Added Makefile and made things run on my machine (im sorry ); )

Makefile

@@ -0,0 +1,29 @@
+CXX := g++
+CXXFLAGS := -std=c++17 -Wall -Wextra -Icore -Icore/ARM -Icore/audio -Icore/fs -Icore/gpu/emu -Icore/gpu/vk -Icore/JIT
+
+SRC := \
+    ui/main.cpp \
+    core/audio/audio.cpp \
+    core/fs/fs.cpp \
+    core/gpu/emu/emugpu.cpp \
+    core/gpu/vk/emugpuvk.cpp \
+    core/JIT/jit.cpp
+
+OBJ := $(SRC:.cpp=.o)
+TARGET := app
+
+all: $(TARGET)
+
+$(TARGET): $(OBJ)
+	$(CXX) $(OBJ) -o $(TARGET)
+
+%.o: %.cpp
+	$(CXX) $(CXXFLAGS) -c $< -o $@
+
+clean:
+	rm -f $(OBJ) $(TARGET)
+
+run: $(TARGET)
+	./$(TARGET)
+
+.PHONY: all clean

core/JIT/jit.cpp

@@ -1,4 +1,4 @@
-#include "core/JIT/jit.h"
+#include "jit.h"
 #include <sys/mman.h>
 #include <cstring>
 #include <cstdio>
@@ -6,13 +6,15 @@
 
 using JitFunc = void (*)();
 
-void JIT::translate_and_run(CPU& cpu) {
+void JIT::translate_and_run(CPU &cpu)
+{
     uint8_t *code = (uint8_t *)mmap(nullptr, 64, PROT_READ | PROT_WRITE | PROT_EXEC,
                                     MAP_PRIVATE | MAP_ANON, -1, 0);
     size_t offset = 0;
 
     // Decode mock instructions from cpu.memory
-    if (cpu.memory[0] == 0x05) { // MOVZ placeholder
+    if (cpu.memory[0] == 0x05)
+    {                          // MOVZ placeholder
         code[offset++] = 0x48; // mov rax, imm64
         code[offset++] = 0xB8;
         uint64_t imm = 5;
@@ -20,7 +22,8 @@ void JIT::translate_and_run(CPU& cpu) {
         offset += 8;
     }
 
-    if (cpu.memory[4] == 0x03) { // ADD placeholder
+    if (cpu.memory[4] == 0x03)
+    {                          // ADD placeholder
         code[offset++] = 0x48; // add rax, imm32
         code[offset++] = 0x05;
         uint32_t addval = 3;
@@ -37,8 +40,7 @@ void JIT::translate_and_run(CPU& cpu) {
         "mov %%rax, %0\n"
         : "=r"(result)
         : "r"(fn)
-        : "%rax"
-    );
+        : "%rax");
 
     cpu.regs[0] = result;
 }

core/JIT/jit.h

@@ -1,8 +1,9 @@
 #ifndef JIT_H
 #define JIT_H
-#include "core/ARM/cpu.h"
+#include "cpu.h"
 
-class JIT {
+class JIT
+{
 public:
     void translate_and_run(CPU &cpu);
 };

ui/main.cpp

@@ -1,7 +1,10 @@
-#include "core/ARM/cpu.h"
-#include "core/JIT/jit.h"
+#include "cpu.h"
+#include "jit.h"
 
-int main() {
+#include <cstdio>
+
+int main()
+{
     CPU cpu;
     cpu.pc = 0;