1 files changed, 83 insertions, 0 deletions
diff --git a/Core/MdeModulePkg/Universal/EbcDxe/Ia32/EbcLowLevel.S b/Core/MdeModulePkg/Universal/EbcDxe/Ia32/EbcLowLevel.S
new file mode 100644
index 0000000000..caf8d40ffb
--- /dev/null
+++ b/Core/MdeModulePkg/Universal/EbcDxe/Ia32/EbcLowLevel.S
@@ -0,0 +1,83 @@
+#/** @file
+#  
+#    Low level IA32 specific EBC support routines.
+#  
+#  Copyright (c) 2007 - 2011, 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.
+#  
+#**/
+
+ASM_GLOBAL ASM_PFX(CopyMem)
+ASM_GLOBAL ASM_PFX(EbcInterpret)
+ASM_GLOBAL ASM_PFX(ExecuteEbcImageEntryPoint)
+
+ASM_GLOBAL ASM_PFX(EbcLLCALLEXNative)
+ASM_PFX(EbcLLCALLEXNative):
+         push   %ebp
+         push   %ebx
+         mov    %esp,%ebp
+         mov    0xc(%esp),%ecx
+         mov    0x14(%esp),%eax
+         mov    0x10(%esp),%edx
+         sub    %edx,%eax
+         sub    %eax,%esp
+         mov    %esp,%ebx
+         push   %ecx
+         push   %eax
+         push   %edx
+         push   %ebx
+         call   ASM_PFX(CopyMem)
+         pop    %eax
+         pop    %eax
+         pop    %eax
+         pop    %ecx
+         call   *%ecx
+         mov    %ebp,%esp
+         mov    %ebp,%esp
+         pop    %ebx
+         pop    %ebp
+         ret
+
+ASM_GLOBAL ASM_PFX(EbcLLEbcInterpret)
+ASM_PFX(EbcLLEbcInterpret):
+    # Construct new stack
+    push %ebp
+    mov  %esp, %ebp
+    push %esi
+    push %edi
+    sub  $0x40, %esp
+    push %eax
+    mov  %ebp, %esi
+    add  $0x8, %esi
+    mov  %esp, %edi
+    add  $0x4, %edi
+    mov  $0x10, %ecx
+    rep  movsd
+    
+    # call C-code
+    call ASM_PFX(EbcInterpret)
+    add  $0x44, %esp
+    pop  %edi
+    pop  %esi
+    pop  %ebp
+    ret
+
+ASM_GLOBAL ASM_PFX(EbcLLExecuteEbcImageEntryPoint)
+ASM_PFX(EbcLLExecuteEbcImageEntryPoint):
+    # Construct new stack
+    mov  %eax, -0xC(%esp)
+    mov  0x4(%esp), %eax
+    mov  %eax, -0x8(%esp)
+    mov  0x8(%esp), %eax
+    mov  %eax, -0x4(%esp)
+    # call C-code
+    sub  $0xC, %esp
+    call ASM_PFX(ExecuteEbcImageEntryPoint)
+    add  $0xC, %esp
+    ret