diff --git a/ableos/src/rhai_shell/mod.rs b/ableos/src/rhai_shell/mod.rs
index 3134652..31ddc85 100644
--- a/ableos/src/rhai_shell/mod.rs
+++ b/ableos/src/rhai_shell/mod.rs
@@ -89,15 +89,16 @@ pub fn set_hostname(name: String) {
 }
 
 /// Examine a memory pointer
-pub fn peek_memory(ptr: i64) -> u8 {
-    let ptr: usize = ptr.unsigned_abs() as _;
+pub fn peek_memory(ptr: i64) -> i64 {
     println!(">:(");
-    unsafe { *(ptr as *const u8) }
+    unsafe { *(ptr as *const u8) as _ }
 }
 
-pub fn poke_memory(ptr: i64, val: u8) {
-    let ptr: usize = ptr.unsigned_abs() as _;
-    unsafe { *(ptr as *mut u8) = val }
+pub fn poke_memory(ptr: i64, val: i64) {
+    match val.try_into() {
+        Ok(val) => unsafe { *(ptr as *mut u8) = val },
+        Err(_) => println!("Error: {val} cannot be converted into u8"),
+    }
 }
 
 pub fn ls() {