Finished primary work on semaphores, implemented mutexing

src/core/hle/kernel/mutex.cpp

@@ -34,7 +34,13 @@ public:
      */
     Result SyncRequest(bool* wait) {
         // TODO(bunnei): ImplementMe
-        locked = true;
+        if (!locked) {
+            locked = true;
+            *wait = false;
+        }
+        else {
+            *wait = true;
+        }
         return 0;
     }
 

src/core/hle/kernel/semaphore.cpp

@@ -34,6 +34,13 @@ public:
      */
     Result SyncRequest(bool* wait) {
         // TODO(bravia): ImplementMe
+        if (count > 0) {
+            count--;
+            *wait = false;
+        }
+        else{
+            *wait = true;
+        }
         return 0;
     }
 
@@ -43,7 +50,10 @@ public:
      * @return Result of operation, 0 on success, otherwise error code
      */
     Result WaitSynchronization(bool* wait) {
-        // TODO(bravia): ImplementMe
+        *wait = (count == 0);
+        if (count == 0) {
+            Kernel::WaitCurrentThread(WAITTYPE_SEMA);
+        }
         return 0;
     }
 };
@@ -52,17 +62,22 @@ public:
 
 /**
  * Releases a semaphore
- * @param unknown
+ * @param the previous count
  * @param handle Handle to mutex to release
- * @param unknown
+ * @param the number of increments to be made
  */
 Result ReleaseSemaphore(s32 * count, Handle handle, s32 release_count) {
     Semaphore* sem = Kernel::g_object_pool.GetFast<Semaphore>(handle);
-
     _assert_msg_(KERNEL, (sem != nullptr), "ReleaseSemaphore tried to release a nullptr sem!");
 
-    //TODO(bravia): ImplementMe
+    *count = sem->count;
-    return 0;
+    if (sem->count + release_count <= sem->max_count) {
+        sem->count += release_count;
+        return 0;
+    }
+    else {
+        return -1;
+    }
 }
 
 /**

src/core/hle/svc.cpp

@@ -284,7 +284,7 @@ Result CreateSemaphore(Handle* sem, s32 initial_count, s32 max_count) {
     return 0;
 }
 
-/// Release a mutex
+/// Release a Semaphore
 Result ReleaseSemaphore(s32* count, Handle handle, s32 releaseCount) {
     DEBUG_LOG(SVC, "called handle=0x%08X", handle);
     _assert_msg_(KERNEL, (handle != 0), "called, but handle is nullptr!");