1 files changed, 3 insertions, 3 deletions

diff --git a/aisa/aisa.h b/aisa/aisa.h
index 4488529..e4e1074 100644
--- a/aisa/aisa.h
+++ b/aisa/aisa.h
@@ -31,7 +31,7 @@ namespace aisa {
 
         virtual std::string disasm() const = 0;
 
-        virtual std::optional<std::pair<std::unique_ptr<const Step>, regval_t>> step(regval_t environment_val) const { return {}; }
+        virtual std::optional<std::pair<std::unique_ptr<const Step>, regval_t>> step(regval_t environment_val) const;
     };
 
     struct MemInfo {
@@ -78,8 +78,8 @@ namespace aisa {
 
         MOp mop = MOp::NONE;
 
-        virtual MemInfo meminfo(const Wires &wires) const { return {}; }
-        virtual void evaluate(Wires &wires) const { };
+        virtual MemInfo meminfo(const Wires &wires) const;
+        virtual void evaluate(Wires &wires) const;
     };
 
 }