Split project into multiple files

src/apu.cpp

@@ -0,0 +1,29 @@
+//
+// Created by Palindromic Bread Loaf on 7/21/25.
+//
+
+#include "apu.h"
+
+#include <algorithm>
+
+// APU Implementation
+void APU::Reset() {
+    A = X = Y = 0;
+    SP = 0xFF;
+    PC = 0x0000;
+    PSW = 0x02;
+
+    std::fill(spc_ram, spc_ram + sizeof(spc_ram), 0);
+}
+
+void APU::Step() {
+    // TODO: Implement SPC700 instruction execution
+}
+
+uint8_t APU::ReadSPC(uint16_t address) {
+    return spc_ram[address];
+}
+
+void APU::WriteSPC(uint16_t address, uint8_t value) {
+    spc_ram[address] = value;
+}