diff options
Diffstat (limited to 'EdkCompatibilityPkg/Foundation/Library/Pei/PeiLib/ia32/SupportItpDebug.asm')
| -rw-r--r-- | EdkCompatibilityPkg/Foundation/Library/Pei/PeiLib/ia32/SupportItpDebug.asm | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/EdkCompatibilityPkg/Foundation/Library/Pei/PeiLib/ia32/SupportItpDebug.asm b/EdkCompatibilityPkg/Foundation/Library/Pei/PeiLib/ia32/SupportItpDebug.asm new file mode 100644 index 0000000000..bc0f70a0fb --- /dev/null +++ b/EdkCompatibilityPkg/Foundation/Library/Pei/PeiLib/ia32/SupportItpDebug.asm @@ -0,0 +1,69 @@ +;------------------------------------------------------------------------------
+;
+; Copyright (c) 2006, Intel Corporation
+; All rights reserved. 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.
+;
+; Module Name:
+;
+; SupportItpDebug.asm
+;
+; Abstract:
+;
+; This is the code for debuging IA32, to add a break hook at loading every module
+;
+;------------------------------------------------------------------------------
+
+; PROC:PRIVATE
+ .686P
+ .MMX
+ .MODEL SMALL
+ .CODE
+
+AsmEfiSetBreakSupport PROTO C LoadAddr:DWORD
+
+;------------------------------------------------------------------------------
+; VOID
+; AsmEfiSetBreakSupport (
+; IN UINTN LoadAddr
+; )
+;------------------------------------------------------------------------------
+
+AsmEfiSetBreakSupport PROC C LoadAddr:DWORD
+
+ mov eax, LoadAddr
+ mov dx, 60000
+ out dx, eax
+ nop
+ nop
+ nop
+ nop
+ nop
+ nop
+ nop
+ nop
+ nop
+ nop
+ nop
+ nop
+ nop
+ nop
+ nop
+ nop
+ nop
+ nop
+ nop
+ nop
+ nop
+ nop
+ nop
+ nop
+ ret
+
+AsmEfiSetBreakSupport ENDP
+ END
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