Added routines to handle command line params

git-svn-id: svn://svn.cc65.org/cc65/trunk@2012 b7a2c559-68d2-44c3-8de9-860c34a00d81

libsrc/vic20/Makefile

@@ -38,6 +38,7 @@ OBJS =	_scrsize.o	\
 	kbhit.o		\
         kernal.o        \
         kplot.o         \
+        mainargs.o      \
         randomize.o     \
 	revers.o
 
@@ -66,4 +67,4 @@ clean:
 zap:	clean
 	@rm -f $(EMDS) $(JOYS) $(TGIS)
 
-		     
+

libsrc/vic20/crt0.s

@@ -7,7 +7,7 @@
 	.export		_exit
 	.import		initlib, donelib
        	.import	       	zerobss, push0
-	.import	     	_main
+	.import	     	callmain
         .import         RESTOR, BSOUT, CLRCH
      	.import		__RAM_START__, __RAM_SIZE__	; Linker generated
 
@@ -75,13 +75,9 @@ L1:	lda	sp,x
 
 	jsr	initlib
 
-; Pass an empty command line
+; Push arguments and call main()
 
-       	jsr    	push0 	  	; argc
-	jsr	push0	  	; argv
-
-	ldy	#4	  	; Argument size
-       	jsr    	_main	  	; call the users code
+       	jsr    	callmain
 
 ; Call module destructors. This is also the _exit entry.
 

libsrc/vic20/mainargs.s

@@ -0,0 +1,21 @@
+;
+; Ullrich von Bassewitz, 2003-03-07
+;
+; Setup arguments for main
+;
+
+
+	.constructor    initmainargs, 24
+       	.import         __argc, __argv
+
+
+;---------------------------------------------------------------------------
+; Setup arguments for main
+
+.proc   initmainargs
+
+        rts
+
+.endproc
+
+