Add CryptoPkg (from UDK2010.UP3)

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10987 6f19259b-4bc3-4df7-8a09-765794883524

CryptoPkg/Library/BaseCryptLib/SysCall/Ia32/MathLShiftS64.c

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+/** @file
+  64-bit Math Worker Function.
+  The 32-bit versions of C compiler generate calls to library routines
+  to handle 64-bit math. These functions use non-standard calling conventions.
+
+Copyright (c) 2009 - 2010, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials
+are licensed and made available under the terms and conditions of the BSD License
+which accompanies this distribution.  The full text of the license may be found at
+http://opensource.org/licenses/bsd-license.php
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+
+/*
+ * Shifts a 64-bit signed value left by a particular number of bits.
+ */
+__declspec(naked) void __cdecl _allshl (void)
+{
+  _asm {
+    ;
+    ; Handle shifting of 64 or more bits (return 0)
+    ;
+    cmp     cl, 64
+    jae     short ReturnZero
+
+    ;
+    ; Handle shifting of between 0 and 31 bits
+    ;
+    cmp     cl, 32              
+    jae     short More32
+    shld    edx, eax, cl
+    shl     eax, cl
+    ret
+
+    ;
+    ; Handle shifting of between 32 and 63 bits
+    ;
+More32:
+    mov     edx, eax
+    xor     eax, eax
+    and     cl, 31
+    shl     edx, cl
+    ret
+
+ReturnZero:
+    xor     eax,eax
+    xor     edx,edx
+    ret
+  }
+}