chalharu · chalharu · May 28, 2026 · May 28, 2026 · May 28, 2026 · May 28, 2026
diff --git a/.github/linter-service.yaml b/.github/linter-service.yaml
@@ -1,3 +1,6 @@
+# yamllint disable rule:document-start
 linters:
   cargo-coupling:
     min_grade: C
+    max_critical: 0
+    max_circular: 0
diff --git a/Cargo.lock b/Cargo.lock
diff --git a/Cargo.toml b/Cargo.toml
@@ -37,8 +37,12 @@ members = [
   "sound/openal",
   "sound/filter",
   "sound/traits",
+  "snes/core",
+  "snes/render",
+  "snes/rom_test",
   "sound/android",
   "timer",
+  "util/crc64_hasher",
 ]
 default-members = ["core", "persistence", "console"]
 
@@ -88,6 +92,7 @@ nerust_contract_persistence = { path = "contract/persistence" }
 nerust_contract_rom = { path = "contract/rom" }
 nerust_contract_settings = { path = "contract/settings" }
 nerust_core = { path = "core" }
+nerust_crc64_hasher = { path = "util/crc64_hasher" }
 nerust_gui_runtime = { path = "gui/shared/runtime" }
 nerust_gui_shell = { path = "gui/shared/shell" }
 nerust_gui_session = { path = "gui/shared/session" }
@@ -107,6 +112,9 @@ nerust_screen_physical = { path = "screen/physical" }
 nerust_screen_rgb = { path = "screen/rgb" }
 nerust_screen_wgpu = { path = "screen/wgpu" }
 nerust_screen_video = { path = "screen/video" }
+nerust_snes_core = { path = "snes/core" }
+nerust_snes_render = { path = "snes/render" }
+nerust_snes_rom_test = { path = "snes/rom_test" }
 nerust_serialize = { path = "serialize" }
 nerust_sound_openal = { path = "sound/openal" }
 nerust_sound_android = { path = "sound/android" }
@@ -123,6 +131,7 @@ serde = { version = "=1.0.228", default-features = false }
 serde_bytes = { version = "=0.11.19" }
 serde_derive = { version = "=1.0.228", default-features = false }
 serde_yaml = { version = "=0.9.34" }
+sevenz-rust2 = { version = "=0.21.0", default-features = false }
 shared_library = { version = "=0.1.9" }
 simple_logger = { version = "=5.2.0" }
 strum = { version = "=0.28.0" }

diff --git a/README.md b/README.md
@@ -1,5 +1,5 @@
 <!---
- Copyright (c) 2018 Mitsuharu Seki
+ Copyright (c) 2018 chalharu
 
  This Source Code Form is subject to the terms of the Mozilla Public
  License, v. 2.0. If a copy of the MPL was not distributed with this

diff --git a/backend/opengl/src/lib.rs b/backend/opengl/src/lib.rs
@@ -1,9 +1,3 @@
-// Copyright (c) 2018 Mitsuharu Seki
-//
-// This Source Code Form is subject to the terms of the Mozilla Public
-// License, v. 2.0. If a copy of the MPL was not distributed with this
-// file, You can obtain one at http://mozilla.org/MPL/2.0/.
-
 use nerust_console::video::VideoRenderProfile;
 use nerust_screen_opengl::GlView;
 use std::os::raw::c_void;

diff --git a/backend/wgpu/src/lib.rs b/backend/wgpu/src/lib.rs
@@ -1,9 +1,3 @@
-// Copyright (c) 2018 Mitsuharu Seki
-//
-// This Source Code Form is subject to the terms of the Mozilla Public
-// License, v. 2.0. If a copy of the MPL was not distributed with this
-// file, You can obtain one at http://mozilla.org/MPL/2.0/.
-
 use nerust_console::video::VideoRenderProfile;
 use nerust_screen_video::{VideoFrameFormat, VideoFrameSpec, VideoPresentation};
 use nerust_screen_wgpu::renderer::{

diff --git a/cartridge/data/src/ines.rs b/cartridge/data/src/ines.rs
@@ -1,9 +1,3 @@
-// Copyright (c) 2018 Mitsuharu Seki
-//
-// This Source Code Form is subject to the terms of the Mozilla Public
-// License, v. 2.0. If a copy of the MPL was not distributed with this
-// file, You can obtain one at http://mozilla.org/MPL/2.0/.
-
 use super::{CartridgeParseError, cartridge_data, validate_mirror_mode};
 use nerust_contract_rom::RomFormat;
 use nerust_core::cartridge_data_parts::CartridgeDataParts;

diff --git a/cartridge/data/src/lib.rs b/cartridge/data/src/lib.rs
@@ -1,9 +1,3 @@
-// Copyright (c) 2018 Mitsuharu Seki
-//
-// This Source Code Form is subject to the terms of the Mozilla Public
-// License, v. 2.0. If a copy of the MPL was not distributed with this
-// file, You can obtain one at http://mozilla.org/MPL/2.0/.
-
 mod ines;
 mod nes20;
 

diff --git a/cartridge/data/src/nes20.rs b/cartridge/data/src/nes20.rs
@@ -1,9 +1,3 @@
-// Copyright (c) 2018 Mitsuharu Seki
-//
-// This Source Code Form is subject to the terms of the Mozilla Public
-// License, v. 2.0. If a copy of the MPL was not distributed with this
-// file, You can obtain one at http://mozilla.org/MPL/2.0/.
-
 use super::{CartridgeParseError, cartridge_data, validate_mirror_mode};
 use nerust_contract_rom::RomFormat;
 use nerust_core::cartridge_data_parts::CartridgeDataParts;

diff --git a/console/Cargo.toml b/console/Cargo.toml
@@ -7,14 +7,14 @@ edition.workspace = true
 rust-version.workspace = true
 
 [dependencies]
-crc.workspace = true
 log.workspace = true
 nerust_cartridge_data.workspace = true
 nerust_contract_controller_runtime.workspace = true
 nerust_contract_options.workspace = true
 nerust_contract_persistence.workspace = true
 nerust_contract_rom.workspace = true
 nerust_core.workspace = true
+nerust_crc64_hasher.workspace = true
 nerust_input_nes.workspace = true
 nerust_screen_buffer.workspace = true
 nerust_screen_filter.workspace = true

diff --git a/console/src/lib.rs b/console/src/lib.rs
@@ -1,9 +1,3 @@
-// Copyright (c) 2018 Mitsuharu Seki
-//
-// This Source Code Form is subject to the terms of the Mozilla Public
-// License, v. 2.0. If a copy of the MPL was not distributed with this
-// file, You can obtain one at http://mozilla.org/MPL/2.0/.
-
 pub mod controller;
 mod runner;
 pub mod state;
@@ -14,52 +8,24 @@ use self::runner::data::ConsoleData;
 use self::runner::metrics::SharedConsoleMetrics;
 use self::state::RuntimeStateExport;
 use self::video::ConsoleVideo;
-use crc::{CRC_64_XZ, Crc, Digest};
 use nerust_cartridge_data::parse_cartridge_bytes;
 use nerust_contract_controller_runtime::ControllerRuntime;
 use nerust_contract_options::{CoreOptions, Mmc3IrqVariant};
 use nerust_contract_persistence::CanonicalMediaIdentity;
 use nerust_core::Core;
 use nerust_core::cartridge_rom::CartridgeData;
+use nerust_crc64_hasher::crc64;
 use nerust_screen_buffer::screen_buffer::ScreenBuffer;
 use nerust_screen_filter::FilterType;
 use nerust_screen_logical::LogicalSize;
 use nerust_screen_physical::PhysicalSize;
 use nerust_sound_traits::{MixerInput, Sound};
-use std::hash::Hasher;
 use std::sync::mpsc::{Sender, channel};
 use std::sync::{Arc, RwLock};
 use std::thread;
 use std::thread::JoinHandle;
 use thiserror::Error;
 
-// The old crc crate exposed this reflected CRC-64/XZ variant as crc64::ECMA.
-const CRC64_LEGACY_ECMA: Crc<u64> = Crc::<u64>::new(&CRC_64_XZ);
-
-struct Crc64Hasher(Digest<'static, u64>);
-
-impl Crc64Hasher {
-    fn new() -> Self {
-        Self(CRC64_LEGACY_ECMA.digest())
-    }
-}
-
-impl Hasher for Crc64Hasher {
-    fn write(&mut self, bytes: &[u8]) {
-        self.0.update(bytes);
-    }
-
-    fn finish(&self) -> u64 {
-        self.0.clone().finalize()
-    }
-}
-
-fn crc64(bytes: &[u8]) -> u64 {
-    let mut hasher = Crc64Hasher::new();
-    hasher.write(bytes);
-    hasher.finish()
-}
-
 fn mmc3_irq_variant_label(value: Option<Mmc3IrqVariant>) -> &'static str {
     match value {
         Some(Mmc3IrqVariant::Sharp) => "sharp",

diff --git a/console/src/runner/runtime.rs b/console/src/runner/runtime.rs
@@ -1,6 +1,7 @@
 use super::{ConsoleData, ConsoleRunner};
-use crate::{ConsoleError, ConsoleReply, ConsoleRequestResult, Crc64Hasher};
+use crate::{ConsoleError, ConsoleReply, ConsoleRequestResult};
 use nerust_core::Core;
+use nerust_crc64_hasher::Crc64Hasher;
 use nerust_sound_traits::{MixerInput, Sound};
 use std::hash::{Hash, Hasher};
 use std::sync::mpsc::Sender;

diff --git a/console/src/video.rs b/console/src/video.rs
@@ -31,6 +31,15 @@ pub struct VideoFrameHandle {
 }
 
 impl VideoFrameHandle {
+    pub fn new(width: u32, height: u32, stride_bytes: usize, bytes: Arc<[u8]>) -> Self {
+        Self {
+            width,
+            height,
+            stride_bytes,
+            bytes,
+        }
+    }
+
     pub fn bytes(&self) -> &[u8] {
         self.bytes.as_ref()
     }

diff --git a/contract/mirror/src/lib.rs b/contract/mirror/src/lib.rs
@@ -1,9 +1,3 @@
-// Copyright (c) 2026 Mitsuharu Seki
-//
-// This Source Code Form is subject to the terms of the Mozilla Public
-// License, v. 2.0. If a copy of the MPL was not distributed with this
-// file, You can obtain one at http://mozilla.org/MPL/2.0/.
-
 #[derive(serde_derive::Serialize, serde_derive::Deserialize, Debug, Copy, Clone, PartialEq, Eq)]
 pub enum MirrorMode {
     Horizontal,

diff --git a/contract/options/src/lib.rs b/contract/options/src/lib.rs
@@ -1,9 +1,3 @@
-// Copyright (c) 2026 Mitsuharu Seki
-//
-// This Source Code Form is subject to the terms of the Mozilla Public
-// License, v. 2.0. If a copy of the MPL was not distributed with this
-// file, You can obtain one at http://mozilla.org/MPL/2.0/.
-
 #[derive(
     serde_derive::Serialize, serde_derive::Deserialize, Debug, Clone, Copy, PartialEq, Eq, Default,
 )]

diff --git a/contract/persistence/src/lib.rs b/contract/persistence/src/lib.rs
@@ -1,9 +1,3 @@
-// Copyright (c) 2026 Mitsuharu Seki
-//
-// This Source Code Form is subject to the terms of the Mozilla Public
-// License, v. 2.0. If a copy of the MPL was not distributed with this
-// file, You can obtain one at http://mozilla.org/MPL/2.0/.
-
 use nerust_contract_options::CoreOptions;
 use nerust_contract_rom::RomIdentity;
 use nerust_input_schema::SystemId;

diff --git a/contract/rom/src/lib.rs b/contract/rom/src/lib.rs
@@ -1,9 +1,3 @@
-// Copyright (c) 2026 Mitsuharu Seki
-//
-// This Source Code Form is subject to the terms of the Mozilla Public
-// License, v. 2.0. If a copy of the MPL was not distributed with this
-// file, You can obtain one at http://mozilla.org/MPL/2.0/.
-
 use nerust_contract_mirror::MirrorMode;
 
 #[derive(serde_derive::Serialize, serde_derive::Deserialize, Debug, Clone, Copy, PartialEq, Eq)]