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Merge pull request #2422 from acqn/SubFix 

[cc65] Fixed potential errors with subtraction evaluation of identifiers at different memory locations
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Bob Andrews 2024-03-09 13:02:27 +01:00 committed by GitHub
parent a293920fb3 23aa562094
commit 081d18f7d7
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1 changed files with 1 additions and 1 deletions
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src/cc65/expr.c
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@ -3272,7 +3272,7 @@ static void parsesub (ExprDesc* Expr)
/* The right hand side is constant. Check left hand side. */
if (ED_IsQuasiConst (Expr)) {
/* We can't do all 'ptr1 - ptr2' constantly at the moment */
if (Expr->Sym == Expr2.Sym) {
if (ED_GetLoc (Expr) == ED_GetLoc (&Expr2) && Expr->Sym == Expr2.Sym) {
Expr->IVal = (Expr->IVal - Expr2.IVal) / rscale;
/* Get rid of unneeded flags etc. */
ED_MakeConstAbsInt (Expr, Expr->IVal);