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authorbbahnsen <bbahnsen@6f19259b-4bc3-4df7-8a09-765794883524>2006-06-20 21:50:44 +0000
committerbbahnsen <bbahnsen@6f19259b-4bc3-4df7-8a09-765794883524>2006-06-20 21:50:44 +0000
commit975201130c7223ef29be7a28500ed107623fc4be (patch)
tree1ee2dacc73b6285d5371cf34e8100e831d971695 /MdePkg/Library/BaseMemoryLibSse2/Ia32/SetMem32.S
parent11e7b0f6dd28d03942494d3e18842d31421a9842 (diff)
downloadedk2-975201130c7223ef29be7a28500ed107623fc4be.tar.gz
edk2-975201130c7223ef29be7a28500ed107623fc4be.tar.bz2
edk2-975201130c7223ef29be7a28500ed107623fc4be.zip
Use capital S for GCC assembly. This enables pre-processing for PCD support.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@576 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'MdePkg/Library/BaseMemoryLibSse2/Ia32/SetMem32.S')
-rw-r--r--MdePkg/Library/BaseMemoryLibSse2/Ia32/SetMem32.S71
1 files changed, 71 insertions, 0 deletions
diff --git a/MdePkg/Library/BaseMemoryLibSse2/Ia32/SetMem32.S b/MdePkg/Library/BaseMemoryLibSse2/Ia32/SetMem32.S
new file mode 100644
index 0000000000..a1a6317115
--- /dev/null
+++ b/MdePkg/Library/BaseMemoryLibSse2/Ia32/SetMem32.S
@@ -0,0 +1,71 @@
+#------------------------------------------------------------------------------
+#
+# 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:
+#
+# SetMem32.asm
+#
+# Abstract:
+#
+# SetMem32 function
+#
+# Notes:
+#
+#------------------------------------------------------------------------------
+
+ .686:
+ #.MODEL flat,C
+ .xmm:
+ .code:
+
+#------------------------------------------------------------------------------
+# VOID *
+# _mem_SetMem32 (
+# IN VOID *Buffer,
+# IN UINTN Count,
+# IN UINT32 Value
+# )
+#------------------------------------------------------------------------------
+.global _InternalMemSetMem32
+_InternalMemSetMem32:
+ push %edi
+ movl 12(%esp), %edx
+ movl 8(%esp), %edi
+ xorl %ecx, %ecx
+ subl %edi, %ecx
+ andl $15, %ecx # ecx + edi aligns on 16-byte boundary
+ movl 16(%esp), %eax
+ jz L0
+ shrl $2, %ecx
+ cmpl %edx, %ecx
+ cmova %edx, %ecx
+ subl %ecx, %edx
+ rep
+ stosl
+L0:
+ movl %edx, %ecx
+ andl $3, %edx
+ shrl $2, %ecx
+ jz @SetDwords
+ movd %eax, %xmm0
+ pshufd $0, %xmm0, %xmm0
+L1:
+ movntdq %xmm0, (%edi)
+ addl $16, %edi
+ loop L1
+ mfence
+@SetDwords:
+ movl %edx, %ecx
+ rep
+ stosl
+ movl 8(%esp), %eax
+ pop %edi
+ ret