nicer fixed step interface

2022-11-05 15:06:54 -07:00
parent b8f9152ff6
commit d96eafaa47
6 changed files with 59 additions and 60 deletions
--- a/lib/src/Interpreter.cpp
+++ b/lib/src/Interpreter.cpp
@@ -5,6 +5,14 @@ namespace intcode {
 BadInstruction::BadInstruction(char const* what)
    : std::runtime_error{what} {}

+auto StepInput(Machine & m, ValueType input) -> void {
+  std::get<Input>(Step(m)).pos = input;
+}
+
+auto StepOutput(Machine & m) -> ValueType {
+  return std::get<Output>(Step(m)).val;
+}
+
 auto Step(Machine & m) -> std::variant<Input, Output, Halt> {
  for (;;) {
    auto instruction = m.Next();