minor changes

emu/src/lib.rs

@@ -16,11 +16,7 @@ use gfx::Gfx;
 //       just draw directly to layers
 //       just have two layers
 
-
-// set version?? store in core
-// or just have a parser to get the version
-
-//
+// TODO: dump resolution and support it
 
 pub struct Megadrive {
     pub core: ConfiguredCore<AutoInterruptController, mem::Mem>,

emu/src/mem.rs

@@ -37,7 +37,10 @@ impl Mem {
             0xA11100..=0xA112FF => self.z80.ctrl_read(address) as _,
             0xC00000..=0xDFFFFF => self.vdp.read(address),
             0xFF0000..=0xFFFFFF => self.ram[address as usize & 0xFFFF] as _,
-            _ => 0, //todo!("read byte {:X}", address),
+            _ => {
+                println!("todo: read byte {:X}", address);
+                0
+            },
         }
     }
     pub fn read_u16(&self, address: u32) -> u32 {
@@ -67,7 +70,7 @@ impl Mem {
             0xFF0000..=0xFFFFFF => {
                 self.ram[address as usize & 0xFFFF] = value as u8;
             },
-            _ => (), //todo!("write byte {:X} {:X}", address, value),
+            _ => println!("todo: write byte {:X} {:X}", address, value),
         }
     }
     pub fn write_u16(&mut self, address: u32, value: u32) {

frontend-minimal/static/index.html

@@ -27,6 +27,8 @@
             html, body {
                 height: 100%;
                 margin: 0;
+            }
+            body, a {
                 background-color: #111;
                 color: #777;
             }
@@ -62,8 +64,10 @@
             <label for="file" class="file">
                 choose ROM
             </label>
+            <br />
             <input id="file" type="file" />
             <pre class="frameCount"></pre>
+            <a href="https://archive.org/download/sonicproto_bin/sonicproto.bin">example rom</a>
         </main>
         <script type="module" src="./app.js"></script>
     </body>