You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: lindebug.rb
    path of file: ./repos/grinder/node/lib/metasm/samples
    
    the code of the file until where you have to start completion: #    This file is part of Metasm, the Ruby assembly manipulation suite
#    Copyright (C) 20
    
	def _updatedata
		addrsz = @rs.register_size[@rs.register_pc]
		addrfmt = "%0#{addrsz/4}X"

		@dataptr &= ((1 << addrsz) - 1)
		addr = @dataptr

		text = ''
		text << Color[:border]
		title = @rs.addrname(addr)
		pre  = [@console_width-100, 6].max
		post = [@console_width - (pre + title.length + 2), 0].max
		text << Ansi.hline(pre) << ' ' << title << ' ' << Ansi.hline(post) << Color[:normal] << "\n"

		seg = ''
		seg = ('%04X' % @rs['ds']) << ':' if @rs.cpu.shortname =~ /^ia32/

		cnt = @win_data_height
		while (cnt -= 1) > 0
			raw = @rs.memory[addr, 16].to_s
			text << seg << (addrfmt % addr) << '  '
			case @datafmt
			when 'db'; text << raw[0,8].unpack('C*').map { |c| '%02x ' % c }.join << ' ' <<
				   raw[8,8].to_s.unpack('C*').map { |c| '%02x ' % c }.join
			when 'dw'; text << raw.unpack('S*').map { |c| '%04x ' % c }.join
			when 'dd'; text << raw.unpack('L*').map { |c| '%08x ' % c }.join
			end