From 39a993ff3863c66385e30e6bb9426a56e31946c3 Mon Sep 17 00:00:00 2001
From: Jordan Justen <jordan.l.justen@intel.com>
Date: Mon, 30 May 2016 18:52:12 -0700
Subject: [PATCH] MdePkg BaseMemoryLibSse2: Convert Ia32/SetMem16.asm to NASM

The BaseTools/Scripts/ConvertMasmToNasm.py script was used to convert
Ia32/SetMem16.asm to Ia32/SetMem16.nasm

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
---
 .../BaseMemoryLibSse2/BaseMemoryLibSse2.inf   |  2 +
 .../BaseMemoryLibSse2/Ia32/SetMem16.nasm      | 69 +++++++++++++++++++
 2 files changed, 71 insertions(+)
 create mode 100644 MdePkg/Library/BaseMemoryLibSse2/Ia32/SetMem16.nasm

diff --git a/MdePkg/Library/BaseMemoryLibSse2/BaseMemoryLibSse2.inf b/MdePkg/Library/BaseMemoryLibSse2/BaseMemoryLibSse2.inf
index bfa40b066b..d37bba2017 100644
--- a/MdePkg/Library/BaseMemoryLibSse2/BaseMemoryLibSse2.inf
+++ b/MdePkg/Library/BaseMemoryLibSse2/BaseMemoryLibSse2.inf
@@ -61,6 +61,7 @@
   Ia32/SetMem64.S
   Ia32/SetMem32.nasm
   Ia32/SetMem32.S
+  Ia32/SetMem16.nasm
   Ia32/SetMem16.S
   Ia32/SetMem.S
   Ia32/CopyMem.S
@@ -80,6 +81,7 @@
   Ia32/SetMem64.asm
   Ia32/SetMem32.nasm
   Ia32/SetMem32.asm
+  Ia32/SetMem16.nasm
   Ia32/SetMem16.asm
   Ia32/SetMem.asm
   Ia32/CopyMem.asm
diff --git a/MdePkg/Library/BaseMemoryLibSse2/Ia32/SetMem16.nasm b/MdePkg/Library/BaseMemoryLibSse2/Ia32/SetMem16.nasm
new file mode 100644
index 0000000000..cf44fba654
--- /dev/null
+++ b/MdePkg/Library/BaseMemoryLibSse2/Ia32/SetMem16.nasm
@@ -0,0 +1,69 @@
+;------------------------------------------------------------------------------
+;
+; Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>
+; 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:
+;
+;   SetMem16.nasm
+;
+; Abstract:
+;
+;   SetMem16 function
+;
+; Notes:
+;
+;------------------------------------------------------------------------------
+
+    SECTION .text
+
+;------------------------------------------------------------------------------
+;  VOID *
+;  EFIAPI
+;  InternalMemSetMem16 (
+;    IN VOID   *Buffer,
+;    IN UINTN  Count,
+;    IN UINT16 Value
+;    );
+;------------------------------------------------------------------------------
+global ASM_PFX(InternalMemSetMem16)
+ASM_PFX(InternalMemSetMem16):
+    push    edi
+    mov     edx, [esp + 12]
+    mov     edi, [esp + 8]
+    xor     ecx, ecx
+    sub     ecx, edi
+    and     ecx, 15                     ; ecx + edi aligns on 16-byte boundary
+    mov     eax, [esp + 16]
+    jz      .0
+    shr     ecx, 1
+    cmp     ecx, edx
+    cmova   ecx, edx
+    sub     edx, ecx
+    rep     stosw
+.0:
+    mov     ecx, edx
+    and     edx, 7
+    shr     ecx, 3
+    jz      @SetWords
+    movd    xmm0, eax
+    pshuflw xmm0, xmm0, 0
+    movlhps xmm0, xmm0
+.1:
+    movntdq [edi], xmm0                 ; edi should be 16-byte aligned
+    add     edi, 16
+    loop    .1
+    mfence
+@SetWords:
+    mov     ecx, edx
+    rep     stosw
+    mov     eax, [esp + 8]
+    pop     edi
+    ret
+