Removed the old stack checking routine

git-svn-id: svn://svn.cc65.org/cc65/trunk@630 b7a2c559-68d2-44c3-8de9-860c34a00d81

libsrc/common/Makefile

@@ -91,7 +91,6 @@ S_OBJS = 	_fdesc.o	\
 	 	rand.o	      	\
 	 	setjmp.o      	\
 		sprintf.o	\
-		stkcheck.o  	\
 		strcat.o    	\
 		strchr.o	\
 		strcmp.o	\

libsrc/common/stkcheck.s

@@ -1,48 +0,0 @@
-;
-; Ullrich von Bassewitz, 18.08.1998
-;
-; Stack checker
-;
-
-
-	.export		_stkcheck, __stksafety
-	.import		pushax, exit
-	.import		__hend
-	.importzp	sp
-
-.data
-__stksafety:
-     	.word	64			;
-
-.code
-_stkcheck:
-	clc
-	lda	__hend
-	adc	__stksafety
-	tax				; Remember low byte
-	lda	__hend+1
-	adc	__stksafety+1
-
-	cmp	sp+1
-	bcc	Ok
-       	bne	L1
-	cpx	sp
-	bcc	Ok
-
-; Stack overflow
-
-L1:    	inc	sp+1			; Create 256 bytes of space
-	ldx    	#0
-	lda	#4
-	jsr	pushax
-	jmp	exit
-
-; All is well
-
-Ok:	rts
-
-
-
-
-
-