Support additional o65 attributes.

Add a special ID for the cc65 operating system that is written to the OS
field of the options header.


git-svn-id: svn://svn.cc65.org/cc65/trunk@1254 b7a2c559-68d2-44c3-8de9-860c34a00d81

src/ld65/config.c

@@ -104,17 +104,6 @@ unsigned	       	SegDescCount;	/* Number of entries in list */
 static BinDesc*	BinFmtDesc	= 0;
 static O65Desc* O65FmtDesc	= 0;
 
-/* Attributes for the o65 format */
-static unsigned O65Attr	= 0;
-#define OA_OS		0x0001
-#define OA_TYPE		0x0002
-#define OA_VERSION	0x0004
-#define OA_OSVERSION	0x0008
-#define OA_TEXT		0x0010
-#define OA_DATA		0x0020
-#define OA_BSS		0x0040
-#define OA_ZP		0x0080
-
 
 
 /*****************************************************************************/
@@ -806,6 +795,8 @@ static void ParseO65 (void)
 	{   "IMPORT",	CFGTOK_IMPORT		},
         {   "TYPE",     CFGTOK_TYPE     	},
        	{   "OS",      	CFGTOK_OS       	},
+       	{   "ID",      	CFGTOK_ID       	},
+       	{   "VERSION",  CFGTOK_VERSION          },
     };
     static const IdentTok Types [] = {
        	{   "SMALL",   	CFGTOK_SMALL    	},
@@ -817,6 +808,25 @@ static void ParseO65 (void)
         {   "CC65",     CFGTOK_CC65             },
     };
 
+    /* Bitmask to remember the attributes we got already */
+    enum {
+       	atNone		= 0x0000,
+	atOS            = 0x0001,
+        atOSVersion     = 0x0002,
+	atType	       	= 0x0004,
+	atImport        = 0x0008,
+	atExport    	= 0x0010,
+        atID            = 0x0020,
+        atVersion       = 0x0040
+    };
+    unsigned AttrFlags = atNone;
+
+    /* Remember the attributes read */
+    unsigned OS = 0;            /* Initialize to keep gcc happy */
+    unsigned ID = 0;            /* Dito */
+    unsigned Version = 0;
+
+    /* Read the attributes */
     while (CfgTok == CFGTOK_IDENT) {
 
 	/* Map the identifier to a token */
@@ -832,6 +842,8 @@ static void ParseO65 (void)
 	switch (AttrTok) {
 
 	    case CFGTOK_EXPORT:
+                /* Remember we had this token (maybe more than once) */
+                AttrFlags |= atExport;
 	      	/* We expect an identifier */
 		CfgAssureIdent ();
 	        /* Check if the export symbol is also defined as an import. */
@@ -850,6 +862,8 @@ static void ParseO65 (void)
 	    	break;
 
 	    case CFGTOK_IMPORT:
+                /* Remember we had this token (maybe more than once) */
+                AttrFlags |= atImport;
 	      	/* We expect an identifier */
 		CfgAssureIdent ();
 	        /* Check if the imported symbol is also defined as an export. */
@@ -869,7 +883,7 @@ static void ParseO65 (void)
 
 	    case CFGTOK_TYPE:
 		/* Cannot have this attribute twice */
-		FlagAttr (&O65Attr, OA_TYPE, "TYPE");
+		FlagAttr (&AttrFlags, atType, "TYPE");
 		/* Get the type of the executable */
 		CfgSpecialToken (Types, ENTRY_COUNT (Types), "Type");
 		switch (CfgTok) {
@@ -889,28 +903,35 @@ static void ParseO65 (void)
 
 	    case CFGTOK_OS:
 		/* Cannot use this attribute twice */
-		FlagAttr (&O65Attr, OA_OS, "OS");
+	  	FlagAttr (&AttrFlags, atOS, "OS");
 		/* Get the operating system */
 	    	CfgSpecialToken (OperatingSystems, ENTRY_COUNT (OperatingSystems), "OS type");
 		switch (CfgTok) {
-
+		    case CFGTOK_LUNIX:  OS = O65OS_LUNIX;       break;
-		    case CFGTOK_LUNIX:
+		    case CFGTOK_OSA65:  OS = O65OS_OSA65;       break;
-		    	O65SetOS (O65FmtDesc, O65OS_LUNIX);
+		    case CFGTOK_CC65:   OS = O65OS_CC65;        break;
-		    	break;
+		    default:            CfgError ("Unexpected OS token");
-
-		    case CFGTOK_OSA65:
-		    	O65SetOS (O65FmtDesc, O65OS_OSA65);
-		    	break;
-
-		    case CFGTOK_CC65:
-		    	O65SetOS (O65FmtDesc, O65OS_CC65);
-		    	break;
-
-		    default:
-			CfgError ("Unexpected OS token");
 		}
 		break;
 
+            case CFGTOK_ID:
+                /* Cannot have this attribute twice */
+                FlagAttr (&AttrFlags, atID, "ID");
+                /* We're expecting a number in the 0..$FFFF range*/
+                CfgAssureInt ();
+                CfgRangeCheck (0, 0xFFFF);
+                ID = (unsigned) CfgIVal;
+                break;
+
+            case CFGTOK_VERSION:
+                /* Cannot have this attribute twice */
+                FlagAttr (&AttrFlags, atVersion, "VERSION");
+                /* We're expecting a number in byte range */
+                CfgAssureInt ();
+                CfgRangeCheck (0, 0xFF);
+                Version = (unsigned) CfgIVal;
+                break;
+
 	    default:
 		FAIL ("Unexpected attribute token");
 
@@ -920,6 +941,23 @@ static void ParseO65 (void)
 	CfgNextTok ();
 	CfgOptionalComma ();
     }
+
+    /* Check if we have all mandatory attributes */
+    AttrCheck (AttrFlags, atOS, "OS");
+
+    /* Check for attributes that may not be combined */
+    if (OS == O65OS_CC65) {
+        if ((AttrFlags & (atImport | atExport)) != 0) {
+            CfgError ("OS type CC65 may not have imports or exports");
+        }
+    } else {
+        if (AttrFlags & atID) {
+            CfgError ("Operating system does not support the ID attribute");
+        }
+    }
+
+    /* Set the O65 operating system to use */
+    O65SetOS (O65FmtDesc, OS, Version, ID);
 }
 
 

src/ld65/o65.c

@@ -1008,31 +1008,31 @@ void O65SetOption (O65Desc* D, unsigned Type, const void* Data, unsigned DataLen
 
 
 
-void O65SetOS (O65Desc* D, unsigned OS)
+void O65SetOS (O65Desc* D, unsigned OS, unsigned Version, unsigned Id)
 /* Set an option describing the target operating system */
 {
-    static const unsigned char OSA65 [2] = { O65OS_OSA65, 0 };
+    /* Setup the option data */
-    static const unsigned char Lunix [2] = { O65OS_LUNIX, 0 };
+    unsigned char Opt[4];
-    static const unsigned char CC65 [4]  = { O65OS_CC65, 0, 0, 0 };
+    Opt[0] = OS;
+    Opt[1] = Version;
 
-    /* Write the correct option */
+    /* Write the correct option length */
     switch (OS) {
-
 	case O65OS_OSA65:
-	    O65SetOption (D, O65OPT_OS, OSA65, sizeof (OSA65));
-	    break;
-
     	case O65OS_LUNIX:
-	    O65SetOption (D, O65OPT_OS, Lunix, sizeof (Lunix));
+            /* No id for these two */
+       	    O65SetOption (D, O65OPT_OS, Opt, 2);
 	    break;
 
     	case O65OS_CC65:
-	    O65SetOption (D, O65OPT_OS, CC65, sizeof (CC65));
+            /* Set the 16 bit id */
+            Opt[2] = (unsigned char) Id;
+            Opt[3] = (unsigned char) (Id >> 8);
+	    O65SetOption (D, O65OPT_OS, Opt, 4);
 	    break;
 
 	default:
 	    Internal ("Trying to set invalid O65 operating system: %u", OS);
-
     }
 }
 

src/ld65/o65.h

@@ -98,7 +98,7 @@ void O65SetAlignment (O65Desc* D, unsigned Align);
 void O65SetOption (O65Desc* D, unsigned Type, const void* Data, unsigned DataLen);
 /* Set an o65 header option */
 
-void O65SetOS (O65Desc* D, unsigned OS);
+void O65SetOS (O65Desc* D, unsigned OS, unsigned Version, unsigned Id);
 /* Set an option describing the target operating system */
 
 ExtSym* O65GetImport (O65Desc* D, const char* Ident);

src/ld65/scanner.h

@@ -77,6 +77,8 @@ typedef enum {
     CFGTOK_EXPORT,
     CFGTOK_IMPORT,
     CFGTOK_OS,
+    CFGTOK_ID,
+    CFGTOK_VERSION,
     CFGTOK_FORMAT,
 
     CFGTOK_LOAD,