diff --git a/src/main.rs b/src/main.rs
index 6316f2d..2fb9f0f 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -250,7 +250,7 @@ impl Default for Machine {
 
             RSTAT: Flags::FSE,
 
-            IP: 0,
+            IP: 1,
             RCALL: 0,
             RSK: 0xffff,
             RSR: 0,
@@ -348,6 +348,7 @@ OP::RCPF => 	2,
 }
 
 fn parse_instruction(mut bytes: &[u16]) -> (Instruction, usize) {
+    println!("{:#02x?}", &bytes[0..8]);
     let mut consumed = 0;
 
     let def = DefinitionWord(bytes[0]);
@@ -377,6 +378,7 @@ fn parse_instruction(mut bytes: &[u16]) -> (Instruction, usize) {
         bytes = &bytes[1..];
         consumed += 1;
 
+        println!("{:016b}", aw);
         for i in 0..register_count {
             registers.insert(0_usize, Register::into_register(aw & 0b1111));
             aw >>= 4;
@@ -464,6 +466,7 @@ impl Machine {
                 let arg0 = cur_instruction.args[0].as_immediate();
                 self.write(cur_instruction.args[1], arg0);
                 self.RSTAT.set(Flags::FZERO, arg0 == 0);
+                eprintln!("copying {} to {:?}", arg0, cur_instruction.args[1]);
             }
             OP::CMP => {
                 let a = self.read(cur_instruction.args[0]);
@@ -509,10 +512,10 @@ fn main() {
     let mut codeinner = code.inner();
 
     let mut m = Machine::default();
-    m.SIN = sin.inner().to_vec();
-    m.SCODE = code.inner().to_vec();
+    m.SIN[1..=sin.inner().len()].copy_from_slice(sin.inner());
+    m.SCODE[1..=code.inner().len()].copy_from_slice(code.inner());
 
-    dump_instructions(&m.SCODE[1..]);
+//    dump_instructions(&m.SCODE[1..]);
 
-//    while m.step() {}
+    while m.step() {}
 }