fix cartridge problem on web

src/gameboy.rs

@@ -17,6 +17,7 @@ pub enum RenderMode {
     #[cfg(not(target_arch = "wasm32"))]
     Terminal,
     #[cfg(target_arch = "wasm32")]
+    #[default]
     WebAssembly,
 }
 

src/mbc/mbc1.rs

@@ -40,6 +40,7 @@ impl MBC1 {
         res.loadram().map(|_| res)
     }
 
+    #[allow(dead_code)]
     pub fn new_without_save(data: Vec<u8>) -> StrResult<MBC1> {
         let (svpath, rambanks) = match data[0x147] {
             0x02 => (None, ram_banks(data[0x149])),

src/mbc/mbc3.rs

@@ -52,6 +52,38 @@ impl MBC3 {
         res.loadram().map(|_| res)
     }
 
+    pub fn new_without_save(data: Vec<u8>) -> StrResult<MBC3> {
+        let subtype = data[0x147];
+        let svpath = match subtype {
+            // 0x0F | 0x10 | 0x13 => Some(file.with_extension("gbsave")),
+            _ => None,
+        };
+        let rambanks = match subtype {
+            0x10 | 0x12 | 0x13 => ram_banks(data[0x149]),
+            _ => 0,
+        };
+        let ramsize = rambanks * 0x2000;
+        let rtc = match subtype {
+            0x0F | 0x10 => Some(0),
+            _ => None,
+        };
+
+        let mut res = MBC3 {
+            rom: data,
+            ram: ::std::iter::repeat(0u8).take(ramsize).collect(),
+            rombank: 1,
+            rambank: 0,
+            rambanks,
+            selectrtc: false,
+            ram_on: false,
+            savepath: svpath,
+            rtc_ram: [0u8; 5],
+            rtc_ram_latch: [0u8; 5],
+            rtc_zero: rtc,
+        };
+        res.loadram().map(|_| res)
+    }
+
     fn loadram(&mut self) -> StrResult<()> {
         match self.savepath {
             None => Ok(()),

src/mbc/mod.rs

@@ -41,7 +41,7 @@ pub fn get_mbc(
     filepath: Option<path::PathBuf>,
 ) -> StrResult<Box<dyn MBC + 'static>> {
     if filepath.is_none() {
-        return mbc1::MBC1::new_without_save(data).map(|v| Box::new(v) as Box<dyn MBC>);
+        return mbc3::MBC3::new_without_save(data).map(|v| Box::new(v) as Box<dyn MBC>);
     }
 
     let file = filepath.unwrap();
@@ -81,6 +81,7 @@ fn rom_banks(v: u8) -> usize {
     }
 }
 
+#[allow(dead_code)]
 fn check_checksum(data: &[u8]) -> StrResult<()> {
     let mut value: u8 = 0;
     for i in 0x134..0x14D {

src/mmu/mmu.rs

@@ -58,6 +58,7 @@ fn fill_random(slice: &mut [u8], start: u32) {
 impl<'a> MMU<'a> {
     pub fn new(data: Vec<u8>, file: Option<path::PathBuf>) -> StrResult<MMU<'a>> {
         let mmu_mbc = mbc::get_mbc(data, file)?;
+
         let serial = Serial::new();
         let mut res = MMU {
             wram: [0; WRAM_SIZE],

src/mmu/mod.rs

@@ -1,4 +1,3 @@
 pub mod mmu;
-mod rtc;
 mod serial;
 mod timer;

src/screen/desktop.rs

@@ -15,12 +15,19 @@ use gl::types::*;
 use glutin::event::{ElementState, VirtualKeyCode};
 
 pub struct Glcx {
+    #[allow(unused)]
     tex: GLuint,
+    #[allow(unused)]
     program: GLuint,
+    #[allow(unused)]
     frag: GLuint,
+    #[allow(unused)]
     vert: GLuint,
+    #[allow(unused)]
     ebo: GLuint,
+    #[allow(unused)]
     vbo: GLuint,
+    #[allow(unused)]
     vao: GLuint,
 }
 
@@ -271,6 +278,7 @@ impl Glcx {
         }
     }
 
+    #[allow(dead_code)]
     unsafe fn check_program_link(_gl: &Glcx, program: GLuint) {
         let mut status = gl::FALSE as GLint;
         gl::GetProgramiv(program, gl::LINK_STATUS, &mut status);

src/screen/web.rs

@@ -24,6 +24,7 @@ fn window() -> web_sys::Window {
     web_sys::window().expect("no global `window` exists")
 }
 
+#[allow(unused)]
 fn add_event_listener(listener: &str, f: &Closure<dyn FnMut(web_sys::KeyboardEvent)>) {
     window()
         .add_event_listener_with_callback(listener, f.as_ref().unchecked_ref())