Sandbox getting close to running.

src/alloy/backend/ivm/ivm_function.cc

@@ -128,8 +128,6 @@ int IVMFunction::CallImpl(ThreadState* thread_state, uint64_t return_address) {
   ics.return_address = return_address;
   ics.call_return_address = 0;
 
-  volatile int* suspend_flag_address = thread_state->suspend_flag_address();
-
 // TODO(benvanik): DID_CARRY -- need HIR to set a OPCODE_FLAG_SET_CARRY
 //                 or something so the fns can set an ics flag.
 
@@ -139,12 +137,6 @@ int IVMFunction::CallImpl(ThreadState* thread_state, uint64_t return_address) {
 
   uint32_t ia = 0;
   while (true) {
-    // Check suspend. We could do this only on certain instructions, if we
-    // wanted to speed things up.
-    if (*suspend_flag_address) {
-      thread_state->EnterSuspend();
-    }
-
 #ifdef TRACE_SOURCE_OFFSET
     uint64_t source_offset = -1;
     if (source_index < this->source_map_count_ &&

src/alloy/frontend/ppc/ppc_context.h

@@ -199,7 +199,6 @@ typedef struct XECACHEALIGN64 PPCContext_s {
   // Runtime-specific data pointer. Used on callbacks to get access to the
   // current runtime and its data.
   runtime::Runtime*     runtime;
-  volatile int          suspend_flag;
 
   void SetRegFromString(const char* name, const char* value);
   bool CompareRegWithString(const char* name, const char* value,

src/alloy/runtime/runtime.h

@@ -31,7 +31,7 @@ class Runtime {
   typedef std::vector<Module*> ModuleList;
 
  public:
-  Runtime(Memory* memory);
+  explicit Runtime(Memory* memory);
   virtual ~Runtime();
 
   Memory* memory() const { return memory_; }

src/alloy/runtime/thread_state.h

@@ -32,10 +32,8 @@ class ThreadState {
   void* backend_data() const { return backend_data_; }
   void* raw_context() const { return raw_context_; }
 
-  virtual volatile int* suspend_flag_address() const = 0;
-  virtual int Suspend(uint32_t timeout_ms = UINT_MAX) = 0;
-  virtual int Resume(bool force = false) = 0;
-  virtual void EnterSuspend() = 0;
+  virtual int Suspend(uint32_t timeout_ms = UINT_MAX) { return 1; }
+  virtual int Resume(bool force = false) { return 1; }
 
   static void Bind(ThreadState* thread_state);
   static ThreadState* Get();

src/xenia/cpu/xenon_thread_state.cc

@@ -23,13 +23,12 @@ using namespace xe::cpu;
 XenonThreadState::XenonThreadState(
     XenonRuntime* runtime, uint32_t thread_id,
     size_t stack_size, uint64_t thread_state_address) :
-    stack_size_(stack_size), thread_state_address_(thread_state_address),
-    ThreadState(runtime, thread_id) {
+    ThreadState(runtime, thread_id),
+    stack_size_(stack_size),
+    thread_state_address_(thread_state_address) {
   stack_address_ = memory_->HeapAlloc(
       0, stack_size, MEMORY_FLAG_ZERO);
 
-  debug_break_ = CreateEvent(NULL, FALSE, FALSE, NULL);
-
   // Allocate with 64b alignment.
   context_ = (PPCContext*)xe_malloc_aligned(sizeof(PPCContext));
   assert_true(((uint64_t)context_ & 0xF) == 0);
@@ -60,40 +59,9 @@ XenonThreadState::XenonThreadState(
 XenonThreadState::~XenonThreadState() {
   runtime_->debugger()->OnThreadDestroyed(this);
 
-  CloseHandle(debug_break_);
-
   alloy::tracing::WriteEvent(EventType::ThreadDeinit({
   }));
 
   xe_free_aligned(context_);
   memory_->HeapFree(stack_address_, stack_size_);
 }
-
-volatile int* XenonThreadState::suspend_flag_address() const {
-  return &context_->suspend_flag;
-}
-
-int XenonThreadState::Suspend(uint32_t timeout_ms) {
-  // Set suspend flag.
-  // One of the checks should call in to OnSuspend() at some point.
-  poly::atomic_inc(&context_->suspend_flag);
-  return 0;
-}
-
-int XenonThreadState::Resume(bool force) {
-  if (context_->suspend_flag) {
-    if (force) {
-      context_->suspend_flag = 0;
-      SetEvent(debug_break_);
-    } else {
-      if (!poly::atomic_dec(&context_->suspend_flag)) {
-        SetEvent(debug_break_);
-      }
-    }
-  }
-  return 0;
-}
-
-void XenonThreadState::EnterSuspend() {
-  WaitForSingleObject(debug_break_, INFINITE);
-}

src/xenia/cpu/xenon_thread_state.h

@@ -34,11 +34,6 @@ public:
   uint64_t thread_state_address() const { return thread_state_address_; }
   PPCContext* context() const { return context_; }
 
-  virtual volatile int* suspend_flag_address() const;
-  virtual int Suspend(uint32_t timeout_ms = UINT_MAX);
-  virtual int Resume(bool force = false);
-  virtual void EnterSuspend();
-
 private:
   uint64_t  stack_address_;
   size_t    stack_size_;
@@ -46,8 +41,6 @@ private:
 
   // NOTE: must be 64b aligned for SSE ops.
   PPCContext* context_;
-
-  HANDLE    debug_break_;
 };
 
 

tools/alloy-sandbox/alloy-sandbox.cc

@@ -7,12 +7,12 @@
  ******************************************************************************
  */
 
-#include <xenia/xenia.h>
 #include <alloy/alloy.h>
-
 #include <alloy/runtime/raw_module.h>
+#include <xenia/export_resolver.h>
 #include <xenia/cpu/xenon_memory.h>
 #include <xenia/cpu/xenon_runtime.h>
+#include <xenia/cpu/xenon_thread_state.h>
 
 #include <gflags/gflags.h>
 
@@ -22,7 +22,6 @@ using namespace alloy::runtime;
 using namespace xe;
 using namespace xe::cpu;
 
-
 int alloy_sandbox(int argc, xechar_t** argv) {
   Profiler::Initialize();
   xe::Profiler::ThreadEnter("main");
@@ -43,8 +42,8 @@ int alloy_sandbox(int argc, xechar_t** argv) {
   module->LoadFile(0x82000000, "test\\codegen\\instr_add.bin");
   runtime->AddModule(module);
 
-  XenonThreadState* thread_state = new XenonThreadState(
-      runtime, 100, 64 * 1024, 0);
+  XenonThreadState* thread_state =
+      new XenonThreadState(runtime, 100, 64 * 1024, 0);
 
   Function* fn;
   runtime->ResolveFunction(0x82000000, &fn);
@@ -54,6 +53,7 @@ int alloy_sandbox(int argc, xechar_t** argv) {
   ctx->r[25] = 25;
   fn->Call(thread_state, ctx->lr);
   auto result = ctx->r[11];
+  printf("%llu", result);
 
   delete thread_state;