37 lines
619 B
Crystal
37 lines
619 B
Crystal
def parse(input)
|
|
input.lines.map do |s|
|
|
code, int = s.split(" ")
|
|
{code, int.to_i32}
|
|
end
|
|
end
|
|
|
|
def run(prog)
|
|
acc = 0
|
|
pc = 0
|
|
visited = Set(Int32).new
|
|
input = Channel(Int32).new
|
|
output = Channel({Symbol, Int32}).new
|
|
spawn do
|
|
loop do
|
|
if pc >= prog.size
|
|
output.send({:term, acc})
|
|
break
|
|
elsif visited.includes? pc
|
|
output.send({:inf, acc})
|
|
break
|
|
end
|
|
|
|
visited << pc
|
|
code, int = prog[pc]
|
|
case code
|
|
when "acc"
|
|
acc += int
|
|
when "jmp"
|
|
pc += int - 1
|
|
end
|
|
pc += 1
|
|
end
|
|
end
|
|
{input, output}
|
|
end
|