Import some basic libraries instances for Mde Packages.

[mirror_edk2.git] / MdePkg / Library / BaseLib / Ia32 / DivU64x32Remainder.asm

diff --git a/MdePkg/Library/BaseLib/Ia32/DivU64x32Remainder.asm b/MdePkg/Library/BaseLib/Ia32/DivU64x32Remainder.asm
new file mode 100644 (file)
index 0000000..e025b22
--- /dev/null
+++ b/MdePkg/Library/BaseLib/Ia32/DivU64x32Remainder.asm
@@ -0,0 +1,51 @@
+;------------------------------------------------------------------------------\r
+;\r
+; Copyright (c) 2006, Intel Corporation\r
+; All rights reserved. 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
+;   DivError.asm\r
+;\r
+; Abstract:\r
+;\r
+;   Set error flag for all division functions\r
+;\r
+;------------------------------------------------------------------------------\r
+\r
+    .386\r
+    .model  flat,C\r
+    .code\r
+\r
+;------------------------------------------------------------------------------\r
+; UINT64\r
+; EFIAPI\r
+; InternalMathDivRemU64x32 (\r
+;   IN      UINT64                    Dividend,\r
+;   IN      UINT32                    Divisor,\r
+;   OUT     UINT32                    *Remainder\r
+;   );\r
+;------------------------------------------------------------------------------\r
+InternalMathDivRemU64x32    PROC\r
+    mov     ecx, [esp + 12]         ; ecx <- divisor\r
+    mov     eax, [esp + 8]          ; eax <- dividend[32..63]\r
+    xor     edx, edx\r
+    div     ecx                     ; eax <- quotient[32..63], edx <- remainder\r
+    push    eax\r
+    mov     eax, [esp + 8]          ; eax <- dividend[0..31]\r
+    div     ecx                     ; eax <- quotient[0..31]\r
+    mov     ecx, [esp + 20]         ; ecx <- Remainder\r
+    jecxz   @F                      ; abandon remainder if Remainder == NULL\r
+    mov     [ecx], edx\r
+@@:\r
+    pop     edx                     ; edx <- quotient[32..63]\r
+    ret\r
+InternalMathDivRemU64x32    ENDP\r
+\r
+    END\r