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Debugger: Fixed expression evaluation when using multi-byte labels

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+ Added "label out of scope" message for watch expressions using labels that can't be evaluated right now (but are valid labels)
This commit is contained in:
Sour 2019-01-16 19:07:50 -05:00
parent 8aa4d4a6ec
commit a67003b347
5 changed files with 24 additions and 5 deletions
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18
Core/ExpressionEvaluator.cpp
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@ -105,6 +105,12 @@ bool ExpressionEvaluator::CheckSpecialTokens(string expression, size_t &pos, str
} else {
string originalExpression = expression.substr(initialPos, pos - initialPos);
bool validLabel = _debugger->GetLabelManager()->ContainsLabel(originalExpression);
if(!validLabel) {
//Check if a multi-byte label exists for this name
string label = originalExpression + "+0";
validLabel = _debugger->GetLabelManager()->ContainsLabel(label);
}
if(validLabel) {
data.Labels.push_back(originalExpression);
output += std::to_string(EvalValues::FirstLabelIndex + data.Labels.size() - 1);
@ -292,12 +298,17 @@ int32_t ExpressionEvaluator::Evaluate(ExpressionData &data, DebugState &state, E
int64_t labelIndex = token - EvalValues::FirstLabelIndex;
if((size_t)labelIndex < data.Labels.size()) {
token = _debugger->GetLabelManager()->GetLabelRelativeAddress(data.Labels[(uint32_t)labelIndex]);
if(token < -1) {
//Label doesn't exist, try to find a matching multi-byte label
string label = data.Labels[(uint32_t)labelIndex] + "+0";
token = _debugger->GetLabelManager()->GetLabelRelativeAddress(label);
}
} else {
token = -1;
token = -2;
}
if(token < 0) {
//Label is no longer valid
resultType = EvalResultType::Invalid;
resultType = token == -1 ? EvalResultType::OutOfScope : EvalResultType::Invalid;
return 0;
}
} else {
@ -502,5 +513,8 @@ void ExpressionEvaluator::RunTests()
test("1+3*3+10/(3+4)", EvalResultType::Numeric, 11);
test("(1+3*3+10)/(3+4)", EvalResultType::Numeric, 2);
test("(1+3*3+10)/3+4", EvalResultType::Numeric, 10);
test("{$4500}", EvalResultType::Numeric, 0x4545);
test("[$4500]", EvalResultType::Numeric, 0x45);
}
#endif

3
Core/ExpressionEvaluator.h
View file

@ -73,7 +73,8 @@ enum EvalResultType : int32_t
Numeric = 0,
Boolean = 1,
Invalid = 2,
DivideBy0 = 3
DivideBy0 = 3,
OutOfScope = 4
};
class StringHasher

4
Core/LabelManager.cpp
View file

@ -159,11 +159,13 @@ int32_t LabelManager::GetLabelRelativeAddress(string &label)
} else if((address & 0x30000000) == 0x30000000) {
type = AddressType::Register;
} else {
//Label is out of scope
return -1;
}
return _mapper->FromAbsoluteAddress(address & 0x0FFFFFFF, type);
}
return -1;
//Label doesn't exist
return -2;
}
bool LabelManager::HasLabelOrComment(uint16_t relativeAddr)

1
GUI.NET/Debugger/WatchManager.cs
View file

@ -49,6 +49,7 @@ namespace Mesen.GUI.Debugger
case EvalResultType.Boolean: newValue = result == 0 ? "false" : "true"; break;
case EvalResultType.Invalid: newValue = "<invalid expression>"; forceHasChanged = true; break;
case EvalResultType.DivideBy0: newValue = "<division by zero>"; forceHasChanged = true; break;
case EvalResultType.OutOfScope: newValue = "<label out of scope>"; forceHasChanged = true; break;
}
}

3
GUI.NET/InteropEmu.cs
View file

@ -2164,7 +2164,8 @@ namespace Mesen.GUI
Numeric = 0,
Boolean = 1,
Invalid = 2,
DivideBy0 = 3
DivideBy0 = 3,
OutOfScope = 4
}
public enum NesModel