From 112e462685d5fa9ef57fc3d8a59b4f67a4473b61 Mon Sep 17 00:00:00 2001
From: Raphael Amorim <rapha850@gmail.com>
Date: Wed, 25 Dec 2024 20:25:41 -0300
Subject: [PATCH] remove bit rotation manually

---
 src/cpu/misc.rs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/cpu/misc.rs b/src/cpu/misc.rs
index c77f3aa..9d16426 100644
--- a/src/cpu/misc.rs
+++ b/src/cpu/misc.rs
@@ -78,7 +78,8 @@ fn alu_swap(cpu: &mut Cpu, a: u8) -> u8 {
     cpu.registers.flag(C, false);
     cpu.registers.flag(H, false);
     cpu.registers.flag(N, false);
-    (a >> 4) | (a << 4)
+    a.rotate_left(4)
+    // (a >> 4) | (a << 4)
 }
 
 fn alu_sla(cpu: &mut Cpu, a: u8) -> u8 {