shithub: riscv

ref: 1d5a2aa48778960fc9b5ab0b39f83a5322c3f754
dir: /sys/src/libc/amd64/tas.s/

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TEXT	_tas(SB), 1, $0

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