MdePkg/Library/BaseLib/X64/SetJump.asm

;------------------------------------------------------------------------------
;
; Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>
; 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:
;
;   SetJump.Asm
;
; Abstract:
;
;   Implementation of SetJump() on x64.
;
;------------------------------------------------------------------------------

    .code

EXTERN   InternalAssertJumpBuffer:PROC

;------------------------------------------------------------------------------
; UINTN
; EFIAPI
; SetJump (
;   OUT     BASE_LIBRARY_JUMP_BUFFER  *JumpBuffer
;   );
;------------------------------------------------------------------------------
SetJump     PROC
    push    rcx
    add     rsp, -20h
    call    InternalAssertJumpBuffer
    add     rsp, 20h
    pop     rcx
    pop     rdx
    mov     [rcx], rbx
    mov     [rcx + 8], rsp
    mov     [rcx + 10h], rbp
    mov     [rcx + 18h], rdi
    mov     [rcx + 20h], rsi
    mov     [rcx + 28h], r12
    mov     [rcx + 30h], r13
    mov     [rcx + 38h], r14
    mov     [rcx + 40h], r15
    mov     [rcx + 48h], rdx
    ; save non-volatile fp registers
    stmxcsr [rcx + 50h]
    movdqu  [rcx + 58h], xmm6
    movdqu  [rcx + 68h], xmm7
    movdqu  [rcx + 78h], xmm8
    movdqu  [rcx + 88h], xmm9
    movdqu  [rcx + 98h], xmm10
    movdqu  [rcx + 0A8h], xmm11
    movdqu  [rcx + 0B8h], xmm12
    movdqu  [rcx + 0C8h], xmm13
    movdqu  [rcx + 0D8h], xmm14
    movdqu  [rcx + 0E8h], xmm15
    xor     rax, rax
    jmp     rdx
SetJump     ENDP

    END