shithub: scc

ref: 5eb2945975eab587998f04bf277ec09fcfcec0e1
dir: /lib/c/target/amd64-sysv/setjmp.s/

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/* Copyright 2011-2012 Nicholas J. Kain, licensed under standard MIT license */

	.file	"setjmp.s"
	.global	setjmp
setjmp:
	mov	%rbx,(%rdi)     # rdi is jmp_buf, move registers onto it
	mov	%rbp,8(%rdi)
	mov	%r12,16(%rdi)
	mov	%r13,24(%rdi)
	mov	%r14,32(%rdi)
	mov	%r15,40(%rdi)
	lea	8(%rsp),%rdx    # this is our rsp WITHOUT current ret addr
	mov	%rdx,48(%rdi)
	mov	(%rsp),%rdx     # save return addr ptr for new rip
	mov	%rdx,56(%rdi)
	xor	%rax,%rax       # always return 0
	ret