-#\r
-# Copyright (c) 2004, 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
-# ProcessorAsms.Asm\r
-#\r
-#\r
-#\r
-#include "EfiBind.h"\r
-#------------------------------------------------------------------------------\r
-\r
- .686P: \r
- .MMX: \r
- #.MODEL SMALL\r
- .CODE: \r
-#------------------------------------------------------------------------------\r
- \r
-.globl ASM_PFX(TransferControlSetJump) \r
-.globl ASM_PFX(TransferControlLongJump)\r
-.globl ASM_PFX(SwitchStacks)\r
-.globl ASM_PFX(SwitchIplStacks)\r
-\r
-.equ EFI_SUCCESS, 0\r
-.equ EFI_WARN_RETURN_FROM_LONG_JUMP, 5\r
-\r
-#\r
-# typedef struct {\r
-# UINT32 ebx;\r
-# UINT32 esi;\r
-# UINT32 edi;\r
-# UINT32 ebp;\r
-# UINT32 esp;\r
-# UINT32 eip;\r
-#} EFI_JUMP_BUFFER;\r
-#\r
-\r
-#typedef \r
-#EFI_STATUS\r
-#(EFIAPI *EFI_PEI_TRANSFER_CONTROL_SET_JUMP) (\r
-# IN EFI_PEI_TRANSFER_CONTROL_PROTOCOL *This,\r
-# OUT EFI_JUMP_BUFFER *Context\r
-# );\r
-#\r
-#Routine Description:\r
-#\r
-# This routine implements the IA32 variant of the SetJump call. Its\r
-# responsibility is to store system state information for a possible\r
-# subsequent LongJump.\r
-#\r
-#Arguments:\r
-#\r
-# Pointer to CPU context save buffer.\r
-#\r
-#Returns:\r
-#\r
-# EFI_SUCCESS\r
-#\r
-ASM_PFX(TransferControlSetJump):\r
- push %ebp\r
- mov %esp,%ebp\r
- mov 0x8(%ebp),%eax\r
- mov 0xc(%ebp),%ecx\r
- mov %ebx,(%ecx)\r
- mov %esi,0x4(%ecx)\r
- mov %edi,0x8(%ecx)\r
- mov 0x0(%ebp),%eax\r
- mov %eax,0xc(%ecx)\r
- lea 0x4(%ebp),%eax\r
- mov %eax,0x10(%ecx)\r
- mov 0x4(%ebp),%eax\r
- mov %eax,0x14(%ecx)\r
- mov $0x0,%eax\r
- leave \r
- ret \r
-\r
-#typedef \r
-#EFI_STATUS\r
-#(EFIAPI *EFI_PEI_TRANSFER_CONTROL_LONG_JUMP) (\r
-# IN EFI_PEI_TRANSFER_CONTROL_PROTOCOL *This,\r
-# IN EFI_JUMP_BUFFER *Context\r
-# );\r
-#\r
-# Routine Description:\r
-# \r
-# This routine implements the IA32 variant of the LongJump call. Its\r
-# responsibility is restore the system state to the Context Buffer and\r
-# pass control back.\r
-#\r
-# Arguments:\r
-# \r
-# Pointer to CPU context save buffer.\r
-#\r
-# Returns:\r
-#\r
-# EFI_WARN_RETURN_FROM_LONG_JUMP\r
-#\r
-\r
-ASM_PFX(TransferControlLongJump):\r
- push %ebp\r
- mov %esp,%ebp\r
- push %ebx\r
- push %esi\r
- push %edi\r
- mov 0x8(%ebp),%eax\r
- mov $0x5,%eax\r
- mov 0xc(%ebp),%ecx\r
- mov (%ecx),%ebx\r
- mov 0x4(%ecx),%esi\r
- mov 0x8(%ecx),%edi\r
- mov 0xc(%ecx),%ebp\r
- mov 0x10(%ecx),%esp\r
- add $0x4,%esp\r
- jmp *0x14(%ecx)\r
- mov $0x5,%eax\r
- pop %edi\r
- pop %esi\r
- pop %ebx\r
- leave \r
- ret \r
-\r
-#\r
-# Routine Description:\r
-# This allows the caller to switch the stack and goes to the new entry point\r
-#\r
-# Arguments:\r
-# EntryPoint - Pointer to the location to enter\r
-# Parameter - Parameter to pass in\r
-# NewStack - New Location of the stack\r
-# NewBsp - New BSP\r
-#\r
-# Returns:\r
-#\r
-# Nothing. Goes to the Entry Point passing in the new parameters\r
-#\r
-#SwitchStacks PROC C \\r
-# EntryPoint:PTR DWORD, \\r
-# Parameter:DWORD, \\r
-# NewStack:PTR DWORD, \\r
-# NewBsp:PTR DWORD\r
-ASM_PFX(SwitchStacks):\r
- push %ebp\r
- mov %esp,%ebp\r
- push %ebx\r
- mov 0x14(%ebp),%eax\r
- mov 0xc(%ebp),%ebx\r
- mov 0x8(%ebp),%ecx\r
- mov 0x10(%ebp),%eax\r
- mov %eax,%esp\r
- push %ebx\r
- push $0x0\r
- jmp *%ecx\r
- pop %ebx\r
- leave \r
- ret \r
-\r
-\r
-\r
-\r
-#\r
-# Routine Description:\r
-# This allows the caller to switch the stack and goes to the new entry point\r
-#\r
-# Arguments:\r
-# EntryPoint - Pointer to the location to enter\r
-# Parameter1/Parameter2 - Parameter to pass in\r
-# NewStack - New Location of the stack\r
-# NewBsp - New BSP\r
-#\r
-# Returns:\r
-#\r
-# Nothing. Goes to the Entry Point passing in the new parameters\r
-#\r
-#SwitchIplStacks PROC C \\r
-# EntryPoint:PTR DWORD, \\r
-# Parameter1:DWORD, \\r
-# Parameter2:DWORD, \\r
-# NewStack:PTR DWORD, \\r
-# NewBsp:PTR DWORD\r
-ASM_PFX(SwitchIplStacks):\r
- push %ebp\r
- mov %esp,%ebp\r
- push %ebx\r
- mov 0x18(%ebp),%eax\r
- mov 0xc(%ebp),%ebx\r
- mov 0x10(%ebp),%edx\r
- mov 0x8(%ebp),%ecx\r
- mov 0x14(%ebp),%eax\r
- mov %eax,%esp\r
- push %edx\r
- push %ebx\r
- call *%ecx\r
- pop %ebx\r
- leave \r
- ret \r
-\r
-#SwitchIplStacks ENDP\r
-\r
-\r
-\r
+#
+# Copyright (c) 2004, 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:
+#
+# ProcessorAsms.Asm
+#
+#
+#
+#include "EfiBind.h"
+#------------------------------------------------------------------------------
+
+ .686P:
+ .MMX:
+ #.MODEL SMALL
+ .CODE:
+#------------------------------------------------------------------------------
+
+.globl ASM_PFX(TransferControlSetJump)
+.globl ASM_PFX(TransferControlLongJump)
+.globl ASM_PFX(SwitchStacks)
+.globl ASM_PFX(SwitchIplStacks)
+
+#define EFI_SUCCESS 0
+#define EFI_WARN_RETURN_FROM_LONG_JUMP 5
+
+#
+# typedef struct {
+# UINT32 ebx;
+# UINT32 esi;
+# UINT32 edi;
+# UINT32 ebp;
+# UINT32 esp;
+# UINT32 eip;
+#} EFI_JUMP_BUFFER;
+#
+
+#typedef
+#EFI_STATUS
+#(EFIAPI *EFI_PEI_TRANSFER_CONTROL_SET_JUMP) (
+# IN EFI_PEI_TRANSFER_CONTROL_PROTOCOL *This,
+# OUT EFI_JUMP_BUFFER *Context
+# );
+#
+#Routine Description:
+#
+# This routine implements the IA32 variant of the SetJump call. Its
+# responsibility is to store system state information for a possible
+# subsequent LongJump.
+#
+#Arguments:
+#
+# Pointer to CPU context save buffer.
+#
+#Returns:
+#
+# EFI_SUCCESS
+#
+ASM_PFX(TransferControlSetJump):
+ push %ebp
+ mov %esp,%ebp
+ mov 0x8(%ebp),%eax
+ mov 0xc(%ebp),%ecx
+ mov %ebx,(%ecx)
+ mov %esi,0x4(%ecx)
+ mov %edi,0x8(%ecx)
+ mov 0x0(%ebp),%eax
+ mov %eax,0xc(%ecx)
+ lea 0x4(%ebp),%eax
+ mov %eax,0x10(%ecx)
+ mov 0x4(%ebp),%eax
+ mov %eax,0x14(%ecx)
+ mov $0x0,%eax
+ leave
+ ret
+
+#typedef
+#EFI_STATUS
+#(EFIAPI *EFI_PEI_TRANSFER_CONTROL_LONG_JUMP) (
+# IN EFI_PEI_TRANSFER_CONTROL_PROTOCOL *This,
+# IN EFI_JUMP_BUFFER *Context
+# );
+#
+# Routine Description:
+#
+# This routine implements the IA32 variant of the LongJump call. Its
+# responsibility is restore the system state to the Context Buffer and
+# pass control back.
+#
+# Arguments:
+#
+# Pointer to CPU context save buffer.
+#
+# Returns:
+#
+# EFI_WARN_RETURN_FROM_LONG_JUMP
+#
+
+ASM_PFX(TransferControlLongJump):
+ push %ebp
+ mov %esp,%ebp
+ push %ebx
+ push %esi
+ push %edi
+ mov 0x8(%ebp),%eax
+ mov $0x5,%eax
+ mov 0xc(%ebp),%ecx
+ mov (%ecx),%ebx
+ mov 0x4(%ecx),%esi
+ mov 0x8(%ecx),%edi
+ mov 0xc(%ecx),%ebp
+ mov 0x10(%ecx),%esp
+ add $0x4,%esp
+ jmp *0x14(%ecx)
+ mov $0x5,%eax
+ pop %edi
+ pop %esi
+ pop %ebx
+ leave
+ ret
+
+#
+# Routine Description:
+# This allows the caller to switch the stack and goes to the new entry point
+#
+# Arguments:
+# EntryPoint - Pointer to the location to enter
+# Parameter - Parameter to pass in
+# NewStack - New Location of the stack
+# NewBsp - New BSP
+#
+# Returns:
+#
+# Nothing. Goes to the Entry Point passing in the new parameters
+#
+#SwitchStacks PROC C \
+# EntryPoint:PTR DWORD, \
+# Parameter:DWORD, \
+# NewStack:PTR DWORD, \
+# NewBsp:PTR DWORD
+ASM_PFX(SwitchStacks):
+ push %ebp
+ mov %esp,%ebp
+ push %ebx
+ mov 0x14(%ebp),%eax
+ mov 0xc(%ebp),%ebx
+ mov 0x8(%ebp),%ecx
+ mov 0x10(%ebp),%eax
+ mov %eax,%esp
+ push %ebx
+ push $0x0
+ jmp *%ecx
+ pop %ebx
+ leave
+ ret
+
+
+
+
+#
+# Routine Description:
+# This allows the caller to switch the stack and goes to the new entry point
+#
+# Arguments:
+# EntryPoint - Pointer to the location to enter
+# Parameter1/Parameter2 - Parameter to pass in
+# NewStack - New Location of the stack
+# NewBsp - New BSP
+#
+# Returns:
+#
+# Nothing. Goes to the Entry Point passing in the new parameters
+#
+#SwitchIplStacks PROC C \
+# EntryPoint:PTR DWORD, \
+# Parameter1:DWORD, \
+# Parameter2:DWORD, \
+# NewStack:PTR DWORD, \
+# NewBsp:PTR DWORD
+ASM_PFX(SwitchIplStacks):
+ push %ebp
+ mov %esp,%ebp
+ push %ebx
+ mov 0x18(%ebp),%eax
+ mov 0xc(%ebp),%ebx
+ mov 0x10(%ebp),%edx
+ mov 0x8(%ebp),%ecx
+ mov 0x14(%ebp),%eax
+ mov %eax,%esp
+ push %edx
+ push %ebx
+ call *%ecx
+ pop %ebx
+ leave
+ ret
+
+#SwitchIplStacks ENDP
+
+
+
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