git: 9front

ref: a94a1759a4b5b0a18504bf52d21ab044edab8196
dir: /sys/src/libc/amd64/cycles.s/

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TEXT cycles(SB),1,$0				/* time stamp counter; cycles since power up */
	RDTSC
	MOVL	AX, 0(RARG)			/* lo */
	MOVL	DX, 4(RARG)			/* hi */
	RET