1 files changed, 42 insertions, 0 deletions
diff --git a/roms/edk2/MdePkg/Library/BaseLib/Ia32/DivU64x32Remainder.nasm b/roms/edk2/MdePkg/Library/BaseLib/Ia32/DivU64x32Remainder.nasm
new file mode 100644
index 000000000..944ba73f1
--- /dev/null
+++ b/roms/edk2/MdePkg/Library/BaseLib/Ia32/DivU64x32Remainder.nasm
@@ -0,0 +1,42 @@
+;------------------------------------------------------------------------------
+;
+; Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>
+; SPDX-License-Identifier: BSD-2-Clause-Patent
+;
+; Module Name:
+;
+;   DivError.asm
+;
+; Abstract:
+;
+;   Set error flag for all division functions
+;
+;------------------------------------------------------------------------------
+
+    SECTION .text
+
+;------------------------------------------------------------------------------
+; UINT64
+; EFIAPI
+; InternalMathDivRemU64x32 (
+;   IN      UINT64                    Dividend,
+;   IN      UINT32                    Divisor,
+;   OUT     UINT32                    *Remainder
+;   );
+;------------------------------------------------------------------------------
+global ASM_PFX(InternalMathDivRemU64x32)
+ASM_PFX(InternalMathDivRemU64x32):
+    mov     ecx, [esp + 12]         ; ecx <- divisor
+    mov     eax, [esp + 8]          ; eax <- dividend[32..63]
+    xor     edx, edx
+    div     ecx                     ; eax <- quotient[32..63], edx <- remainder
+    push    eax
+    mov     eax, [esp + 8]          ; eax <- dividend[0..31]
+    div     ecx                     ; eax <- quotient[0..31]
+    mov     ecx, [esp + 20]         ; ecx <- Remainder
+    jecxz   .0                      ; abandon remainder if Remainder == NULL
+    mov     [ecx], edx
+.0:
+    pop     edx                     ; edx <- quotient[32..63]
+    ret
+