add rest of basic mov instructions

src/arch/x86_64/reg.rs

@@ -51,6 +51,14 @@ impl Reg {
         self.width
     }
 
+    pub fn not8(&self) -> u8 {
+        self.width.not8()
+    }
+
+    pub fn high(&self) -> bool {
+        self.high
+    }
+
     /// if self has 64 bit width, changes width to 32 bit
     pub fn lower64(&self) -> Self {
         let mut new = *self;
@@ -101,8 +109,8 @@ impl Width {
     }
 
     /// greater than 8 bits
-    pub const fn gt8(&self) -> bool {
-        !matches!(self, Self::B8)
+    pub const fn not8(&self) -> u8 {
+        !matches!(self, Self::B8) as u8
     }
 }