Quick script to colorize the output of avr-objdump. Install smart_colored first: gem install smart_colored

colorize-dump.rb

#!/usr/bin/env ruby

require 'smart_colored/extend'


module Rules
  extend self

  Rules = []


  #
  # Quick meta-method which adds a given rule to the internal
  # list of rules to be applied.
  #
  def add(&block)
    Rules << block
  end

  #
  # Meta-method which adss a simple substitution rule.
  # 
  def add_substitution_rule(find, replace)
    add { |line| line.gsub(find, replace) }
  end

  #
  # Applies each of the defined rules to a given line.
  #
  def apply_all(line)
    Rules.each { |rule| line = rule[line] }
    line
  end

  
  #
  # Helper regular expressions.
  #
  
  #Assembly-language comment.
  COMMENT = /(;.*)$/

  #Section header
  SECTION_HEADER = /^([0-9a-fA-F]+)\s+<(.*)>:$/

  #Register names
  REGISTER_NAME = /(r[0-9]+)/

  #Code which is likely C source code.
  C_SOURCE = /^([0-9a-f\s]*[^0-9a-f\s:]+.*)$/

  #
  # List of all AVR opcodes.
  #

  Mnemonics = 
    %w{
       nop movw muls mulsu fmul fmuls fmulsu cpc sbc add cpse cp sub adc and eor or mov cpi sbci subi 
       ori andi ld ldd st std lpm elpm pop sts push com neg swap inc asr lsr ror dec bset bclr ijmp 
       eijmp ret icall reti eicall sleep break wdr lpm elpm spm espm jmp call adiw sbiw cbi sbic sbi sbis 
       mul in out rjmp rcall ldi brbs brbc bld bst sbrc sbrs brcs brcc cli
      }

  #
  # Rule definitions.
  # 

  #Colorize comments in green.
  add_substitution_rule COMMENT, '\1'.green

  #Colorize section headers in yellow.
  add_substitution_rule SECTION_HEADER, "\\1 <#{'\2'.bold}>:".yellow 

  #Colorize opcodes in bold and blue.
  Mnemonics.each { |mnemonic| add_substitution_rule(/(\s#{mnemonic}\s)/, '\1'.bold.blue) }

  #Colorize register names in blue...
  add_substitution_rule REGISTER_NAME, '\1'.cyan

  #Try to colorize lines of C in red
  add_substitution_rule C_SOURCE, '\1'.magenta


end

#Apply each of the rules to the command line 
ARGF.each_line { |line| print Rules::apply_all(line) }

#vim: filetype=ruby