Start adding memory stuff

src/core/CPU/cpu_dynarmic.cpp

@@ -1,15 +1,16 @@
 #ifdef CPU_DYNARMIC
 #include "cpu_dynarmic.hpp"
 
-CPU::CPU() {
+CPU::CPU(Memory& mem) : mem(mem) {
     // Execute at least 1 instruction.
     // (Note: More than one instruction may be executed.)
-    env.ticks_left = 1;
+    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, 0xE7FE); // b +#0 (infinite loop)
+    env.MemoryWrite16(4, 0xdf45); // swi #69
+    env.MemoryWrite16(6, 0xE7FE); // b +#0 (infinite loop)
 
     // Setup registers.
     auto& regs = jit.Regs();
@@ -25,4 +26,10 @@ CPU::CPU() {
     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

src/core/memory.cpp

@@ -0,0 +1,23 @@
+#include "memory.hpp"
+
+Memory::Memory() {
+	fcram = new uint8_t[128_MB]();
+}
+
+void* Memory::getReadPointer(u32 address) {
+	const auto page = address >> pageShift;
+	const auto offset = address & pageMask;
+
+	uintptr_t pointer = readTable[page];
+	if (pointer == 0) return nullptr;
+	return (void*)(pointer + offset);
+}
+
+void* Memory::getWritePointer(u32 address) {
+	const auto page = address >> pageShift;
+	const auto offset = address & pageMask;
+
+	uintptr_t pointer = writeTable[page];
+	if (pointer == 0) return nullptr;
+	return (void*)(pointer + offset);
+}

src/emulator.cpp

@@ -1,6 +1,8 @@
 #include "emulator.hpp"
 
-void Emulator::reset() {}
+void Emulator::reset() {
+    cpu.reset();
+}
 
 void Emulator::step() {}