-#------------------------------------------------------------------------------
-#
-# 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:
-#
-# SetMem.asm
-#
-# Abstract:
-#
-# SetMem function
-#
-# Notes:
-#
-#------------------------------------------------------------------------------
-
- .686:
- #.MODEL flat,C
- .xmm:
- .code:
-
-#------------------------------------------------------------------------------
-# VOID *
-# _mem_SetMem (
-# IN VOID *Buffer,
-# IN UINTN Count,
-# IN UINT8 Value
-# );
-#------------------------------------------------------------------------------
-.global _InternalMemSetMem
-_InternalMemSetMem:
- push %edi
- movl 12(%esp), %edx # edx <- Count
- movl 8(%esp), %edi # edi <- Buffer
- movb 16(%esp), %al # al <- Value
- xorl %ecx, %ecx
- subl %edi, %ecx
- andl $15, %ecx # ecx + edi aligns on 16-byte boundary
- jz L0
- cmpl %edx, %ecx
- cmova %edx, %ecx
- subl %ecx, %edx
- rep
- stosb
-L0:
- movl %edx, %ecx
- andl $15, %edx
- shrl $4, %ecx # ecx <- # of DQwords to set
- jz @SetBytes
- movb %al, %ah # ax <- Value | (Value << 8)
- addl $-16, %esp
- movdqu %xmm0, (%esp)
- movd %eax, %xmm0
- pshuflw $0, %xmm0, %xmm0
- movlhps %xmm0, %xmm0
-L1:
- movntdq %xmm0, (%edi)
- addl $16, %edi
- loop L1
- mfence
- movdqu (%esp), %xmm0
- addl $16, %esp # stack cleanup
-@SetBytes:
- movl %edx, %ecx
- rep
- stosb
- movl 8(%esp), %eax # eax <- Buffer as return value
- pop %edi
- ret
+#------------------------------------------------------------------------------\r
+#\r
+# Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>\r
+# 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
+# SetMem.asm\r
+#\r
+# Abstract:\r
+#\r
+# SetMem function\r
+#\r
+# Notes:\r
+#\r
+#------------------------------------------------------------------------------\r
+\r
+\r
+ #.MODEL flat,C\r
+ .xmm:\r
+ .code:\r
+\r
+#------------------------------------------------------------------------------\r
+# VOID *\r
+# _mem_SetMem (\r
+# IN VOID *Buffer,\r
+# IN UINTN Count,\r
+# IN UINT8 Value\r
+# );\r
+#------------------------------------------------------------------------------\r
+ASM_GLOBAL ASM_PFX(InternalMemSetMem)\r
+ASM_PFX(InternalMemSetMem):\r
+ push %edi\r
+ movl 12(%esp), %edx # edx <- Count\r
+ movl 8(%esp), %edi # edi <- Buffer\r
+ movb 16(%esp), %al # al <- Value\r
+ xorl %ecx, %ecx\r
+ subl %edi, %ecx\r
+ andl $15, %ecx # ecx + edi aligns on 16-byte boundary\r
+ jz L0\r
+ cmpl %edx, %ecx\r
+ cmova %edx, %ecx\r
+ subl %ecx, %edx\r
+ rep\r
+ stosb\r
+L0:\r
+ movl %edx, %ecx\r
+ andl $15, %edx\r
+ shrl $4, %ecx # ecx <- # of DQwords to set\r
+ jz L_SetBytes\r
+ movb %al, %ah # ax <- Value | (Value << 8)\r
+ addl $-16, %esp\r
+ movdqu %xmm0, (%esp)\r
+ movd %eax, %xmm0\r
+ pshuflw $0, %xmm0, %xmm0\r
+ movlhps %xmm0, %xmm0\r
+L1:\r
+ movntdq %xmm0, (%edi)\r
+ addl $16, %edi\r
+ loop L1\r
+ mfence\r
+ movdqu (%esp), %xmm0\r
+ addl $16, %esp # stack cleanup\r
+L_SetBytes:\r
+ movl %edx, %ecx\r
+ rep\r
+ stosb\r
+ movl 8(%esp), %eax # eax <- Buffer as return value\r
+ pop %edi\r
+ ret\r