shithub: riscv

ref: 17f7f6be4e1a316c0f5f26ff70e047aece4de2bc
dir: /sys/src/libc/power64/setjmp.s/

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TEXT	setjmp(SB), 1, $-8
	MOVD	LR, R4
	MOVD	RSP, (RARG)
	MOVD	R4, 8(RARG)
	MOVW	$0, RARG
	RETURN

TEXT	longjmp(SB), 1, $-8
	MOVD	RARG, R4
	MOVW	r+12(FP), RARG
	CMP	RARG, $0
	BNE	ok		/* ansi: "longjmp(0) => longjmp(1)" */
	MOVW	$1, RARG		/* bless their pointed heads */
ok:	MOVD	(R4), RSP
	MOVD	8(R4), R4
	MOVD	R4, LR
	BR	(LR)

/*
 * trampoline functions because the kernel smashes r3
 * in the uregs given to notejmp
 */
TEXT	__noterestore(SB), 1, $-8
	MOVD	R4, RARG
	MOVD	R5, LR
	BR	(LR)