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Fix a problem with conditional assembly: The scanner has to be switched into
raw token mode when skipping a section of input because otherwise pseudo functions may trigger errors. git-svn-id: svn://svn.cc65.org/cc65/trunk@5033 b7a2c559-68d2-44c3-8de9-860c34a00d81
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uz
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6a56201046
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6a48359d23
@ -56,16 +56,19 @@
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/* Set of bitmapped flags for the if descriptor */
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enum {
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ifNone = 0x0000, /* No flag */
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ifCond = 0x0001, /* IF condition was true */
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ifElse = 0x0002, /* We had a .ELSE branch */
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ifNeedTerm = 0x0004 /* Need .ENDIF termination */
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ifNone = 0x0000, /* No flag */
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ifCond = 0x0001, /* IF condition was true */
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ifElse = 0x0002, /* We had a .ELSE branch */
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ifNeedTerm = 0x0004, /* Need .ENDIF termination */
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};
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/* The overall .IF condition */
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int IfCond = 1;
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/*****************************************************************************/
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/* struct IfDesc */
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/* struct IfDesc */
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/*****************************************************************************/
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@ -95,7 +98,7 @@ static IfDesc* AllocIf (const char* Directive, int NeedTerm)
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}
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/* Alloc one element */
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ID = &IfStack [IfCount++];
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ID = &IfStack[IfCount++];
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/* Initialize elements */
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ID->Flags = NeedTerm? ifNeedTerm : ifNone;
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@ -115,7 +118,7 @@ static IfDesc* GetCurrentIf (void)
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if (IfCount == 0) {
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return 0;
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} else {
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return &IfStack [IfCount-1];
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return &IfStack[IfCount-1];
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}
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}
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@ -126,12 +129,12 @@ static void FreeIf (void)
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{
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int Done;
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do {
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IfDesc* D = GetCurrentIf();
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if (D == 0) {
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IfDesc* ID = GetCurrentIf();
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if (ID == 0) {
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Error (" Unexpected .ENDIF");
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Done = 1;
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} else {
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Done = (D->Flags & ifNeedTerm) != 0;
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Done = (ID->Flags & ifNeedTerm) != 0;
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--IfCount;
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}
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} while (!Done);
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@ -139,16 +142,17 @@ static void FreeIf (void)
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static int GetCurrentIfCond (void)
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/* Return the current condition based on all conditions on the stack */
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static void CalcOverallIfCond (void)
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/* Caclulate the overall condition based on all conditions on the stack */
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{
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unsigned Count;
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IfCond = 1;
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for (Count = 0; Count < IfCount; ++Count) {
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if ((IfStack[Count].Flags & ifCond) == 0) {
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return 0;
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IfCond = 0;
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break;
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}
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}
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return 1;
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}
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@ -165,30 +169,24 @@ static void SetIfCond (IfDesc* ID, int C)
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static void InvertIfCond (IfDesc* ID)
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/* Invert the current condition */
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static void ElseClause (IfDesc* ID, const char* Directive)
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/* Enter an .ELSE clause */
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{
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ID->Flags ^= ifCond;
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}
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static int GetElse (const IfDesc* ID)
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/* Return true if we had a .ELSE */
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{
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return (ID->Flags & ifElse) != 0;
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}
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static void SetElse (IfDesc* ID, int E)
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/* Set the .ELSE flag */
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{
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if (E) {
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ID->Flags |= ifElse;
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} else {
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ID->Flags &= ~ifElse;
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/* Check if we have an open .IF - otherwise .ELSE is not allowed */
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if (ID == 0) {
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Error ("Unexpected %s", Directive);
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return;
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}
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/* Check for a duplicate else, then remember that we had one */
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if (ID->Flags & ifElse) {
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/* We already had a .ELSE ! */
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Error ("Duplicate .ELSE");
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}
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ID->Flags |= ifElse;
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/* Condition is inverted now */
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ID->Flags ^= ifCond;
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}
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@ -204,82 +202,72 @@ void DoConditionals (void)
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{
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IfDesc* D;
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int IfCond = GetCurrentIfCond ();
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do {
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switch (CurTok.Tok) {
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case TOK_ELSE:
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D = GetCurrentIf ();
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if (D == 0) {
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Error ("Unexpected .ELSE");
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} else if (GetElse(D)) {
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/* We already had a .ELSE ! */
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Error ("Duplicate .ELSE");
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} else {
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/* Allow an .ELSE */
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InvertIfCond (D);
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SetElse (D, 1);
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GetFullLineInfo (&D->LineInfos, 0);
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D->Name = ".ELSE";
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IfCond = GetCurrentIfCond ();
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}
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/* Allow an .ELSE */
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ElseClause (D, ".ELSE");
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/* Remember the data for the .ELSE */
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GetFullLineInfo (&D->LineInfos, 0);
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D->Name = ".ELSE";
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/* Calculate the new overall condition */
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CalcOverallIfCond ();
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/* Skip .ELSE */
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NextTok ();
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ExpectSep ();
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ExpectSep ();
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break;
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case TOK_ELSEIF:
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D = GetCurrentIf ();
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if (D == 0) {
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Error ("Unexpected .ELSEIF");
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} else if (GetElse(D)) {
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/* We already had a .ELSE */
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Error ("Duplicate .ELSE");
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} else {
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/* Handle as if there was an .ELSE first */
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InvertIfCond (D);
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SetElse (D, 1);
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/* Handle as if there was an .ELSE first */
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ElseClause (D, ".ELSEIF");
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/* Allocate and prepare a new descriptor */
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D = AllocIf (".ELSEIF", 0);
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NextTok ();
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/* Allocate and prepare a new descriptor */
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D = AllocIf (".ELSEIF", 0);
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NextTok ();
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/* Ignore the new condition if we are inside a false .ELSE
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* branch. This way we won't get any errors about undefined
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* symbols or similar...
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*/
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if (IfCond == 0) {
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SetIfCond (D, ConstExpression ());
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ExpectSep ();
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}
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/* Ignore the new condition if we are inside a false .ELSE
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* branch. This way we won't get any errors about undefined
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* symbols or similar...
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*/
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if (IfCond == 0) {
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SetIfCond (D, ConstExpression ());
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ExpectSep ();
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}
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/* Get the new overall condition */
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IfCond = GetCurrentIfCond ();
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}
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break;
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/* Get the new overall condition */
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CalcOverallIfCond ();
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break;
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case TOK_ENDIF:
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/* We're done with this .IF.. - remove the descriptor(s) */
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FreeIf ();
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case TOK_ENDIF:
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/* We're done with this .IF.. - remove the descriptor(s) */
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FreeIf ();
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/* Be sure not to read the next token until the .IF stack
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* has been cleanup up, since we may be at end of file.
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*/
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NextTok ();
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ExpectSep ();
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/* Be sure not to read the next token until the .IF stack
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* has been cleanup up, since we may be at end of file.
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*/
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NextTok ();
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ExpectSep ();
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/* Get the new overall condition */
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IfCond = GetCurrentIfCond ();
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break;
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/* Get the new overall condition */
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CalcOverallIfCond ();
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break;
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case TOK_IF:
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D = AllocIf (".IF", 1);
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NextTok ();
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if (IfCond) {
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SetIfCond (D, ConstExpression ());
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ExpectSep ();
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SetIfCond (D, ConstExpression ());
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ExpectSep ();
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}
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IfCond = GetCurrentIfCond ();
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CalcOverallIfCond ();
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break;
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case TOK_IFBLANK:
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@ -293,7 +281,7 @@ void DoConditionals (void)
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SkipUntilSep ();
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}
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}
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IfCond = GetCurrentIfCond ();
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CalcOverallIfCond ();
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break;
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case TOK_IFCONST:
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@ -305,7 +293,7 @@ void DoConditionals (void)
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FreeExpr (Expr);
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ExpectSep ();
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}
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IfCond = GetCurrentIfCond ();
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CalcOverallIfCond ();
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break;
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case TOK_IFDEF:
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@ -315,7 +303,7 @@ void DoConditionals (void)
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SymEntry* Sym = ParseAnySymName (SYM_FIND_EXISTING);
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SetIfCond (D, Sym != 0 && SymIsDef (Sym));
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}
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IfCond = GetCurrentIfCond ();
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CalcOverallIfCond ();
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break;
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case TOK_IFNBLANK:
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@ -329,7 +317,7 @@ void DoConditionals (void)
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SkipUntilSep ();
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}
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}
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IfCond = GetCurrentIfCond ();
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CalcOverallIfCond ();
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break;
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case TOK_IFNCONST:
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@ -341,7 +329,7 @@ void DoConditionals (void)
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FreeExpr (Expr);
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ExpectSep ();
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}
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IfCond = GetCurrentIfCond ();
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CalcOverallIfCond ();
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break;
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case TOK_IFNDEF:
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@ -352,7 +340,7 @@ void DoConditionals (void)
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SetIfCond (D, Sym == 0 || !SymIsDef (Sym));
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ExpectSep ();
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}
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IfCond = GetCurrentIfCond ();
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CalcOverallIfCond ();
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break;
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case TOK_IFNREF:
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@ -363,7 +351,7 @@ void DoConditionals (void)
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SetIfCond (D, Sym == 0 || !SymIsRef (Sym));
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ExpectSep ();
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}
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IfCond = GetCurrentIfCond ();
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CalcOverallIfCond ();
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break;
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case TOK_IFP02:
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@ -372,8 +360,8 @@ void DoConditionals (void)
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if (IfCond) {
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SetIfCond (D, GetCPU() == CPU_6502);
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}
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IfCond = GetCurrentIfCond ();
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ExpectSep ();
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CalcOverallIfCond ();
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break;
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case TOK_IFP816:
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@ -382,8 +370,8 @@ void DoConditionals (void)
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if (IfCond) {
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SetIfCond (D, GetCPU() == CPU_65816);
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}
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IfCond = GetCurrentIfCond ();
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ExpectSep ();
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CalcOverallIfCond ();
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break;
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case TOK_IFPC02:
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@ -392,8 +380,8 @@ void DoConditionals (void)
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if (IfCond) {
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SetIfCond (D, GetCPU() == CPU_65C02);
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}
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IfCond = GetCurrentIfCond ();
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ExpectSep ();
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CalcOverallIfCond ();
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break;
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case TOK_IFPSC02:
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@ -402,8 +390,8 @@ void DoConditionals (void)
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if (IfCond) {
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SetIfCond (D, GetCPU() == CPU_65SC02);
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}
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IfCond = GetCurrentIfCond ();
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ExpectSep ();
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CalcOverallIfCond ();
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break;
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case TOK_IFREF:
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@ -414,7 +402,7 @@ void DoConditionals (void)
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SetIfCond (D, Sym != 0 && SymIsRef (Sym));
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ExpectSep ();
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}
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IfCond = GetCurrentIfCond ();
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CalcOverallIfCond ();
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break;
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default:
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@ -488,6 +476,9 @@ void CheckOpenIfs (void)
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LIError (&D->LineInfos, "Conditional assembly branch was never closed");
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FreeIf ();
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}
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/* Calculate the new overall .IF condition */
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CalcOverallIfCond ();
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}
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@ -506,6 +497,9 @@ void CleanupIfStack (unsigned SP)
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while (IfCount > SP) {
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FreeIf ();
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}
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/* Calculate the new overall .IF condition */
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CalcOverallIfCond ();
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}
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@ -6,10 +6,10 @@
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/* */
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/* */
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/* */
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/* (C) 2000-2003 Ullrich von Bassewitz */
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/* Römerstraße 52 */
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/* D-70794 Filderstadt */
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/* EMail: uz@cc65.org */
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/* (C) 2000-2011, Ullrich von Bassewitz */
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/* Roemerstrasse 52 */
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/* D-70794 Filderstadt */
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/* EMail: uz@cc65.org */
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/* */
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/* */
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/* This software is provided 'as-is', without any expressed or implied */
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@ -38,6 +38,17 @@
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/*****************************************************************************/
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/* Data */
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/*****************************************************************************/
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/* The overall .IF condition */
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extern int IfCond;
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/*****************************************************************************/
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/* Code */
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/*****************************************************************************/
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@ -42,6 +42,7 @@
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#include "strbuf.h"
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/* ca65 */
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#include "condasm.h"
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#include "error.h"
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#include "expr.h"
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#include "global.h"
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@ -661,8 +662,10 @@ void NextTok (void)
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/* Get the next raw token */
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NextRawTok ();
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/* In raw mode, pass the token unchanged */
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if (RawMode == 0) {
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/* In raw mode, or when output is suppressed via conditional assembly,
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* pass the token unchanged.
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*/
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if (RawMode == 0 && IfCond) {
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/* Execute token handling functions */
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switch (CurTok.Tok) {
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