MdePkg BaseMemoryLibMmx: Convert X64/ZeroMem.asm to NASM

The BaseTools/Scripts/ConvertMasmToNasm.py script was used to convert
X64/ZeroMem.asm to X64/ZeroMem.nasm

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>

diff --git a/MdePkg/Library/BaseMemoryLibMmx/BaseMemoryLibMmx.inf b/MdePkg/Library/BaseMemoryLibMmx/BaseMemoryLibMmx.inf
index 3222ef89a859c1355d77a36765fd91a2800c8aa5..fee9cae168f301817069391015966aa122881d00 100644 (file)
--- a/MdePkg/Library/BaseMemoryLibMmx/BaseMemoryLibMmx.inf
+++ b/MdePkg/Library/BaseMemoryLibMmx/BaseMemoryLibMmx.inf
@@ -96,6 +96,7 @@
   Ia32/CopyMem.asm\r
 \r
 [Sources.X64]\r
+  X64/ZeroMem.nasm\r
   X64/ZeroMem.asm\r
   X64/ScanMem64.asm\r
   X64/ScanMem32.asm\r
@@ -115,6 +116,7 @@
   X64/SetMem64.S\r
   X64/SetMem32.S\r
   X64/SetMem16.S\r
+  X64/ZeroMem.nasm\r
   X64/ZeroMem.S\r
   X64/SetMem.S\r
   X64/CopyMem.S\r

diff --git a/MdePkg/Library/BaseMemoryLibMmx/X64/ZeroMem.nasm b/MdePkg/Library/BaseMemoryLibMmx/X64/ZeroMem.nasm
new file mode 100644 (file)
index 0000000..019b31f
--- /dev/null
+++ b/MdePkg/Library/BaseMemoryLibMmx/X64/ZeroMem.nasm
@@ -0,0 +1,56 @@
+;------------------------------------------------------------------------------\r
+;\r
+; Copyright (c) 2006, 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
+;   ZeroMem.nasm\r
+;\r
+; Abstract:\r
+;\r
+;   ZeroMem function\r
+;\r
+; Notes:\r
+;\r
+;------------------------------------------------------------------------------\r
+\r
+    DEFAULT REL\r
+    SECTION .text\r
+\r
+;------------------------------------------------------------------------------\r
+;  VOID *\r
+;  InternalMemZeroMem (\r
+;    IN VOID   *Buffer,\r
+;    IN UINTN  Count\r
+;    );\r
+;------------------------------------------------------------------------------\r
+global ASM_PFX(InternalMemZeroMem)\r
+ASM_PFX(InternalMemZeroMem):\r
+    push    rdi\r
+    mov     rdi, rcx\r
+    mov     rcx, rdx\r
+    mov     r8, rdi\r
+    and     edx, 7\r
+    shr     rcx, 3\r
+    jz      @ZeroBytes\r
+    DB      0xf, 0xef, 0xc0             ; pxor mm0, mm0\r
+.0:\r
+    DB      0xf, 0xe7, 7                ; movntq [rdi], mm0\r
+    add     rdi, 8\r
+    loop    .0\r
+    DB      0xf, 0xae, 0xf0             ; mfence\r
+@ZeroBytes:\r
+    xor     eax, eax\r
+    mov     ecx, edx\r
+    rep     stosb\r
+    mov     rax, r8\r
+    pop     rdi\r
+    ret\r
+\r