case '\t':
		buf = append(buf, `\t`...)
	case '\v':
		buf = append(buf, `\v`...)
	default:
		switch {
		case r < ' ' || r == 0x7f:
			buf = append(buf, `\x`...)
			buf = append(buf, lowerhex[byte(r)>>4])
			buf = append(buf, lowerhex[byte(r)&0xF])
		case !utf8.ValidRune(r):
			r = 0xFFFD
			fallthrough
		case r < 0x10000:
			buf = append(buf, `\u`...)
			for s := 12; s >= 0; s -= 4 {

	{"375", "249", "388", "175"},
	{"375", "18446744073709551801", "388", "175"},
	{"0", "0x40000000000000", "0x200", "0"},
	{"0xeffffff900002f00", "0x40000000000000", "0x200", "0"},
	{"5", "1435700818", "72", "49"},

	}
}

//go:nosplit
func (l *debugLogWriter) writeFrameAt(pos, size uint64) bool {
	l.data.b[pos%uint64(len(l.data.b))] = uint8(size)
	l.data.b[(pos+1)%uint64(len(l.data.b))] = uint8(size >> 8)
	return size <= 0xFFFF
}

//go:nosplit
func (l *debugLogWriter) writeSync(tick, nano uint64) {
	l.tick, l.nano = tick, nano
	l.ensure(debugLogHeaderSize)
	l.writeFrameAt(l.write, 0)
	l.write += debugLogHeaderSize

	SOCK_CLOEXEC                     = 0x400000
	SOCK_DGRAM                       = 0x2
	SOCK_NONBLOCK                    = 0x4000
	SOCK_STREAM                      = 0x1
	SOL_SOCKET                       = 0xffff
	SO_ACCEPTCONN                    = 0x8000
	SO_ATTACH_BPF                    = 0x34
	SO_ATTACH_REUSEPORT_CBPF         = 0x35
	SO_ATTACH_REUSEPORT_EBPF         = 0x36
	SO_BINDTODEVICE                  = 0xd

}

func countPrefix(inst *Inst, target Prefix) int {
	n := 0
	for _, p := range inst.Prefix {
		if p&0xFF == target&0xFF {
			n++
		}
	}
	return n
}

func markLastImplicit(inst *Inst, prefix Prefix) bool {
	for i := len(inst.Prefix) - 1; i >= 0; i-- {
		p := inst.Prefix[i]
		if p&0xFF == prefix {
			inst.Prefix[i] |= PrefixImplicit
			return true
		}
	}
	return false
}

        if ( localHostname == null || localHostname.length() == 0 ) {
            byte[] addr = localInetAddress.getAddress();
            localHostname = "JCIFS" + ( addr[ 2 ] & 0xFF ) + "_" + ( addr[ 3 ] & 0xFF ) + "_"
                    + Hexdump.toHexString((int) ( Math.random() * 0xFF ), 2);
        }

        /*
         * Create an NbtAddress for the local interface with
         * the name deduced above possibly with scope applied and

		}
	}
}

func TestIsInCharacterRange(t *testing.T) {
	invalid := []rune{
		utf8.MaxRune + 1,
		0xD800, // surrogate min
		0xDFFF, // surrogate max
		-1,
	}
	for _, r := range invalid {
		if isInCharacterRange(r) {
			t.Errorf("rune %U considered valid", r)
		}
	}
}

var procInstTests = []struct {
	input  string

(AtomicAdd(64|32) ...) => (LoweredAtomicAdd(64|32) ...)

// AtomicAnd8(ptr,val) => LoweredAtomicAnd32(ptr&^3, ^((uint8(val) ^ 0xff) << ((ptr & 3) * 8)))
(AtomicAnd8 ptr val mem) =>
	(LoweredAtomicAnd32 (ANDI <typ.Uintptr> [^3] ptr)
		(NOT <typ.UInt32> (SLL <typ.UInt32> (XORI <typ.UInt32> [0xff] (ZeroExt8to32 val))
			(SLLI <typ.UInt64> [3] (ANDI <typ.UInt64> [3] ptr)))) mem)

(AtomicAnd32 ...) => (LoweredAtomicAnd32 ...)

			ctxt.AddInt(s, 1, int64(1+ctxt.PtrSize()))
			ctxt.AddInt(s, 1, DW_OP_addr)
			ctxt.AddAddress(s, data, 0)
			break
		}

		value &= 0xff
		ctxt.AddInt(s, 1, value)
		p := data.([]byte)[:value]
		ctxt.AddBytes(s, p)

	case DW_FORM_block2: // block
		value &= 0xffff

		ctxt.AddInt(s, 2, value)
		p := data.([]byte)[:value]
		ctxt.AddBytes(s, p)

	case DW_FORM_block4: // block
		value &= 0xffffffff

var dosstub = []uint8{
	0x4d,
	0x5a,
	0x90,
	0x00,
	0x03,
	0x00,
	0x00,
	0x00,
	0x04,
	0x00,
	0x00,
	0x00,
	0xff,
	0xff,
	0x00,
	0x00,
	0x8b,
	0x00,
	0x00,
	0x00,
	0x00,
	0x00,
	0x00,
	0x00,
	0x40,
	0x00,
	0x00,
	0x00,
	0x00,
	0x00,
	0x00,
	0x00,
	0x00,
	0x00,