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Correctly handle delimiters in character operands

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We weren't checking to see if character operands matched their
delimiters, so bad code like "LDA #'''" was being generated.

There wasn't a test for this in 2006-operand-formats, so the test
has been updated with single and double quotes in low and high ASCII.
This commit is contained in:
Andy McFadden 2019-08-14 17:25:40 -07:00
parent beb1024550
commit 8fd469b81f
9 changed files with 73 additions and 61 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

58
Asm65/Formatter.cs
View File

@ -119,10 +119,9 @@ namespace Asm65 {
public char OpenDelim { get; private set; }
public char CloseDelim { get; private set; }
public string Suffix { get; private set; }
public string FormatStr { get; private set; }
public DelimiterDef(char delim) {
OpenDelim = CloseDelim = delim;
Prefix = Suffix = string.Empty;
public DelimiterDef(char delim) : this(string.Empty, delim, delim, string.Empty) {
}
public DelimiterDef(string prefix, char openDelim, char closeDelim, string suffix) {
Debug.Assert(prefix != null);
@ -131,6 +130,15 @@ namespace Asm65 {
OpenDelim = openDelim;
CloseDelim = closeDelim;
Suffix = suffix;
// Generate format string.
StringBuilder sb = new StringBuilder();
sb.Append(Prefix);
sb.Append(OpenDelim);
sb.Append("{0}");
sb.Append(CloseDelim);
sb.Append(Suffix);
FormatStr = sb.ToString();
}
public override string ToString() {
return Prefix + OpenDelim + '#' + CloseDelim + Suffix;
@ -291,13 +299,6 @@ namespace Asm65 {
private string mAddrFormatNoBank;
private string mAddrFormatWithBank;
// Character data delimiter format strings, processed from the delimiter patterns.
private string mCharDelimAsciiFmt;
private string mCharDelimHighAsciiFmt;
private string mCharDelimC64PetsciiFmt;
private string mCharDelimC64ScreenCodeFmt;
// Generated opcode strings. The index is the bitwise OR of the opcode value and
// the disambiguation value. In most cases this just helps us avoid calling
// ToUpper incessantly.
@ -431,24 +432,6 @@ namespace Asm65 {
Debug.WriteLine("NOTE: char delimiters not set");
chrDelim = DelimiterSet.GetDefaultCharDelimiters();
}
mCharDelimAsciiFmt =
DelimiterDefToFormat(chrDelim.Get(CharEncoding.Encoding.Ascii));
mCharDelimHighAsciiFmt =
DelimiterDefToFormat(chrDelim.Get(CharEncoding.Encoding.HighAscii));
mCharDelimC64PetsciiFmt =
DelimiterDefToFormat(chrDelim.Get(CharEncoding.Encoding.C64Petscii));
mCharDelimC64ScreenCodeFmt =
DelimiterDefToFormat(chrDelim.Get(CharEncoding.Encoding.C64ScreenCode));
}
private string DelimiterDefToFormat(DelimiterDef def) {
StringBuilder sb = new StringBuilder();
sb.Append(def.Prefix);
sb.Append(def.OpenDelim);
sb.Append("{0}");
sb.Append(def.CloseDelim);
sb.Append(def.Suffix);
return sb.ToString();
}
/// <summary>
@ -544,37 +527,36 @@ namespace Asm65 {
return FormatHexValue(value, 2);
}
string fmt;
DelimiterDef delimDef = mFormatConfig.mCharDelimiters.Get(enc);
string fmt = delimDef.FormatStr;
Debug.Assert(fmt != null);
CharEncoding.Convert conv;
switch (enc) {
case CharEncoding.Encoding.Ascii:
fmt = mCharDelimAsciiFmt;
conv = CharEncoding.ConvertAscii;
break;
case CharEncoding.Encoding.HighAscii:
fmt = mCharDelimHighAsciiFmt;
conv = CharEncoding.ConvertHighAscii;
break;
case CharEncoding.Encoding.C64Petscii:
fmt = mCharDelimC64PetsciiFmt;
conv = CharEncoding.ConvertC64Petscii;
break;
case CharEncoding.Encoding.C64ScreenCode:
fmt = mCharDelimC64ScreenCodeFmt;
conv = CharEncoding.ConvertC64ScreenCode;
break;
default:
return FormatHexValue(value, 2);
}
if (string.IsNullOrEmpty(fmt)) {
return FormatHexValue(value, 2);
}
char ch = conv((byte)value);
if (ch == CharEncoding.UNPRINTABLE_CHAR) {
if (ch == CharEncoding.UNPRINTABLE_CHAR || ch == delimDef.OpenDelim ||
ch == delimDef.CloseDelim) {
// We might be able to do better with delimiter clashes, e.g. '\'', but
// that's assembler-specific.
return FormatHexValue(value, 2);
} else {
// possible optimization: replace fmt with a prefix/suffix pair, and just concat
// Possible optimization: replace fmt with a prefix/suffix pair, and just concat
return string.Format(fmt, ch);
}
}

BIN
SourceGen/SGTestData/2006-operand-formats
View File

Binary file not shown.

50
SourceGen/SGTestData/2006-operand-formats.dis65
View File

@ -1,6 +1,6 @@
### 6502bench SourceGen dis65 v1.0 ###
{
"_ContentVersion":1,"FileDataLength":125,"FileDataCrc32":611887040,"ProjectProps":{
"_ContentVersion":1,"FileDataLength":133,"FileDataCrc32":-811370049,"ProjectProps":{
"CpuName":"65816","IncludeUndocumentedInstr":false,"EntryFlags":33489103,"AnalysisParams":{
"AnalyzeUncategorizedData":true,"MinCharsForString":4,"SeekNearbyTargets":true},
"PlatformSymbolFileIdentifiers":[],"ExtensionScriptFileIdentifiers":[],"ProjectSyms":{
@ -19,8 +19,8 @@
"UserLabels":{
"63":{
"Label":"skipdata","Value":4159,"Source":"User","Type":"LocalOrGlobalAddr"},
"104":{
"Label":"more_ascii","Value":4200,"Source":"User","Type":"LocalOrGlobalAddr"}},
"112":{
"Label":"more_ascii","Value":4208,"Source":"User","Type":"LocalOrGlobalAddr"}},
"OperandFormats":{
"4":{
"Length":2,"Format":"NumericLE","SubFormat":"Hex","SymbolRef":null},
@ -93,33 +93,43 @@
"92":{
"Length":2,"Format":"NumericLE","SubFormat":"Ascii","SymbolRef":null},
"94":{
"Length":3,"Format":"NumericLE","SubFormat":"Ascii","SymbolRef":null},
"97":{
"Length":3,"Format":"NumericLE","SubFormat":"Ascii","SymbolRef":null},
"104":{
"Length":1,"Format":"NumericLE","SubFormat":"Ascii","SymbolRef":null},
"105":{
"Length":1,"Format":"NumericLE","SubFormat":"Ascii","SymbolRef":null},
"106":{
"Length":2,"Format":"NumericLE","SubFormat":"Ascii","SymbolRef":null},
"109":{
"Length":2,"Format":"NumericLE","SubFormat":"Address","SymbolRef":null},
"111":{
"Length":3,"Format":"NumericLE","SubFormat":"Address","SymbolRef":null},
"96":{
"Length":2,"Format":"NumericLE","SubFormat":"Ascii","SymbolRef":null},
"98":{
"Length":2,"Format":"NumericLE","SubFormat":"Ascii","SymbolRef":null},
"100":{
"Length":2,"Format":"NumericLE","SubFormat":"Ascii","SymbolRef":null},
"102":{
"Length":3,"Format":"NumericLE","SubFormat":"Ascii","SymbolRef":null},
"105":{
"Length":3,"Format":"NumericLE","SubFormat":"Ascii","SymbolRef":null},
"108":{
"Length":3,"Format":"NumericLE","SubFormat":"Ascii","SymbolRef":null},
"112":{
"Length":1,"Format":"NumericLE","SubFormat":"Ascii","SymbolRef":null},
"113":{
"Length":1,"Format":"NumericLE","SubFormat":"Ascii","SymbolRef":null},
"114":{
"Length":2,"Format":"NumericLE","SubFormat":"Ascii","SymbolRef":null},
"117":{
"Length":2,"Format":"NumericLE","SubFormat":"Address","SymbolRef":null},
"119":{
"Length":3,"Format":"NumericLE","SubFormat":"Address","SymbolRef":null},
"122":{
"Length":2,"Format":"NumericBE","SubFormat":"Address","SymbolRef":null},
"116":{
"124":{
"Length":1,"Format":"NumericLE","SubFormat":"Symbol","SymbolRef":{
"Label":"more_ascii","Part":"Low"}},
"117":{
"125":{
"Length":1,"Format":"NumericLE","SubFormat":"Symbol","SymbolRef":{
"Label":"more_ascii","Part":"High"}},
"118":{
"126":{
"Length":2,"Format":"NumericLE","SubFormat":"Symbol","SymbolRef":{
"Label":"more_ascii","Part":"Low"}},
"120":{
"128":{
"Length":3,"Format":"NumericLE","SubFormat":"Symbol","SymbolRef":{
"Label":"more_ascii","Part":"Low"}},
"123":{
"131":{
"Length":2,"Format":"NumericBE","SubFormat":"Symbol","SymbolRef":{
"Label":"more_ascii","Part":"Low"}}}}

6
SourceGen/SGTestData/Expected/2006-operand-formats_64tass.S
View File

@ -36,11 +36,15 @@ skipdata lda #'h'
lda @l'h'
lda #$1f
lda #' '
lda #'"'
lda #$27
lda #'~'
lda #$7f
lda #$80
lda #$9f
lda #' ' | $80
lda #'"' | $80
lda #$a7
lda #'~' | $80
lda #$ff
rep #'0'
@ -62,4 +66,4 @@ more_ascii .byte 'h'
.byte >more_ascii
.word more_ascii
.long more_ascii
.byte $10,$68
.byte $10,$70

4
SourceGen/SGTestData/Expected/2006-operand-formats_Merlin32.S
View File

@ -33,11 +33,15 @@ skipdata lda #'h'
ldal 'h'
lda #$1f
lda #' '
lda #'"'
lda #$27
lda #'~'
lda #$7f
lda #$80
lda #$9f
lda #" "
lda #$a2
lda #"'"
lda #"~"
lda #$ff
rep #'0'

6
SourceGen/SGTestData/Expected/2006-operand-formats_acme.S
View File

@ -36,11 +36,15 @@ skipdata lda #'h'
lda+3 'h'
lda #$1f
lda #' '
lda #'"'
lda #$27
lda #'~'
lda #$7f
lda #$80
lda #$9f
lda #' ' | $80
lda #'"' | $80
lda #$a7
lda #'~' | $80
lda #$ff
rep #'0'
@ -62,4 +66,4 @@ more_ascii !byte 'h'
!byte >more_ascii
!word more_ascii
!24 more_ascii
!byte $10,$68
!byte $10,$70

4
SourceGen/SGTestData/Expected/2006-operand-formats_cc65.S
View File

@ -37,11 +37,15 @@ skipdata: lda #'h'
lda f:'h'
lda #$1f
lda #' '
lda #'"'
lda #$27
lda #'~'
lda #$7f
lda #$80
lda #$9f
lda #' ' | $80
lda #'"' | $80
lda #$a7
lda #'~' | $80
lda #$ff
rep #'0'

2
SourceGen/SGTestData/Expected/2006-operand-formats_cc65.cfg
View File

@ -1,7 +1,7 @@
# 6502bench SourceGen generated linker script for 2006-operand-formats
MEMORY {
MAIN: file=%O, start=%S, size=65536;
# MEM000: file=%O, start=$1000, size=125;
# MEM000: file=%O, start=$1000, size=133;
}
SEGMENTS {
CODE: load=MAIN, type=rw;

4
SourceGen/SGTestData/Source/2006-operand-formats.S
View File

@ -43,11 +43,15 @@
lda #$1f
lda #$20
lda #$22
lda #$27
lda #$7e
lda #$7f
lda #$80
lda #$9f
lda #$a0
lda #$a2
lda #$a7
lda #$fe
lda #$ff