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cc65/libsrc/common/_heap.s
Oliver Schmidt 419eb700b5 Renamed INITBSS to INIT and INIT to ONCE.
The way we want to use the INITBSS segment - and especially the fact that it won't have the type bss on all ROM based targets - means that the name INITBSS is misleading. After all INIT is the best name from my perspective as it serves several purposes and therefore needs a rather generic name.

Unfortunately this means that the current INIT segment needs to be renamed too. Looking for a short (ideally 4 letter) name I came up with ONCE as it contains all code (and data) accessed only once during initialization.
2016-03-06 21:27:19 +01:00

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815 B
ArmAsm

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