Added routines to handle command line params

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

libsrc/atmos/Makefile

@@ -20,6 +20,7 @@
 C_OBJS =
 
 S_OBJS  =       crt0.o          \
+                mainargs.o      \
                 systime.o
 
 #--------------------------------------------------------------------------

libsrc/atmos/crt0.s

@@ -8,7 +8,7 @@
 
 	.export		_exit
 	.import		initlib, donelib
-	.import	     	push0, _main, zerobss
+	.import	     	push0, callmain, zerobss
 	.import		__RAM_START__, __RAM_SIZE__	; Linker generated
 
         .importzp       sp
@@ -41,13 +41,9 @@
 
 	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/atmos/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
+
+