Refactor cpu constructor and fix tests

src/cpu.rs

@@ -833,12 +833,22 @@ pub struct CPU {
 }
 
 impl CPU {
-    pub fn new(cgb_mode: bool) -> Self {
+    pub fn new() -> Self {
         Self {
-            registers: match cgb_mode {
+            registers: Registers::new(),
-                true => Registers::new_cgb(),
+            cycles: Cycles(0),
-                false => Registers::new(),
+            last_op_cycles: Cycles(0),
-            },
+            exec_calls_count: 0,
+            is_halted: false,
+            ei_delay: false,
+            ime: true,
+            enable_logs: !env::var("CPU_LOG").is_err() || !env::var("CPU_LOGS").is_err(),
+        }
+    }
+
+    pub fn new_cgb() -> Self {
+        Self {
+            registers: Registers::new_cgb(),
             cycles: Cycles(0),
             last_op_cycles: Cycles(0),
             exec_calls_count: 0,

src/emulator.rs

@@ -17,10 +17,13 @@ pub struct Emulator {
 impl Emulator {
     pub fn new() -> Self {
         let bus = Bus::new();
-        let cgb_mode = bus.cgb_mode;
+        let cpu = match bus.cgb_mode {
+            true => CPU::new_cgb(),
+            false => CPU::new(),
+        };
         Self {
             bus,
-            cpu: CPU::new(cgb_mode),
+            cpu,
         }
     }