diff --git a/src/debugger/command.rs b/src/debugger/command.rs
index 48b5daa..9c813ed 100644
--- a/src/debugger/command.rs
+++ b/src/debugger/command.rs
@@ -35,7 +35,9 @@ pub enum Command {
         count: u16,
         location: MemoryLocation,
     },
-    Eval(EvalInstruction),
+    Eval {
+        instruction: String,
+    },
 }
 
 #[derive(Clone, Copy, Debug, PartialEq)]
@@ -102,9 +104,6 @@ pub struct Label {
     pub offset: i16,
 }
 
-#[derive(Debug)]
-pub enum EvalInstruction {}
-
 // TODO(refactor): Rename these variants
 // TODO(opt): Most `String` fields could be `&str` (with difficulty, no doubt)
 #[derive(Debug, PartialEq)]
@@ -199,10 +198,8 @@ impl TryFrom<&str> for Command {
             }
 
             CommandName::Eval => {
-                eprintln!("unimplemented: eval command");
-                return Err(Error::InvalidCommandName {
-                    name: "eval".to_string(),
-                });
+                let instruction = iter.collect_rest();
+                Self::Eval { instruction }
             }
         };
 
diff --git a/src/debugger/mod.rs b/src/debugger/mod.rs
index eb3198e..10e8aba 100644
--- a/src/debugger/mod.rs
+++ b/src/debugger/mod.rs
@@ -336,8 +336,10 @@ impl Debugger {
             }
 
             Command::Source { .. } => dprintln!(Always, "unimplemented: source"),
-            Command::Eval { .. } => {
+
+            Command::Eval { instruction } => {
                 self.was_pc_changed = true;
+                dprintln!(Always, "<{}>", instruction);
                 dprintln!(Always, "unimplemented: eval")
             }
 
diff --git a/src/debugger/parse.rs b/src/debugger/parse.rs
index ecc3d60..9b4cfc6 100644
--- a/src/debugger/parse.rs
+++ b/src/debugger/parse.rs
@@ -180,6 +180,12 @@ impl<'a> CommandIter<'a> {
         Ok(())
     }
 
+    pub fn collect_rest(&mut self) -> String {
+        let rest = self.buffer[self.head..].trim().to_string();
+        self.head = self.buffer.len();
+        rest
+    }
+
     /// Get next character at head, WITHOUT incrementing head
     fn peek(&self) -> Option<char> {
         if self.head >= self.buffer.len() {