fixed some clippy warns

emulator/src/emulator/system/model.rs

@@ -233,8 +233,8 @@ pub struct PersistentState {
 impl PersistentState {
     pub fn update(&mut self, new_state: &Self) {
         self.history.extend(new_state.history.clone());
-        if self.history.len() > 32768 {
-            let len = self.history.len() - 32768;
+        if self.history.len() > 1024 {
+            let len = self.history.len() - 1024;
             self.history.drain(..len);
         }
     }

emulator/src/emulator/system/processor/mod.rs

@@ -254,7 +254,7 @@ impl Executable for Instruction {
             // To populate the lower 16 bits, see LLI.
             Self::LoadUpperImmediate(a) => {
                 *cpu.reg(a.r1) =
-                    (cpu.get(a.r1) & 0x0000_FFFF) | u32::from(a.immediate) << 16;
+                    (cpu.get(a.r1) & 0x0000_FFFF) | (u32::from(a.immediate) << 16);
             }
 
             // Unconditionally jumps to the calculated address or direct address

emulator/src/emulator/ui/memory_inspector.rs

@@ -128,7 +128,7 @@ impl Component for MemoryInspector {
                                 // combine all 4 bytes in the chunk into a u32
                                 let combined = chunk
                                     .iter()
-                                    .fold(0u32, |acc, &byte| acc << 8 | u32::from(byte));
+                                    .fold(0u32, |acc, &byte| (acc << 8) | u32::from(byte));
 
                                 ui.monospace(format!("{combined}"));
                                 ui.monospace(format!("{}", Instruction::decode(combined).unwrap_or(Instruction::Nop)));