1 files changed, 37 insertions, 0 deletions
diff --git a/roms/edk2/MdePkg/Library/BaseLib/Ia32/DivU64x32.nasm b/roms/edk2/MdePkg/Library/BaseLib/Ia32/DivU64x32.nasm
new file mode 100644
index 000000000..d462119d4
--- /dev/null
+++ b/roms/edk2/MdePkg/Library/BaseLib/Ia32/DivU64x32.nasm
@@ -0,0 +1,37 @@
+;------------------------------------------------------------------------------
+;
+; Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>
+; SPDX-License-Identifier: BSD-2-Clause-Patent
+;
+; Module Name:
+;
+;   DivU64x32.nasm
+;
+; Abstract:
+;
+;   Calculate the quotient of a 64-bit integer by a 32-bit integer
+;
+;------------------------------------------------------------------------------
+
+    SECTION .text
+
+;------------------------------------------------------------------------------
+; UINT64
+; EFIAPI
+; InternalMathDivU64x32 (
+;   IN      UINT64                    Dividend,
+;   IN      UINT32                    Divisor
+;   );
+;------------------------------------------------------------------------------
+global ASM_PFX(InternalMathDivU64x32)
+ASM_PFX(InternalMathDivU64x32):
+    mov     eax, [esp + 8]
+    mov     ecx, [esp + 12]
+    xor     edx, edx
+    div     ecx
+    push    eax                     ; save quotient on stack
+    mov     eax, [esp + 8]
+    div     ecx
+    pop     edx                     ; restore high-order dword of the quotient
+    ret
+