Update homework 1 and 2

src/asmgen/mod.rs

@@ -0,0 +1,15 @@
+use crate::asm::Asm;
+use crate::ir;
+use crate::Translate;
+
+#[derive(Default)]
+pub struct Asmgen {}
+
+impl Translate<ir::TranslationUnit> for Asmgen {
+    type Target = Asm;
+    type Error = ();
+
+    fn translate(&mut self, _source: &ir::TranslationUnit) -> Result<Self::Target, Self::Error> {
+        todo!()
+    }
+}