diff --git a/src/bin/main.rs b/src/bin/main.rs
index 3b013e6..4c27b8e 100644
--- a/src/bin/main.rs
+++ b/src/bin/main.rs
@@ -1,6 +1,25 @@
+use std::env::args;
+use std::fs::File;
+use std::io;
+use std::io::BufReader;
+use std::io::Read;
+
 use uxn::Uxn;
 
-fn main() {
-    let vm = Uxn::new();
+fn main() -> Result<(), std::io::Error> {
+    let mut vm = Uxn::new();
+
+    let argv: Vec<String> = args().collect();
+    let f: File = File::open(&argv[1])?;
+    let reader = BufReader::new(f);
+
+    let mut i = 0x0100u16;
+    for b in reader.bytes() {
+        vm.sta1(i, b?).expect("Write failed");
+        i += 1;
+    }
+
     println!("{:?}", vm);
+
+    Ok(())
 }
diff --git a/src/lib.rs b/src/lib.rs
index 1f641d1..30bf3b6 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -5,8 +5,10 @@ use std::cell::{Cell, RefCell, RefMut};
 use std::rc::Rc;
 use std::*;
 
-use memory::TrivialMemory;
-use stack::Stack;
+use memory::MemoryError;
+
+use crate::memory::{Memory, TrivialMemory};
+use crate::stack::Stack;
 
 trait Device: std::fmt::Debug {
     /**
@@ -157,4 +159,14 @@ impl Uxn {
     pub fn deo2(&mut self, port: u8, val: u16) {
         self.device(port).borrow_mut().deo2(self, port, val);
     }
+
+    pub fn sta1(&mut self, address: u16, val: u8) -> Result<(), MemoryError> {
+        self.memory.borrow_mut().set1(address, val)?;
+        Ok(())
+    }
+
+    pub fn sta2(&mut self, address: u16, val: u16) -> Result<(), MemoryError> {
+        self.memory.borrow_mut().set2(address, val)?;
+        Ok(())
+    }
 }