diff --git a/README.md b/README.md
index 6287505..f86acb7 100644
--- a/README.md
+++ b/README.md
@@ -14,6 +14,9 @@ An emulator for the MOS 6502 CPU written in Rust.
 ## Usage example
 
 ```rust
+
+#![no_std]
+
 extern crate mos6502;
 
 use mos6502::cpu;
diff --git a/src/bin/mos6502.rs b/src/bin/mos6502.rs
index 22e0586..ecb1e81 100644
--- a/src/bin/mos6502.rs
+++ b/src/bin/mos6502.rs
@@ -25,6 +25,8 @@
 // ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 // POSSIBILITY OF SUCH DAMAGE.
 
+#![no_std]
+
 extern crate mos6502;
 
 #[cfg(not(test))]
@@ -44,22 +46,11 @@ fn main() {
 
     let zero_page_data: [u8; 17] = [
         // ZeroPage data start
-        0x00,
-        0x02, // ADC ZeroPage target
-        0x00,
-        0x04, // ADC ZeroPageX target
-        0x00,
-        0x00,
-        0x00,
-        0x00,
-        0x10, // ADC IndexedIndirectX address
+        0x00, 0x02, // ADC ZeroPage target
+        0x00, 0x04, // ADC ZeroPageX target
+        0x00, 0x00, 0x00, 0x00, 0x10, // ADC IndexedIndirectX address
         0x80, // ADC IndexedIndirectX address
-        0x00,
-        0x00,
-        0x00,
-        0x00,
-        0x00,
-        0x08, // ADC IndirectIndexedY address
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x08, // ADC IndirectIndexedY address
         0x80, // ADC IndirectIndexedY address
     ];
 
@@ -101,31 +92,11 @@ fn main() {
     ];
 
     let data: [u8; 25] = [
-        0x00,
-        0x09, // ADC Absolute target
-        0x00,
-        0x00,
-        0x40, // ADC AbsoluteY target
-        0x00,
-        0x00,
-        0x00,
-        0x11, // ADC AbsoluteX target
-        0x00,
-        0x00,
-        0x00,
-        0x00,
-        0x00,
-        0x00,
-        0x00,
-        0x12, // ADC IndexedIndirectX target
-        0x00,
-        0x00,
-        0x00,
-        0x00,
-        0x00,
-        0x00,
-        0x00,
-        0x06, // ADC IndirectIndexedY target
+        0x00, 0x09, // ADC Absolute target
+        0x00, 0x00, 0x40, // ADC AbsoluteY target
+        0x00, 0x00, 0x00, 0x11, // ADC AbsoluteX target
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x12, // ADC IndexedIndirectX target
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x06, // ADC IndirectIndexedY target
     ];
 
     cpu.memory.set_bytes(Address(0x0000), &zero_page_data);