Add the first files (ARMv8 basic emu)

ui/main.cpp

@@ -0,0 +1,19 @@
+#include "core/ARM/cpu.h"
+#include "core/JIT/jit.h"
+
+int main() {
+    CPU cpu;
+    cpu.pc = 0;
+
+    // Simple ARMv8 program in memory (MOVZ X0, #5; ADD X0, X0, #3; RET)
+    // These are placeholders; real encoding will be parsed later
+    cpu.memory[0] = 0x05; // MOVZ placeholder
+    cpu.memory[4] = 0x03; // ADD placeholder
+    cpu.memory[8] = 0xFF; // RET placeholder
+
+    JIT jit;
+    jit.translate_and_run(cpu);
+
+    printf("X0 = %llu\n", cpu.regs[0]);
+    return 0;
+}