x64/setjmp.s

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   4 global setjmp
   5 setjmp:
   6         mov     [rdi + 0 * 8], rbx
   7         mov     [rdi + 1 * 8], rbp
   8         mov     [rdi + 2 * 8], r12
   9         mov     [rdi + 3 * 8], r13
  10         mov     [rdi + 4 * 8], r14
  11         mov     [rdi + 5 * 8], r15
  12         lea     rdx, [rsp + 8]
  13         mov     [rdi + 6 * 8], rdx
  14         mov     rdx, [rsp]
  15         mov     [rdi + 7 * 8], rdx
  16         xor     rax, rax
  17         ret
  18
  19 global longjmp
  20 longjmp:
  21         mov     rbx, [rdi + 0 * 8]
  22         mov     rbp, [rdi + 1 * 8]
  23         mov     r12, [rdi + 2 * 8]
  24         mov     r13, [rdi + 3 * 8]
  25         mov     r14, [rdi + 4 * 8]
  26         mov     r15, [rdi + 5 * 8]
  27         mov     rsp, [rdi + 6 * 8]
  28         mov     rdx, [rdi + 7 * 8]
  29         mov     eax, 1
  30         test    esi, esi
  31         cmovne  eax, esi
  32         jmp     rdx