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|
#!/usr/bin/env ruby
class Program
def initialize(program)
@mem = program
@pc = 0
end
def dis_next
opcode = @mem[@pc] % 100
p3, p2, p1 = ("%03d" % (@mem[@pc] / 100)).chars
print "#{@pc}: "
case opcode
when 1
puts "add #{Program.sigil(p1)}#{@mem[@pc+1]}, #{Program.sigil(p2)}#{@mem[@pc+2]}, #{Program.sigil(p3)}#{@mem[@pc+3]}"
@pc += 4
when 2
puts "mul #{Program.sigil(p1)}#{@mem[@pc+1]}, #{Program.sigil(p2)}#{@mem[@pc+2]}, #{Program.sigil(p3)}#{@mem[@pc+3]}"
@pc += 4
when 3
puts "inp #{Program.sigil(p1)}#{@mem[@pc+1]}"
@pc += 2
when 4
puts "out #{Program.sigil(p1)}#{@mem[@pc+1]}"
@pc += 2
when 5
puts "jnz #{Program.sigil(p1)}#{@mem[@pc+1]}, #{Program.sigil(p2)}#{@mem[@pc+2]}"
@pc += 3
when 6
puts "jez #{Program.sigil(p1)}#{@mem[@pc+1]}, #{Program.sigil(p2)}#{@mem[@pc+2]}"
@pc += 3
when 7
puts "tlt #{Program.sigil(p1)}#{@mem[@pc+1]}, #{Program.sigil(p2)}#{@mem[@pc+2]}, #{Program.sigil(p3)}#{@mem[@pc+3]}"
@pc += 4
when 8
puts "teq #{Program.sigil(p1)}#{@mem[@pc+1]}, #{Program.sigil(p2)}#{@mem[@pc+2]}, #{Program.sigil(p3)}#{@mem[@pc+3]}"
@pc += 4
when 9
puts "arb #{Program.sigil(p1)}#{@mem[@pc+1]}"
@pc += 2
when 99
puts "hlt"
@pc += 1
else
puts "@dat #{@mem[@pc]}"
@pc += 1
end
end
def dis_all
until @pc >= @mem.length do
dis_next
end
end
private
def self.sigil(p)
case p
when "0"
"@"
when "2"
"&"
end
end
end
exit 1 if ARGV.length != 1
source = ARGV.shift.strip
input = File.readlines(source)[0].strip.split(",").map(&:to_i)
p = Program.new(input)
p.dis_all
|
