add cmp instruction, add reg, reg, and reg, imm variations

1 files changed, 6 insertions, 2 deletions

diff --git a/src/instructions.rs b/src/instructions.rs
index ac88e94..77de7f4 100644
--- a/src/instructions.rs
+++ b/src/instructions.rs
@@ -1,23 +1,27 @@
 #[repr(u8)]
 pub enum Instruction {
-    MOV = 0x01,
+    MOV_RI = 0x01,
+    MOV_RR = 0x08,
     ADD = 0x02,
     SUB = 0x03,
     JMP = 0x04,
     JZ = 0x05,
     JNZ = 0x06,
+    CMP_RI = 0x07,
+    CMP_RR = 0x09,
     HLT = 0xFF,
 }
 
 impl Instruction {
     pub  fn opcode_name(op: u8) -> &'static str{
         match op {
-            0x01 => "MOV",
+            0x01 | 0x08 => "MOV",
             0x02 => "ADD",
             0x03 => "SUB",
             0x04 => "JMP",
             0x05 => "JZ",
             0x06 => "JNZ",
+            0x07 | 0x09 => "CMP",
             0xFF => "HLT",
             _ => "???",
         }