Initial commit

Author: tcare

.gitignore

@@ -0,0 +1,2 @@
+build/
+*.nes

APU.h

@@ -0,0 +1,37 @@
+class APU {
+public:
+    APU();
+    ~APU();
+
+    void PowerOn();
+    void Reset();
+
+    void Step();
+
+    uint8_t Read(uint16_t address);
+    void Write(uint16_t address, uint8_t value);
+
+    enum APUAddr : Addr {
+        APUAddr_SQ1_VOL = 0x4000,
+        APUAddr_SQ1_SWEEP = 0x4001,
+        APUAddr_SQ1_LO = 0x4002,
+        APUAddr_SQ1_HI = 0x4003,
+        APUAddr_SQ2_VOL = 0x4004,
+        APUAddr_SQ2_SWEEP = 0x4005,
+        APUAddr_SQ2_LO = 0x4006,
+        APUAddr_SQ2_HI = 0x4007,
+        APUAddr_TRI_LINEAR = 0x4008,
+        APUAddr_TRI_LO = 0x400A,
+        APUAddr_TRI_HI = 0x400B,
+        APUAddr_NOISE_VOL = 0x400C,
+        APUAddr_NOISE_LO = 0x400E,
+        APUAddr_NOISE_HI = 0x400F,
+        APUAddr_DMC_FREQ = 0x4010,
+        APUAddr_DMC_RAW = 0x4011,
+        APUAddr_DMC_START = 0x4012,
+        APUAddr_DMC_LEN = 0x4013,
+        APUAddr_STATUS = 0x4015,
+        APUAddr_FRAME = 0x4017
+    };
+
+};

CMakeLists.txt

@@ -0,0 +1,57 @@
+cmake_minimum_required(VERSION 3.27)
+
+project(nes2)
+
+set(CMAKE_CXX_STANDARD 23)
+set(CMAKE_CXX_STANDARD_REQUIRED true)
+set(CMAKE_CXX_EXTENSIONS false)
+
+include(FetchContent)
+
+# Fetch and add spdlog
+FetchContent_Declare(
+    assert
+    GIT_REPOSITORY https://github.com/jeremy-rifkin/libassert.git
+    GIT_TAG v1.2
+)
+FetchContent_MakeAvailable(assert)
+
+FetchContent_Declare(
+  spdlog
+  GIT_REPOSITORY https://github.com/gabime/spdlog.git
+  GIT_TAG        v1.12.0
+)
+FetchContent_MakeAvailable(spdlog)
+
+add_executable(nes2
+    main.cpp
+    iNES.cpp
+    Cartridge.cpp
+    MMC1.cpp
+    MMU.cpp
+    CPU.cpp
+    SimpleMapper.cpp
+    System.cpp
+)
+
+target_precompile_headers(nes2
+  PRIVATE
+    pch.h
+)
+
+target_link_libraries(nes2
+  PRIVATE
+    assert
+    spdlog::spdlog
+)
+
+add_executable(dump
+  dump.cpp
+  iNES.cpp  
+)
+
+target_link_libraries(dump
+  PRIVATE
+    assert
+    spdlog::spdlog
+)