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| From: Bionic (all posts)
Date: 2000-07-25
Subject: Re: ADC - SBC
|
> > 1. What exactly happens when I am trying to add a number to a non-
> > decimal coded number (semi-tetrade?) in decimal mode.
>
> I investigated this in 1993 or so. The results are documented in a file
> "64doc" that you can find e.g. on ftp.funet.fi. The document includes a
Did you ever want to know how it really works ? ;) Check out the patent on it:
http://www.patents.ibm.com/details?pn=US03991307__
The adder was one of the main innovations in the 6502 on hardware level.
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