Start adding debugger
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1add491851
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147
lib/day9/day9.ex
147
lib/day9/day9.ex
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@ -65,13 +65,13 @@ defmodule Day9 do
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def repeat(_, 0), do: []
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def repeat(val, count), do: [val | repeat(val, count - 1)]
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def run(state, parent, ip \\ 0)
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def run(state, parent, ip \\ 0, debug \\ false)
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def run(memory, parent, ip) when is_list(memory) do
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run({memory, 0}, parent, ip)
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def run(memory, parent, ip, debug) when is_list(memory) do
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run({memory, 0}, parent, ip, debug)
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end
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def run({memory, _relative_base} = state, parent, ip) when ip < length(memory) do
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def run({memory, _relative_base} = state, parent, ip, debug) when ip < length(memory) do
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# IO.puts("IP: #{ip}")
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# IO.inspect(memory)
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@ -80,14 +80,34 @@ defmodule Day9 do
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send(parent, {:halt, self(), memory})
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{state, :cont, offset} ->
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if debug do
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receive do
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:step ->
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run(state, parent, ip + offset)
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:abort ->
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send(parent, {:abort, self(), state})
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end
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else
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run(state, parent, ip + offset)
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end
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{state, :jump, ip} ->
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if debug do
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receive do
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:step ->
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run(state, parent, ip)
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:abort ->
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send(parent, {:abort, self(), state})
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end
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else
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run(state, parent, ip)
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end
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end
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end
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def run(state, parent, _) do
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def run(state, parent, _, _) do
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send(parent, {:ok, self(), state})
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end
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@ -101,9 +121,9 @@ defmodule Day9 do
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place = param + 2
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case op |> div(pow(10, place)) |> rem(10) do
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0 -> Enum.at(memory, val)
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1 -> val
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2 -> Enum.at(memory, relative_base + val)
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0 -> {Enum.at(memory, val), {:position, val}}
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1 -> {val, {:immediate, val}}
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2 -> {Enum.at(memory, relative_base + val), {:relative, val}}
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end
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end
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@ -111,8 +131,8 @@ defmodule Day9 do
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place = param + 2
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case op |> div(pow(10, place)) |> rem(10) do
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2 -> relative_base + val
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_ -> val
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2 -> {relative_base + val, {:relative, val}}
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_ -> {val, {:immediate, val}}
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end
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end
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@ -123,31 +143,38 @@ defmodule Day9 do
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end
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# halt
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def eval([99 | _], memory, _) do
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def eval([99 | _], memory, parent) do
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send(parent, {:debug, "Halted", [], memory})
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{memory, :halt}
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end
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# add
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def eval([op, a, b, dest | _], {memory, relative_base} = state, _) when opcode(op, 1) do
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a_val = get_param(op, 0, a, state)
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b_val = get_param(op, 1, b, state)
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dest = get_write_param(op, 2, dest, state)
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def eval([op, a, b, dest | _], {memory, relative_base} = state, parent) when opcode(op, 1) do
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{a_val, a_param} = get_param(op, 0, a, state)
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{b_val, b_param} = get_param(op, 1, b, state)
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{dest, dest_param} = get_write_param(op, 2, dest, state)
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new_state = {List.replace_at(memory, dest, a_val + b_val), relative_base}
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send(parent, {:debug, "Add", [a_param, b_param, dest_param], new_state})
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{
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{List.replace_at(memory, dest, a_val + b_val), relative_base},
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new_state,
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:cont,
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4
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}
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end
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# multiply
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def eval([op, a, b, dest | _], {memory, relative_base} = state, _) when opcode(op, 2) do
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a_val = get_param(op, 0, a, state)
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b_val = get_param(op, 1, b, state)
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dest = get_write_param(op, 2, dest, state)
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def eval([op, a, b, dest | _], {memory, relative_base} = state, parent) when opcode(op, 2) do
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{a_val, a_param} = get_param(op, 0, a, state)
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{b_val, b_param} = get_param(op, 1, b, state)
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{dest, dest_param} = get_write_param(op, 2, dest, state)
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new_state = {List.replace_at(memory, dest, a_val * b_val), relative_base}
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send(parent, {:debug, "Multiply", [a_param, b_param, dest_param], new_state})
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{
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{List.replace_at(memory, dest, a_val * b_val), relative_base},
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new_state,
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:cont,
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4
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}
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@ -155,7 +182,7 @@ defmodule Day9 do
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# input
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def eval([op, addr | _], {memory, relative_base} = state, parent) when opcode(op, 3) do
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addr = get_write_param(op, 0, addr, state)
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{addr, addr_param} = get_write_param(op, 0, addr, state)
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send(parent, {:in, self()})
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res =
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@ -163,8 +190,12 @@ defmodule Day9 do
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{:in, val} -> val
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end
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new_state = {List.replace_at(memory, addr, res), relative_base}
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send(parent, {:debug, "Input", [addr_param], new_state})
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{
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{List.replace_at(memory, addr, res), relative_base},
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new_state,
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:cont,
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2
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}
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@ -172,68 +203,92 @@ defmodule Day9 do
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# output
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def eval([op, param | _], state, parent) when opcode(op, 4) do
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out = get_param(op, 0, param, state)
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{out, out_param} = get_param(op, 0, param, state)
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send(parent, {:out, self(), out})
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send(parent, {:debug, "Output", [out_param], state})
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{state, :cont, 2}
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end
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# jump if non-zero
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def eval([op, condition, ip | _], state, _) when opcode(op, 5) do
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case get_param(op, 0, condition, state) do
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def eval([op, condition, ip | _], state, parent) when opcode(op, 5) do
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{cond_val, cond_param} = get_param(op, 0, condition, state)
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{dest_val, dest_param} = get_param(op, 1, ip, state)
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new_state =
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case cond_val do
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0 ->
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{state, :cont, 3}
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_ ->
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{state, :jump, get_param(op, 1, ip, state)}
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{state, :jump, dest_val}
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end
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send(parent, {:debug, "Jump if non-zero", [cond_param, dest_param], new_state})
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new_state
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end
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# jump if zero
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def eval([op, condition, ip | _], state, _) when opcode(op, 6) do
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case get_param(op, 0, condition, state) do
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def eval([op, condition, ip | _], state, parent) when opcode(op, 6) do
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{cond_val, cond_param} = get_param(op, 0, condition, state)
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{dest_val, dest_param} = get_param(op, 1, ip, state)
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new_state =
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case cond_val do
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0 ->
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{state, :jump, get_param(op, 1, ip, state)}
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{state, :jump, dest_val}
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_ ->
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{state, :cont, 3}
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end
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send(parent, {:debug, "Jump if zero", [cond_param, dest_param], new_state})
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new_state
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end
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# less than
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def eval([op, a, b, dest | _], {memory, relative_base} = state, _) when opcode(op, 7) do
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a_val = get_param(op, 0, a, state)
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b_val = get_param(op, 1, b, state)
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dest = get_write_param(op, 2, dest, state)
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def eval([op, a, b, dest | _], {memory, relative_base} = state, parent) when opcode(op, 7) do
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{a_val, a_param} = get_param(op, 0, a, state)
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{b_val, b_param} = get_param(op, 1, b, state)
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{dest, dest_param} = get_write_param(op, 2, dest, state)
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memory =
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new_state = {
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if a_val < b_val do
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List.replace_at(memory, dest, 1)
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else
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List.replace_at(memory, dest, 0)
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end
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end,
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relative_base
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}
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{{memory, relative_base}, :cont, 4}
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send(parent, {:debug, "Less than", [a_param, b_param, dest_param], new_state})
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{new_state, :cont, 4}
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end
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# equals
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def eval([op, a, b, dest | _], {memory, relative_base} = state, _) when opcode(op, 8) do
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a_val = get_param(op, 0, a, state)
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b_val = get_param(op, 1, b, state)
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dest = get_write_param(op, 2, dest, state)
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def eval([op, a, b, dest | _], {memory, relative_base} = state, parent) when opcode(op, 8) do
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{a_val, a_param} = get_param(op, 0, a, state)
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{b_val, b_param} = get_param(op, 1, b, state)
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{dest, dest_param} = get_write_param(op, 2, dest, state)
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memory =
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new_state = {
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if a_val == b_val do
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List.replace_at(memory, dest, 1)
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else
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List.replace_at(memory, dest, 0)
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end
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end,
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relative_base
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}
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{{memory, relative_base}, :cont, 4}
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send(parent, {:debug, "Equal to", [a_param, b_param, dest_param], new_state})
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{new_state, :cont, 4}
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end
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# set relative base
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def eval([op, new_base | _], {memory, relative_base} = state, _) when opcode(op, 9) do
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{{memory, relative_base + get_param(op, 0, new_base, state)}, :cont, 2}
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def eval([op, new_base | _], {memory, relative_base} = state, parent) when opcode(op, 9) do
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{new_base_val, new_base_param} = get_param(op, 0, new_base, state)
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new_state = {memory, relative_base + new_base_val}
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send(parent, {:debug, "Set relative base", [new_base_param], new_state})
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{new_state, :cont, 2}
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end
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end
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@ -225,6 +225,22 @@ defmodule Assembler do
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add #{a}, $#{dest}, #{dest}
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"""
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assemble_macro ["div", a, b, dest],
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"""
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mov 0, #{dest}
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mov #{a}, tmp
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do_sub:
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clt $tmp, #{b}, _self + 2
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jnz -1, end
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add 1, $#{dest}, #{dest}
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sub $tmp, #{b}, tmp
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jmp do_sub
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tmp: -1
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end:
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"""
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|> IO.puts()
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assemble_macro ["not", src, dest],
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"""
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sub 1, #{src}, #{dest}
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@ -0,0 +1,67 @@
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defmodule Debugger do
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def run() do
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program = [1, 1, 2, 3, 1102, 4, 5, 0, 99]
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memory_view_length = floor(columns() / 7) * floor(rows() / 2 - 10)
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memory = Day9.expand_memory(program, memory_view_length)
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parent = self()
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pid =
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spawn(fn ->
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Day9.run(memory, parent, 0, true)
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end)
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step(pid)
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end
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def columns do
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{:ok, cols} = :io.columns()
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cols
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end
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def rows do
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{:ok, rows} = :io.rows()
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rows
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end
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def step(pid) do
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IO.write([IO.ANSI.clear(), IO.ANSI.home()])
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receive do
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{:debug, msg, params, {memory, _}} ->
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print_memory(memory)
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IO.puts("#{msg}: #{inspect(params)}")
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IO.gets("")
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send(pid, :step)
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step(pid)
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{msg, _, {memory, _}} when msg in [:halt, :abort, :ok] ->
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print_memory(memory)
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IO.gets("")
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end
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end
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def print_memory(memory, row_size \\ nil)
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def print_memory([], _) do
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end
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def print_memory(memory, row_size) when is_nil(row_size) do
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print_memory(memory, floor(columns() / 7))
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end
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def print_memory(memory, row_size) do
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memory
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|> Enum.take(row_size)
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|> Enum.each(fn val ->
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val
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|> to_string()
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|> String.pad_leading(7)
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|> IO.write()
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end)
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IO.write("\n\n")
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print_memory(Enum.drop(memory, row_size), row_size)
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end
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end
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@ -0,0 +1,4 @@
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program:
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data 1, 1, 2, 3
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