MdePkg/Library/BaseLib/X64/LongJump.nasm

   1 ;------------------------------------------------------------------------------
   2 ;
   3 ; Copyright (c) 2006, 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.Asm
  15 ;
  16 ; Abstract:
  17 ;
  18 ;   Implementation of _LongJump() on x64.
  19 ;
  20 ;------------------------------------------------------------------------------
  21
  22     DEFAULT REL
  23     SECTION .text
  24
  25 ;------------------------------------------------------------------------------
  26 ; VOID
  27 ; EFIAPI
  28 ; InternalLongJump (
  29 ;   IN      BASE_LIBRARY_JUMP_BUFFER  *JumpBuffer,
  30 ;   IN      UINTN                     Value
  31 ;   );
  32 ;------------------------------------------------------------------------------
  33 global ASM_PFX(InternalLongJump)
  34 ASM_PFX(InternalLongJump):
  35     mov     rbx, [rcx]
  36     mov     rsp, [rcx + 8]
  37     mov     rbp, [rcx + 0x10]
  38     mov     rdi, [rcx + 0x18]
  39     mov     rsi, [rcx + 0x20]
  40     mov     r12, [rcx + 0x28]
  41     mov     r13, [rcx + 0x30]
  42     mov     r14, [rcx + 0x38]
  43     mov     r15, [rcx + 0x40]
  44     ; load non-volatile fp registers
  45     ldmxcsr [rcx + 0x50]
  46     movdqu  xmm6,  [rcx + 0x58]
  47     movdqu  xmm7,  [rcx + 0x68]
  48     movdqu  xmm8,  [rcx + 0x78]
  49     movdqu  xmm9,  [rcx + 0x88]
  50     movdqu  xmm10, [rcx + 0x98]
  51     movdqu  xmm11, [rcx + 0xA8]
  52     movdqu  xmm12, [rcx + 0xB8]
  53     movdqu  xmm13, [rcx + 0xC8]
  54     movdqu  xmm14, [rcx + 0xD8]
  55     movdqu  xmm15, [rcx + 0xE8]
  56     mov     rax, rdx               ; set return value
  57     jmp     qword [rcx + 0x48]
  58