;
; Ullrich von Bassewitz, 03.06.1998
;
; Heap variables and initialization.
;

       	.constructor	initheap, 24
       	.import	       	__BSS_RUN__, __BSS_SIZE__, __STACKSIZE__
	.importzp	sp

        .include        "_heap.inc"


.data

__heaporg:
       	.word  	__BSS_RUN__+__BSS_SIZE__	; Linker calculates this symbol
__heapptr:
      	.word	__BSS_RUN__+__BSS_SIZE__	; Dito
__heapend:
       	.word	__BSS_RUN__+__BSS_SIZE__
__heapfirst:
      	.word	0
__heaplast:
      	.word	0


; Initialization. Will be called from startup!

.segment        "INIT"

initheap:
      	sec
      	lda	sp
      	sbc	#<__STACKSIZE__
      	sta	__heapend
      	lda	sp+1
	sbc	#>__STACKSIZE__
	sta	__heapend+1
	rts

                      
