diff --git a/runtime/src/comms.rs b/runtime/src/comms.rs
index 895884ca..cf5cc881 100644
--- a/runtime/src/comms.rs
+++ b/runtime/src/comms.rs
@@ -18,11 +18,9 @@ use libboard_zynq::{
     },
 };
 use libsupport_zynq::alloc::{vec, vec::Vec};
-use libcortex_a9::sync_channel;
 use libasync::{smoltcp::{Sockets, TcpStream}, task};
 
 use crate::kernel;
-use crate::control::KernelControl;
 
 
 #[derive(Debug, Clone, Copy, PartialEq, Eq)]
@@ -143,7 +141,7 @@ async fn send_header(stream: &TcpStream, reply: Reply) -> Result<()> {
     Ok(())
 }
 
-async fn handle_connection(stream: TcpStream, control: Rc<RefCell<Option<KernelControl>>>) -> Result<()> {
+async fn handle_connection(stream: TcpStream, control: Rc<RefCell<Option<kernel::Control>>>) -> Result<()> {
     expect(&stream, b"ARTIQ coredev\n").await?;
     loop {
         expect(&stream, &[0x5a, 0x5a, 0x5a, 0x5a]).await?;
@@ -172,7 +170,7 @@ async fn handle_connection(stream: TcpStream, control: Rc<RefCell<Option<KernelC
                     .take()
                     .map(|control| control.reset());
 
-                *control.borrow_mut() = Some(KernelControl::start(8192));
+                *control.borrow_mut() = Some(kernel::Control::start(8192));
             }
             _ => return Err(Error::UnrecognizedPacket)
         }
@@ -219,7 +217,7 @@ pub fn main() {
 
     Sockets::init(32);
 
-    let control: Rc<RefCell<Option<KernelControl>>> = Rc::new(RefCell::new(None));
+    let control: Rc<RefCell<Option<kernel::Control>>> = Rc::new(RefCell::new(None));
 
     task::spawn(async move {
         loop {
diff --git a/runtime/src/control.rs b/runtime/src/control.rs
deleted file mode 100644
index a36f6a07..00000000
--- a/runtime/src/control.rs
+++ /dev/null
@@ -1,38 +0,0 @@
-use alloc::{vec, vec::Vec};
-use libcortex_a9::{mutex::Mutex, sync_channel::{self, sync_channel}};
-use libsupport_zynq::boot::Core1;
-
-pub static CHANNEL_0TO1: Mutex<Option<sync_channel::Receiver<usize>>> = Mutex::new(None);
-pub static CHANNEL_1TO0: Mutex<Option<sync_channel::Sender<usize>>> = Mutex::new(None);
-
-/// Interface for core 0 to control core 1 start and reset
-pub struct KernelControl {
-    core1: Core1<Vec<u32>>,
-    pub tx: sync_channel::Sender<usize>,
-    pub rx: sync_channel::Receiver<usize>,
-}
-
-impl KernelControl {
-    pub fn start(stack_size: usize) -> Self {
-        let stack = vec![0; stack_size / 4];
-        let core1 = Core1::start(stack);
-
-        let (core0_tx, core1_rx) = sync_channel(4);
-        let (core1_tx, core0_rx) = sync_channel(4);
-        *CHANNEL_0TO1.lock() = Some(core1_rx);
-        *CHANNEL_1TO0.lock() = Some(core1_tx);
-
-        KernelControl {
-            core1,
-            tx: core0_tx,
-            rx: core0_rx,
-        }
-    }
-
-    pub fn reset(self) {
-        *CHANNEL_0TO1.lock() = None;
-        *CHANNEL_1TO0.lock() = None;
-
-        self.core1.reset();
-    }
-}
diff --git a/runtime/src/kernel.rs b/runtime/src/kernel.rs
index a39c8af9..342794a8 100644
--- a/runtime/src/kernel.rs
+++ b/runtime/src/kernel.rs
@@ -1,11 +1,63 @@
-use libcortex_a9::sync_channel;
+use alloc::{vec, vec::Vec};
+use libcortex_a9::{mutex::Mutex, sync_channel::{self, sync_channel}};
+use libboard_zynq::println;
+use libsupport_zynq::boot::Core1;
+
+static CHANNEL_0TO1: Mutex<Option<sync_channel::Receiver<usize>>> = Mutex::new(None);
+static CHANNEL_1TO0: Mutex<Option<sync_channel::Sender<usize>>> = Mutex::new(None);
+
+pub struct Control {
+    core1: Core1<Vec<u32>>,
+    pub tx: sync_channel::Sender<usize>,
+    pub rx: sync_channel::Receiver<usize>,
+}
+
+impl Control {
+    pub fn start(stack_size: usize) -> Self {
+        let stack = vec![0; stack_size / 4];
+        let core1 = Core1::start(stack);
+
+        let (core0_tx, core1_rx) = sync_channel(4);
+        let (core1_tx, core0_rx) = sync_channel(4);
+        *CHANNEL_0TO1.lock() = Some(core1_rx);
+        *CHANNEL_1TO0.lock() = Some(core1_tx);
+
+        Control {
+            core1,
+            tx: core0_tx,
+            rx: core0_rx,
+        }
+    }
+
+    pub fn reset(self) {
+        *CHANNEL_0TO1.lock() = None;
+        *CHANNEL_1TO0.lock() = None;
+
+        self.core1.reset();
+    }
+}
 
 pub static mut KERNEL_BUFFER: [u8; 16384] = [0; 16384];
 
-pub fn main(mut sc_tx: sync_channel::Sender<usize>, mut sc_rx: sync_channel::Receiver<usize>) {
-    for i in sc_rx {
-        sc_tx.send(*i * *i);
+#[no_mangle]
+pub fn main_core1() {
+    println!("Core1 started");
+
+    let mut core1_tx = None;
+    while core1_tx.is_none() {
+        core1_tx = CHANNEL_1TO0.lock().take();
+    }
+    let mut core1_tx = core1_tx.unwrap();
+
+    let mut core1_rx = None;
+    while core1_rx.is_none() {
+        core1_rx = CHANNEL_0TO1.lock().take();
+    }
+    let core1_rx = core1_rx.unwrap();
+
+    for i in core1_rx {
+        core1_tx.send(*i * *i);
     }
 
-	loop {}
+    loop {}
 }
diff --git a/runtime/src/main.rs b/runtime/src/main.rs
index c3716479..773b3612 100644
--- a/runtime/src/main.rs
+++ b/runtime/src/main.rs
@@ -9,14 +9,12 @@ use libboard_zynq::{
     println,
     self as zynq, clocks::Clocks, clocks::source::{ClockSource, ArmPll, IoPll},
 };
-use libsupport_zynq::{ram, boot};
-use libcortex_a9::{mutex::Mutex, sync_channel::{self, sync_channel}};
+use libsupport_zynq::ram;
 
 mod comms;
 mod pl;
 mod rtio;
 mod kernel;
-mod control;
 
 
 fn identifier_read(buf: &mut [u8]) -> &str {
@@ -32,10 +30,6 @@ fn identifier_read(buf: &mut [u8]) -> &str {
     }
 }
 
-static mut STACK_CORE1: [u32; 512] = [0; 512];
-static CHANNEL_0TO1: Mutex<Option<sync_channel::Receiver<usize>>> = Mutex::new(None);
-static CHANNEL_1TO0: Mutex<Option<sync_channel::Sender<usize>>> = Mutex::new(None);
-
 #[no_mangle]
 pub fn main_core0() {
     println!("ARTIQ runtime starting...");
@@ -53,22 +47,3 @@ pub fn main_core0() {
 
     comms::main();
 }
-
-#[no_mangle]
-pub fn main_core1() {
-    println!("Core1 started");
-
-    let mut core1_tx = None;
-    while core1_tx.is_none() {
-        core1_tx = CHANNEL_1TO0.lock().take();
-    }
-    let mut core1_tx = core1_tx.unwrap();
-
-    let mut core1_rx = None;
-    while core1_rx.is_none() {
-        core1_rx = CHANNEL_0TO1.lock().take();
-    }
-    let mut core1_rx = core1_rx.unwrap();
-
-    kernel::main(core1_tx, core1_rx);
-}