shithub: riscv

ref: f02f05ca6a7a60a087a9fb7d6b2e81ff820e2d80
dir: /sys/src/libc/amd64/tas.s/

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TEXT	_tas(SB), 1, $0

	MOVL	$0xdeaddead,AX
	XCHGL	AX,(RARG)
	RET