// unscale by discarding low 32 bits, shifting the rest by 29
	MOVW	R6>>29,R6		// R6:R7 = (R5:R6:R7 >> 61)
	ORR	R7<<3,R6
	MOVW	R7>>29,R7

	// subtract (10**9 * sec) from nsec to get nanosecond remainder
	MOVW	$1000000000, R5		// 10**9
	MULLU	R6,R5,(R9,R8)		// R8:R9 = R6:R7 * R5
	MULA	R7,R5,R9,R9
	SUB.S	R8,R1			// R1:R2 -= R8:R9
	SBC	R9,R2

	// because reciprocal was a truncated repeating fraction, quotient

	_CLOCK_MONOTONIC = 10
)

//go:nosplit
func nanotime1() int64 {
	tp := &timespec{}
	if clock_gettime(_CLOCK_REALTIME, tp) != 0 {
		throw("syscall clock_gettime failed")
	}
	return tp.tv_sec*1000000000 + tp.tv_nsec
}

func walltime() (sec int64, nsec int32) {
	ts := &timespec{}
	if clock_gettime(_CLOCK_REALTIME, ts) != 0 {
		throw("syscall clock_gettime failed")
	}
	return ts.tv_sec, int32(ts.tv_nsec)

        def socket = new DatagramSocket(0, addressFactory.wildcardBindingAddress)
        (1..500).each {
            addressFactory.communicationAddresses.each { address ->
                byte[] bytes = [1, 0, 0, 0, 0, 0, 0, 0, 0]
                DatagramPacket confirmPacket = new DatagramPacket(bytes, bytes.length, address, receivingSocket.localPort)
                socket.send(confirmPacket)
            }
        }

        then:

        assertEquals("1.0 GB", format.format(_999_megabytes, ScaleUnit.GIGABYTE));

        long _1000_megabytes = 1000L * 1000L * 1000L;
        assertEquals("1.0 GB", format.format(_1000_megabytes));
        assertEquals("1000000000 B", format.format(_1000_megabytes, ScaleUnit.BYTE));
        assertEquals("1000000 kB", format.format(_1000_megabytes, ScaleUnit.KILOBYTE));
        assertEquals("1000 MB", format.format(_1000_megabytes, ScaleUnit.MEGABYTE));

	dir, err := os.MkdirTemp("", "cachetest-")
	if err != nil {
		t.Fatal(err)
	}
	defer os.RemoveAll(dir)

	c, err := Open(dir)
	if err != nil {
		t.Fatalf("Open: %v", err)
	}
	const start = 1000000000
	now := int64(start)
	c.now = func() time.Time { return time.Unix(now, 0) }

	checkTime := func(name string, mtime int64) {
		t.Helper()
		file := filepath.Join(c.dir, name[:2], name)

00000080  62 49 4a da f4 df 93 a0  ab e1 12 4d 8d 34 2c 6a  |bIJ........M.4,j|
00000090  15 03 03 00 30 00 00 00  00 00 00 00 00 00 00 00  |....0...........|
000000a0  00 00 00 00 00 1c 08 e5  52 29 79 d6 15 07 10 44  |........R)y....D|
000000b0  95 07 07 cb 3b 2b 37 2f  e3 dc 17 f9 27 b6 5d 44  |....;+7/....'.]D|

                                               value="${f:h(maxAccessCount)}" class="form-control"
                                               min="0" max="1000000000">
                                    </div>
                                </div>
                                <div class="form-group row">

                                               value="${f:h(maxAccessCount)}" class="form-control"
                                               min="0" max="1000000000">
                                    </div>
                                </div>
                                <div class="form-group row">

00000080  1d 66 26 89 29 ab 71 dc  00 14 d6 8e 7e 47 bd ee  |.f&.).q.....~G..|
00000090  15 03 03 00 30 00 00 00  00 00 00 00 00 00 00 00  |....0...........|
000000a0  00 00 00 00 00 e3 72 e5  7c 8c c6 f5 72 ba 37 52  |......r.|...r.7R|
000000b0  be 38 a0 a2 62 71 d9 f6  a2 9e b5 4a af 0f 13 3e  |.8..bq.....J...>|

00000080  45 69 69 cf 73 cb b1 6c  fc 71 49 de 41 ca 4d 4f  |Eii.s..l.qI.A.MO|
00000090  15 03 03 00 30 00 00 00  00 00 00 00 00 00 00 00  |....0...........|
000000a0  00 00 00 00 00 d1 66 64  ce 59 eb 23 13 e9 92 28  |......fd.Y.#...(|
000000b0  a4 2a 7a b0 e1 79 ce 92  34 77 6e b3 8d d3 bb e6  |.*z..y..4wn.....|