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prevent lda @y or lda @x (which is accepted by the parser) from crashing.

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This commit is contained in:
Kelvin Sherlock 2016-02-23 21:12:07 -05:00
parent 4cc8c97be5
commit 752bd31a3f
2 changed files with 3 additions and 1 deletions
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3
expressionSemantics.c
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@ -1109,7 +1109,8 @@ evaluateExpressionInternally(expressionType *expression, bool isTopLevel, fixupK
evaluateExpression(expressionType *expression, fixupKindType kindOfFixup)
{
valueType *result;
nullEvaluate(expression);
expressionFailed = FALSE;
referencesToNote[currentOperandNumber] = NULL;
result = evaluateExpressionInternally(expression, TRUE, kindOfFixup,

1
operandStuffSD_6502.c
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@ -299,6 +299,7 @@ evaluateOperand(operandType *operand)
case Y_INDEXED_OPND:
result = evaluateExpression(operand->theOperand.expressionUnion,
performingFixups ? NO_FIXUP : OPERAND_FIXUP);
nullEvaluate(result);
if (operand->kindOfOperand != EXPRESSION_OPND) {
if (result->addressMode != EXPRESSION_OPND) {
error(BAD_ADDRESS_MODE_ERROR);