq    %xmm0, (%edx)
-    loop    L1
+L3: 
-    mfence
+    ret
-@SetQwords: 
+
-    testb   $1, %dl
+
-    jz      L2
+
-    movq    %xmm0, (%edi)
-L2: 
-    pop     %edi
-    ret

MdePkg/Library/BasePrintLib/PrintLib.c

@@ -550,7 +550,7 @@ BasePrintLibVSPrint (
   //
   // Null terminate the Unicode or ASCII string
   //
-  BasePrintLibFillBuffer (Buffer, EndBuffer, 1, 0, BytesPerOutputCharacter);
+  BasePrintLibFillBuffer (Buffer, EndBuffer + BytesPerOutputCharacter, 1, 0, BytesPerOutputCharacter);
   //
   // Make sure output buffer cannot contain more than PcdMaximumUnicodeStringLength
   // Unicode characters if PcdMaximumUnicodeStringLength is not zero. 

MdePkg/Library/BasePrintLib/PrintLibInternal.c

@@ -193,7 +193,7 @@ BasePrintLibConvertValueToString (
     }
   }
 
-  BasePrintLibFillBuffer (Buffer, EndBuffer, 1, 0, Increment);
+  BasePrintLibFillBuffer (Buffer, EndBuffer + Increment, 1, 0, Increment);
 
   return ((Buffer - OriginalBuffer) / Increment);
 }