1 #------------------------------------------------------------------------------ 2 # 3 # Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR> 4 # This program and the accompanying materials 5 # are licensed and made available under the terms and conditions of the BSD License 6 # which accompanies this distribution. The full text of the license may be found at 7 # http://opensource.org/licenses/bsd-license.php. 8 # 9 # THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 10 # WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 11 # 12 # Module Name: 13 # 14 # LongJump.S 15 # 16 # Abstract: 17 # 18 # Implementation of _LongJump() on IA-32. 19 # 20 #------------------------------------------------------------------------------ 21 22 ASM_GLOBAL ASM_PFX(InternalLongJump) 23 24 #------------------------------------------------------------------------------ 25 # VOID 26 # EFIAPI 27 # InternalLongJump ( 28 # IN BASE_LIBRARY_JUMP_BUFFER *JumpBuffer, 29 # IN UINTN Value 30 # ); 31 #------------------------------------------------------------------------------ 32 ASM_PFX(InternalLongJump): 33 pop %eax # skip return address 34 pop %edx # edx <- JumpBuffer 35 pop %eax # eax <- Value 36 movl (%edx), %ebx 37 movl 4(%edx), %esi 38 movl 8(%edx), %edi 39 movl 12(%edx), %ebp 40 movl 16(%edx), %esp 41 jmp *20(%edx) # restore "eip" 42
