Merge pull request #672 from SciresM/to_address_fix

svc:: Fix bug in svcWaitForAddress

src/core/hle/kernel/address_arbiter.cpp

@@ -115,7 +115,7 @@ ResultCode ModifyByWaitingCountAndSignalToAddressIfEqual(VAddr address, s32 valu
     s32 updated_value;
     if (waiting_threads.size() == 0) {
         updated_value = value - 1;
-    } else if (num_to_wake <= 0 || waiting_threads.size() <= num_to_wake) {
+    } else if (num_to_wake <= 0 || waiting_threads.size() <= static_cast<u32>(num_to_wake)) {
         updated_value = value + 1;
     } else {
         updated_value = value;
@@ -140,7 +140,9 @@ ResultCode WaitForAddressIfLessThan(VAddr address, s32 value, s64 timeout, bool
 
     s32 cur_value = static_cast<s32>(Memory::Read32(address));
     if (cur_value < value) {
-        Memory::Write32(address, static_cast<u32>(cur_value - 1));
+        if (should_decrement) {
+            Memory::Write32(address, static_cast<u32>(cur_value - 1));
+        }
     } else {
         return ERR_INVALID_STATE;
     }