Added routines to handle command line params

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

libsrc/plus4/Makefile

@@ -60,6 +60,7 @@ OBJS =	_scrsize.o	\
         ktalk.o         \
         kunlsn.o        \
         kuntlk.o        \
+        mainargs.o      \
         randomize.o     \
         revers.o        \
 	tgi_mode_table.o

libsrc/plus4/crt0.s

@@ -8,7 +8,7 @@
         .export         brk_jmp
 
 	.import		condes, initlib, donelib
-	.import	     	push0, _main, zerobss
+	.import	     	push0, callmain, zerobss
 	.import	       	__IRQFUNC_TABLE__, __IRQFUNC_COUNT__
 
         .include        "zeropage.inc"
@@ -99,13 +99,9 @@ L1:	lda	sp,x
       	stx	IRQVec+1
       	cli
 
-; Pass an empty command line
+; Push arguments and call main()
 
-NoIRQ1: jsr    	push0		; argc
-	jsr	push0		; argv
-
-	ldy	#4    		; Argument size
-       	jsr    	_main 		; call the users code
+NoIRQ1: jsr    	callmain
 
 ; Back from main (this is also the _exit entry). Reset the IRQ vector if
 ; we chained it.

libsrc/plus4/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
+
+