From f92fa7c0aaec9da67fec2854ad484568df0307c9 Mon Sep 17 00:00:00 2001
From: Nathan Lee <me@nwlee.tech>
Date: Fri, 5 Jun 2026 16:37:32 -0500
Subject: refactor a CpuState struct

---
 src/main.rs | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/src/main.rs b/src/main.rs
index 502d285..df644a4 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -9,6 +9,12 @@ const MEMORY_SIZE: usize = 64 * 1024 * 1024;
 static MEMORY: LazyLock<Mutex<Box<[u8]>>> =
     LazyLock::new(|| Mutex::new(vec![0u8; MEMORY_SIZE].into_boxed_slice()));
 
+struct CpuState<'a> {
+    memory: &'a mut Box<[u8]>,
+    registers: &'a mut [u32;32],
+    pc: &'a mut u32
+}
+
 fn main() {
     let path = std::path::PathBuf::from("hi");
 
@@ -48,12 +54,16 @@ fn main() {
     loop {
         {
             let mut memory = MEMORY.lock().expect("Unable to get memory");
-            handle_instruction(&mut *memory, &mut registers, &mut pc);
+            handle_instruction(CpuState {
+                memory: &mut *memory,
+                registers: &mut registers,
+                pc: &mut pc
+            });
         }
     }
 }
 
-fn handle_instruction(memory: &mut Box<[u8]>, registers: &mut [u32], pc: &mut u32) {
+fn handle_instruction(CpuState { memory, registers, pc }: CpuState) {
     let word = u32::from_le_bytes([
         memory[*pc as usize],
         memory[*pc as usize + 1],
-- 
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