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Check both directions for project/platform "nearby" matches

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If a symbol is defined at <addr>, and we counter STA <addr>-1,Y,
we want to use the symbol in the operand.  This worked for labels
but not project/platform symbols.

Also, fixed a crash that happened if you tried to delete an auto
label.
This commit is contained in:
Andy McFadden 2019-09-12 14:24:09 -07:00
parent 81157b6b47
commit 1631cd77f6
6 changed files with 34 additions and 12 deletions
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15
SourceGen/DisasmProject.cs
View File

@ -1075,6 +1075,21 @@ namespace SourceGen {
if (sym == null && (attr.OperandAddress & 0xffff) > 1 && checkNearby) {
sym = SymbolTable.FindAddressByValue(attr.OperandAddress - 2);
}
// Still nothing, try addr+1. Sometimes indexed addressing will use
// "STA addr-1,y". This will also catch "STA addr-1" when addr is the
// very start of a segment, which means we're actually finding a label
// reference rather than project/platform symbol; only works if the
// location already has a label.
if (sym == null && (attr.OperandAddress & 0xffff) < 0xffff && checkNearby) {
sym = SymbolTable.FindAddressByValue(attr.OperandAddress + 1);
if (sym != null && sym.SymbolSource != Symbol.Source.Project &&
sym.SymbolSource != Symbol.Source.Platform) {
Debug.WriteLine("Applying non-platform in GeneratePlatform: " + sym);
// should be okay to do this
}
}
// If we found something, and it's not a variable, create a descriptor.
if (sym != null && !sym.IsVariable) {
mAnattribs[offset].DataDescriptor =
FormatDescriptor.Create(mAnattribs[offset].Length,

15
SourceGen/MainController.cs
View File

@ -1624,10 +1624,17 @@ namespace SourceGen {
if (mProject.UserLabels.ContainsKey(offset)) {
oldUserValue = mProject.UserLabels[offset];
}
UndoableChange uc = UndoableChange.CreateLabelChange(offset,
oldUserValue, dlg.LabelSym);
ChangeSet cs = new ChangeSet(uc);
ApplyUndoableChanges(cs);
if (oldUserValue == dlg.LabelSym) {
// Only expected when attr.Symbol is Auto
Debug.Assert(attr.Symbol.SymbolSource == Symbol.Source.Auto);
Debug.Assert(oldUserValue == null);
Debug.WriteLine("Ignoring attempt to delete an auto label");
} else {
UndoableChange uc = UndoableChange.CreateLabelChange(offset,
oldUserValue, dlg.LabelSym);
ChangeSet cs = new ChangeSet(uc);
ApplyUndoableChanges(cs);
}
}
}

4
SourceGen/SGTestData/Expected/2008-address-changes_64tass.S
View File

@ -55,8 +55,8 @@ L2080 bit L2080
jsr offend
lda offend+1
jsr offend+1
lda $207f
jsr $207f
lda L2080-1
jsr L2080-1
lda L2080
jsr L2080
lda $00

4
SourceGen/SGTestData/Expected/2008-address-changes_Merlin32.S
View File

@ -47,8 +47,8 @@ L2080 bit L2080
jsr offend
lda offend+1
jsr offend+1
lda $207f
jsr $207f
lda L2080-1
jsr L2080-1
lda L2080
jsr L2080
lda $00

4
SourceGen/SGTestData/Expected/2008-address-changes_acme.S
View File

@ -55,8 +55,8 @@ L2080 bit L2080
jsr offend
lda offend+1
jsr offend+1
lda $207f
jsr $207f
lda L2080-1
jsr L2080-1
lda L2080
jsr L2080
lda $00

4
SourceGen/SGTestData/Expected/2008-address-changes_cc65.S
View File

@ -57,8 +57,8 @@ L2080: bit L2080
jsr offend
lda offend+1
jsr offend+1
lda $207f
jsr $207f
lda L2080-1
jsr L2080-1
lda L2080
jsr L2080
lda $00