diff --git a/src/ir.rs b/src/ir.rs
new file mode 100644
index 0000000..1ef19ee
--- /dev/null
+++ b/src/ir.rs
@@ -0,0 +1,33 @@
+#[derive(Debug, Clone, Copy)]
+pub struct Register(u8);
+
+#[derive(Debug, Clone, Copy)]
+pub enum Place {
+    Register(Register),
+    /// `[r5]`
+    AddrRegister(Register),
+    /// `[353]`
+    AddrLiteral(u64),
+}
+
+#[derive(Debug, Clone, Copy)]
+pub enum Value {
+    Literal(u64),
+    Place(Place),
+}
+
+#[derive(Debug, Clone, Copy)]
+pub struct Location {
+    index: usize,
+}
+
+#[derive(Debug, Clone, Copy)]
+pub enum Stmt {
+    Mov { to: Place, from: Value },
+    Add { to: Place, value: Value },
+    Sub { to: Place, value: Value },
+    Mul { to: Place, value: Value },
+    Div { to: Place, value: Value },
+    Jmp { to: Location },
+    Cmp { lhs: Value, rhs: Value },
+}