Start adding memory stuff

src/core/CPU/cpu_dynarmic.cpp

@@ -0,0 +1,35 @@
+#ifdef CPU_DYNARMIC
+#include "cpu_dynarmic.hpp"
+
+CPU::CPU(Memory& mem) : mem(mem) {
+    // Execute at least 1 instruction.
+    // (Note: More than one instruction may be executed.)
+    env.ticks_left = 10;
+
+    // Write some code to memory.
+    env.MemoryWrite16(0, 0x0088); // lsls r0, r1, #2
+    env.MemoryWrite16(2, 0x3045); // adds r0, #69
+    env.MemoryWrite16(4, 0xdf45); // swi #69
+    env.MemoryWrite16(6, 0xE7FE); // b +#0 (infinite loop)
+
+    // Setup registers.
+    auto& regs = jit.Regs();
+    regs[0] = 1;
+    regs[1] = 2;
+    regs[15] = 0; // PC = 0
+    setCPSR(0x00000030); // Thumb mode
+
+    // Execute!
+    jit.Run();
+
+    // Here we would expect cpu.Regs()[0] == 77
+    printf("R0: %u\n", jit.Regs()[0]);
+}
+
+void CPU::reset() {
+    jit.Regs().fill(0);
+    // ARM mode, all flags disabled, interrupts and aborts all enabled, user mode
+    setCPSR(0x00000010);
+}
+
+#endif // CPU_DYNARMIC