2000-05-28 13:40:48 +00:00
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;
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; Ullrich von Bassewitz, 07.08.1998
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;
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; CC65 runtime: modulo operation for unsigned ints
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;
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2013-05-09 13:56:54 +02:00
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.export tosumoda0, tosumodax
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2018-05-24 03:55:40 +02:00
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.import popptr1, udiv16
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.importzp sreg, ptr4
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2000-05-28 13:40:48 +00:00
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tosumoda0:
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2013-05-09 13:56:54 +02:00
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ldx #0
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2000-05-28 13:40:48 +00:00
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tosumodax:
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2013-05-09 13:56:54 +02:00
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sta ptr4
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stx ptr4+1 ; Save right operand
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2018-05-24 03:55:40 +02:00
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jsr popptr1 ; Get right operand
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2000-05-28 13:40:48 +00:00
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; Do the division
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2013-05-09 13:56:54 +02:00
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jsr udiv16
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2000-05-28 13:40:48 +00:00
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2018-05-24 03:55:40 +02:00
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; Result is in ptr1, remainder in sreg
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2000-05-28 13:40:48 +00:00
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2018-05-24 03:55:40 +02:00
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lda sreg
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ldx sreg+1
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2013-05-09 13:56:54 +02:00
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rts
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2000-05-28 13:40:48 +00:00
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2022-04-17 16:06:22 +02:00
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