Increase NotifyObservers data arg to uint16_t from uint8_t

src/app/emu/audio/apu.cc

@@ -1,5 +1,7 @@
 #include "app/emu/audio/apu.h"
 
+#include <SDL.h>
+
 #include <cstdint>
 #include <functional>
 #include <iostream>
@@ -50,7 +52,7 @@ void Apu::Update() {
   ProcessSamples();
 }
 
-void Apu::Notify(uint32_t address, uint8_t data) {
+void Apu::Notify(uint32_t address, uint16_t data) {
   if (address < 0x2140 || address > 0x2143) {
     return;
   }
@@ -58,12 +60,11 @@ void Apu::Notify(uint32_t address, uint8_t data) {
   spc700_.write(offset, data);
 
   // HACK - This is a temporary solution to get the Apu to play audio
+  SDL_Log("Apu::Notify(0x%08x, 0x%04x)", address, data);
   ports_[address - 0x2140] = data;
   switch (address) {
     case 0x2140:
-      if (data == BEGIN_SIGNAL) {
-        SignalReady();
-      }
+      SignalReady();
       break;
     case 0x2141:
       // TODO: Handle data byte transfer here
@@ -135,7 +136,7 @@ void Apu::WriteDspMemory(uint16_t address, uint8_t value) {
   dsp_.WriteGlobalReg(address, value);
 }
 
-} // namespace audio
+}  // namespace audio
 }  // namespace emu
 }  // namespace app
 }  // namespace yaze

src/app/emu/audio/apu.h

@@ -60,7 +60,7 @@ class Apu : public Observer {
   void Init();
   void Reset();
   void Update();
-  void Notify(uint32_t address, uint8_t data) override;
+  void Notify(uint32_t address, uint16_t data) override;
 
   void ProcessSamples();
   uint8_t FetchSampleForVoice(uint8_t voice_num);

src/app/emu/emulator.cc

@@ -50,7 +50,6 @@ using ImGui::Text;
 
 void Emulator::Run() {
   if (!snes_.running() && rom()->is_loaded()) {
-    snes_.SetupMemory(*rom());
     snes_.Init(*rom());
   }
 
@@ -78,7 +77,7 @@ void Emulator::RenderNavBar() {
   gui::zeml::Render(navbar_node);
 
   if (ImGui::Button(ICON_MD_PLAY_ARROW)) {
-    loading_ = true;
+    running_ = true;
   }
   if (ImGui::IsItemHovered()) {
     ImGui::SetTooltip("Start Emulation");
@@ -86,7 +85,7 @@ void Emulator::RenderNavBar() {
   SameLine();
 
   if (ImGui::Button(ICON_MD_PAUSE)) {
-    snes_.SetCpuMode(1);
+    running_ = false;
   }
   if (ImGui::IsItemHovered()) {
     ImGui::SetTooltip("Pause Emulation");

src/app/emu/memory/memory.h

@@ -94,7 +94,7 @@ class RomInfo {
 class Observer {
  public:
   virtual ~Observer() = default;
-  virtual void Notify(uint32_t address, uint8_t data) = 0;
+  virtual void Notify(uint32_t address, uint16_t data) = 0;
 };
 
 constexpr uint32_t kROMStart = 0x008000;
@@ -401,7 +401,7 @@ class MemoryImpl : public Memory, public Loggable {
     return address;  // Return the original address if no mapping is defined
   }
 
-  void NotifyObservers(uint32_t address, uint8_t data) const {
+  void NotifyObservers(uint32_t address, uint16_t data) const {
     for (auto observer : observers_) {
       observer->Notify(address, data);
     }

src/app/emu/video/ppu.cc

@@ -45,6 +45,7 @@ void Ppu::UpdateInternalState(int cycles) {
 }
 
 void Ppu::RenderScanline() {
+  /**
   for (int y = 0; y < 240; ++y) {
     for (int x = 0; x < 256; ++x) {
       // Calculate the color index based on the x and y coordinates
@@ -54,6 +55,7 @@ void Ppu::RenderScanline() {
       frame_buffer_[y * 256 + x] = color_index;
     }
   }
+  */
 
   // Fetch tile data from VRAM, tile map from memory, palette data from CGRAM
   UpdateTileData();
@@ -64,25 +66,18 @@ void Ppu::RenderScanline() {
     RenderBackground(layer);
   }
 
-  // Render the sprite layer, taking into account sprite priorities and
-  // transparency
-  RenderSprites();  // Renders the sprite layer into an internal sprite buffer
-
-  // Apply effects to the layers, such as scaling, rotation, and blending
-  ApplyEffects();  // Applies effects to the layers based on the current mode
-                   // and register settings
-
-  // Combine the layers into a single image and store it in the frame buffer
-  ComposeLayers();  // Combines the layers into a single image and stores it in
-                    // the frame buffer
+  RenderSprites();
+  ApplyEffects();
+  ComposeLayers();
 
   // Display the frame buffer on the screen
   DisplayFrameBuffer();
 }
 
-void Ppu::Notify(uint32_t address, uint8_t data) {
+void Ppu::Notify(uint32_t address, uint16_t data) {
   // Handle communication in the Ppu.
   if (address >= 0x2100 && address <= 0x213F) {
+    SDL_Log("Ppu::Notify(0x%08x, 0x%04x)", address, data);
     // Handle register notification
     switch (address) {
       case INIDISP:
@@ -380,35 +375,22 @@ void Ppu::UpdateTileData() {
 void Ppu::UpdateTileMapData() {}
 
 void Ppu::RenderBackground(int layer) {
-  auto bg1_tilemap_info = BGSC(0);
-  auto bg1_chr_data = BGNBA(0);
-  auto bg2_tilemap_info = BGSC(0);
-  auto bg2_chr_data = BGNBA(0);
-  auto bg3_tilemap_info = BGSC(0);
-  auto bg3_chr_data = BGNBA(0);
-  auto bg4_tilemap_info = BGSC(0);
-  auto bg4_chr_data = BGNBA(0);
-
   switch (layer) {
     case 1:
       // Render the first background layer
-      bg1_tilemap_info = BGSC(memory_.ReadByte(BG1SC));
-      bg1_chr_data = BGNBA(memory_.ReadByte(BG12NBA));
+
       break;
     case 2:
       // Render the second background layer
-      bg2_tilemap_info = BGSC(memory_.ReadByte(BG2SC));
-      bg2_chr_data = BGNBA(memory_.ReadByte(BG12NBA));
+
       break;
     case 3:
       // Render the third background layer
-      bg3_tilemap_info = BGSC(memory_.ReadByte(BG3SC));
-      bg3_chr_data = BGNBA(memory_.ReadByte(BG34NBA));
+
       break;
     case 4:
       // Render the fourth background layer
-      bg4_tilemap_info = BGSC(memory_.ReadByte(BG4SC));
-      bg4_chr_data = BGNBA(memory_.ReadByte(BG34NBA));
+
       break;
     default:
       // Invalid layer, do nothing

src/app/emu/video/ppu.h

@@ -289,7 +289,7 @@ class Ppu : public Observer, public SharedRom {
   // Renders a scanline of the screen
   void RenderScanline();
 
-  void Notify(uint32_t address, uint8_t data) override;
+  void Notify(uint32_t address, uint16_t data) override;
 
   // Returns the pixel data for the current frame
   const std::vector<uint8_t>& GetFrameBuffer() const { return frame_buffer_; }

src/cli/command_handler.h

@@ -324,7 +324,6 @@ class Emulator : public CommandHandler {
       step = true;
     }
 
-    snes.SetupMemory(rom_);
     snes.Init(rom_);
 
     if (!step) {