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42 lines
1.4 KiB
42 lines
1.4 KiB
4 years ago
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#------------------------------------------------------------------------------
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#
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# Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
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# 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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# http://opensource.org/licenses/bsd-license.php.
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#
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# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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#
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# Module Name:
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#
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# LongJump.S
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#
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# Abstract:
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#
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# Implementation of _LongJump() on IA-32.
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#
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#------------------------------------------------------------------------------
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ASM_GLOBAL ASM_PFX(InternalLongJump)
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#------------------------------------------------------------------------------
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# VOID
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# EFIAPI
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# InternalLongJump (
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# IN BASE_LIBRARY_JUMP_BUFFER *JumpBuffer,
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# IN UINTN Value
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# );
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#------------------------------------------------------------------------------
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ASM_PFX(InternalLongJump):
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pop %eax # skip return address
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pop %edx # edx <- JumpBuffer
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pop %eax # eax <- Value
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movl (%edx), %ebx
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movl 4(%edx), %esi
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movl 8(%edx), %edi
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movl 12(%edx), %ebp
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movl 16(%edx), %esp
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jmp *20(%edx) # restore "eip"
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