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; Ullrich von Bassewitz, 25.10.2000
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; CC65 runtime: Decrement the stackpointer by 4
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.export decsp4
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.importzp sp
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.proc decsp4
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lda sp
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sec
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sbc #4
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sta sp
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bcc @L1
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rts
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@L1: dec sp+1
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rts
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.endproc
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