1. Advance IP in case of Break(3) in breakpoint exception
2. Add stack management algorithm to avoid pool allocation during EBC instruction interpretation. 3. Add multi EBC image support. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@2519 6f19259b-4bc3-4df7-8a09-765794883524
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@@ -2,7 +2,7 @@
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title VM ASSEMBLY LANGUAGE ROUTINES
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;****************************************************************************
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;*
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;* Copyright (c) 2006, Intel Corporation
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;* Copyright (c) 2006 - 2007, Intel Corporation
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;* All rights reserved. This program and the accompanying materials
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;* are licensed and made available under the terms and conditions of the BSD License
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;* which accompanies this distribution. The full text of the license may be found at
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@@ -45,6 +45,7 @@
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;---------------------------------------------------------------------------
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;;GenericPostSegment SEGMENT USE16
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;---------------------------------------------------------------------------
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CopyMem PROTO C Destination:PTR DWORD, Source:PTR DWORD, Count:DWORD
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;****************************************************************************
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; EbcLLCALLEXNative
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@@ -61,16 +62,29 @@
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; VOID EbcLLCALLEXNative(UINTN FuncAddr, UINTN NewStackPointer, VOID *FramePtr)
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_EbcLLCALLEXNative PROC NEAR PUBLIC
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push ebp
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push ebx
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mov ebp, esp ; standard function prolog
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; Get function address in a register
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; mov ecx, FuncAddr => mov ecx, dword ptr [FuncAddr]
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mov ecx, dword ptr [esp]+8
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mov ecx, dword ptr [esp]+0Ch
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; Set stack pointer to new value
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; mov eax, NewStackPointer => mov eax, dword ptr [NewSp]
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mov eax, dword ptr [esp] + 0Ch
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mov esp, eax
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mov eax, dword ptr [esp] + 14h
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mov edx, dword ptr [esp] + 10h
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sub eax, edx
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sub esp, eax
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mov ebx, esp
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push ecx
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push eax
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push edx
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push ebx
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call CopyMem
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pop eax
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pop eax
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pop eax
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pop ecx
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; Now call the external routine
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call ecx
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@@ -81,6 +95,7 @@ _EbcLLCALLEXNative PROC NEAR PUBLIC
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; Standard function epilog
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mov esp, ebp
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pop ebx
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pop ebp
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ret
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_EbcLLCALLEXNative ENDP
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