68k patents

Ask anything your want about Megadrive/Genesis programming.

Moderator: BigEvilCorporation

Post Reply
User avatar
Very interested
Posts: 50
Joined: Tue Sep 23, 2014 2:39 pm
Location: France

68k patents

Post by flamewing » Sat Oct 13, 2018 10:28 am

I have been taking a dive in the 68k patents recently, trying to find if there was a version with a more recent version of the microcode. Additionally, I was also looking to see if any other patents might have the microcode from page 164 of US4325121, which is cut off, or maybe some additional information on how corf is computed, and so on. In the process, I tracked a few patents that have some interesting information which do not seem to be available elsewhere. Sources searched were US, European, and Japanese patents; but for Japanese patents, I only really bothered with one patent because you can't download a PDF from the JPO website.

Here is the full list of 68k patents I found, with links.
Anyway, still need to go through everything in these patents, but they sadly don't seem to give nearly as much information as I hoped. Still, there are some new circuits that may be of use in understanding parts of the 68k.

Post Reply

Who is online

Users browsing this forum: No registered users and 2 guests