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From: dfawcus+lists-coff at (Derek Fawcus)
Subject: [COFF] Pointers for maths routines in "assembly"
Date: Mon, 25 May 2020 10:12:18 +0100	[thread overview]
Message-ID: <> (raw)
In-Reply-To: <>

On Mon, May 25, 2020 at 02:27:26PM +1000, Warren Toomey wrote:
> Next question, is it possible to do 16-bit division when the hardware
> can only do 8-bit divided by 8-bit. Ditto 16-bit modulo with only 8-bit
> modulo?

I believe so.

I've seen code for a 68000 to do division of 32 bit values when the chip
only provides for division of 16 bit values.  So the same approach should
apply for extending an 8 bit divide to provide 16 bit division.

The book I have this in attributes the algorith to a Dr. Arthur Norman.


Section 5.8 & 5.9, page 99 in the actual printed book.


      parent reply	other threads:[~2020-05-25  9:12 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-25  4:27 wkt
2020-05-25  5:22 ` ralph
2020-05-25  9:12 ` dfawcus+lists-coff [this message]

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