1/* Copyright 2011-2012 Nicholas J. Kain, licensed under standard MIT license */
 2.global __setjmp
 3.global _setjmp
 4.global setjmp
 5.type __setjmp,@function
 6.type _setjmp,@function
 7.type setjmp,@function
 8__setjmp:
 9_setjmp:
10setjmp:
11	mov %rbx,(%rdi)         /* rdi is jmp_buf, move registers onto it */
12	mov %rbp,8(%rdi)
13	mov %r12,16(%rdi)
14	mov %r13,24(%rdi)
15	mov %r14,32(%rdi)
16	mov %r15,40(%rdi)
17	lea 8(%rsp),%rdx        /* this is our rsp WITHOUT current ret addr */
18	mov %rdx,48(%rdi)
19	mov (%rsp),%rdx         /* save return addr ptr for new rip */
20	mov %rdx,56(%rdi)
21	xor %eax,%eax           /* always return 0 */
22	ret