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40 lines
635 B
ArmAsm
40 lines
635 B
ArmAsm
;
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; Ullrich von Bassewitz, 03.06.1998
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;
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; Heap variables and initialization.
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;
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.export __horg, __hptr, __hend, __hfirst, __hlast
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.constructor initheap, 24
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.import __BSS_RUN__, __BSS_SIZE__, __stksize
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.importzp sp
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.data
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__horg:
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.word __BSS_RUN__+__BSS_SIZE__ ; Linker calculates this symbol
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__hptr:
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.word __BSS_RUN__+__BSS_SIZE__ ; Dito
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__hend:
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.word __BSS_RUN__+__BSS_SIZE__
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__hfirst:
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.word 0
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__hlast:
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.word 0
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; Initialization. Will be called from startup!
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.code
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initheap:
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sec
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lda sp
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sbc __stksize
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sta __hend
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lda sp+1
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sbc __stksize+1
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sta __hend+1
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rts
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