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21 lines
543 B
ArmAsm
21 lines
543 B
ArmAsm
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; Ullrich von Bassewitz, 17.08.1998
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; CC65 runtime: division for signed long ints
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;
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; When negating values, we will ignore the possibility here, that one of the
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; values if $80000000, in which case the negate will fail.
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.export tosdiveax
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.import poplsargs, udiv32, adjlsres
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.importzp ptr1
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tosdiveax:
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jsr poplsargs ; Get arguments from stack, adjust sign
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jsr udiv32 ; Do the division
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lda ptr1 ; Result is in (ptr1:sreg)
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ldx ptr1+1
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jmp adjlsres ; Adjust the sign of the result if needed
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