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Apply project/platform symbols to Numeric/Address data operands

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A ".dd2 <address>" item would get linked to an internal label, but
references to external addresses weren't doing the appropriate
search through the platform/project symbol list.

This change altered the output of the 2019-local-variables test.
The previous behavior was restored by disabling "nearby" symbol
matching in the project properties.

Updated the "lookup symbol by address" function to ignore local
variables.

Also, minor updates to Applesoft and F8-ROM symbol tables.
This commit is contained in:
Andy McFadden 2019-09-15 14:19:45 -07:00
parent 6f81d748ee
commit 2828cc8ca7
9 changed files with 60 additions and 27 deletions
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48
SourceGen/DisasmProject.cs
View File

@ -1069,6 +1069,8 @@ namespace SourceGen {
for (int offset = 0; offset < mAnattribs.Length; ) {
Anattrib attr = mAnattribs[offset];
Symbol sym;
int address;
if (attr.IsInstructionStart && attr.DataDescriptor == null &&
attr.OperandAddress >= 0 && attr.OperandOffset < 0) {
// Has an operand address, but not an offset, meaning it's a reference
@ -1083,29 +1085,56 @@ namespace SourceGen {
// Using the full symbol table is potentially a tad less efficient than
// looking for a match exclusively in project/platform symbols, but it's
// the correct thing to do.
Symbol sym = SymbolTable.FindAddressByValue(attr.OperandAddress);
address = attr.OperandAddress;
sym = SymbolTable.FindNonVariableByAddress(address);
} else if (attr.IsDataStart && attr.DataDescriptor != null &&
attr.DataDescriptor.IsNumeric &&
attr.DataDescriptor.FormatSubType == FormatDescriptor.SubType.Address) {
// Found a Numeric/Address item that matches. Data items don't have
// OperandAddress or OperandOffset set, so we need to check manually to
// see if the address falls within the project. In most situations this
// isn't really necessary, because the data analysis pass will have resolved
// interal references to auto-generated labels.
//
// This is only firing if the item is explicitly formatted as an
// Address, so we're essentially "upgrading" the user format.
address = RawData.GetWord(mFileData, offset, attr.DataDescriptor.Length,
attr.DataDescriptor.FormatType == FormatDescriptor.Type.NumericBE);
if (AddrMap.AddressToOffset(offset, address) < 0) {
sym = SymbolTable.FindNonVariableByAddress(address);
} else {
Debug.WriteLine("Found unhandled internal data addr ref at +" +
offset.ToString("x6"));
address = -1; // don't touch interior stuff
sym = null;
}
} else {
address = -1;
sym = null;
}
if (address >= 0) {
// If we didn't find it, check addr-1. This is very helpful when working
// with pointers, because it gets us references to "PTR+1" when "PTR" is
// defined. (It's potentially helpful in labeling the "near side" of an
// address map split as well, since the first byte past is an external
// address, and a label at the end of the current region will be offset
// from by this.)
if (sym == null && (attr.OperandAddress & 0xffff) > 0 && checkNearby) {
sym = SymbolTable.FindAddressByValue(attr.OperandAddress - 1);
if (sym == null && (address & 0xffff) > 0 && checkNearby) {
sym = SymbolTable.FindNonVariableByAddress(address - 1);
}
// If that didn't work, try addr-2. Good for 24-bit addresses and jump
// vectors that start with a JMP instruction.
if (sym == null && (attr.OperandAddress & 0xffff) > 1 && checkNearby) {
sym = SymbolTable.FindAddressByValue(attr.OperandAddress - 2);
if (sym == null && (address & 0xffff) > 1 && checkNearby) {
sym = SymbolTable.FindNonVariableByAddress(address - 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 && (address & 0xffff) < 0xffff && checkNearby) {
sym = SymbolTable.FindNonVariableByAddress(address + 1);
if (sym != null && sym.SymbolSource != Symbol.Source.Project &&
sym.SymbolSource != Symbol.Source.Platform) {
Debug.WriteLine("Applying non-platform in GeneratePlatform: " + sym);
@ -1118,11 +1147,6 @@ namespace SourceGen {
mAnattribs[offset].DataDescriptor =
FormatDescriptor.Create(mAnattribs[offset].Length,
new WeakSymbolRef(sym.Label, WeakSymbolRef.Part.Low), false);
// Used to do this here; now do it in GenerateXrefs() so we can
// pick up user-edited operand formats that reference project symbols.
//(sym as DefSymbol).Xrefs.Add(new XrefSet.Xref(offset,
// XrefSet.XrefType.NameReference, 0));
}
}

2
SourceGen/RuntimeData/Apple/Applesoft.sym65
View File

@ -6,6 +6,7 @@
*SYNOPSIS Applesoft BASIC addresses and constants
USRVEC @ $0A ;USR() command vector
HCOLOR1 @ $1C ;hi-res color mask
COUNTH @ $1D ;hi-res high-order byte of step for line
HBASL @ $26 ;base address for hi-res drawing
@ -23,6 +24,7 @@ CURLIN @ $75 ;Applesoft current line number (2b)
FACMO @ $A0 ;middle-order byte of mantissa of FAC
FACLO @ $A1 ;low-order byte of mantissa of FAC
FACSIGN @ $A2 ;single byte sign of FAC
PRGEND @ $AF ;pointer to end of program (2b)
CHRGET @ $B1 ;get next character or Applesoft token
CHRGOT @ $B7 ;get next, but don't advance TXTPTR
TXTPTR @ $B8 ;points at next char or token

15
SourceGen/RuntimeData/Apple/F8-ROM.sym65
View File

@ -13,7 +13,10 @@ WNDTOP @ $22 ;top of scroll window
WNDBTM @ $23 ;bottom of scsroll window
CH @ $24 ;cursor horizontal displacement
CV @ $25 ;cursor vertical displacement
GBASL @ $26 ;base address for lo-res drawing
GBASL @ $26 ;base address for lo-res drawing (lo)
GBASH @ $27 ;base address for lo-res drawing (hi)
H2 @ $2C ;right end of horizontal line drawn by HLINE
V2 @ $2D ;bottom of vertical line drawn by VLINE
INVFLAG @ $32 ;text mask (255=normal, 127=flash, 63=inv)
PROMPT @ $33 ;prompt character
CSWL @ $36 ;character output hook (lo)
@ -24,12 +27,14 @@ PCL @ $3A ;program counter save
PCH @ $3B ;program counter save
A1L @ $3C ;general purpose
A1H @ $3D ;general purpose
A2L @ $3E ;general purpose
A2H @ $3F ;general purpose
SPDBYT @ $E7 ;text output speed limiter
SPDBYT @ $F1 ;text output speed limiter
BRKV @ $03f0 ;address of BRK handler
SOFTEVEC @ $03f2 ;address of RESET handler
PWREDUP @ $03f4 ;power-up RESET checksum
BRKV @ $03F0 ;address of BRK handler
SOFTEVEC @ $03F2 ;address of RESET handler
PWREDUP @ $03F4 ;power-up RESET checksum
USRADDR @ $03F8 ;jump to function that handles monitor Ctrl-Y
NMIVEC @ $03FB ;jump to function that handles NMI
IRQADDR @ $03FE ;address of IRQ handler

4
SourceGen/SGTestData/2019-local-variables.dis65
View File

@ -2,7 +2,7 @@
{
"_ContentVersion":2,"FileDataLength":137,"FileDataCrc32":708791740,"ProjectProps":{
"CpuName":"65816","IncludeUndocumentedInstr":false,"EntryFlags":32702671,"AutoLabelStyle":"Simple","AnalysisParams":{
"AnalyzeUncategorizedData":true,"DefaultTextScanMode":"LowHighAscii","MinCharsForString":4,"SeekNearbyTargets":true,"SmartPlpHandling":false},
"AnalyzeUncategorizedData":true,"DefaultTextScanMode":"LowHighAscii","MinCharsForString":4,"SeekNearbyTargets":false,"SmartPlpHandling":false},
"PlatformSymbolFileIdentifiers":[],"ExtensionScriptFileIdentifiers":[],"ProjectSyms":{
"CONST_ONE":{
"DataDescriptor":{
@ -31,7 +31,7 @@
"Low":0,"High":0,"Hint":"Code"}],"StatusFlagOverrides":{
},
"Comments":{
},
"4":"could be PROJ_ONE+2, but \"nearby\" is off"},
"LongComments":{
"-2147483647":{
"Text":"Edited to have duplicate labels (PROJ_ZERO, DPCODE).","BoxMode":false,"MaxWidth":80,"BackgroundColor":0},

2
SourceGen/SGTestData/Expected/2019-local-variables_64tass.S
View File

@ -9,7 +9,7 @@ CONST_ZERO = $f0 ;project const
.xs
ldy PROJ_ZERO
lda (PROJ_ONE),y
sta $03
sta $03 ;could be PROJ_ONE+2, but "nearby" is off
ldx $04
lda CONST_ZERO,s
sta $f1,s

2
SourceGen/SGTestData/Expected/2019-local-variables_Merlin32.S
View File

@ -6,7 +6,7 @@ CONST_ZERO equ $f0 ;project const
org $1000
ldy PROJ_ZERO
lda (PROJ_ONE),y
sta $03
sta $03 ;could be PROJ_ONE+2, but "nearby" is off
ldx $04
lda CONST_ZERO,S
sta $f1,S

2
SourceGen/SGTestData/Expected/2019-local-variables_acme.S
View File

@ -9,7 +9,7 @@ CONST_ZERO = $f0 ;project const
!rs
ldy PROJ_ZERO
lda (PROJ_ONE),y
sta $03
sta $03 ;could be PROJ_ONE+2, but "nearby" is off
ldx $04
lda CONST_ZERO,S
sta $f1,S

2
SourceGen/SGTestData/Expected/2019-local-variables_cc65.S
View File

@ -10,7 +10,7 @@ CONST_ZERO = $f0 ;project const
.i8
ldy PROJ_ZERO
lda (PROJ_ONE),y
sta $03
sta $03 ;could be PROJ_ONE+2, but "nearby" is off
ldx $04
lda CONST_ZERO,S
sta $f1,S

10
SourceGen/SymbolTable.cs
View File

@ -144,11 +144,12 @@ namespace SourceGen {
}
/// <summary>
/// Searches the table for symbols with matching address values. Ignores constants.
/// Searches the table for symbols with matching address values. Ignores constants and
/// variables.
/// </summary>
/// <param name="value">Value to find.</param>
/// <returns>First matching symbol found, or null if nothing matched.</returns>
public Symbol FindAddressByValue(int value) {
public Symbol FindNonVariableByAddress(int value) {
// Get sorted list of values. This is documented as efficient.
IList<Symbol> values = mSymbolsByValue.Values;
@ -169,8 +170,9 @@ namespace SourceGen {
while (mid > 0 && values[mid - 1].Value == value) {
mid--;
}
// now skip past constants
while (mid < values.Count && values[mid].SymbolType == Symbol.Type.Constant) {
// now skip past constants and variables
while (mid < values.Count && (values[mid].SymbolType == Symbol.Type.Constant ||
values[mid].SymbolSource == Symbol.Source.Variable)) {
//Debug.WriteLine("disregarding " + values[mid]);
mid++;
}