return uint64(b[7]) | uint64(b[6])<<8 | uint64(b[5])<<16 | uint64(b[4])<<24 |
		uint64(b[3])<<32 | uint64(b[2])<<40 | uint64(b[1])<<48 | uint64(b[0])<<56
}

// hostByteOrder returns littleEndian on little-endian machines and
// bigEndian on big-endian machines.
func hostByteOrder() byteOrder {
	switch runtime.GOARCH {
	case "386", "amd64", "amd64p32",
		"alpha",
		"arm", "arm64",
		"loong64",
		"mipsle", "mips64le", "mips64p32le",

		// ignore the error and leave Initialized = false. On some
		// architectures (e.g. arm64) doinit() implements a fallback
		// readout and will set Initialized = true again.
		return err
	}
	bo := hostByteOrder()
	for len(buf) >= 2*(uintSize/8) {
		var tag, val uint
		switch uintSize {
		case 32:
			tag = uint(bo.Uint32(buf[0:]))
			val = uint(bo.Uint32(buf[4:]))
			buf = buf[8:]
		case 64: