git: 9front

ref: a0ba4c1f03a3f99fb17a9edf9b4448db49bb6c46
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