Add cc65 artifacts to repo for now

cc65/asminc/zeropage.inc

@@ -0,0 +1,40 @@
+;
+; zeropage.inc
+;
+; (C) Copyright 2002-2012, Ullrich von Bassewitz (uz@cc65.org)
+;
+
+; Assembler include file that imports the runtime zero page locations used
+; by the compiler, ready for usage in asm code.
+
+
+        .globalzp       c_sp, sreg, regsave
+        .globalzp       ptr1, ptr2, ptr3, ptr4
+        .globalzp       tmp1, tmp2, tmp3, tmp4
+        .globalzp       regbank
+
+; FIXME: there must be a less ugly way to do this
+.ifp4510
+.else
+.ifp45GS02
+.else
+
+        ; The following symbol is supplied for compatibility reasons only, it
+        ; will get removed in future versions. Using it will cause a linker
+        ; warning.
+        .globalzp       sp
+.endif
+.endif
+
+
+; The size of the register bank
+regbanksize     = 6
+
+; The total amount of zero page space used
+zpspace         = 26
+
+; The amount of space that needs to be saved by an interrupt handler that
+; calls C code (does not include the register bank, which is saved by the
+; generated C code if required).
+zpsavespace     = zpspace - regbanksize
+