Fix wrapping memory reads for 64-bit addresses

src/emulator.rs

@@ -3,7 +3,6 @@ use std::{
     fmt::Display,
     fs::{self, File},
     io::{Read, Seek, SeekFrom, Write},
-    ops::Range,
     path::{Path, PathBuf},
     sync::{
         atomic::{AtomicBool, Ordering},
@@ -529,11 +528,11 @@ impl Emulator {
                 let value = sim.read_register(register);
                 let _ = done.send(value);
             }
-            EmulatorCommand::ReadMemory(sim_id, addresses, mut buffer, done) => {
+            EmulatorCommand::ReadMemory(sim_id, start, length, mut buffer, done) => {
                 let Some(sim) = self.sims.get_mut(sim_id.to_index()) else {
                     return;
                 };
-                sim.read_memory(addresses, &mut buffer);
+                sim.read_memory(start, length, &mut buffer);
                 let _ = done.send(buffer);
             }
             EmulatorCommand::AddBreakpoint(sim_id, address) => {
@@ -611,7 +610,7 @@ pub enum EmulatorCommand {
     DebugContinue(SimId),
     DebugStep(SimId),
     ReadRegister(SimId, VBRegister, oneshot::Sender<u32>),
-    ReadMemory(SimId, Range<u32>, Vec<u8>, oneshot::Sender<Vec<u8>>),
+    ReadMemory(SimId, u32, usize, Vec<u8>, oneshot::Sender<Vec<u8>>),
     AddBreakpoint(SimId, u32),
     RemoveBreakpoint(SimId, u32),
     SetAudioEnabled(bool, bool),