Use the new declarations from the zeropage include file. In interrupt handlers

that call C code, we don't need to save the register bank, because the C code
will save it, when needed.


git-svn-id: svn://svn.cc65.org/cc65/trunk@5909 b7a2c559-68d2-44c3-8de9-860c34a00d81

libsrc/runtime/zeropage.s

@@ -4,10 +4,7 @@
 ; CC65 runtime: zeropage usage
 ;
 
-	.exportzp   	sp, sreg, regsave
-	.exportzp   	ptr1, ptr2, ptr3, ptr4
-	.exportzp   	tmp1, tmp2, tmp3, tmp4
-	.exportzp   	regbank
+.include        "zeropage.inc"
 
 ; ------------------------------------------------------------------------
 
@@ -15,7 +12,7 @@
 
 sp:	      	.res   	2      	; Stack pointer
 sreg:	      	.res	2      	; Secondary register/high 16 bit for longs
-regsave:      	.res	4      	; slot to save/restore (E)AX into
+regsave:      	.res	4      	; Slot to save/restore (E)AX into
 ptr1:	      	.res	2
 ptr2:	      	.res	2
 ptr3:	      	.res	2
@@ -24,7 +21,7 @@ tmp1:	      	.res	1
 tmp2:	      	.res	1
 tmp3:	      	.res	1
 tmp4:	      	.res	1
-regbank:      	.res	6      	; 6 byte register bank
+regbank:       	.res   	regbanksize     ; Register bank
 
 ; Add an empty EXTZP zeropage segment to avoid linker warnings that this
 ; segment does not exist (it does not exist in most builtin linker configs