Generate VICE monitor labels from an XAsm listing file

vice-labels.rb

#!/usr/bin/env ruby

# Ruby script to generate VICE monitor labels from
# an XAsm listing file.

filename = ARGV[0]
if filename
  lines = File.readlines(filename)
else
  abort "Usage: vice-labels.rb <filename>"
end

# Collect the lines containing the symbol table
symbol_lines = []
started = false
lines.each do |line|
  if line.include?("***Symbol Listing")
    started = true
  elsif line.include?("error(s)")
    break
  elsif started && !line.strip.empty?
    symbol_lines << line
  end
end

# Parse the symbol table into a hash: {address => label}
addr_label={}
symbol_lines.each do |line|
  line.scan(/(\w+)\s+(\w+)/).each do |label, addr|
    addr_label[addr] = label
  end
end

# Generate VICE monitor labels ordered by address
addr_label.keys.sort.each do |addr|
  label = addr_label[addr]
  puts "add_label $#{addr} .#{label}"
end