diff options
| author |   Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com> | 2023-10-10 14:33:42 +0000 |
|---|---|---|
| committer | Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com> | 2023-10-10 14:33:42 +0000 |
| commit | af1a266670d040d2f4083ff309d732d648afba2a (patch) | |
| tree | 2fc46203448ddcc6f81546d379abfaeb323575e9 /roms/edk2/MdePkg/Library/BaseMemoryLibSse2/Ia32/ScanMem32.nasm | |
| parent | e02cda008591317b1625707ff8e115a4841aa889 (diff) | |
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
Diffstat (limited to 'roms/edk2/MdePkg/Library/BaseMemoryLibSse2/Ia32/ScanMem32.nasm')
| -rw-r--r-- | roms/edk2/MdePkg/Library/BaseMemoryLibSse2/Ia32/ScanMem32.nasm | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/roms/edk2/MdePkg/Library/BaseMemoryLibSse2/Ia32/ScanMem32.nasm b/roms/edk2/MdePkg/Library/BaseMemoryLibSse2/Ia32/ScanMem32.nasm new file mode 100644 index 000000000..9d602f0f4 --- /dev/null +++ b/roms/edk2/MdePkg/Library/BaseMemoryLibSse2/Ia32/ScanMem32.nasm @@ -0,0 +1,48 @@ +;------------------------------------------------------------------------------
+;
+; Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
+; SPDX-License-Identifier: BSD-2-Clause-Patent
+;
+; Module Name:
+;
+; ScanMem32.Asm
+;
+; Abstract:
+;
+; ScanMem32 function
+;
+; Notes:
+;
+; The following BaseMemoryLib instances contain the same copy of this file:
+;
+; BaseMemoryLibRepStr
+; BaseMemoryLibMmx
+; BaseMemoryLibSse2
+; BaseMemoryLibOptDxe
+; BaseMemoryLibOptPei
+;
+;------------------------------------------------------------------------------
+
+ SECTION .text
+
+;------------------------------------------------------------------------------
+; CONST VOID *
+; EFIAPI
+; InternalMemScanMem32 (
+; IN CONST VOID *Buffer,
+; IN UINTN Length,
+; IN UINT32 Value
+; );
+;------------------------------------------------------------------------------
+global ASM_PFX(InternalMemScanMem32)
+ASM_PFX(InternalMemScanMem32):
+ push edi
+ mov ecx, [esp + 12]
+ mov edi, [esp + 8]
+ mov eax, [esp + 16]
+ repne scasd
+ lea eax, [edi - 4]
+ cmovnz eax, ecx
+ pop edi
+ ret
+
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