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)

                                               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">

	`0.e+1 = 0.`,
	`123.E-1_0 = 123e-10`,
	`01_23.e123 = 123e123`,

	`.0e-1 = .0`,
	`.123E+10 = .123e10`,
	`.0123E123 = .0123e123`,

	`1_2_3.123 = 123.123`,
	`0123.01_23 = 123.0123`,

	`1e-1000000000 = 0`,
	`1e+1000000000 = ?`,
	`6e5518446744 = ?`,
	`-6e5518446744 = ?`,

	// hexadecimal floats
	`0x0.p+0 = 0.`,
	`0Xdeadcafe.p-10 = 0xdeadcafe/1024`,
	`0x1234.P84 = 0x1234000000000000000000000`,

	`0x.1p-0 = 1/16`,

	LEAL	12(SP), BX
	MOVL	$CLOCK_MONOTONIC, 4(SP)
	MOVL	BX, 8(SP)
	INT	$0x80
	MOVL	12(SP), AX	// sec
	MOVL	16(SP), BX	// nsec

	// sec is in AX, nsec in BX
	// convert to DX:AX nsec
	MOVL	$1000000000, CX
	MULL	CX
	ADDL	BX, AX
	ADCL	$0, DX

	MOVL	AX, ret_lo+0(FP)
	MOVL	DX, ret_hi+4(FP)
	RET


TEXT runtime·asmSigaction(SB),NOSPLIT,$-4
	MOVL	$SYS_sigaction, AX
	INT	$0x80

	LEAQ	8(SP), SI		// arg 2 - tp
	MOVL	$SYS___clock_gettime50, AX
	SYSCALL
	MOVQ	8(SP), AX		// sec
	MOVQ	16(SP), DX		// nsec

	// sec is in AX, nsec in DX
	// return nsec in AX
	IMULQ	$1000000000, AX
	ADDQ	DX, AX
	MOVQ	AX, ret+0(FP)
	RET

TEXT runtime·getcontext(SB),NOSPLIT,$-8
	MOVQ	ctxt+0(FP), DI		// arg 1 - context
	MOVL	$SYS_getcontext, AX
	SYSCALL
	JCC	2(PC)

	MOVL	$232, AX
	MOVQ	$4, DI  	// CLOCK_MONOTONIC
	LEAQ	8(SP), SI
	SYSCALL
	MOVQ	8(SP), AX	// sec
	MOVQ	16(SP), DX	// nsec

	// sec is in AX, nsec in DX
	// return nsec in AX
	IMULQ	$1000000000, AX
	ADDQ	DX, AX
	MOVQ	AX, ret+0(FP)
	RET

TEXT runtime·sigaction(SB),NOSPLIT,$-8
	MOVL	sig+0(FP), DI		// arg 1 sig
	MOVQ	new+8(FP), SI		// arg 2 act
	MOVQ	old+16(FP), DX		// arg 3 oact

	MOVD	$CLOCK_MONOTONIC, R0
	MOVD	$8(RSP), R1
	MOVD	$SYS_clock_gettime, R8
	SVC
	MOVD	8(RSP), R0	// sec
	MOVW	16(RSP), R2	// nsec

	// sec is in R0, nsec in R2
	// return nsec in R2
	MOVD	$1000000000, R3
	MUL	R3, R0
	ADD	R2, R0

	MOVD	R0, ret+0(FP)
	RET

// func asmSigaction(sig uintptr, new, old *sigactiont) int32
TEXT runtime·asmSigaction(SB),NOSPLIT|NOFRAME,$0

	MOVD	$8(RSP), R1		// arg 2 - tp
	SVC	$SYS___clock_gettime50
	MOVD	8(RSP), R0		// sec
	MOVD	16(RSP), R2		// nsec

	// sec is in R0, nsec in R2
	// return nsec in R2
	MOVD	$1000000000, R3
	MUL	R3, R0
	ADD	R2, R0

	MOVD	R0, ret+0(FP)
	RET

TEXT runtime·getcontext(SB),NOSPLIT,$-8
	MOVD	ctxt+0(FP), R0		// arg 1 - context
	SVC	$SYS_getcontext
	BCS	fail
	RET
fail:

	MOVW	CLOCK_MONOTONIC, R4	// arg 1 - clock_id
	MOVV	$8(R29), R5		// arg 2 - tp
	MOVV	$87, R2			// sys_clock_gettime
	SYSCALL

	MOVV	8(R29), R3		// sec
	MOVV	16(R29), R5		// nsec

	MOVV	$1000000000, R4
	MULVU	R4, R3
	MOVV	LO, R3
	ADDVU	R5, R3
	MOVV	R3, ret+0(FP)
	RET

TEXT runtime·sigaction(SB),NOSPLIT,$0
	MOVW	sig+0(FP), R4		// arg 1 - signum
	MOVV	new+8(FP), R5		// arg 2 - new sigaction