56 lines
829 B
Ruby
56 lines
829 B
Ruby
#!/usr/local/bin/ruby
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if ARGV.empty?
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puts "usage: <delta value | t> <files ...>"
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exit(1)
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end
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textmode = false
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if ARGV[0] == 't'
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ARGV.shift
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textmode = true
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else
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delta = ARGV.shift.to_i
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end
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first = TRUE
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last = [ ]
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# simple algorithm, build up a list of all the possible addresses
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# calculating the delta range for each address in the file... then
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# just do a set intersection across these all and you have your results
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ARGV.each do |file|
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cur = [ ]
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IO.foreach(file) do |line|
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if textmode
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cur << line
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else
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addr = line.hex
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(-delta .. delta).each do |d|
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cur << addr + d
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end
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end
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end
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if first
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first = FALSE
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last = cur
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else
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last = last & cur
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end
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end
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# print da results
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last.each { |l|
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if textmode
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puts l
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else
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puts "0x%08x" % l
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end
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}
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