.global __setjmp
        .global _setjmp
        .global setjmp
        .type   __setjmp,@function
        .type   _setjmp,@function
        .type   setjmp,@function
__setjmp:
_setjmp:
setjmp:
	# 0) store IP int 0, then into the jmpbuf pointed to by r3 (first arg)
	mflr 0
	stw 0, 0(3)
	# 1) store reg1 (SP)
	stw 1, 4(3)
	# 2) store cr
	mfcr 0
	stw 0, 8(3)
	# 3) store r14-31
	stw 14, 12(3)
	stw 15, 16(3)
	stw 16, 20(3)
	stw 17, 24(3)
	stw 18, 28(3)
	stw 19, 32(3)
	stw 20, 36(3)
	stw 21, 40(3)
	stw 22, 44(3)
	stw 23, 48(3)
	stw 24, 52(3)
	stw 25, 56(3)
	stw 26, 60(3)
	stw 27, 64(3)
	stw 28, 68(3)
	stw 29, 72(3)
	stw 30, 76(3)
	stw 31, 80(3)
	# 4) set return value to 0
	li 3, 0
	# 5) return
	blr