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svc: Do nothing if svcOutputDebugString() is given a length of zero
While unlikely, it does avoid constructing a std::string and unnecessarily calling into the memory code if a game or executable decides to be really silly about their logging.
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@ -274,6 +274,10 @@ static void Break(u64 reason, u64 info1, u64 info2) {
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/// Used to output a message on a debug hardware unit - does nothing on a retail unit
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/// Used to output a message on a debug hardware unit - does nothing on a retail unit
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static void OutputDebugString(VAddr address, u64 len) {
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static void OutputDebugString(VAddr address, u64 len) {
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if (len == 0) {
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return;
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}
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std::string str(len, '\0');
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std::string str(len, '\0');
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Memory::ReadBlock(address, str.data(), str.size());
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Memory::ReadBlock(address, str.data(), str.size());
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LOG_DEBUG(Debug_Emulated, "{}", str);
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LOG_DEBUG(Debug_Emulated, "{}", str);
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