MdePkg/Library/BaseLib/X64/SetJump.asm

   1 ;------------------------------------------------------------------------------
   2 ;
   3 ; Copyright (c) 2006, Intel Corporation
   4 ; All rights reserved. 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 ;   SetJump.Asm
  15 ;
  16 ; Abstract:
  17 ;
  18 ;   Implementation of SetJump() on x64.
  19 ;
  20 ;------------------------------------------------------------------------------
  21
  22     .code
  23
  24 EXTERNDEF   InternalAssertJumpBuffer:PROC
  25
  26 ;------------------------------------------------------------------------------
  27 ; UINTN
  28 ; EFIAPI
  29 ; SetJump (
  30 ;   OUT     BASE_LIBRARY_JUMP_BUFFER  *JumpBuffer
  31 ;   );
  32 ;------------------------------------------------------------------------------
  33 SetJump     PROC
  34     push    rcx
  35     add     rsp, -20h
  36     call    InternalAssertJumpBuffer
  37     add     rsp, 20h
  38     pop     rcx
  39     pop     rdx
  40     mov     [rcx], rbx
  41     mov     [rcx + 8], rsp
  42     mov     [rcx + 10h], rbp
  43     mov     [rcx + 18h], rdi
  44     mov     [rcx + 20h], rsi
  45     mov     [rcx + 28h], r12
  46     mov     [rcx + 30h], r13
  47     mov     [rcx + 38h], r14
  48     mov     [rcx + 40h], r15
  49     mov     [rcx + 48h], rdx
  50     xor     rax, rax
  51     jmp     rdx
  52 SetJump     ENDP
  53
  54     END