1 files changed, 48 insertions, 0 deletions
diff --git a/src/types/value.rs b/src/types/value.rs
new file mode 100644
index 0000000..fe82710
--- /dev/null
+++ b/src/types/value.rs
@@ -0,0 +1,48 @@
+#[derive(Clone, Copy)]
+pub enum Value {
+    Byte(u8),
+    Double(u16),
+}
+
+impl From<Value> for usize {
+    fn from(value: Value) -> Self {
+        match value {
+            Value::Byte(byte) => byte.into(),
+            Value::Double(double) => double.into(),
+        }
+    }
+}
+
+impl From<&Value> for usize {
+    fn from(value: &Value) -> Self {
+        (*value).into()
+    }
+}
+
+impl std::fmt::Display for Value {
+    fn fmt(&self, f: &mut std::fmt::Formatter) -> Result<(), std::fmt::Error> {
+        match self {
+            Self::Byte(value) => write!(f, "0x{value:02x}"),
+            Self::Double(value) => write!(f, "0x{value:04x}"),
+        }
+    }
+}
+
+
+impl std::str::FromStr for Value {
+    type Err = ();
+
+    fn from_str(token: &str) -> Result<Self, Self::Err> {
+        match token.len() {
+            2 => match u8::from_str_radix(&token, 16) {
+                Ok(value) => Ok(Value::Byte(value)),
+                Err(_) => Err(()),
+            }
+            4 => match u16::from_str_radix(&token, 16) {
+                Ok(value) => Ok(Value::Double(value)),
+                Err(_) => Err(()),
+            }
+            _ => Err(()),
+        }
+    }
+}